diff --git a/FreeRTOS/Demo/RISC-V_RV32_SiFive_IAR/FreeRTOSConfig.h b/FreeRTOS/Demo/RISC-V_RV32_SiFive_IAR/FreeRTOSConfig.h
new file mode 100644
index 000000000..71e0bc9c8
--- /dev/null
+++ b/FreeRTOS/Demo/RISC-V_RV32_SiFive_IAR/FreeRTOSConfig.h
@@ -0,0 +1,101 @@
+/*
+ * FreeRTOS Kernel V10.2.1
+ * Copyright (C) 2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * http://www.FreeRTOS.org
+ * http://aws.amazon.com/freertos
+ *
+ * 1 tab == 4 spaces!
+ */
+
+#ifndef FREERTOS_CONFIG_H
+#define FREERTOS_CONFIG_H
+
+/*-----------------------------------------------------------
+ * Application specific definitions.
+ *
+ * These definitions should be adjusted for your particular hardware and
+ * application requirements.
+ *
+ * THESE PARAMETERS ARE DESCRIBED WITHIN THE 'CONFIGURATION' SECTION OF THE
+ * FreeRTOS API DOCUMENTATION AVAILABLE ON THE FreeRTOS.org WEB SITE.
+ *
+ * See http://www.freertos.org/a00110.html.
+ *----------------------------------------------------------*/
+
+#define configISR_STACK_SIZE_WORDS ( 200 )
+#define configCLINT_BASE_ADDRESS 0x2000000
+
+#define configUSE_PREEMPTION 1
+#define configUSE_IDLE_HOOK 1
+#define configUSE_TICK_HOOK 1
+#define configCPU_CLOCK_HZ ( ( uint32_t ) ( 32768 ) )
+#define configTICK_RATE_HZ ( ( TickType_t ) 1000 )
+#define configMAX_PRIORITIES ( 5 )
+#define configMINIMAL_STACK_SIZE ( ( uint32_t ) 170 ) /* Can be as low as 60 but some of the demo tasks that use this constant require it to be higher. */
+#define configTOTAL_HEAP_SIZE ( ( size_t ) ( 54 * 1024 ) )
+#define configMAX_TASK_NAME_LEN ( 16 )
+#define configUSE_TRACE_FACILITY 0
+#define configUSE_16_BIT_TICKS 0
+#define configIDLE_SHOULD_YIELD 0
+#define configUSE_MUTEXES 1
+#define configQUEUE_REGISTRY_SIZE 8
+#define configCHECK_FOR_STACK_OVERFLOW 2
+#define configUSE_RECURSIVE_MUTEXES 1
+#define configUSE_MALLOC_FAILED_HOOK 1
+#define configUSE_APPLICATION_TASK_TAG 0
+#define configUSE_COUNTING_SEMAPHORES 1
+#define configGENERATE_RUN_TIME_STATS 0
+
+/* Co-routine definitions. */
+#define configUSE_CO_ROUTINES 0
+#define configMAX_CO_ROUTINE_PRIORITIES ( 2 )
+
+/* Software timer definitions. */
+#define configUSE_TIMERS 1
+#define configTIMER_TASK_PRIORITY ( configMAX_PRIORITIES - 1 )
+#define configTIMER_QUEUE_LENGTH 4
+#define configTIMER_TASK_STACK_DEPTH ( configMINIMAL_STACK_SIZE )
+
+/* Task priorities. Allow these to be overridden. */
+#ifndef uartPRIMARY_PRIORITY
+ #define uartPRIMARY_PRIORITY ( configMAX_PRIORITIES - 3 )
+#endif
+
+/* Set the following definitions to 1 to include the API function, or zero
+to exclude the API function. */
+#define INCLUDE_vTaskPrioritySet 1
+#define INCLUDE_uxTaskPriorityGet 1
+#define INCLUDE_vTaskDelete 1
+#define INCLUDE_vTaskCleanUpResources 1
+#define INCLUDE_vTaskSuspend 1
+#define INCLUDE_vTaskDelayUntil 1
+#define INCLUDE_vTaskDelay 1
+#define INCLUDE_eTaskGetState 1
+#define INCLUDE_xTimerPendFunctionCall 1
+#define INCLUDE_xTaskAbortDelay 1
+#define INCLUDE_xTaskGetHandle 1
+#define INCLUDE_xSemaphoreGetMutexHolder 1
+
+/* Normal assert() semantics without relying on the provision of an assert.h
+header file. */
+#define configASSERT( x ) if( ( x ) == 0 ) { taskDISABLE_INTERRUPTS(); __asm volatile( "ebreak" ); for( ;; ); }
+
+#endif /* FREERTOS_CONFIG_H */
diff --git a/FreeRTOS/Demo/RISC-V_RV32_SiFive_IAR/RTOSDemo.ewp b/FreeRTOS/Demo/RISC-V_RV32_SiFive_IAR/RTOSDemo.ewp
new file mode 100644
index 000000000..0bdb38612
--- /dev/null
+++ b/FreeRTOS/Demo/RISC-V_RV32_SiFive_IAR/RTOSDemo.ewp
@@ -0,0 +1,1871 @@
+
+
+ 3
+
+ Debug
+
+ RISCV
+
+ 1
+
+ General
+ 1
+
+ 0
+ 1
+ 1
+
+
+
+
+
+
+
+
+
+
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+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ ICCRISCV
+ 1
+
+ 6
+ 1
+ 1
+
+
+
+
+
+
+
+
+
+
+
+
+
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+ IASMRISCV
+ 1
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+ 0
+ 1
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+
+
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+
+ OBJCOPY
+ 1
+
+ 0
+ 1
+ 1
+
+
+
+
+
+
+
+
+ CUSTOM
+ 3
+
+
+
+ 0
+
+
+
+ BICOMP
+ 0
+
+
+
+ BUILDACTION
+ 1
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+
+
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+
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+ ILINK
+ 1
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+ 0
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+
+
+
+ IARCHIVE
+ 1
+
+ 0
+ 1
+ 1
+
+
+
+
+
+
+ BILINK
+ 0
+
+
+
+
+ Release
+
+ RISCV
+
+ 0
+
+ General
+ 1
+
+ 0
+ 1
+ 0
+
+
+
+
+
+
+
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+
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+
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+
+
+
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+ ICCRISCV
