Demo project only:
Added comprehensive demo including FreeRTOS+CLI to the Cyclone V SoC project.pull/4/head
Richard Barry
10 years ago
parent
d269f2027a
commit
e0d9a274e2
@ -0,0 +1,47 @@
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/******************************************************************************
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*
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* Copyright 2013 Altera Corporation. All Rights Reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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||||
*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER "AS IS" AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE DISCLAIMED. IN NO
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* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*
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******************************************************************************/
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#ifndef UART0_SUPPORT_H_
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#define UART0_SUPPORT_H_
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#include "hwlib.h"
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#ifndef MIN
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#define MIN(a, b) ((a) > (b) ? (b) : (a))
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#endif
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ALT_STATUS_CODE uart0_init(void);
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ALT_STATUS_CODE uart0_uninit(void);
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ALT_STATUS_CODE uart0_print(const char *in_str);
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int uart0_printf(const char *fmt, ...);
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int uart0_getc(void);
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#endif /* UART0_SUPPORT_H_ */
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/* md5sum:92afebd032496f820e400acbb3658d11 2013-09-28 20:48:16 */
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@ -0,0 +1,179 @@
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/******************************************************************************
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*
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* Copyright 2013 Altera Corporation. All Rights Reserved.
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*
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* Redistribution and use in source and binary forms, with or without
|
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* modification, are permitted provided that the following conditions are met:
|
||||
*
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* 1. Redistributions of source code must retain the above copyright notice,
|
||||
* this list of conditions and the following disclaimer.
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||||
*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
|
||||
* this list of conditions and the following disclaimer in the documentation
|
||||
* and/or other materials provided with the distribution.
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*
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* 3. The name of the author may not be used to endorse or promote products
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||||
* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER "AS IS" AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
||||
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE DISCLAIMED. IN NO
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* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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||||
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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||||
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*
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******************************************************************************/
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#include <stdio.h>
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#include <stdarg.h>
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#include <string.h>
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#include "alt_16550_uart.h"
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#include "uart0_support.h"
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static ALT_16550_HANDLE_t g_uart0_handle;
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ALT_STATUS_CODE uart0_init(void) {
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ALT_STATUS_CODE status;
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status = alt_16550_init(ALT_16550_DEVICE_SOCFPGA_UART0, 0, 0, &g_uart0_handle);
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status += alt_16550_line_config_set(&g_uart0_handle, ALT_16550_DATABITS_8, ALT_16550_PARITY_DISABLE, ALT_16550_STOPBITS_1);
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status += alt_16550_baudrate_set(&g_uart0_handle, ALT_16550_BAUDRATE_115200);
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status += alt_16550_fifo_enable(&g_uart0_handle);
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status += alt_16550_enable(&g_uart0_handle);
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return status;
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}
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ALT_STATUS_CODE uart0_uninit(void) {
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ALT_STATUS_CODE status;
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status += alt_16550_disable(&g_uart0_handle);
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status += alt_16550_fifo_disable(&g_uart0_handle);
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status += alt_16550_uninit(&g_uart0_handle);
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return status;
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}
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ALT_STATUS_CODE uart0_print(const char *in_str) {
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ALT_STATUS_CODE status = ALT_E_SUCCESS;
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int i;
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int len = strlen(in_str);
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uint32_t size_tx;
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if (status == ALT_E_SUCCESS) {
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status = alt_16550_fifo_size_get_tx(&g_uart0_handle, &size_tx);
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}
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for (i = 0; i < 1000; ++i)
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{
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if (status != ALT_E_SUCCESS) {
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break;
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}
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if (len == 0) {
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break;
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}
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// Wait for the THRE line status
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int j = 1000000;
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while (--j) {
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uint32_t line_status = 0;
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status = alt_16550_line_status_get(&g_uart0_handle, &line_status);
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if (status != ALT_E_SUCCESS) {
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break;
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}
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if (line_status & (ALT_16550_LINE_STATUS_THRE | ALT_16550_LINE_STATUS_TEMT)) {
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break;
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}
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}
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if (j == 0) {
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status = ALT_E_TMO;
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}
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uint32_t level_tx;
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if (status == ALT_E_SUCCESS) {
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status = alt_16550_fifo_level_get_tx(&g_uart0_handle, &level_tx);
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}
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if (status == ALT_E_SUCCESS) {
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uint32_t size_write = MIN(len, size_tx - level_tx);
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status = alt_16550_fifo_write(&g_uart0_handle, in_str, size_write);
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if (status == ALT_E_SUCCESS) {
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len -= size_write;
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in_str += size_write;
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}
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}
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}
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return status;
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}
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int uart0_printf(const char *fmt, ...) {
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ALT_STATUS_CODE status = ALT_E_SUCCESS;
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int len = 0;
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char buffer[1024];
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va_list vl;
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va_start(vl, fmt);
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len = vsnprintf(buffer, sizeof(buffer), fmt, vl);
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va_end(vl);
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if(len >= sizeof(buffer)) {
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buffer[sizeof(buffer) - 1] = '\0';
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status = uart0_print(buffer);
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if( status != ALT_E_SUCCESS)
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return status;
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status = uart0_print("\r\nERROR: uart0_printf_buffer overflow...\r\n");
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if( status != ALT_E_SUCCESS)
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return status;
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} else {
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status = uart0_print(buffer);
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if( status != ALT_E_SUCCESS)
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return status;
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}
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return len;
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}
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int uart0_getc(void) {
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ALT_STATUS_CODE status = ALT_E_SUCCESS;
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int ret_val = EOF;
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uint32_t level;
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status = alt_16550_fifo_level_get_rx(&g_uart0_handle, &level);
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if(status != ALT_E_SUCCESS)
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return ret_val;
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if(level > 0) {
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char buffer;
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status = alt_16550_fifo_read(&g_uart0_handle, &buffer, 1);
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if(status != ALT_E_SUCCESS)
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return ret_val;
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else
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return buffer;
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}
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return ret_val;
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}
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/* md5sum:3086bef986334caa60e4e70a63fba834 2013-09-28 20:48:16 */
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@ -0,0 +1,140 @@
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/*
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FreeRTOS V8.1.2 - Copyright (C) 2014 Real Time Engineers Ltd.
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All rights reserved
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VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
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***************************************************************************
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* *
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* FreeRTOS provides completely free yet professionally developed, *
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* robust, strictly quality controlled, supported, and cross *
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* platform software that has become a de facto standard. *
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* *
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* Help yourself get started quickly and support the FreeRTOS *
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* project by purchasing a FreeRTOS tutorial book, reference *
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* manual, or both from: http://www.FreeRTOS.org/Documentation *
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* *
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* Thank you! *
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* *
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***************************************************************************
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This file is part of the FreeRTOS distribution.
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FreeRTOS is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License (version 2) as published by the
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Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception.
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>>! NOTE: The modification to the GPL is included to allow you to !<<
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>>! distribute a combined work that includes FreeRTOS without being !<<
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>>! obliged to provide the source code for proprietary components !<<
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||||
>>! outside of the FreeRTOS kernel. !<<
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||||
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FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY
|
||||
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. Full license text is available from the following
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link: http://www.freertos.org/a00114.html
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1 tab == 4 spaces!
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||||
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***************************************************************************
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* *
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* Having a problem? Start by reading the FAQ "My application does *
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* not run, what could be wrong?" *
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* *
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* http://www.FreeRTOS.org/FAQHelp.html *
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* *
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***************************************************************************
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http://www.FreeRTOS.org - Documentation, books, training, latest versions,
|
||||
license and Real Time Engineers Ltd. contact details.
|
||||
|
||||
http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
|
||||
including FreeRTOS+Trace - an indispensable productivity tool, a DOS
|
||||
compatible FAT file system, and our tiny thread aware UDP/IP stack.
|
||||
|
||||
http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High
|
||||
Integrity Systems to sell under the OpenRTOS brand. Low cost OpenRTOS
|
||||
licenses offer ticketed support, indemnification and middleware.
|
||||
|
||||
http://www.SafeRTOS.com - High Integrity Systems also provide a safety
|
||||
engineered and independently SIL3 certified version for use in safety and
|
||||
mission critical applications that require provable dependability.
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||||
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1 tab == 4 spaces!
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*/
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/*-----------------------------------------------------------
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* Simple IO routines to control the LEDs.
