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Minor formatting and name changes only.

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pull/4/head
Richard Barry 15 years ago
parent a93c8d6659
commit b492b7eb89
2 changed files with 57 additions and 49 deletions
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102
Demo/CORTUS_APS3_GCC/Demo/7seg.c
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@ -1,5 +1,5 @@
/*
FreeRTOS V6.0.0 - Copyright (C) 2009 Real Time Engineers Ltd.
FreeRTOS V6.0.4 - Copyright (C) 2010 Real Time Engineers Ltd.
***************************************************************************
* *
@ -33,9 +33,9 @@
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 it
can be viewed here: http://www.freertos.org/a00114.html and also obtained
more details. You should have received a copy of the GNU General Public
License and the FreeRTOS license exception along with FreeRTOS; if not it
can be viewed here: http://www.freertos.org/a00114.html and also obtained
by writing to Richard Barry, contact details for whom are available on the
FreeRTOS WEB site.
@ -51,6 +51,7 @@
licensing and training services.
*/
#include <stdlib.h>
/* Scheduler include files. */
@ -63,23 +64,25 @@
#define x7segSTACK_SIZE configMINIMAL_STACK_SIZE
static portTASK_FUNCTION_PROTO( vRefreshTask, pvParameters );
static portTASK_FUNCTION_PROTO( vCountTask, pvParameters );
static void prvRefreshTask( void *pvParameters );
static void prvCountTask( void *pvParameters );
/* Value to output to 7 segment display
led_digits[0] is the right most digit */
static signed char seg7_digits[4];
void vStart7SegTasks( unsigned portBASE_TYPE uxPriority )
{
xTaskCreate (vRefreshTask, ( signed char * ) "7SegRefresh", x7segSTACK_SIZE, NULL, uxPriority, ( xTaskHandle *) NULL );
xTaskCreate (vCountTask, ( signed char * ) "7SegCount", x7segSTACK_SIZE, NULL, uxPriority, ( xTaskHandle *) NULL );
xTaskCreate( prvRefreshTask, ( signed char * ) "7SegRefresh", x7segSTACK_SIZE, NULL, uxPriority, ( xTaskHandle *) NULL );
xTaskCreate( prvCountTask, ( signed char * ) "7SegCount", x7segSTACK_SIZE, NULL, uxPriority, ( xTaskHandle *) NULL );
}
/*-----------------------------------------------------------*/
/* Value to output to 7 segment display
led_digits[0] is the right most digit */
static signed char seg7_digits[4];
static portTASK_FUNCTION_PROTO( vRefreshTask, pvParameters )
static void prvRefreshTask( void *pvParameters )
{
/* This is table 3.3 from the Spartan-3 Starter Kit board user guide */
const unsigned char bits[16] = {
const unsigned char bits[ 16 ] =
{
0x01,
0x4f,
0x12,
@ -98,13 +101,14 @@ const unsigned char bits[16] = {
0x38
};
const unsigned char apsx[4] = {
const unsigned char apsx[4] =
{
0x06, /* 3 */
0x24, /* S */
0x18, /* P */
0x08 /* A */
};
portTickType xRefreshRate, xLastRefreshTime;
/* Digit to scan */
@ -112,60 +116,66 @@ static int d = 0;
xRefreshRate = 2;
/* We need to initialise xLastRefreshTime prior to the first call to
/* We need to initialise xLastRefreshTime prior to the first call to
vTaskDelayUntil(). */
xLastRefreshTime = xTaskGetTickCount();
for (;;)
{
for (d = 0; d < 4; d++)
for( d = 0; d < 4; d++ )
{
vTaskDelayUntil ( &xLastRefreshTime, xRefreshRate);
vTaskDelayUntil ( &xLastRefreshTime, xRefreshRate );
/* Display digit */
gpio->out.an = -1;
if (seg7_digits[1] == 4 || seg7_digits[1] == 5) {
gpio->out.digit = apsx[d];
} else {
gpio->out.digit = bits[seg7_digits[d]];
if( ( seg7_digits[ 1 ] == 4 ) || ( seg7_digits[ 1 ] == 5 ) )
{
gpio->out.digit = apsx[ d ];
}
else
{
gpio->out.digit = bits[ seg7_digits[ d ] ];
}
gpio->out.dp = 1;
gpio->out.an = ~(1 << d);
}
}
}
/*-----------------------------------------------------------*/
static portTASK_FUNCTION_PROTO( vCountTask, pvParameters )
static void prvCountTask( void *pvParameters )
{
portTickType xCountRate, xLastCountTime;
/* Approximately 20HZ */
xCountRate = configTICK_RATE_HZ/20;
xCountRate = configTICK_RATE_HZ / 20;
/* We need to initialise xLastCountTime prior to the first call to
/* We need to initialise xLastCountTime prior to the first call to
vTaskDelayUntil(). */
xLastCountTime = xTaskGetTickCount();
for (;;)
{
vTaskDelayUntil ( &xLastCountTime, xCountRate);
vTaskDelayUntil( &xLastCountTime, xCountRate );
/* Really ugly way to do BCD arithmetic.... */
seg7_digits[0] -= 1;
if (seg7_digits[0] < 0) {
seg7_digits[0] = 9;
seg7_digits[1] -= 1;
if (seg7_digits[1] < 0) {
seg7_digits[1] = 9;
seg7_digits[2] -= 1;
if (seg7_digits[2] < 0) {
seg7_digits[2] = 9;
seg7_digits[3] -= 1;
if (seg7_digits[3] < 0) {
seg7_digits[3] = 9;
seg7_digits[ 0 ] -= 1;
if( seg7_digits[ 0 ] < 0 )
{
seg7_digits[ 0 ] = 9;
seg7_digits[ 1 ] -= 1;
if( seg7_digits[ 1 ] < 0 )
{
seg7_digits[ 1 ] = 9;
seg7_digits[ 2 ] -= 1;
if( seg7_digits[ 2 ] < 0 )
{
seg7_digits[ 2 ] = 9;
seg7_digits[ 3 ] -= 1;
if( seg7_digits[ 3 ] < 0 )
{
seg7_digits[ 3 ] = 9;
}
}
}
@ -173,6 +183,4 @@ portTickType xCountRate, xLastCountTime;
}
}
// Local Variables:
// tab-width:4
// End:

4
Demo/CORTUS_APS3_GCC/Demo/serial.c
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@ -68,7 +68,7 @@
#include "serial.h"
/*-----------------------------------------------------------*/
#define COM_BLOCK_RETRYTIME 10
#define comBLOCK_RETRY_TIME 10
/*-----------------------------------------------------------*/
void vUARTInterruptHandlerTxWrapper(void) __attribute((naked));
@ -132,7 +132,7 @@ void vSerialPutString( xComPortHandle pxPort, const signed char * const pcString
for( i = 0; i < usStringLength; i++ )
{
/* Block until character has been transmitted. */
while( xSerialPutChar( pxPort, *pChNext, COM_BLOCK_RETRYTIME ) != pdTRUE ); pChNext++;
while( xSerialPutChar( pxPort, *pChNext, comBLOCK_RETRY_TIME ) != pdTRUE ); pChNext++;
}
}

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