+ 1
+
+ 6
+ 1
+ 0
+
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+
+
+
+
+
+ IASMRISCV
+ 1
+
+ 0
+ 1
+ 0
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ OBJCOPY
+ 1
+
+ 0
+ 1
+ 0
+
+
+
+
+
+
+
+
+ CUSTOM
+ 3
+
+
+
+ 0
+
+
+
+ BICOMP
+ 0
+
+
+
+ BUILDACTION
+ 1
+
+
+
+
+
+
+ ILINK
+ 1
+
+ 0
+ 1
+ 0
+
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+ IARCHIVE
+ 1
+
+ 0
+ 1
+ 0
+
+
+
+
+
+
+ BILINK
+ 0
+
+
+
+
+ blinky_demo
+
+ $PROJ_DIR$\main_blinky\main_blinky.c
+
+
+
+ FreeRTOS_source
+
+ include
+
+ $PROJ_DIR$\..\..\Source\include\event_groups.h
+
+
+ $PROJ_DIR$\..\..\Source\include\message_buffer.h
+
+
+ $PROJ_DIR$\..\..\Source\include\queue.h
+
+
+ $PROJ_DIR$\..\..\Source\include\semphr.h
+
+
+ $PROJ_DIR$\..\..\Source\include\stream_buffer.h
+
+
+ $PROJ_DIR$\..\..\Source\include\task.h
+
+
+ $PROJ_DIR$\..\..\Source\include\timers.h
+
+
+
+ portable
+
+ memmang
+
+ $PROJ_DIR$\..\..\Source\portable\MemMang\heap_4.c
+
+
+
+ $PROJ_DIR$\..\..\Source\portable\IAR\RISC-V\port.c
+
+
+ $PROJ_DIR$\..\..\Source\portable\IAR\RISC-V\portASM.s
+
+
+
+ $PROJ_DIR$\..\..\Source\event_groups.c
+
+
+ $PROJ_DIR$\..\..\Source\list.c
+
+
+ $PROJ_DIR$\..\..\Source\queue.c
+
+
+ $PROJ_DIR$\..\..\Source\stream_buffer.c
+
+
+ $PROJ_DIR$\..\..\Source\tasks.c
+
+
+ $PROJ_DIR$\..\..\Source\timers.c
+
+
+
+ full_demo
+
+ common
+
+ $PROJ_DIR$\..\Common\Minimal\AbortDelay.c
+
+
+ $PROJ_DIR$\..\Common\Minimal\blocktim.c
+
+
+ $PROJ_DIR$\..\Common\Minimal\countsem.c
+
+
+ $PROJ_DIR$\..\Common\Minimal\death.c
+
+
+ $PROJ_DIR$\..\Common\Minimal\dynamic.c
+
+
+ $PROJ_DIR$\..\Common\Minimal\EventGroupsDemo.c
+
+
+ $PROJ_DIR$\..\Common\Minimal\GenQTest.c
+
+
+ $PROJ_DIR$\..\Common\Minimal\MessageBufferDemo.c
+
+
+ $PROJ_DIR$\..\Common\Minimal\recmutex.c
+
+
+ $PROJ_DIR$\..\Common\Minimal\StreamBufferDemo.c
+
+
+ $PROJ_DIR$\..\Common\Minimal\StreamBufferInterrupt.c
+
+
+ $PROJ_DIR$\..\Common\Minimal\TaskNotify.c
+
+
+ $PROJ_DIR$\..\Common\Minimal\TimerDemo.c
+
+
+
+ $PROJ_DIR$\full_demo\main_full.c
+
+
+ $PROJ_DIR$\full_demo\RegTest.s
+
+
+
+ $PROJ_DIR$\FreeRTOSConfig.h
+
+
+ $PROJ_DIR$\main.c
+
+
diff --git a/FreeRTOS/Demo/RISC-V_RV32_SiFive_IAR/RTOSDemo.eww b/FreeRTOS/Demo/RISC-V_RV32_SiFive_IAR/RTOSDemo.eww
new file mode 100644
index 000000000..92414519a
--- /dev/null
+++ b/FreeRTOS/Demo/RISC-V_RV32_SiFive_IAR/RTOSDemo.eww
@@ -0,0 +1,7 @@
+
+
+
+ $WS_DIR$\RTOSDemo.ewp
+
+
+
diff --git a/FreeRTOS/Demo/RISC-V_RV32_SiFive_IAR/SiFive_code/riscv_plic0.c b/FreeRTOS/Demo/RISC-V_RV32_SiFive_IAR/SiFive_code/riscv_plic0.c
new file mode 100644
index 000000000..ed9782450
--- /dev/null
+++ b/FreeRTOS/Demo/RISC-V_RV32_SiFive_IAR/SiFive_code/riscv_plic0.c
@@ -0,0 +1,172 @@
+/* Copyright 2018 SiFive, Inc */
+/* SPDX-License-Identifier: Apache-2.0 */
+
+#include
+
+#ifdef METAL_RISCV_PLIC0
+
+#include
+#include
+#include
+#include
+
+unsigned int __metal_plic0_claim_interrupt (struct __metal_driver_riscv_plic0 *plic)
+{
+ unsigned long control_base = __metal_driver_sifive_plic0_control_base((struct metal_interrupt *)plic);
+ return __METAL_ACCESS_ONCE((__metal_io_u32 *)(control_base +
+ METAL_RISCV_PLIC0_CLAIM));
+}
+
+void __metal_plic0_complete_interrupt(struct __metal_driver_riscv_plic0 *plic,
+ unsigned int id)
+{
+ unsigned long control_base = __metal_driver_sifive_plic0_control_base((struct metal_interrupt *)plic);
+ __METAL_ACCESS_ONCE((__metal_io_u32 *)(control_base +
+ METAL_RISCV_PLIC0_CLAIM)) = id;
+}
+
+void __metal_plic0_set_threshold(struct __metal_driver_riscv_plic0 *plic,
+ unsigned int threshold)
+{
+ unsigned long control_base = __metal_driver_sifive_plic0_control_base((struct metal_interrupt *)plic);
+ __METAL_ACCESS_ONCE((__metal_io_u32 *)(control_base +
+ METAL_RISCV_PLIC0_THRESHOLD)) = threshold;
+}
+
+void __metal_plic0_set_priority(struct __metal_driver_riscv_plic0 *plic,
+ int id, unsigned int priority)
+{
+ unsigned long control_base = __metal_driver_sifive_plic0_control_base((struct metal_interrupt *)plic);
+ int max_priority = __metal_driver_sifive_plic0_max_priority((struct metal_interrupt *)plic);
+ if ( (max_priority) && (priority < max_priority) ) {
+ __METAL_ACCESS_ONCE((__metal_io_u32 *)(control_base +
+ METAL_RISCV_PLIC0_PRIORITY_BASE +
+ (id << METAL_PLIC_SOURCE_PRIORITY_SHIFT))) = priority;
+ }
+}
+
+void __metal_plic0_enable(struct __metal_driver_riscv_plic0 *plic, int id, int enable)
+{
+ unsigned int current;
+ unsigned long hartid = __metal_myhart_id();
+ unsigned long control_base = __metal_driver_sifive_plic0_control_base((struct metal_interrupt *)plic);
+
+ current = __METAL_ACCESS_ONCE((__metal_io_u32 *)(control_base +
+ METAL_RISCV_PLIC0_ENABLE_BASE +
+ (id >> METAL_PLIC_SOURCE_SHIFT) * 4));
+ __METAL_ACCESS_ONCE((__metal_io_u32 *)(control_base +