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*-----------------------------------------------------------*/
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/* Scheduler includes. */
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#include "FreeRTOS.h"
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#include "task.h"
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/* Demo includes. */
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#include "partest.h"
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/* Altera library includes. */
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#include "socal/socal.h"
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#include "socal/alt_gpio.h"
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#include "alt_generalpurpose_io.h"
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#include "alt_address_space.h"
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#define partstNUM_LEDS 4
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/*-----------------------------------------------------------*/
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const uint32_t ulLEDs[ partstNUM_LEDS ] = { ALT_GPIO_BIT12, ALT_GPIO_BIT13, ALT_GPIO_BIT14, ALT_GPIO_BIT15 };
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const uint32_t ulAllLEDs = ALT_GPIO_BIT12 | ALT_GPIO_BIT13 | ALT_GPIO_BIT14 | ALT_GPIO_BIT15;
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const uint32_t *pulPortBData = ALT_GPIO1_SWPORTA_DR_ADDR;
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static uint32_t ulPortValue;
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void vParTestInitialise( void )
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{
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/* Set GPIO direction. */
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alt_gpio_port_datadir_set( ALT_GPIO_PORTB, ulAllLEDs, ulAllLEDs );
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/* Start with all LEDs off. */
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alt_gpio_port_data_write( ALT_GPIO_PORTB, ulAllLEDs, ulAllLEDs );
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ulPortValue = ulAllLEDs;
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}
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/*-----------------------------------------------------------*/
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void vParTestSetLED( UBaseType_t uxLED, BaseType_t xValue )
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{
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if( uxLED < partstNUM_LEDS )
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{
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taskENTER_CRITICAL();
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{
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if( xValue == pdFALSE )
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{
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ulPortValue |= ulLEDs[ uxLED ];
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}
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else
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{
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ulPortValue &= ~ulLEDs[ uxLED ];
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}
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alt_replbits_word( pulPortBData, ulAllLEDs, ulPortValue );
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}
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taskEXIT_CRITICAL();
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}
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}
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/*-----------------------------------------------------------*/
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void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
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{
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if( uxLED < partstNUM_LEDS )
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{
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taskENTER_CRITICAL();
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{
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ulPortValue ^= ulLEDs[ uxLED ];
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alt_replbits_word( pulPortBData, ulAllLEDs, ulPortValue );
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}
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taskEXIT_CRITICAL();
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}
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}
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@ -0,0 +1,226 @@
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/*
|
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FreeRTOS V8.1.2 - Copyright (C) 2014 Real Time Engineers Ltd.
|
||||
All rights reserved
|
||||
|
||||
VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
|
||||
|
||||
***************************************************************************
|
||||
* *
|
||||
* FreeRTOS provides completely free yet professionally developed, *
|
||||
* robust, strictly quality controlled, supported, and cross *
|
||||
* platform software that has become a de facto standard. *
|
||||
* *
|
||||
* Help yourself get started quickly and support the FreeRTOS *
|
||||
* project by purchasing a FreeRTOS tutorial book, reference *
|
||||
* manual, or both from: http://www.FreeRTOS.org/Documentation *
|
||||
* *
|
||||
* Thank you! *
|
||||
* *
|
||||
***************************************************************************
|
||||
|
||||
This file is part of the FreeRTOS distribution.
|
||||
|
||||
FreeRTOS is free software; you can redistribute it and/or modify it under
|
||||
the terms of the GNU General Public License (version 2) as published by the
|
||||
Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception.
|
||||
|
||||
>>! NOTE: The modification to the GPL is included to allow you to !<<
|
||||
>>! distribute a combined work that includes FreeRTOS without being !<<
|
||||
>>! obliged to provide the source code for proprietary components !<<
|
||||
>>! outside of the FreeRTOS kernel. !<<
|
||||
|
||||
FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY
|
||||
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
|
||||
FOR A PARTICULAR PURPOSE. Full license text is available from the following
|
||||
link: http://www.freertos.org/a00114.html
|
||||
|
||||
1 tab == 4 spaces!
|
||||
|
||||
***************************************************************************
|
||||
* *
|
||||
* Having a problem? Start by reading the FAQ "My application does *
|
||||
* not run, what could be wrong?" *
|
||||
* *
|
||||
* http://www.FreeRTOS.org/FAQHelp.html *
|
||||
* *
|
||||
***************************************************************************
|
||||
|
||||
http://www.FreeRTOS.org - Documentation, books, training, latest versions,
|
||||
license and Real Time Engineers Ltd. contact details.
|
||||
|
||||
http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
|
||||
including FreeRTOS+Trace - an indispensable productivity tool, a DOS
|
||||
compatible FAT file system, and our tiny thread aware UDP/IP stack.
|
||||
|
||||
http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High
|
||||
Integrity Systems to sell under the OpenRTOS brand. Low cost OpenRTOS
|
||||
licenses offer ticketed support, indemnification and middleware.
|
||||
|
||||
http://www.SafeRTOS.com - High Integrity Systems also provide a safety
|
||||
engineered and independently SIL3 certified version for use in safety and
|
||||
mission critical applications that require provable dependability.
|
||||
|
||||
1 tab == 4 spaces!
|
||||
*/
|
||||
|
||||
/******************************************************************************
|
||||
* NOTE 1: This project provides two demo applications. A simple blinky
|
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* style project, and a more comprehensive test and demo application. The
|
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* mainCREATE_SIMPLE_BLINKY_DEMO_ONLY setting in main.c is used to select
|
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* between the two. See the notes on using mainCREATE_SIMPLE_BLINKY_DEMO_ONLY
|
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* in main.c. This file implements the simply blinky style version.
|
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*
|
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* NOTE 2: This file only contains the source code that is specific to the
|
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* basic demo. Generic functions, such FreeRTOS hook functions, and functions
|
||||
* required to configure the hardware are defined in main.c.
|
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******************************************************************************
|
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*
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* main_blinky() creates one queue, and two tasks. It then starts the
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* scheduler.
|
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*
|
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* The Queue Send Task:
|
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* The queue send task is implemented by the prvQueueSendTask() function in
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* this file. prvQueueSendTask() sits in a loop that causes it to repeatedly
|
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* block for 200 milliseconds, before sending the value 100 to the queue that
|
||||
* was created within main_blinky(). Once the value is sent, the task loops
|
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* back around to block for another 200 milliseconds...and so on.
|
||||
*
|
||||
* The Queue Receive Task:
|
||||
* The queue receive task is implemented by the prvQueueReceiveTask() function
|
||||
* in this file. prvQueueReceiveTask() sits in a loop where it repeatedly
|
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* blocks on attempts to read data from the queue that was created within
|
||||
* main_blinky(). When data is received, the task checks the value of the
|
||||
* data, and if the value equals the expected 100, toggles an LED. The 'block
|
||||
* time' parameter passed to the queue receive function specifies that the
|
||||
* task should be held in the Blocked state indefinitely to wait for data to
|
||||
* be available on the queue. The queue receive task will only leave the
|
||||
* Blocked state when the queue send task writes to the queue. As the queue
|
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* send task writes to the queue every 200 milliseconds, the queue receive
|
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* task leaves the Blocked state every 200 milliseconds, and therefore toggles
|
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* the LED every 200 milliseconds.
|
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*/
|
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|
||||
/* Kernel includes. */
|
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#include "FreeRTOS.h"
|
||||
#include "task.h"
|
||||
#include "semphr.h"
|
||||
|
||||
/* Standard demo includes. */
|
||||
#include "partest.h"
|
||||
|
||||
/* Priorities at which the tasks are created. */
|
||||
#define mainQUEUE_RECEIVE_TASK_PRIORITY ( tskIDLE_PRIORITY + 2 )
|
||||
#define mainQUEUE_SEND_TASK_PRIORITY ( tskIDLE_PRIORITY + 1 )
|
||||
|
||||
/* The rate at which data is sent to the queue. The 200ms value is converted
|
||||
to ticks using the portTICK_PERIOD_MS constant. */
|
||||
#define mainQUEUE_SEND_FREQUENCY_MS ( 200 / portTICK_PERIOD_MS )
|
||||
|
||||
/* The number of items the queue can hold. This is 1 as the receive task
|
||||
will remove items as they are added, meaning the send task should always find
|
||||
the queue empty. */
|
||||
#define mainQUEUE_LENGTH ( 1 )
|
||||
|
||||
/* The LED toggled by the Rx task. */
|
||||
#define mainTASK_LED ( 0 )
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/*
|
||||
* The tasks as described in the comments at the top of this file.
|
||||
*/
|
||||
static void prvQueueReceiveTask( void *pvParameters );
|
||||
static void prvQueueSendTask( void *pvParameters );
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/* The queue used by both tasks. */
|
||||
static QueueHandle_t xQueue = NULL;
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void main_blinky( void )
|
||||
{
|
||||
/* Create the queue. */
|
||||
xQueue = xQueueCreate( mainQUEUE_LENGTH, sizeof( uint32_t ) );
|
||||
|
||||
if( xQueue != NULL )
|
||||
{
|
||||
/* Start the two tasks as described in the comments at the top of this
|
||||
file. */
|
||||
xTaskCreate( prvQueueReceiveTask, /* The function that implements the task. */
|
||||
"Rx", /* The text name assigned to the task - for debug only as it is not used by the kernel. */
|
||||
configMINIMAL_STACK_SIZE, /* The size of the stack to allocate to the task. */
|
||||
NULL, /* The parameter passed to the task - not used in this case. */
|
||||
mainQUEUE_RECEIVE_TASK_PRIORITY, /* The priority assigned to the task. */
|
||||
NULL ); /* The task handle is not required, so NULL is passed. */
|
||||
|
||||
xTaskCreate( prvQueueSendTask, "TX", configMINIMAL_STACK_SIZE, NULL, mainQUEUE_SEND_TASK_PRIORITY, NULL );
|
||||
|
||||
/* Start the tasks and timer running. */
|
||||
vTaskStartScheduler();
|
||||
}
|
||||
|
||||
/* If all is well, the scheduler will now be running, and the following
|
||||
line will never be reached. If the following line does execute, then
|
||||
there was either insufficient FreeRTOS heap memory available for the idle
|
||||
and/or timer tasks to be created, or vTaskStartScheduler() was called from
|
||||
User mode. See the memory management section on the FreeRTOS web site for
|
||||
more details on the FreeRTOS heap http://www.freertos.org/a00111.html. The
|
||||
mode from which main() is called is set in the C start up code and must be
|
||||
a privileged mode (not user mode). */
|
||||
for( ;; );
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
static void prvQueueSendTask( void *pvParameters )
|
||||
{
|
||||
TickType_t xNextWakeTime;
|
||||
const unsigned long ulValueToSend = 100UL;
|
||||
|
||||
/* Remove compiler warning about unused parameter. */
|
||||
( void ) pvParameters;
|
||||
|
||||
/* Initialise xNextWakeTime - this only needs to be done once. */
|
||||
xNextWakeTime = xTaskGetTickCount();
|
||||
|
||||
for( ;; )
|
||||
{
|
||||
/* Place this task in the blocked state until it is time to run again. */
|
||||
vTaskDelayUntil( &xNextWakeTime, mainQUEUE_SEND_FREQUENCY_MS );
|
||||
|
||||
/* Send to the queue - causing the queue receive task to unblock and
|
||||
toggle the LED. 0 is used as the block time so the sending operation
|
||||
will not block - it shouldn't need to block as the queue should always
|
||||
be empty at this point in the code. */
|
||||
xQueueSend( xQueue, &ulValueToSend, 0U );
|
||||
}
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
static void prvQueueReceiveTask( void *pvParameters )
|
||||
{
|
||||
unsigned long ulReceivedValue;
|
||||
const unsigned long ulExpectedValue = 100UL;
|
||||
|
||||
/* Remove compiler warning about unused parameter. */
|
||||
( void ) pvParameters;
|
||||
|
||||
for( ;; )
|
||||
{
|
||||
/* Wait until something arrives in the queue - this task will block
|
||||
indefinitely provided INCLUDE_vTaskSuspend is set to 1 in
|
||||
FreeRTOSConfig.h. */
|
||||
xQueueReceive( xQueue, &ulReceivedValue, portMAX_DELAY );
|
||||
|
||||
/* To get here something must have been received from the queue, but
|
||||
is it the expected value? If it is, toggle the LED. */
|
||||
if( ulReceivedValue == ulExpectedValue )
|
||||
{
|
||||
vParTestToggleLED( mainTASK_LED );
|
||||
ulReceivedValue = 0U;
|
||||
}
|
||||
}
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
@ -0,0 +1,481 @@
|
||||
/*
|
||||
FreeRTOS V8.1.2 - Copyright (C) 2014 Real Time Engineers Ltd.