+ METAL_RISCV_PLIC0_ENABLE_BASE +
+ ((id >> METAL_PLIC_SOURCE_SHIFT) * 4))) =
+ enable ? (current | (1 << (id & METAL_PLIC_SOURCE_MASK)))
+ : (current & ~(1 << (id & METAL_PLIC_SOURCE_MASK)));
+}
+
+void __metal_plic0_default_handler (int id, void *priv) {
+ metal_shutdown(300);
+}
+
+void __metal_plic0_handler (int id, void *priv)
+{
+ struct __metal_driver_riscv_plic0 *plic = priv;
+ unsigned int idx = __metal_plic0_claim_interrupt(plic);
+ int num_interrupts = __metal_driver_sifive_plic0_num_interrupts((struct metal_interrupt *)plic);
+
+ if ( (idx < num_interrupts) && (plic->metal_exint_table[idx]) ) {
+ plic->metal_exint_table[idx](idx,
+ plic->metal_exdata_table[idx].exint_data);
+ }
+
+ __metal_plic0_complete_interrupt(plic, idx);
+}
+
+void __metal_driver_riscv_plic0_init (struct metal_interrupt *controller)
+{
+ struct __metal_driver_riscv_plic0 *plic = (void *)(controller);
+
+ if ( !plic->init_done ) {
+ int num_interrupts, line;
+ struct metal_interrupt *intc;
+
+ for(int parent = 0; parent < __METAL_PLIC_NUM_PARENTS; parent++) {
+ num_interrupts = __metal_driver_sifive_plic0_num_interrupts(controller);
+ intc = __metal_driver_sifive_plic0_interrupt_parents(controller, parent);
+ line = __metal_driver_sifive_plic0_interrupt_lines(controller, parent);
+
+ /* Initialize ist parent controller, aka cpu_intc. */
+ intc->vtable->interrupt_init(intc);
+
+ for (int i = 0; i < num_interrupts; i++) {
+ __metal_plic0_enable(plic, i, METAL_DISABLE);
+ __metal_plic0_set_priority(plic, i, 0);
+ plic->metal_exint_table[i] = NULL;
+ plic->metal_exdata_table[i].sub_int = NULL;
+ plic->metal_exdata_table[i].exint_data = NULL;
+ }
+
+ __metal_plic0_set_threshold(plic, 0);
+
+ /* Register plic (ext) interrupt with with parent controller */
+ intc->vtable->interrupt_register(intc, line, NULL, plic);
+ /* Register plic handler for dispatching its device interrupts */
+ intc->vtable->interrupt_register(intc, line, __metal_plic0_handler, plic);
+ /* Enable plic (ext) interrupt with with parent controller */
+ intc->vtable->interrupt_enable(intc, line);
+ }
+ plic->init_done = 1;
+ }
+}
+
+int __metal_driver_riscv_plic0_register (struct metal_interrupt *controller,
+ int id, metal_interrupt_handler_t isr,
+ void *priv)
+{
+ struct __metal_driver_riscv_plic0 *plic = (void *)(controller);
+
+ if (id >= __metal_driver_sifive_plic0_num_interrupts(controller)) {
+ return -1;
+ }
+
+ if (isr) {
+ __metal_plic0_set_priority(plic ,id, 2);
+ plic->metal_exint_table[id] = isr;
+ plic->metal_exdata_table[id].exint_data = priv;
+ } else {
+ __metal_plic0_set_priority(plic, id, 1);
+ plic->metal_exint_table[id] = __metal_plic0_default_handler;
+ plic->metal_exdata_table[id].sub_int = priv;
+ }
+
+ return 0;
+}
+
+int __metal_driver_riscv_plic0_enable (struct metal_interrupt *controller, int id)
+{
+ struct __metal_driver_riscv_plic0 *plic = (void *)(controller);
+
+ if (id >= __metal_driver_sifive_plic0_num_interrupts(controller)) {
+ return -1;
+ }
+
+ __metal_plic0_enable(plic, id, METAL_ENABLE);
+ return 0;
+}
+
+int __metal_driver_riscv_plic0_disable (struct metal_interrupt *controller, int id)
+{
+ struct __metal_driver_riscv_plic0 *plic = (void *)(controller);
+
+ if (id >= __metal_driver_sifive_plic0_num_interrupts(controller)) {
+ return -1;
+ }
+ __metal_plic0_enable(plic, id, METAL_DISABLE);
+ return 0;
+}
+
+__METAL_DEFINE_VTABLE(__metal_driver_vtable_riscv_plic0) = {
+ .plic_vtable.interrupt_init = __metal_driver_riscv_plic0_init,
+ .plic_vtable.interrupt_register = __metal_driver_riscv_plic0_register,
+ .plic_vtable.interrupt_enable = __metal_driver_riscv_plic0_enable,
+ .plic_vtable.interrupt_disable = __metal_driver_riscv_plic0_disable,
+};
+
+#endif /* METAL_RISCV_PLIC0 */
diff --git a/FreeRTOS/Demo/RISC-V_RV32_SiFive_IAR/SiFive_code/sifive_uart0.c b/FreeRTOS/Demo/RISC-V_RV32_SiFive_IAR/SiFive_code/sifive_uart0.c
new file mode 100644
index 000000000..46971ec79
--- /dev/null
+++ b/FreeRTOS/Demo/RISC-V_RV32_SiFive_IAR/SiFive_code/sifive_uart0.c
@@ -0,0 +1,151 @@
+/* Copyright 2018 SiFive, Inc */
+/* SPDX-License-Identifier: Apache-2.0 */
+
+#include
+
+#ifdef METAL_SIFIVE_UART0
+
+#include
+#include
+
+/* TXDATA Fields */
+#define UART_TXEN (1 << 0)
+#define UART_TXFULL (1 << 31)
+
+/* RXDATA Fields */
+#define UART_RXEN (1 << 0)
+#define UART_RXEMPTY (1 << 31)
+
+/* TXCTRL Fields */
+#define UART_NSTOP (1 << 1)
+#define UART_TXCNT(count) ((0x7 & count) << 16)
+
+/* IP Fields */
+#define UART_TXWM (1 << 0)
+
+#define UART_REG(offset) (((unsigned long)control_base + offset))
+#define UART_REGB(offset) (__METAL_ACCESS_ONCE((__metal_io_u8 *)UART_REG(offset)))
+#define UART_REGW(offset) (__METAL_ACCESS_ONCE((__metal_io_u32 *)UART_REG(offset)))
+
+struct metal_interrupt *