|
||||
All rights reserved
|
||||
|
||||
VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
|
||||
|
||||
***************************************************************************
|
||||
* *
|
||||
* FreeRTOS provides completely free yet professionally developed, *
|
||||
* robust, strictly quality controlled, supported, and cross *
|
||||
* platform software that has become a de facto standard. *
|
||||
* *
|
||||
* Help yourself get started quickly and support the FreeRTOS *
|
||||
* project by purchasing a FreeRTOS tutorial book, reference *
|
||||
* manual, or both from: http://www.FreeRTOS.org/Documentation *
|
||||
* *
|
||||
* Thank you! *
|
||||
* *
|
||||
***************************************************************************
|
||||
|
||||
This file is part of the FreeRTOS distribution.
|
||||
|
||||
FreeRTOS is free software; you can redistribute it and/or modify it under
|
||||
the terms of the GNU General Public License (version 2) as published by the
|
||||
Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception.
|
||||
|
||||
>>! NOTE: The modification to the GPL is included to allow you to !<<
|
||||
>>! distribute a combined work that includes FreeRTOS without being !<<
|
||||
>>! obliged to provide the source code for proprietary components !<<
|
||||
>>! outside of the FreeRTOS kernel. !<<
|
||||
|
||||
FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY
|
||||
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
|
||||
FOR A PARTICULAR PURPOSE. Full license text is available from the following
|
||||
link: http://www.freertos.org/a00114.html
|
||||
|
||||
1 tab == 4 spaces!
|
||||
|
||||
***************************************************************************
|
||||
* *
|
||||
* Having a problem? Start by reading the FAQ "My application does *
|
||||
* not run, what could be wrong?" *
|
||||
* *
|
||||
* http://www.FreeRTOS.org/FAQHelp.html *
|
||||
* *
|
||||
***************************************************************************
|
||||
|
||||
http://www.FreeRTOS.org - Documentation, books, training, latest versions,
|
||||
license and Real Time Engineers Ltd. contact details.
|
||||
|
||||
http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
|
||||
including FreeRTOS+Trace - an indispensable productivity tool, a DOS
|
||||
compatible FAT file system, and our tiny thread aware UDP/IP stack.
|
||||
|
||||
http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High
|
||||
Integrity Systems to sell under the OpenRTOS brand. Low cost OpenRTOS
|
||||
licenses offer ticketed support, indemnification and middleware.
|
||||
|
||||
http://www.SafeRTOS.com - High Integrity Systems also provide a safety
|
||||
engineered and independently SIL3 certified version for use in safety and
|
||||
mission critical applications that require provable dependability.
|
||||
|
||||
1 tab == 4 spaces!
|
||||
*/
|
||||
|
||||
/******************************************************************************
|
||||
* NOTE 1: This project provides two demo applications. A simple blinky
|
||||
* style project, and a more comprehensive test and demo application. The
|
||||
* mainCREATE_SIMPLY_BLINKY_DEMO_ONLY setting in main.c is used to select
|
||||
* between the two. See the notes on using mainCREATE_SIMPLY_BLINKY_DEMO_ONLY
|
||||
* in main.c. This file implements the comprehensive version.
|
||||
*
|
||||
* NOTE 2: This file only contains the source code that is specific to the
|
||||
* full demo. Generic functions, such FreeRTOS hook functions, and functions
|
||||
* required to configure the hardware, are defined in main.c.
|
||||
*
|
||||
******************************************************************************
|
||||
*
|
||||
* main_full() creates all the demo application tasks and software timers, then
|
||||
* starts the scheduler. The web documentation provides more details of the
|
||||
* standard demo application tasks, which provide no particular functionality,
|
||||
* but do provide a good example of how to use the FreeRTOS API.
|
||||
*
|
||||
* In addition to the standard demo tasks, the following tasks and tests are
|
||||
* defined and/or created within this file:
|
||||
*
|
||||
* "Reg test" tasks - These fill both the core and floating point registers with
|
||||
* known values, then check that each register maintains its expected value for
|
||||
* the lifetime of the task. Each task uses a different set of values. The reg
|
||||
* test tasks execute with a very low priority, so get preempted very
|
||||
* frequently. A register containing an unexpected value is indicative of an
|
||||
* error in the context switching mechanism.
|
||||
*
|
||||
* "Check" task - The check task period is initially set to three seconds. The
|
||||
* task checks that all the standard demo tasks, and the register check tasks,
|
||||
* are not only still executing, but are executing without reporting any errors.
|
||||
* If the check task discovers that a task has either stalled, or reported an
|
||||
* error, then it changes its own execution period from the initial three
|
||||
* seconds, to just 200ms. The check task also toggles an LED each time it is
|
||||
* called. This provides a visual indication of the system status: If the LED
|
||||
* toggles every three seconds, then no issues have been discovered. If the LED
|
||||
* toggles every 200ms, then an issue has been discovered with at least one
|
||||
* task.
|
||||
*/
|
||||
|
||||
/* Standard includes. */
|
||||
#include <stdio.h>
|
||||
|
||||
/* Kernel includes. */
|
||||
#include "FreeRTOS.h"
|
||||
#include "task.h"
|
||||
#include "timers.h"
|
||||
#include "semphr.h"
|
||||
|
||||
/* Standard demo application includes. */
|
||||
#include "flop.h"
|
||||
#include "semtest.h"
|
||||
#include "dynamic.h"
|
||||
#include "BlockQ.h"
|
||||
#include "blocktim.h"
|
||||
#include "countsem.h"
|
||||
#include "GenQTest.h"
|
||||
#include "recmutex.h"
|
||||
#include "death.h"
|
||||
#include "partest.h"
|
||||
#include "comtest2.h"
|
||||
#include "serial.h"
|
||||
#include "TimerDemo.h"
|
||||
#include "QueueOverwrite.h"
|
||||
#include "EventGroupsDemo.h"
|
||||
#include "IntSemTest.h"
|
||||
|
||||
/* Priorities for the demo application tasks. */
|
||||
#define mainSEM_TEST_PRIORITY ( tskIDLE_PRIORITY + 1UL )
|
||||
#define mainBLOCK_Q_PRIORITY ( tskIDLE_PRIORITY + 2UL )
|
||||
#define mainCREATOR_TASK_PRIORITY ( tskIDLE_PRIORITY + 3UL )
|
||||
#define mainFLOP_TASK_PRIORITY ( tskIDLE_PRIORITY )
|
||||
#define mainUART_COMMAND_CONSOLE_STACK_SIZE ( configMINIMAL_STACK_SIZE * 3UL )
|
||||
#define mainCOM_TEST_TASK_PRIORITY ( tskIDLE_PRIORITY + 2 )
|
||||
#define mainCHECK_TASK_PRIORITY ( configMAX_PRIORITIES - 1 )
|
||||
#define mainQUEUE_OVERWRITE_PRIORITY ( tskIDLE_PRIORITY )
|
||||
|
||||
/* The priority used by the UART command console task. This is very basic and
|
||||
uses the Altera polling UART driver - so *must* run at the idle priority. */
|
||||
#define mainUART_COMMAND_CONSOLE_TASK_PRIORITY ( tskIDLE_PRIORITY )
|
||||
|
||||
/* The LED used by the check timer. */
|
||||
#define mainCHECK_LED ( 0 )
|
||||
|
||||
/* A block time of zero simply means "don't block". */
|
||||
#define mainDONT_BLOCK ( 0UL )
|
||||
|
||||
/* The period after which the check timer will expire, in ms, provided no errors
|
||||
have been reported by any of the standard demo tasks. ms are converted to the
|
||||
equivalent in ticks using the portTICK_PERIOD_MS constant. */
|
||||
#define mainNO_ERROR_CHECK_TASK_PERIOD ( 3000UL / portTICK_PERIOD_MS )
|
||||
|
||||
/* The period at which the check timer will expire, in ms, if an error has been
|
||||
reported in one of the standard demo tasks. ms are converted to the equivalent
|
||||
in ticks using the portTICK_PERIOD_MS constant. */
|
||||
#define mainERROR_CHECK_TASK_PERIOD ( 200UL / portTICK_PERIOD_MS )
|
||||
|
||||
/* Parameters that are passed into the register check tasks solely for the
|
||||
purpose of ensuring parameters are passed into tasks correctly. */
|
||||
#define mainREG_TEST_TASK_1_PARAMETER ( ( void * ) 0x12345678 )
|
||||
#define mainREG_TEST_TASK_2_PARAMETER ( ( void * ) 0x87654321 )
|
||||
|
||||
/* The base period used by the timer test tasks. */
|
||||
#define mainTIMER_TEST_PERIOD ( 50 )
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
|
||||
/*
|
||||
* The check task, as described at the top of this file.
|
||||
*/
|
||||
static void prvCheckTask( void *pvParameters );
|
||||
|
||||
/*
|
||||
* Register check tasks, and the tasks used to write over and check the contents
|
||||
* of the FPU registers, as described at the top of this file. The nature of
|
||||
* these files necessitates that they are written in an assembly file, but the
|
||||
* entry points are kept in the C file for the convenience of checking the task
|
||||
* parameter.
|
||||
*/
|
||||
static void prvRegTestTaskEntry1( void *pvParameters );
|
||||
extern void vRegTest1Implementation( void );
|
||||
static void prvRegTestTaskEntry2( void *pvParameters );
|
||||
extern void vRegTest2Implementation( void );
|
||||
|
||||
/*
|
||||
* Register commands that can be used with FreeRTOS+CLI. The commands are
|
||||
* defined in CLI-Commands.c and File-Related-CLI-Command.c respectively.
|
||||
*/
|
||||
extern void vRegisterSampleCLICommands( void );
|
||||
|
||||
/*
|
||||
* The task that manages the FreeRTOS+CLI input and output.
|
||||
*/
|
||||
extern void vUARTCommandConsoleStart( uint16_t usStackSize, UBaseType_t uxPriority );
|
||||
|
||||
/*
|
||||
* A high priority task that does nothing other than execute at a pseudo random
|
||||
* time to ensure the other test tasks don't just execute in a repeating
|
||||
* pattern.
|
||||
*/
|
||||
static void prvPseudoRandomiser( void *pvParameters );
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/* The following two variables are used to communicate the status of the
|
||||
register check tasks to the check task. If the variables keep incrementing,
|
||||
then the register check tasks has not discovered any errors. If a variable
|
||||
stops incrementing, then an error has been found. */
|
||||
volatile unsigned long ulRegTest1LoopCounter = 0UL, ulRegTest2LoopCounter = 0UL;
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void main_full( void )
|
||||
{
|
||||
/* Start all the other standard demo/test tasks. They have not particular
|
||||
functionality, but do demonstrate how to use the FreeRTOS API and test the
|
||||
kernel port. */
|
||||
vStartDynamicPriorityTasks();
|
||||
vStartBlockingQueueTasks( mainBLOCK_Q_PRIORITY );
|
||||
vCreateBlockTimeTasks();
|
||||
vStartCountingSemaphoreTasks();
|
||||
vStartGenericQueueTasks( tskIDLE_PRIORITY );
|
||||
vStartRecursiveMutexTasks();
|
||||
vStartSemaphoreTasks( mainSEM_TEST_PRIORITY );
|
||||
vStartMathTasks( mainFLOP_TASK_PRIORITY );
|
||||
vStartTimerDemoTask( mainTIMER_TEST_PERIOD );
|
||||
vStartQueueOverwriteTask( mainQUEUE_OVERWRITE_PRIORITY );
|
||||
vStartEventGroupTasks();
|
||||
vStartInterruptSemaphoreTasks();
|
||||
|
||||
/* Start the tasks that implements the command console on the UART, as
|
||||
described above. */
|
||||
vUARTCommandConsoleStart( mainUART_COMMAND_CONSOLE_STACK_SIZE, mainUART_COMMAND_CONSOLE_TASK_PRIORITY );
|
||||
|
||||
/* Register the standard CLI commands. */
|
||||
vRegisterSampleCLICommands();
|
||||
|
||||
/* Create the register check tasks, as described at the top of this file */
|
||||
xTaskCreate( prvRegTestTaskEntry1, "Reg1", configMINIMAL_STACK_SIZE, mainREG_TEST_TASK_1_PARAMETER, tskIDLE_PRIORITY, NULL );
|
||||
xTaskCreate( prvRegTestTaskEntry2, "Reg2", configMINIMAL_STACK_SIZE, mainREG_TEST_TASK_2_PARAMETER, tskIDLE_PRIORITY, NULL );
|
||||
|
||||
/* Create the task that just adds a little random behaviour. */
|
||||
xTaskCreate( prvPseudoRandomiser, "Rnd", configMINIMAL_STACK_SIZE, NULL, configMAX_PRIORITIES - 1, NULL );
|
||||
|
||||
/* Create the task that performs the 'check' functionality, as described at
|
||||
the top of this file. */
|
||||
xTaskCreate( prvCheckTask, "Check", configMINIMAL_STACK_SIZE, NULL, mainCHECK_TASK_PRIORITY, NULL );
|
||||
|
||||
/* The set of tasks created by the following function call have to be
|
||||
created last as they keep account of the number of tasks they expect to see
|
||||
running. */
|
||||
vCreateSuicidalTasks( mainCREATOR_TASK_PRIORITY );
|
||||
|
||||
/* Start the scheduler. */
|
||||
vTaskStartScheduler();
|
||||
|
||||
/* If all is well, the scheduler will now be running, and the following
|
||||
line will never be reached. If the following line does execute, then
|
||||
there was either insufficient FreeRTOS heap memory available for the idle
|
||||
and/or timer tasks to be created, or vTaskStartScheduler() was called from
|
||||
User mode. See the memory management section on the FreeRTOS web site for
|
||||
more details on the FreeRTOS heap http://www.freertos.org/a00111.html. The
|
||||
mode from which main() is called is set in the C start up code and must be
|
||||
a privileged mode (not user mode). */
|
||||
for( ;; );
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
static void prvCheckTask( void *pvParameters )
|
||||
{
|
||||
TickType_t xDelayPeriod = mainNO_ERROR_CHECK_TASK_PERIOD;
|
||||
TickType_t xLastExecutionTime;
|
||||
static unsigned long ulLastRegTest1Value = 0, ulLastRegTest2Value = 0;
|
||||
unsigned long ulErrorFound = pdFALSE;
|
||||
|
||||
/* Just to stop compiler warnings. */
|
||||
( void ) pvParameters;
|
||||
|
||||
/* Initialise xLastExecutionTime so the first call to vTaskDelayUntil()
|
||||
works correctly. */
|
||||
xLastExecutionTime = xTaskGetTickCount();
|
||||
|
||||
/* Cycle for ever, delaying then checking all the other tasks are still
|
||||
operating without error. The onboard LED is toggled on each iteration.