+__metal_driver_sifive_uart0_interrupt_controller(struct metal_uart *uart)
+{
+ return __metal_driver_sifive_uart0_interrupt_parent(uart);
+}
+
+int __metal_driver_sifive_uart0_get_interrupt_id(struct metal_uart *uart)
+{
+ return (__metal_driver_sifive_uart0_interrupt_line(uart) + METAL_INTERRUPT_ID_GL0);
+}
+
+int __metal_driver_sifive_uart0_putc(struct metal_uart *uart, unsigned char c)
+{
+ long control_base = __metal_driver_sifive_uart0_control_base(uart);
+
+ while ((UART_REGW(METAL_SIFIVE_UART0_TXDATA) & UART_TXFULL) != 0) { }
+ UART_REGW(METAL_SIFIVE_UART0_TXDATA) = c;
+ return 0;
+}
+
+int __metal_driver_sifive_uart0_getc(struct metal_uart *uart, unsigned char *c)
+{
+ uint32_t ch = UART_RXEMPTY;
+ long control_base = __metal_driver_sifive_uart0_control_base(uart);
+
+ while (ch & UART_RXEMPTY) {
+ ch = UART_REGW(METAL_SIFIVE_UART0_RXDATA);
+ }
+ *c = ch & 0xff;
+ return 0;
+}
+
+int __metal_driver_sifive_uart0_get_baud_rate(struct metal_uart *guart)
+{
+ struct __metal_driver_sifive_uart0 *uart = (void *)guart;
+ return uart->baud_rate;
+}
+
+int __metal_driver_sifive_uart0_set_baud_rate(struct metal_uart *guart, int baud_rate)
+{
+ struct __metal_driver_sifive_uart0 *uart = (void *)guart;
+ long control_base = __metal_driver_sifive_uart0_control_base(guart);
+ struct metal_clock *clock = __metal_driver_sifive_uart0_clock(guart);
+
+ uart->baud_rate = baud_rate;
+
+ if (clock != NULL) {
+ long clock_rate = clock->vtable->get_rate_hz(clock);
+ UART_REGW(METAL_SIFIVE_UART0_DIV) = clock_rate / baud_rate - 1;
+ UART_REGW(METAL_SIFIVE_UART0_TXCTRL) |= UART_TXEN;
+ UART_REGW(METAL_SIFIVE_UART0_RXCTRL) |= UART_RXEN;
+ }
+ return 0;
+}
+
+static void pre_rate_change_callback(void *priv)
+{
+ struct __metal_driver_sifive_uart0 *uart = priv;
+ long control_base = __metal_driver_sifive_uart0_control_base((struct metal_uart *)priv);
+ struct metal_clock *clock = __metal_driver_sifive_uart0_clock((struct metal_uart *)priv);
+
+ /* Detect when the TXDATA is empty by setting the transmit watermark count
+ * to one and waiting until an interrupt is pending */
+
+ UART_REGW(METAL_SIFIVE_UART0_TXCTRL) &= ~(UART_TXCNT(0x7));
+ UART_REGW(METAL_SIFIVE_UART0_TXCTRL) |= UART_TXCNT(1);
+
+ while((UART_REGW(METAL_SIFIVE_UART0_IP) & UART_TXWM) == 0) ;
+
+ /* When the TXDATA clears, the UART is still shifting out the last byte.
+ * Calculate the time we must drain to finish transmitting and then wait
+ * that long. */
+
+ long bits_per_symbol = (UART_REGW(METAL_SIFIVE_UART0_TXCTRL) & (1 << 1)) ? 9 : 10;
+ long clk_freq = clock->vtable->get_rate_hz(clock);
+ long cycles_to_wait = bits_per_symbol * clk_freq / uart->baud_rate;
+
+ for(volatile long x = 0; x < cycles_to_wait; x++)
+ asm("nop");
+}
+
+static void post_rate_change_callback(void *priv)
+{
+ struct __metal_driver_sifive_uart0 *uart = priv;
+ metal_uart_set_baud_rate(&uart->uart, uart->baud_rate);
+}
+
+void __metal_driver_sifive_uart0_init(struct metal_uart *guart, int baud_rate)
+{
+ struct __metal_driver_sifive_uart0 *uart = (void *)(guart);
+ struct metal_clock *clock = __metal_driver_sifive_uart0_clock(guart);
+ struct __metal_driver_sifive_gpio0 *pinmux = __metal_driver_sifive_uart0_pinmux(guart);
+
+ if(clock != NULL) {
+ metal_clock_register_pre_rate_change_callback(clock, &pre_rate_change_callback, guart);
+ metal_clock_register_post_rate_change_callback(clock, &post_rate_change_callback, guart);
+ }
+
+ metal_uart_set_baud_rate(&(uart->uart), baud_rate);
+
+ if (pinmux != NULL) {
+ long pinmux_output_selector = __metal_driver_sifive_uart0_pinmux_output_selector(guart);
+ long pinmux_source_selector = __metal_driver_sifive_uart0_pinmux_source_selector(guart);
+ pinmux->gpio.vtable->enable_io(
+ (struct metal_gpio *) pinmux,
+ pinmux_output_selector,
+ pinmux_source_selector
+ );
+ }
+}
+
+__METAL_DEFINE_VTABLE(__metal_driver_vtable_sifive_uart0) = {
+ .uart.init = __metal_driver_sifive_uart0_init,
+ .uart.putc = __metal_driver_sifive_uart0_putc,
+ .uart.getc = __metal_driver_sifive_uart0_getc,
+ .uart.get_baud_rate = __metal_driver_sifive_uart0_get_baud_rate,
+ .uart.set_baud_rate = __metal_driver_sifive_uart0_set_baud_rate,
+ .uart.controller_interrupt = __metal_driver_sifive_uart0_interrupt_controller,
+ .uart.get_interrupt_id = __metal_driver_sifive_uart0_get_interrupt_id,
+};
+
+#endif /* METAL_SIFIVE_UART0 */
diff --git a/FreeRTOS/Demo/RISC-V_RV32_SiFive_IAR/full_demo/RegTest.s b/FreeRTOS/Demo/RISC-V_RV32_SiFive_IAR/full_demo/RegTest.s
new file mode 100644
index 000000000..19c820101
--- /dev/null
+++ b/FreeRTOS/Demo/RISC-V_RV32_SiFive_IAR/full_demo/RegTest.s
@@ -0,0 +1,262 @@
+/*
+ * FreeRTOS Kernel V10.2.1
+ * Copyright (C) 2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * http://www.FreeRTOS.org
+ * http://aws.amazon.com/freertos
+ *
+ * 1 tab == 4 spaces!