|
||||
If an error is detected then the delay period is decreased from
|
||||
mainNO_ERROR_CHECK_TASK_PERIOD to mainERROR_CHECK_TASK_PERIOD. This has the
|
||||
effect of increasing the rate at which the onboard LED toggles, and in so
|
||||
doing gives visual feedback of the system status. */
|
||||
for( ;; )
|
||||
{
|
||||
/* Delay until it is time to execute again. */
|
||||
vTaskDelayUntil( &xLastExecutionTime, xDelayPeriod );
|
||||
|
||||
/* Check all the demo tasks (other than the flash tasks) to ensure
|
||||
that they are all still running, and that none have detected an error. */
|
||||
if( xAreMathsTaskStillRunning() != pdTRUE )
|
||||
{
|
||||
ulErrorFound = 1 << 1;
|
||||
}
|
||||
|
||||
if( xAreDynamicPriorityTasksStillRunning() != pdTRUE )
|
||||
{
|
||||
ulErrorFound = 1 << 2;
|
||||
}
|
||||
|
||||
if( xAreBlockingQueuesStillRunning() != pdTRUE )
|
||||
{
|
||||
ulErrorFound = 1 << 3;
|
||||
}
|
||||
|
||||
if ( xAreBlockTimeTestTasksStillRunning() != pdTRUE )
|
||||
{
|
||||
ulErrorFound = 1 << 4;
|
||||
}
|
||||
|
||||
if ( xAreGenericQueueTasksStillRunning() != pdTRUE )
|
||||
{
|
||||
ulErrorFound = 1 << 5;
|
||||
}
|
||||
|
||||
if ( xAreRecursiveMutexTasksStillRunning() != pdTRUE )
|
||||
{
|
||||
ulErrorFound = 1 << 6;
|
||||
}
|
||||
|
||||
if( xIsCreateTaskStillRunning() != pdTRUE )
|
||||
{
|
||||
ulErrorFound = 1 << 7;
|
||||
}
|
||||
|
||||
if( xAreSemaphoreTasksStillRunning() != pdTRUE )
|
||||
{
|
||||
ulErrorFound = 1 << 8;
|
||||
}
|
||||
|
||||
if( xAreTimerDemoTasksStillRunning( ( TickType_t ) mainNO_ERROR_CHECK_TASK_PERIOD ) != pdPASS )
|
||||
{
|
||||
ulErrorFound = 1 << 9;
|
||||
}
|
||||
|
||||
if( xAreCountingSemaphoreTasksStillRunning() != pdTRUE )
|
||||
{
|
||||
ulErrorFound = 1 << 10;
|
||||
}
|
||||
|
||||
if( xIsQueueOverwriteTaskStillRunning() != pdPASS )
|
||||
{
|
||||
ulErrorFound = 1 << 11;
|
||||
}
|
||||
|
||||
if( xAreEventGroupTasksStillRunning() != pdPASS )
|
||||
{
|
||||
ulErrorFound = 1 << 12;
|
||||
}
|
||||
|
||||
if( xAreInterruptSemaphoreTasksStillRunning() != pdPASS )
|
||||
{
|
||||
ulErrorFound = 1 << 13;
|
||||
}
|
||||
|
||||
/* Check that the register test 1 task is still running. */
|
||||
if( ulLastRegTest1Value == ulRegTest1LoopCounter )
|
||||
{
|
||||
ulErrorFound = 1 << 14;
|
||||
}
|
||||
ulLastRegTest1Value = ulRegTest1LoopCounter;
|
||||
|
||||
/* Check that the register test 2 task is still running. */
|
||||
if( ulLastRegTest2Value == ulRegTest2LoopCounter )
|
||||
{
|
||||
ulErrorFound = 1 << 15;
|
||||
}
|
||||
ulLastRegTest2Value = ulRegTest2LoopCounter;
|
||||
|
||||
/* Toggle the check LED to give an indication of the system status. If
|
||||
the LED toggles every mainNO_ERROR_CHECK_TASK_PERIOD milliseconds then
|
||||
everything is ok. A faster toggle indicates an error. */
|
||||
vParTestToggleLED( mainCHECK_LED );
|
||||
|
||||
if( ulErrorFound != pdFALSE )
|
||||
{
|
||||
/* An error has been detected in one of the tasks - flash the LED
|
||||
at a higher frequency to give visible feedback that something has
|
||||
gone wrong (it might just be that the loop back connector required
|
||||
by the comtest tasks has not been fitted). */
|
||||
xDelayPeriod = mainERROR_CHECK_TASK_PERIOD;
|
||||
}
|
||||
}
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
static void prvRegTestTaskEntry1( void *pvParameters )
|
||||
{
|
||||
/* Although the regtest task is written in assembler, its entry point is
|
||||
written in C for convenience of checking the task parameter is being passed
|
||||
in correctly. */
|
||||
if( pvParameters == mainREG_TEST_TASK_1_PARAMETER )
|
||||
{
|
||||
/* The reg test task also tests the floating point registers. Tasks
|
||||
that use the floating point unit must call vPortTaskUsesFPU() before
|
||||
any floating point instructions are executed. */
|
||||
vPortTaskUsesFPU();
|
||||
|
||||
/* Start the part of the test that is written in assembler. */
|
||||
vRegTest1Implementation();
|
||||
}
|
||||
|
||||
/* The following line will only execute if the task parameter is found to
|
||||
be incorrect. The check timer will detect that the regtest loop counter is
|
||||
not being incremented and flag an error. */
|
||||
vTaskDelete( NULL );
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
static void prvRegTestTaskEntry2( void *pvParameters )
|
||||
{
|
||||
/* Although the regtest task is written in assembler, its entry point is
|
||||
written in C for convenience of checking the task parameter is being passed
|
||||
in correctly. */
|
||||
if( pvParameters == mainREG_TEST_TASK_2_PARAMETER )
|
||||
{
|
||||
/* The reg test task also tests the floating point registers. Tasks
|
||||
that use the floating point unit must call vPortTaskUsesFPU() before
|
||||
any floating point instructions are executed. */
|
||||
vPortTaskUsesFPU();
|
||||
|
||||
/* Start the part of the test that is written in assembler. */
|
||||
vRegTest2Implementation();
|
||||
}
|
||||
|
||||
/* The following line will only execute if the task parameter is found to
|
||||
be incorrect. The check timer will detect that the regtest loop counter is
|
||||
not being incremented and flag an error. */
|
||||
vTaskDelete( NULL );
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
static void prvPseudoRandomiser( void *pvParameters )
|
||||
{
|
||||
const uint32_t ulMultiplier = 0x015a4e35UL, ulIncrement = 1UL, ulMinDelay = ( 35 / portTICK_PERIOD_MS );
|
||||
volatile uint32_t ulNextRand = ( uint32_t ) &pvParameters, ulValue;
|
||||
|
||||
|
||||
/* This task does nothing other than ensure there is a little bit of
|
||||
disruption in the scheduling pattern of the other tasks. Normally this is
|
||||
done by generating interrupts at pseudo random times. */
|
||||
for( ;; )
|
||||
{
|
||||
ulNextRand = ( ulMultiplier * ulNextRand ) + ulIncrement;
|
||||
ulValue = ( ulNextRand >> 16UL ) & 0xffUL;
|
||||
|
||||
if( ulValue < ulMinDelay )
|
||||
{
|
||||
ulValue = ulMinDelay;
|
||||
}
|
||||
|
||||
vTaskDelay( ulValue );
|
||||
|
||||
while( ulValue > 0 )
|
||||
{
|
||||
__asm volatile( "NOP" );
|
||||
__asm volatile( "NOP" );
|
||||
__asm volatile( "NOP" );
|
||||
__asm volatile( "NOP" );
|
||||
|
||||
ulValue--;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
@ -0,0 +1,658 @@
|
||||
/*
|
||||
FreeRTOS V8.1.2 - Copyright (C) 2014 Real Time Engineers Ltd.
|
||||
|
||||
FEATURES AND PORTS ARE ADDED TO FREERTOS ALL THE TIME. PLEASE VISIT
|
||||
http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
|
||||
|
||||
***************************************************************************
|
||||
* *
|
||||
* FreeRTOS tutorial books are available in pdf and paperback. *
|
||||
* Complete, revised, and edited pdf reference manuals are also *
|
||||
* available. *
|
||||
* *
|
||||
* Purchasing FreeRTOS documentation will not only help you, by *
|
||||
* ensuring you get running as quickly as possible and with an *
|
||||
* in-depth knowledge of how to use FreeRTOS, it will also help *
|
||||
* the FreeRTOS project to continue with its mission of providing *
|
||||
* professional grade, cross platform, de facto standard solutions *
|
||||
* for microcontrollers - completely free of charge! *
|
||||
* *
|
||||
* >>> See http://www.FreeRTOS.org/Documentation for details. <<< *
|
||||
* *
|
||||
* Thank you for using FreeRTOS, and thank you for your support! *
|
||||
* *
|
||||
***************************************************************************
|
||||
|
||||
|
||||
This file is part of the FreeRTOS distribution.
|
||||
|
||||
FreeRTOS is free software; you can redistribute it and/or modify it under
|
||||
the terms of the GNU General Public License (version 2) as published by the
|
||||
Free Software Foundation AND MODIFIED BY the FreeRTOS exception.
|
||||
|
||||
>>>>>>NOTE<<<<<< The modification to the GPL is included to allow you to
|
||||
distribute a combined work that includes FreeRTOS without being obliged to
|
||||
provide the source code for proprietary components outside of the FreeRTOS
|
||||
kernel.
|
||||
|
||||
FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY
|
||||
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
|
||||
FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
|
||||
details. You should have received a copy of the GNU General Public License
|
||||
and the FreeRTOS license exception along with FreeRTOS; if not itcan be
|
||||
viewed here: http://www.freertos.org/a00114.html and also obtained by
|
||||
writing to Real Time Engineers Ltd., contact details for whom are available
|
||||
on the FreeRTOS WEB site.
|
||||
|
||||
1 tab == 4 spaces!
|
||||
|
||||
***************************************************************************
|
||||
* *
|
||||
* Having a problem? Start by reading the FAQ "My application does *
|
||||
* not run, what could be wrong?" *
|
||||
* *
|
||||
* http://www.FreeRTOS.org/FAQHelp.html *
|
||||
* *
|
||||
***************************************************************************
|
||||
|
||||
|
||||
http://www.FreeRTOS.org - Documentation, books, training, latest versions,
|
||||
license and Real Time Engineers Ltd. contact details.
|
||||
|
||||
http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
|
||||
including FreeRTOS+Trace - an indispensable productivity tool, and our new
|
||||
fully thread aware and reentrant UDP/IP stack.
|
||||
|
||||
http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High
|
||||
Integrity Systems, who sell the code with commercial support,
|
||||
indemnification and middleware, under the OpenRTOS brand.
|
||||
|
||||
http://www.SafeRTOS.com - High Integrity Systems also provide a safety
|
||||
engineered and independently SIL3 certified version for use in safety and
|
||||
mission critical applications that require provable dependability.