+ */
+
+ EXTERN ulRegTest1LoopCounter
+ EXTERN ulRegTest2LoopCounter
+
+ PUBLIC vRegTest1Implementation
+ PUBLIC vRegTest2Implementation
+
+/*-----------------------------------------------------------*/
+
+ SECTION `.text`:CODE:NOROOT(2)
+ CODE
+
+/*
+ * The register check tasks are described in the comments at the top of
+ * main_full.c.
+ */
+
+vRegTest1Implementation:
+
+ /* Fill the core registers with known values. */
+ li x5, 0x5
+ li x6, 0x6
+ li x7, 0x7
+ li x8, 0x8
+ li x9, 0x9
+ li x10, 0xa
+ li x11, 0xb
+ li x12, 0xc
+ li x13, 0xd
+ li x14, 0xe
+ li x15, 0xf
+ li x16, 0x10
+ li x17, 0x11
+ li x18, 0x12
+ li x19, 0x13
+ li x20, 0x14
+ li x21, 0x15
+ li x22, 0x16
+ li x23, 0x17
+ li x24, 0x18
+ li x25, 0x19
+ li x26, 0x1a
+ li x27, 0x1b
+ li x28, 0x1c
+ li x29, 0x1d
+ li x30, 0x1e
+
+reg1_loop:
+
+ /* Check each register still contains the expected known value.
+ vRegTest1Implementation uses x31 as the temporary, vRegTest2Implementation
+ uses x5 as the temporary. */
+ li x31, 0x5
+ bne x31, x5, reg1_error_loop
+ li x31, 0x6
+ bne x31, x6, reg1_error_loop
+ li x31, 0x7
+ bne x31, x7, reg1_error_loop
+ li x31, 0x8
+ bne x31, x8, reg1_error_loop
+ li x31, 0x9
+ bne x31, x9, reg1_error_loop
+ li x31, 0xa
+ bne x31, x10, reg1_error_loop
+ li x31, 0xb
+ bne x31, x11, reg1_error_loop
+ li x31, 0xc
+ bne x31, x12, reg1_error_loop
+ li x31, 0xd
+ bne x31, x13, reg1_error_loop
+ li x31, 0xe
+ bne x31, x14, reg1_error_loop
+ li x31, 0xf
+ bne x31, x15, reg1_error_loop
+ li x31, 0x10
+ bne x31, x16, reg1_error_loop
+ li x31, 0x11
+ bne x31, x17, reg1_error_loop
+ li x31, 0x12
+ bne x31, x18, reg1_error_loop
+ li x31, 0x13
+ bne x31, x19, reg1_error_loop
+ li x31, 0x14
+ bne x31, x20, reg1_error_loop
+ li x31, 0x15
+ bne x31, x21, reg1_error_loop
+ li x31, 0x16
+ bne x31, x22, reg1_error_loop
+ li x31, 0x17
+ bne x31, x23, reg1_error_loop
+ li x31, 0x18
+ bne x31, x24, reg1_error_loop
+ li x31, 0x19
+ bne x31, x25, reg1_error_loop
+ li x31, 0x1a
+ bne x31, x26, reg1_error_loop
+ li x31, 0x1b
+ bne x31, x27, reg1_error_loop
+ li x31, 0x1c
+ bne x31, x28, reg1_error_loop
+ li x31, 0x1d
+ bne x31, x29, reg1_error_loop
+ li x31, 0x1e
+ bne x31, x30, reg1_error_loop
+
+ /* Everything passed, increment the loop counter. */
+ lw x31, ulRegTest1LoopCounter
+//_RB_ lw x30, 0(x31)
+ addi x30, x30, 1
+ sw x30, 0(x31)
+
+ /* Restore clobbered register reading for next loop. */
+ li x30, 0x1e
+
+ /* Yield to increase code coverage. */
+ ecall
+
+ /* Start again. */
+ jal reg1_loop
+
+reg1_error_loop:
+ /* Jump here if a register contains an uxpected value. This stops the loop
+ counter being incremented so the check task knows an error was found. */
+ jal reg1_error_loop
+
+/*-----------------------------------------------------------*/
+
+vRegTest2Implementation:
+
+ /* Fill the core registers with known values. */
+ li x6, 0x61
+ li x7, 0x71
+ li x8, 0x81
+ li x9, 0x91
+ li x10, 0xa1
+ li x11, 0xb1
+ li x12, 0xc1
+ li x13, 0xd1
+ li x14, 0xe1
+ li x15, 0xf1
+ li x16, 0x20
+ li x17, 0x21
+ li x18, 0x22
+ li x19, 0x23
+ li x20, 0x24
+ li x21, 0x25
+ li x22, 0x26
+ li x23, 0x27
+ li x24, 0x28
+ li x25, 0x29
+ li x26, 0x2a
+ li x27, 0x2b
+ li x28, 0x2c
+ li x29, 0x2d
+ li x30, 0x2e
+ li x31, 0x2f
+
+Reg2_loop:
+
+ /* Check each register still contains the expected known value.