|
||||
*/
|
||||
|
||||
.global vRegTest1Implementation
|
||||
.global vRegTest2Implementation
|
||||
.extern ulRegTest1LoopCounter
|
||||
.extern ulRegTest2LoopCounter
|
||||
|
||||
.text
|
||||
.arm
|
||||
|
||||
/* This function is explained in the comments at the top of main-full.c. */
|
||||
.type vRegTest1Implementation, %function
|
||||
vRegTest1Implementation:
|
||||
|
||||
/* Fill each general purpose register with a known value. */
|
||||
mov r0, #0xFF
|
||||
mov r1, #0x11
|
||||
mov r2, #0x22
|
||||
mov r3, #0x33
|
||||
mov r4, #0x44
|
||||
mov r5, #0x55
|
||||
mov r6, #0x66
|
||||
mov r7, #0x77
|
||||
mov r8, #0x88
|
||||
mov r9, #0x99
|
||||
mov r10, #0xAA
|
||||
mov r11, #0xBB
|
||||
mov r12, #0xCC
|
||||
mov r14, #0xEE
|
||||
|
||||
/* Fill each FPU register with a known value. */
|
||||
vmov d0, r0, r1
|
||||
vmov d1, r2, r3
|
||||
vmov d2, r4, r5
|
||||
vmov d3, r6, r7
|
||||
vmov d4, r8, r9
|
||||
vmov d5, r10, r11
|
||||
vmov d6, r0, r1
|
||||
vmov d7, r2, r3
|
||||
vmov d8, r4, r5
|
||||
vmov d9, r6, r7
|
||||
vmov d10, r8, r9
|
||||
vmov d11, r10, r11
|
||||
vmov d12, r0, r1
|
||||
vmov d13, r2, r3
|
||||
vmov d14, r4, r5
|
||||
vmov d15, r6, r7
|
||||
|
||||
vmov d16, r0, r1
|
||||
vmov d17, r2, r3
|
||||
vmov d18, r4, r5
|
||||
vmov d19, r6, r7
|
||||
vmov d20, r8, r9
|
||||
vmov d21, r10, r11
|
||||
vmov d22, r0, r1
|
||||
vmov d23, r2, r3
|
||||
vmov d24, r4, r5
|
||||
vmov d25, r6, r7
|
||||
vmov d26, r8, r9
|
||||
vmov d27, r10, r11
|
||||
vmov d28, r0, r1
|
||||
vmov d29, r2, r3
|
||||
vmov d30, r4, r5
|
||||
vmov d31, r6, r7
|
||||
|
||||
/* Loop, checking each itteration that each register still contains the
|
||||
expected value. */
|
||||
reg1_loop:
|
||||
/* Yield to increase test coverage */
|
||||
svc 0
|
||||
|
||||
/* Check all the VFP registers still contain the values set above.
|
||||
First save registers that are clobbered by the test. */
|
||||
push { r0-r1 }
|
||||
|
||||
vmov r0, r1, d0
|
||||
cmp r0, #0xFF
|
||||
bne reg1_error_loopf
|
||||
cmp r1, #0x11
|
||||
bne reg1_error_loopf
|
||||
vmov r0, r1, d1
|
||||
cmp r0, #0x22
|
||||
bne reg1_error_loopf
|
||||
cmp r1, #0x33
|
||||
bne reg1_error_loopf
|
||||
vmov r0, r1, d2
|
||||
cmp r0, #0x44
|
||||
bne reg1_error_loopf
|
||||
cmp r1, #0x55
|
||||
bne reg1_error_loopf
|
||||
vmov r0, r1, d3
|
||||
cmp r0, #0x66
|
||||
bne reg1_error_loopf
|
||||
cmp r1, #0x77
|
||||
bne reg1_error_loopf
|
||||
vmov r0, r1, d4
|
||||
cmp r0, #0x88
|
||||
bne reg1_error_loopf
|
||||
cmp r1, #0x99
|
||||
bne reg1_error_loopf
|
||||
vmov r0, r1, d5
|
||||
cmp r0, #0xAA
|
||||
bne reg1_error_loopf
|
||||
cmp r1, #0xBB
|
||||
bne reg1_error_loopf
|
||||
vmov r0, r1, d6
|
||||
cmp r0, #0xFF
|
||||
bne reg1_error_loopf
|
||||
cmp r1, #0x11
|
||||
bne reg1_error_loopf
|
||||
vmov r0, r1, d7
|
||||
cmp r0, #0x22
|
||||
bne reg1_error_loopf
|
||||
cmp r1, #0x33
|
||||
bne reg1_error_loopf
|
||||
vmov r0, r1, d8
|
||||
cmp r0, #0x44
|
||||
bne reg1_error_loopf
|
||||
cmp r1, #0x55
|
||||
bne reg1_error_loopf
|
||||
vmov r0, r1, d9
|
||||
cmp r0, #0x66
|
||||
bne reg1_error_loopf
|
||||
cmp r1, #0x77
|
||||
bne reg1_error_loopf
|
||||
vmov r0, r1, d10
|
||||
cmp r0, #0x88
|
||||
bne reg1_error_loopf
|
||||
cmp r1, #0x99
|
||||
bne reg1_error_loopf
|
||||
vmov r0, r1, d11
|
||||
cmp r0, #0xAA
|
||||
bne reg1_error_loopf
|
||||
cmp r1, #0xBB
|
||||
bne reg1_error_loopf
|
||||
vmov r0, r1, d12
|
||||
cmp r0, #0xFF
|
||||
bne reg1_error_loopf
|
||||
cmp r1, #0x11
|
||||
bne reg1_error_loopf
|
||||
vmov r0, r1, d13
|
||||
cmp r0, #0x22
|
||||
bne reg1_error_loopf
|
||||
cmp r1, #0x33
|
||||
bne reg1_error_loopf
|
||||
vmov r0, r1, d14
|
||||
cmp r0, #0x44
|
||||
bne reg1_error_loopf
|
||||
cmp r1, #0x55
|
||||
bne reg1_error_loopf
|
||||
vmov r0, r1, d15
|
||||
cmp r0, #0x66
|
||||
bne reg1_error_loopf
|
||||
cmp r1, #0x77
|
||||
bne reg1_error_loopf
|
||||
|
||||
vmov r0, r1, d16
|
||||
cmp r0, #0xFF
|
||||
bne reg1_error_loopf
|
||||
cmp r1, #0x11
|
||||
bne reg1_error_loopf
|
||||
vmov r0, r1, d17
|
||||
cmp r0, #0x22
|
||||
bne reg1_error_loopf
|
||||
cmp r1, #0x33
|
||||
bne reg1_error_loopf
|
||||
vmov r0, r1, d18
|
||||
cmp r0, #0x44
|
||||
bne reg1_error_loopf
|
||||
cmp r1, #0x55
|
||||
bne reg1_error_loopf
|
||||
vmov r0, r1, d19
|
||||
cmp r0, #0x66
|
||||
bne reg1_error_loopf
|
||||
cmp r1, #0x77
|
||||
bne reg1_error_loopf
|
||||
vmov r0, r1, d20
|
||||
cmp r0, #0x88
|
||||
bne reg1_error_loopf
|
||||
cmp r1, #0x99
|
||||
bne reg1_error_loopf
|
||||
vmov r0, r1, d21
|
||||
cmp r0, #0xAA
|
||||
bne reg1_error_loopf
|
||||
cmp r1, #0xBB
|
||||
bne reg1_error_loopf
|
||||
vmov r0, r1, d22
|
||||
cmp r0, #0xFF
|
||||
bne reg1_error_loopf
|
||||
cmp r1, #0x11
|
||||
bne reg1_error_loopf
|
||||
vmov r0, r1, d23
|
||||
cmp r0, #0x22
|
||||
bne reg1_error_loopf
|
||||
cmp r1, #0x33
|
||||
bne reg1_error_loopf
|
||||
vmov r0, r1, d24
|
||||
cmp r0, #0x44
|
||||
bne reg1_error_loopf
|
||||
cmp r1, #0x55
|
||||
bne reg1_error_loopf
|
||||
vmov r0, r1, d25
|
||||
cmp r0, #0x66
|
||||
bne reg1_error_loopf
|
||||
cmp r1, #0x77
|
||||
bne reg1_error_loopf
|
||||
vmov r0, r1, d26
|
||||
cmp r0, #0x88
|
||||
bne reg1_error_loopf
|
||||
cmp r1, #0x99
|
||||
bne reg1_error_loopf
|
||||
vmov r0, r1, d27
|
||||
cmp r0, #0xAA
|
||||
bne reg1_error_loopf
|
||||
cmp r1, #0xBB
|
||||
bne reg1_error_loopf
|
||||
vmov r0, r1, d28
|
||||
cmp r0, #0xFF
|
||||
bne reg1_error_loopf
|
||||
cmp r1, #0x11
|
||||
bne reg1_error_loopf
|
||||
vmov r0, r1, d29
|
||||
cmp r0, #0x22
|
||||
bne reg1_error_loopf
|
||||
cmp r1, #0x33
|
||||
bne reg1_error_loopf
|
||||
vmov r0, r1, d30
|
||||
cmp r0, #0x44
|
||||
bne reg1_error_loopf
|
||||
cmp r1, #0x55
|
||||
bne reg1_error_loopf
|
||||
vmov r0, r1, d31
|
||||
cmp r0, #0x66
|
||||
bne reg1_error_loopf
|
||||
cmp r1, #0x77
|
||||
bne reg1_error_loopf
|
||||
|
||||
/* Restore the registers that were clobbered by the test. */
|
||||
pop {r0-r1}
|
||||
|
||||
/* VFP register test passed. Jump to the core register test. */
|
||||
b reg1_loopf_pass
|
||||
|
||||
reg1_error_loopf:
|
||||
/* If this line is hit then a VFP register value was found to be
|
||||
incorrect. */
|
||||
b reg1_error_loopf
|
||||
|
||||
reg1_loopf_pass:
|
||||
|
||||
/* Test each general purpose register to check that it still contains the
|
||||
expected known value, jumping to reg1_error_loop if any register contains
|
||||
an unexpected value. */
|
||||
cmp r0, #0xFF
|
||||
bne reg1_error_loop
|
||||
cmp r1, #0x11
|
||||
bne reg1_error_loop
|
||||
cmp r2, #0x22
|
||||
bne reg1_error_loop
|
||||
cmp r3, #0x33
|
||||
bne reg1_error_loop
|
||||
cmp r4, #0x44
|
||||
bne reg1_error_loop
|
||||
cmp r5, #0x55
|
||||
bne reg1_error_loop
|
||||
cmp r6, #0x66
|
||||
bne reg1_error_loop
|
||||
cmp r7, #0x77
|
||||
bne reg1_error_loop
|
||||
cmp r8, #0x88
|
||||
bne reg1_error_loop
|
||||
cmp r9, #0x99
|
||||
bne reg1_error_loop
|
||||
cmp r10, #0xAA
|
||||
bne reg1_error_loop
|
||||
cmp r11, #0xBB
|
||||
bne reg1_error_loop
|
||||
cmp r12, #0xCC
|
||||
bne reg1_error_loop
|
||||
cmp r14, #0xEE
|
||||
bne reg1_error_loop
|
||||
|
||||
/* Everything passed, increment the loop counter. */
|
||||
push { r0-r1 }
|
||||
ldr r0, =ulRegTest1LoopCounter
|
||||
ldr r1, [r0]
|
||||
adds r1, r1, #1
|
||||
str r1, [r0]
|
||||
pop { r0-r1 }
|
||||
|
||||
/* Start again. */
|
||||
b reg1_loop
|
||||
|
||||
reg1_error_loop:
|
||||
/* If this line is hit then there was an error in a core register value.