+ vRegTest2Implementation uses x5 as the temporary, vRegTest1Implementation
+ uses x31 as the temporary. */
+ li x5, 0x61
+ bne x5, x6, reg2_error_loop
+ li x5, 0x71
+ bne x5, x7, reg2_error_loop
+ li x5, 0x81
+ bne x5, x8, reg2_error_loop
+ li x5, 0x91
+ bne x5, x9, reg2_error_loop
+ li x5, 0xa1
+ bne x5, x10, reg2_error_loop
+ li x5, 0xb1
+ bne x5, x11, reg2_error_loop
+ li x5, 0xc1
+ bne x5, x12, reg2_error_loop
+ li x5, 0xd1
+ bne x5, x13, reg2_error_loop
+ li x5, 0xe1
+ bne x5, x14, reg2_error_loop
+ li x5, 0xf1
+ bne x5, x15, reg2_error_loop
+ li x5, 0x20
+ bne x5, x16, reg2_error_loop
+ li x5, 0x21
+ bne x5, x17, reg2_error_loop
+ li x5, 0x22
+ bne x5, x18, reg2_error_loop
+ li x5, 0x23
+ bne x5, x19, reg2_error_loop
+ li x5, 0x24
+ bne x5, x20, reg2_error_loop
+ li x5, 0x25
+ bne x5, x21, reg2_error_loop
+ li x5, 0x26
+ bne x5, x22, reg2_error_loop
+ li x5, 0x27
+ bne x5, x23, reg2_error_loop
+ li x5, 0x28
+ bne x5, x24, reg2_error_loop
+ li x5, 0x29
+ bne x5, x25, reg2_error_loop
+ li x5, 0x2a
+ bne x5, x26, reg2_error_loop
+ li x5, 0x2b
+ bne x5, x27, reg2_error_loop
+ li x5, 0x2c
+ bne x5, x28, reg2_error_loop
+ li x5, 0x2d
+ bne x5, x29, reg2_error_loop
+ li x5, 0x2e
+ bne x5, x30, reg2_error_loop
+ li x5, 0x2f
+ bne x5, x31, reg2_error_loop
+
+ /* Everything passed, increment the loop counter. */
+ lw x5, ulRegTest2LoopCounter
+//_RB_ lw x6, 0(x5)
+ addi x6, x6, 1
+ sw x6, 0(x5)
+
+ /* Restore clobbered register reading for next loop. */
+ li x6, 0x61
+
+ /* Start again. */
+ jal Reg2_loop
+
+reg2_error_loop:
+ /* Jump here if a register contains an uxpected value. This stops the loop
+ counter being incremented so the check task knows an error was found. */
+ jal reg2_error_loop
+
+/*-----------------------------------------------------------*/
+
+
+
diff --git a/FreeRTOS/Demo/RISC-V_RV32_SiFive_IAR/full_demo/main_full.c b/FreeRTOS/Demo/RISC-V_RV32_SiFive_IAR/full_demo/main_full.c
new file mode 100644
index 000000000..8626d536a
--- /dev/null
+++ b/FreeRTOS/Demo/RISC-V_RV32_SiFive_IAR/full_demo/main_full.c
@@ -0,0 +1,397 @@
+/*
+ * FreeRTOS Kernel V10.2.1
+ * Copyright (C) 2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * http://www.FreeRTOS.org
+ * http://aws.amazon.com/freertos
+ *
+ * 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_SIMPLE_BLINKY_DEMO_ONLY setting in main.c is used to select
+ * between the two. See the notes on using mainCREATE_SIMPLE_BLINKY_DEMO_ONLY
+ * in main.c. This file implements the comprehensive test and demo 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 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 executes every three seconds. It 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
+ * prints an error message to the UART, otherwise it prints "Pass.".
+ */
+
+/* Standard includes. */
+#include
+#include
+
+/* Kernel includes. */
+#include "FreeRTOS.h"
+#include "task.h"
+#include "timers.h"
+#include "semphr.h"
+
+
+/* Standard demo application includes. */
+#include "dynamic.h"
+#include "blocktim.h"
+#include "GenQTest.h"
+#include "recmutex.h"
+#include "TimerDemo.h"
+#include "EventGroupsDemo.h"
+#include "TaskNotify.h"
+#include "AbortDelay.h"
+#include "countsem.h"
+#include "death.h"
+#include "MessageBufferDemo.h"
+#include "StreamBufferDemo.h"
+#include "StreamBufferInterrupt.h"
+
+/* Priorities for the demo application tasks. */
+#define mainCHECK_TASK_PRIORITY ( configMAX_PRIORITIES - 1 )
+#define mainCREATOR_TASK_PRIORITY ( tskIDLE_PRIORITY + 3UL )
+
+/* The period of the check task, in ms, converted to ticks using the
+pdMS_TO_TICKS() macro. mainNO_ERROR_CHECK_TASK_PERIOD is used if no errors have
+been found, mainERROR_CHECK_TASK_PERIOD is used if an error has been found. */
+#define mainNO_ERROR_CHECK_TASK_PERIOD pdMS_TO_TICKS( 3000UL )
+#define mainERROR_CHECK_TASK_PERIOD pdMS_TO_TICKS( 500UL )
+
+/* 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 size of the stack allocated to the check task (as described in the
+comments at the top of this file. */
+#define mainCHECK_TASK_STACK_SIZE_WORDS 100
+
+/* Size of the stacks to allocated for the register check tasks. */
+#define mainREG_TEST_STACK_SIZE_WORDS 70
+
+/*-----------------------------------------------------------*/
+
+/*
+ * Called by main() to run the full demo (as opposed to the blinky demo) when
+ * mainCREATE_SIMPLE_BLINKY_DEMO_ONLY is set to 0.
+ */
+void main_full( void );
+
+/*
+ * The check task, as described at the top of this file.
+ */
+static void prvCheckTask( void *pvParameters );
+
+/*
+ * Initialise and start the peripheral timers that are used to exercise external
+ * interrupt processing.
+ */
+static void prvSetupPeripheralTimers( void );
+
+/*
+ * Register check tasks 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 );
+
+/*
+ * Tick hook used by the full demo, which includes code that interacts with
+ * some of the tests.
+ */
+void vFullDemoTickHook( void );
+
+/*-----------------------------------------------------------*/
+
+/* 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 have not discovered any errors. If a variable
+stops incrementing, then an error has been found. */
+volatile uint32_t ulRegTest1LoopCounter = 0UL, ulRegTest2LoopCounter = 0UL;
+
+/*-----------------------------------------------------------*/
+
+void main_full( void )
+{
+ /* Start all the other standard demo/test tasks. They have no particular
+ functionality, but do demonstrate how to use the FreeRTOS API and test the
+ kernel port. */
+ vStartDynamicPriorityTasks();
+ vCreateBlockTimeTasks();
+ vStartGenericQueueTasks( tskIDLE_PRIORITY );
+ vStartRecursiveMutexTasks();
+ vStartTimerDemoTask( mainTIMER_TEST_PERIOD );
+ vStartEventGroupTasks();
+ vStartTaskNotifyTask();
+ vCreateAbortDelayTasks();
+ vStartCountingSemaphoreTasks();
+ vStartMessageBufferTasks( configMINIMAL_STACK_SIZE );
+ vStartStreamBufferTasks();
+ vStartStreamBufferInterruptDemo();
+
+ /* Create the register check tasks, as described at the top of this file.