|
||||
The loop ensures the loop counter stops incrementing. */
|
||||
b reg1_error_loop
|
||||
nop
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
.type vRegTest2Implementation, %function
|
||||
vRegTest2Implementation:
|
||||
|
||||
/* Put a known value in each register. */
|
||||
mov r0, #0xFF000000
|
||||
mov r1, #0x11000000
|
||||
mov r2, #0x22000000
|
||||
mov r3, #0x33000000
|
||||
mov r4, #0x44000000
|
||||
mov r5, #0x55000000
|
||||
mov r6, #0x66000000
|
||||
mov r7, #0x77000000
|
||||
mov r8, #0x88000000
|
||||
mov r9, #0x99000000
|
||||
mov r10, #0xAA000000
|
||||
mov r11, #0xBB000000
|
||||
mov r12, #0xCC000000
|
||||
mov r14, #0xEE000000
|
||||
|
||||
/* Likewise the floating point registers */
|
||||
vmov d0, r0, r1
|
||||
vmov d1, r2, r3
|
||||
vmov d2, r4, r5
|
||||
vmov d3, r6, r7
|
||||
vmov d4, r8, r9
|
||||
vmov d5, r10, r11
|
||||
vmov d6, r0, r1
|
||||
vmov d7, r2, r3
|
||||
vmov d8, r4, r5
|
||||
vmov d9, r6, r7
|
||||
vmov d10, r8, r9
|
||||
vmov d11, r10, r11
|
||||
vmov d12, r0, r1
|
||||
vmov d13, r2, r3
|
||||
vmov d14, r4, r5
|
||||
vmov d15, r6, r7
|
||||
|
||||
vmov d16, r0, r1
|
||||
vmov d17, r2, r3
|
||||
vmov d18, r4, r5
|
||||
vmov d19, r6, r7
|
||||
vmov d20, r8, r9
|
||||
vmov d21, r10, r11
|
||||
vmov d22, r0, r1
|
||||
vmov d23, r2, r3
|
||||
vmov d24, r4, r5
|
||||
vmov d25, r6, r7
|
||||
vmov d26, r8, r9
|
||||
vmov d27, r10, r11
|
||||
vmov d28, r0, r1
|
||||
vmov d29, r2, r3
|
||||
vmov d30, r4, r5
|
||||
vmov d31, r6, r7
|
||||
|
||||
/* Loop, checking each itteration that each register still contains the
|
||||
expected value. */
|
||||
reg2_loop:
|
||||
/* Check all the VFP registers still contain the values set above.
|
||||
First save registers that are clobbered by the test. */
|
||||
push { r0-r1 }
|
||||
|
||||
vmov r0, r1, d0
|
||||
cmp r0, #0xFF000000
|
||||
bne reg2_error_loopf
|
||||
cmp r1, #0x11000000
|
||||
bne reg2_error_loopf
|
||||
vmov r0, r1, d1
|
||||
cmp r0, #0x22000000
|
||||
bne reg2_error_loopf
|
||||
cmp r1, #0x33000000
|
||||
bne reg2_error_loopf
|
||||
vmov r0, r1, d2
|
||||
cmp r0, #0x44000000
|
||||
bne reg2_error_loopf
|
||||
cmp r1, #0x55000000
|
||||
bne reg2_error_loopf
|
||||
vmov r0, r1, d3
|
||||
cmp r0, #0x66000000
|
||||
bne reg2_error_loopf
|
||||
cmp r1, #0x77000000
|
||||
bne reg2_error_loopf
|
||||
vmov r0, r1, d4
|
||||
cmp r0, #0x88000000
|
||||
bne reg2_error_loopf
|
||||
cmp r1, #0x99000000
|
||||
bne reg2_error_loopf
|
||||
vmov r0, r1, d5
|
||||
cmp r0, #0xAA000000
|
||||
bne reg2_error_loopf
|
||||
cmp r1, #0xBB000000
|
||||
bne reg2_error_loopf
|
||||
vmov r0, r1, d6
|
||||
cmp r0, #0xFF000000
|
||||
bne reg2_error_loopf
|
||||
cmp r1, #0x11000000
|
||||
bne reg2_error_loopf
|
||||
vmov r0, r1, d7
|
||||
cmp r0, #0x22000000
|
||||
bne reg2_error_loopf
|
||||
cmp r1, #0x33000000
|
||||
bne reg2_error_loopf
|
||||
vmov r0, r1, d8
|
||||
cmp r0, #0x44000000
|
||||
bne reg2_error_loopf
|
||||
cmp r1, #0x55000000
|
||||
bne reg2_error_loopf
|
||||
vmov r0, r1, d9
|
||||
cmp r0, #0x66000000
|
||||
bne reg2_error_loopf
|
||||
cmp r1, #0x77000000
|
||||
bne reg2_error_loopf
|
||||
vmov r0, r1, d10
|
||||
cmp r0, #0x88000000
|
||||
bne reg2_error_loopf
|
||||
cmp r1, #0x99000000
|
||||
bne reg2_error_loopf
|
||||
vmov r0, r1, d11
|
||||
cmp r0, #0xAA000000
|
||||
bne reg2_error_loopf
|
||||
cmp r1, #0xBB000000
|
||||
bne reg2_error_loopf
|
||||
vmov r0, r1, d12
|
||||
cmp r0, #0xFF000000
|
||||
bne reg2_error_loopf
|
||||
cmp r1, #0x11000000
|
||||
bne reg2_error_loopf
|
||||
vmov r0, r1, d13
|
||||
cmp r0, #0x22000000
|
||||
bne reg2_error_loopf
|
||||
cmp r1, #0x33000000
|
||||
bne reg2_error_loopf
|
||||
vmov r0, r1, d14
|
||||
cmp r0, #0x44000000
|
||||
bne reg2_error_loopf
|
||||
cmp r1, #0x55000000
|
||||
bne reg2_error_loopf
|
||||
vmov r0, r1, d15
|
||||
cmp r0, #0x66000000
|
||||
bne reg2_error_loopf
|
||||
cmp r1, #0x77000000
|
||||
bne reg2_error_loopf
|
||||
|
||||
vmov r0, r1, d16
|
||||
cmp r0, #0xFF000000
|
||||
bne reg2_error_loopf
|
||||
cmp r1, #0x11000000
|
||||
bne reg2_error_loopf
|
||||
vmov r0, r1, d17
|
||||
cmp r0, #0x22000000
|
||||
bne reg2_error_loopf
|
||||
cmp r1, #0x33000000
|
||||
bne reg2_error_loopf
|
||||
vmov r0, r1, d18
|
||||
cmp r0, #0x44000000
|
||||
bne reg2_error_loopf
|
||||
cmp r1, #0x55000000
|
||||
bne reg2_error_loopf
|
||||
vmov r0, r1, d19
|
||||
cmp r0, #0x66000000
|
||||
bne reg2_error_loopf
|
||||
cmp r1, #0x77000000
|
||||
bne reg2_error_loopf
|
||||
vmov r0, r1, d20
|
||||
cmp r0, #0x88000000
|
||||
bne reg2_error_loopf
|
||||
cmp r1, #0x99000000
|
||||
bne reg2_error_loopf
|
||||
vmov r0, r1, d21
|
||||
cmp r0, #0xAA000000
|
||||
bne reg2_error_loopf
|
||||
cmp r1, #0xBB000000
|
||||
bne reg2_error_loopf
|
||||
vmov r0, r1, d22
|
||||
cmp r0, #0xFF000000
|
||||
bne reg2_error_loopf
|
||||
cmp r1, #0x11000000
|
||||
bne reg2_error_loopf
|
||||
vmov r0, r1, d23
|
||||
cmp r0, #0x22000000
|
||||
bne reg2_error_loopf
|
||||
cmp r1, #0x33000000
|
||||
bne reg2_error_loopf
|
||||
vmov r0, r1, d24
|
||||
cmp r0, #0x44000000
|
||||
bne reg2_error_loopf
|
||||
cmp r1, #0x55000000
|
||||
bne reg2_error_loopf
|
||||
vmov r0, r1, d25
|
||||
cmp r0, #0x66000000
|
||||
bne reg2_error_loopf
|
||||
cmp r1, #0x77000000
|
||||
bne reg2_error_loopf
|
||||
vmov r0, r1, d26
|
||||
cmp r0, #0x88000000
|
||||
bne reg2_error_loopf
|
||||
cmp r1, #0x99000000
|
||||
bne reg2_error_loopf
|
||||
vmov r0, r1, d27
|
||||
cmp r0, #0xAA000000
|
||||
bne reg2_error_loopf
|
||||
cmp r1, #0xBB000000
|
||||
bne reg2_error_loopf
|
||||
vmov r0, r1, d28
|
||||
cmp r0, #0xFF000000
|
||||
bne reg2_error_loopf
|
||||
cmp r1, #0x11000000
|
||||
bne reg2_error_loopf
|
||||
vmov r0, r1, d29
|
||||
cmp r0, #0x22000000
|
||||
bne reg2_error_loopf
|
||||
cmp r1, #0x33000000
|
||||
bne reg2_error_loopf
|
||||
vmov r0, r1, d30
|
||||
cmp r0, #0x44000000
|
||||
bne reg2_error_loopf
|
||||
cmp r1, #0x55000000
|
||||
bne reg2_error_loopf
|
||||
vmov r0, r1, d31
|
||||
cmp r0, #0x66000000
|
||||
bne reg2_error_loopf
|
||||
cmp r1, #0x77000000
|
||||
bne reg2_error_loopf
|
||||
|
||||
/* Restore the registers that were clobbered by the test. */
|
||||
pop {r0-r1}
|
||||
|
||||
/* VFP register test passed. Jump to the core register test. */
|
||||
b reg2_loopf_pass
|
||||
|
||||
reg2_error_loopf:
|
||||
/* If this line is hit then a VFP register value was found to be
|
||||
incorrect. */
|
||||
b reg2_error_loopf
|
||||
|
||||
reg2_loopf_pass:
|
||||
|
||||
cmp r0, #0xFF000000
|
||||
bne reg2_error_loop
|
||||
cmp r1, #0x11000000
|
||||
bne reg2_error_loop
|
||||
cmp r2, #0x22000000
|
||||
bne reg2_error_loop
|
||||
cmp r3, #0x33000000
|
||||
bne reg2_error_loop
|
||||
cmp r4, #0x44000000
|
||||
bne reg2_error_loop