+ Use xTaskCreateStatic() to create a task using only statically allocated
+ memory. */
+ xTaskCreate( prvRegTestTaskEntry1, /* The function that implements the task. */
+ "Reg1", /* The name of the task. */
+ mainREG_TEST_STACK_SIZE_WORDS, /* Size of stack to allocate for the task - in words not bytes!. */
+ mainREG_TEST_TASK_1_PARAMETER, /* Parameter passed into the task. */
+ tskIDLE_PRIORITY, /* Priority of the task. */
+ NULL ); /* Can be used to pass out a handle to the created task. */
+ xTaskCreate( prvRegTestTaskEntry2, "Reg2", mainREG_TEST_STACK_SIZE_WORDS, mainREG_TEST_TASK_2_PARAMETER, tskIDLE_PRIORITY, NULL );
+
+ /* Create the task that performs the 'check' functionality, as described at
+ the top of this file. */
+ xTaskCreate( prvCheckTask, "Check", mainCHECK_TASK_STACK_SIZE_WORDS, 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 insufficient FreeRTOS heap memory available for the Idle and/or
+ timer tasks to be created. See the memory management section on the
+ FreeRTOS web site for more details on the FreeRTOS heap
+ http://www.freertos.org/a00111.html. */
+ for( ;; );
+}
+/*-----------------------------------------------------------*/
+
+static void prvCheckTask( void *pvParameters )
+{
+TickType_t xDelayPeriod = mainNO_ERROR_CHECK_TASK_PERIOD;
+TickType_t xLastExecutionTime;
+uint32_t ulLastRegTest1Value = 0, ulLastRegTest2Value = 0;
+char * const pcPassMessage = ".";
+char * pcStatusMessage = pcPassMessage;
+extern void vSendString( const char * const pcString );
+extern void vToggleLED( void );
+
+ /* Just to stop compiler warnings. */
+ ( void ) pvParameters;
+
+ /* Start with a pass message, after which a '.' character will be printed
+ out on each successful loop. */
+ vSendString( "Pass" );
+
+ /* 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( xAreDynamicPriorityTasksStillRunning() == pdFALSE )
+ {
+ pcStatusMessage = "ERROR: Dynamic priority demo/tests.\r\n";
+ }
+
+ if( xAreBlockTimeTestTasksStillRunning() == pdFALSE )
+ {
+ pcStatusMessage = "ERROR: Block time demo/tests.\r\n";
+ }
+
+ if( xAreGenericQueueTasksStillRunning() == pdFALSE )
+ {
+ pcStatusMessage = "ERROR: Generic queue demo/tests.\r\n";
+ }
+
+ if( xAreRecursiveMutexTasksStillRunning() == pdFALSE )
+ {
+ pcStatusMessage = "ERROR: Recursive mutex demo/tests.\r\n";
+ }
+
+ if( xAreTimerDemoTasksStillRunning( ( TickType_t ) xDelayPeriod ) == pdFALSE )
+ {
+ pcStatusMessage = "ERROR: Timer demo/tests.\r\n";
+ }
+
+ if( xAreEventGroupTasksStillRunning() == pdFALSE )
+ {
+ pcStatusMessage = "ERROR: Event group demo/tests.\r\n";
+ }
+
+ if( xAreTaskNotificationTasksStillRunning() == pdFALSE )
+ {
+ pcStatusMessage = "ERROR: Task notification demo/tests.\r\n";
+ }
+
+ if( xAreAbortDelayTestTasksStillRunning() == pdFALSE )
+ {
+ pcStatusMessage = "ERROR: Abort delay.\r\n";
+ }
+
+ if( xAreCountingSemaphoreTasksStillRunning() == pdFALSE )
+ {
+ pcStatusMessage = "ERROR: Counting semaphores.\r\n";
+ }
+
+ if( xIsCreateTaskStillRunning() == pdFALSE )
+ {
+ pcStatusMessage = "ERROR: Suicide tasks.\r\n";
+ }
+
+ if( xAreMessageBufferTasksStillRunning() == pdFALSE )
+ {
+ pcStatusMessage = "ERROR: Message buffer.\r\n";
+ }
+
+ if( xAreStreamBufferTasksStillRunning() == pdFALSE )
+ {
+ pcStatusMessage = "ERROR: Stream buffer.\r\n";
+ }
+
+ if( xIsInterruptStreamBufferDemoStillRunning() == pdFALSE )
+ {
+ pcStatusMessage = "ERROR: Stream buffer interrupt.\r\n";
+ }
+
+ /* Check that the register test 1 task is still running. */
+ if( ulLastRegTest1Value == ulRegTest1LoopCounter )
+ {
+ pcStatusMessage = "ERROR: Register test 1.\r\n";
+ }
+ ulLastRegTest1Value = ulRegTest1LoopCounter;
+
+ /* Check that the register test 2 task is still running. */
+ if( ulLastRegTest2Value == ulRegTest2LoopCounter )
+ {
+ pcStatusMessage = "ERROR: Register test 2.\r\n";
+ }
+ ulLastRegTest2Value = ulRegTest2LoopCounter;
+
+ /* Write the status message to the UART. */
+ vSendString( pcStatusMessage );
+
+ /* If an error has been found then increase the LED toggle rate by
+ increasing the cycle frequency. */
+ if( pcStatusMessage != pcPassMessage )
+ {
+ 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 )
+ {
+ /* 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 task 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 )
+ {
+ /* 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 task will detect that the regtest loop counter is
+ not being incremented and flag an error. */
+ vTaskDelete( NULL );
+}
+/*-----------------------------------------------------------*/
+
+void vFullDemoTickHook( void )
+{
+ /* The full demo includes a software timer demo/test that requires
+ prodding periodically from the tick interrupt. */
+ vTimerPeriodicISRTests();
+
+ /* Call the periodic event group from ISR demo. */
+ vPeriodicEventGroupsProcessing();
+
+ /* Use task notifications from an interrupt. */
+ xNotifyTaskFromISR();
+
+ /* Writes to stream buffer byte by byte to test the stream buffer trigger
+ level functionality. */
+ vPeriodicStreamBufferProcessing();
+
+ /* Writes a string to a string buffer four bytes at a time to demonstrate
+ a stream being sent from an interrupt to a task. */
+ vBasicStreamBufferSendFromISR();
+
+ /* Called from vApplicationTickHook() when the project is configured to
+ build the full test/demo applications. */
+}
+/*-----------------------------------------------------------*/
+
diff --git a/FreeRTOS/Demo/RISC-V_RV32_SiFive_IAR/main.c b/FreeRTOS/Demo/RISC-V_RV32_SiFive_IAR/main.c
new file mode 100644
index 000000000..797a8267a
--- /dev/null
+++ b/FreeRTOS/Demo/RISC-V_RV32_SiFive_IAR/main.c
@@ -0,0 +1,222 @@
+/*
+ * FreeRTOS Kernel V10.2.1
+ * Copyright (C) 2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * http://www.FreeRTOS.org
+ * http://aws.amazon.com/freertos
+ *
+ * 1 tab == 4 spaces!