|
||||
cmp r5, #0x55000000
|
||||
bne reg2_error_loop
|
||||
cmp r6, #0x66000000
|
||||
bne reg2_error_loop
|
||||
cmp r7, #0x77000000
|
||||
bne reg2_error_loop
|
||||
cmp r8, #0x88000000
|
||||
bne reg2_error_loop
|
||||
cmp r9, #0x99000000
|
||||
bne reg2_error_loop
|
||||
cmp r10, #0xAA000000
|
||||
bne reg2_error_loop
|
||||
cmp r11, #0xBB000000
|
||||
bne reg2_error_loop
|
||||
cmp r12, #0xCC000000
|
||||
bne reg2_error_loop
|
||||
cmp r14, #0xEE000000
|
||||
bne reg2_error_loop
|
||||
|
||||
/* Everything passed, increment the loop counter. */
|
||||
push { r0-r1 }
|
||||
ldr r0, =ulRegTest2LoopCounter
|
||||
ldr r1, [r0]
|
||||
adds r1, r1, #1
|
||||
str r1, [r0]
|
||||
pop { r0-r1 }
|
||||
|
||||
/* Start again. */
|
||||
b reg2_loop
|
||||
|
||||
reg2_error_loop:
|
||||
/* If this line is hit then there was an error in a core register value.
|
||||
The loop ensures the loop counter stops incrementing. */
|
||||
b reg2_error_loop
|
||||
nop
|
||||
|
||||
|
||||
.end
|
||||
|
||||
@ -0,0 +1,158 @@
|
||||
/*
|
||||
FreeRTOS V8.1.2 - Copyright (C) 2014 Real Time Engineers Ltd.
|
||||
All rights reserved
|
||||
|
||||
VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
|
||||
|
||||
***************************************************************************
|
||||
* *
|
||||
* FreeRTOS provides completely free yet professionally developed, *
|
||||
* robust, strictly quality controlled, supported, and cross *
|
||||
* platform software that has become a de facto standard. *
|
||||
* *
|
||||
* Help yourself get started quickly and support the FreeRTOS *
|
||||
* project by purchasing a FreeRTOS tutorial book, reference *
|
||||
* manual, or both from: http://www.FreeRTOS.org/Documentation *
|
||||
* *
|
||||
* Thank you! *
|
||||
* *
|
||||
***************************************************************************
|
||||
|
||||
This file is part of the FreeRTOS distribution.
|
||||
|
||||
FreeRTOS is free software; you can redistribute it and/or modify it under
|
||||
the terms of the GNU General Public License (version 2) as published by the
|
||||
Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception.
|
||||
|
||||
>>! NOTE: The modification to the GPL is included to allow you to !<<
|
||||
>>! distribute a combined work that includes FreeRTOS without being !<<
|
||||
>>! obliged to provide the source code for proprietary components !<<
|
||||
>>! outside of the FreeRTOS kernel. !<<
|
||||
|
||||
FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY
|
||||
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
|
||||
FOR A PARTICULAR PURPOSE. Full license text is available from the following
|
||||
link: http://www.freertos.org/a00114.html
|
||||
|
||||
1 tab == 4 spaces!
|
||||
|
||||
***************************************************************************
|
||||
* *
|
||||
* Having a problem? Start by reading the FAQ "My application does *
|
||||
* not run, what could be wrong?" *
|
||||
* *
|
||||
* http://www.FreeRTOS.org/FAQHelp.html *
|
||||
* *
|
||||
***************************************************************************
|
||||
|
||||
http://www.FreeRTOS.org - Documentation, books, training, latest versions,
|
||||
license and Real Time Engineers Ltd. contact details.
|
||||
|
||||
http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
|
||||
including FreeRTOS+Trace - an indispensable productivity tool, a DOS
|
||||
compatible FAT file system, and our tiny thread aware UDP/IP stack.
|
||||
|
||||
http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High
|
||||
Integrity Systems to sell under the OpenRTOS brand. Low cost OpenRTOS
|
||||
licenses offer ticketed support, indemnification and middleware.
|
||||
|
||||
http://www.SafeRTOS.com - High Integrity Systems also provide a safety
|
||||
engineered and independently SIL3 certified version for use in safety and
|
||||
mission critical applications that require provable dependability.
|
||||
|
||||
1 tab == 4 spaces!
|
||||
*/
|
||||
|
||||
/*
|
||||
BASIC SERIAL PORT DRIVER.
|
||||
|
||||
This file just maps generic functions used by FreeRTOS example code to the
|
||||
simple UART drivers provided by Altera.
|
||||
*/
|
||||
|
||||
/* Scheduler includes. */
|
||||
#include "FreeRTOS.h"
|
||||
#include "task.h"
|
||||
#include "queue.h"
|
||||
#include "semphr.h"
|
||||
|
||||
/* Demo application includes. */
|
||||
#include "serial.h"
|
||||
|
||||
/* Altera library includes. */
|
||||
#include "uart0_support.h"
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/*
|
||||
* See the serial2.h header file.
|
||||
*/
|
||||
xComPortHandle xSerialPortInitMinimal( uint32_t ulWantedBaud, UBaseType_t uxQueueLength )
|
||||
{
|
||||
/* Just call into the Altera support function, which has its own parameters,
|
||||
so the parameters passed in here are not used. */
|
||||
( void ) ulWantedBaud;
|
||||
( void ) uxQueueLength;
|
||||
uart0_init();
|
||||
|
||||
return ( xComPortHandle ) 0;
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
BaseType_t xSerialGetChar( xComPortHandle pxPort, signed char *pcRxedChar, TickType_t xBlockTime )
|
||||
{
|
||||
BaseType_t xReturn;
|
||||
|
||||
/* Just call into the Altera support function, which has its own parameters,
|
||||
so the parameters passed in here are not used. */
|
||||
( void ) pxPort;
|
||||
( void ) xBlockTime;
|
||||
|
||||
*pcRxedChar = uart0_getc();
|
||||
|
||||
if( *pcRxedChar != -1 )
|
||||
{
|
||||
xReturn = pdPASS;
|
||||
}
|
||||
else
|
||||
{
|
||||
xReturn = pdFAIL;
|
||||
}
|
||||
|
||||
return xReturn;
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void vSerialPutString( xComPortHandle pxPort, const signed char * const pcString, unsigned short usStringLength )
|
||||
{
|
||||
/* Just call into the Altera support function, which has its own parameters,
|
||||
so the parameters passed in here are not used. */
|
||||
( void ) pxPort;
|
||||
|
||||
uart0_print( ( char * ) pcString );
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
signed portBASE_TYPE xSerialPutChar( xComPortHandle pxPort, signed char cOutChar, TickType_t xBlockTime )
|
||||
{
|
||||
char cOutBytes[ 2 ];
|
||||
|
||||
/* Just call into the Altera support function, which has its own parameters,
|
||||
so the parameters passed in here are not used. */
|
||||
( void ) pxPort;
|
||||
|
||||
cOutBytes[ 0 ] = cOutChar;
|
||||
cOutBytes[ 1 ] = 0x00;
|
||||
uart0_print( cOutBytes );
|
||||
|
||||
return pdPASS;
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void vSerialClose(xComPortHandle xPort)
|
||||
{
|
||||
/* Not supported as not required by the demo application. */
|
||||
( void ) xPort;
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
Loading…
Reference in New Issue