+ */
+
+/* FreeRTOS kernel includes. */
+#include
+#include
+
+/******************************************************************************
+ * This project provides two demo applications. A simple blinky style project,
+ * and a more comprehensive test and demo application. The
+ * mainCREATE_SIMPLE_BLINKY_DEMO_ONLY setting (defined in this file) is used to
+ * select between the two. The simply blinky demo is implemented and described
+ * in main_blinky.c. The more comprehensive test and demo application is
+ * implemented and described in main_full.c.
+ *
+ * This file implements the code that is not demo specific, including the
+ * hardware setup and standard FreeRTOS hook functions.
+ *
+ * ENSURE TO READ THE DOCUMENTATION PAGE FOR THIS PORT AND DEMO APPLICATION ON
+ * THE http://www.FreeRTOS.org WEB SITE FOR FULL INFORMATION ON USING THIS DEMO
+ * APPLICATION, AND ITS ASSOCIATE FreeRTOS ARCHITECTURE PORT!
+ *
+ */
+
+/* UART hardware constants. */
+#define mainUART_BASE_ADDRESS ( *( volatile uint32_t * ) 0x20000000UL )
+#define mainUART_TX_DATA 0x00
+#define mainUART_TX_CTRL 0x08
+#define mainUART_RX_CTRL 0x0c
+#define mainUART_CLOCK_DIV 0x18
+#define mainUART_TX_ENABLE_BIT (1UL << 0UL)
+#define mainUART_RX_ENABLE_BIT (1UL << 0UL)
+#define mainUART_TX_FULL_BIT (1UL << 31UL)
+#define mainUART_REGISTER( offset ) ( ( mainUART_BASE_ADDRESS + offset ) )
+#define mainUART_REGISTER_WORD( offset ) ( *( ( uint32_t * ) mainUART_REGISTER( offset ) ) )
+
+
+/* Set mainCREATE_SIMPLE_BLINKY_DEMO_ONLY to one to run the simple blinky demo,
+or 0 to run the more comprehensive test and demo application. */
+#define mainCREATE_SIMPLE_BLINKY_DEMO_ONLY 0
+
+/*
+ * main_blinky() is used when mainCREATE_SIMPLE_BLINKY_DEMO_ONLY is set to 1.
+ * main_full() is used when mainCREATE_SIMPLE_BLINKY_DEMO_ONLY is set to 0.
+ */
+#if mainCREATE_SIMPLE_BLINKY_DEMO_ONLY == 1
+ extern void main_blinky( void );
+#else
+ extern void main_full( void );
+#endif /* #if mainCREATE_SIMPLE_BLINKY_DEMO_ONLY == 1 */
+
+/* Prototypes for the standard FreeRTOS callback/hook functions implemented
+within this file. See https://www.freertos.org/a00016.html */
+void vApplicationMallocFailedHook( void );
+void vApplicationIdleHook( void );
+void vApplicationStackOverflowHook( TaskHandle_t pxTask, char *pcTaskName );
+void vApplicationTickHook( void );
+
+/* Prepare hardware to run the demo. */
+static void prvSetupHardware( void );
+
+/* Send a message to the UART initialised in prvSetupHardware. */
+void vSendString( const char * const pcString );
+
+/*-----------------------------------------------------------*/
+
+int main( void )
+{
+ prvSetupHardware();
+
+ /* The mainCREATE_SIMPLE_BLINKY_DEMO_ONLY setting is described at the top
+ of this file. */
+ #if( mainCREATE_SIMPLE_BLINKY_DEMO_ONLY == 1 )
+ {
+ main_blinky();
+ }
+ #else
+ {
+ main_full();
+ }
+ #endif
+}
+/*-----------------------------------------------------------*/
+
+static void prvSetupHardware( void )
+{
+const unsigned long clock_rate = 66000000, baud_rate = 115200;
+
+ /* Initialise the UART. */
+ mainUART_REGISTER_WORD( mainUART_CLOCK_DIV ) = clock_rate / baud_rate - 1;
+ mainUART_REGISTER_WORD( mainUART_TX_CTRL ) |= mainUART_TX_ENABLE_BIT;
+ mainUART_REGISTER_WORD( mainUART_RX_CTRL ) |= mainUART_RX_ENABLE_BIT;
+}
+/*-----------------------------------------------------------*/
+
+void vToggleLED( void )
+{
+static uint32_t ulLEDState = 0;
+
+ ulLEDState = !ulLEDState;
+}
+/*-----------------------------------------------------------*/
+
+void vSendString( const char * const pcString )
+{
+uint32_t ulIndex = 0;
+
+ while( pcString[ ulIndex ] != 0x00 )
+ {
+ while( ( mainUART_REGISTER_WORD( mainUART_TX_DATA ) & mainUART_TX_FULL_BIT ) != 0UL );
+ mainUART_REGISTER_WORD(mainUART_TX_DATA) = pcString[ ulIndex ];
+ ulIndex++;
+ }
+}
+/*-----------------------------------------------------------*/
+
+void vApplicationMallocFailedHook( void )
+{
+ /* vApplicationMallocFailedHook() will only be called if
+ configUSE_MALLOC_FAILED_HOOK is set to 1 in FreeRTOSConfig.h. It is a hook
+ function that will get called if a call to pvPortMalloc() fails.
+ pvPortMalloc() is called internally by the kernel whenever a task, queue,
+ timer or semaphore is created. It is also called by various parts of the
+ demo application. If heap_1.c or heap_2.c are used, then the size of the
+ heap available to pvPortMalloc() is defined by configTOTAL_HEAP_SIZE in
+ FreeRTOSConfig.h, and the xPortGetFreeHeapSize() API function can be used
+ to query the size of free heap space that remains (although it does not
+ provide information on how the remaining heap might be fragmented). */
+ taskDISABLE_INTERRUPTS();
+ __asm volatile( "ebreak" );
+ for( ;; );
+}
+/*-----------------------------------------------------------*/
+
+void vApplicationIdleHook( void )
+{
+ /* vApplicationIdleHook() will only be called if configUSE_IDLE_HOOK is set
+ to 1 in FreeRTOSConfig.h. It will be called on each iteration of the idle
+ task. It is essential that code added to this hook function never attempts
+ to block in any way (for example, call xQueueReceive() with a block time
+ specified, or call vTaskDelay()). If the application makes use of the
+ vTaskDelete() API function (as this demo application does) then it is also
+ important that vApplicationIdleHook() is permitted to return to its calling
+ function, because it is the responsibility of the idle task to clean up
+ memory allocated by the kernel to any task that has since been deleted. */
+}
+/*-----------------------------------------------------------*/
+
+void vApplicationStackOverflowHook( TaskHandle_t pxTask, char *pcTaskName )
+{
+ ( void ) pcTaskName;
+ ( void ) pxTask;
+
+ /* Run time stack overflow checking is performed if
+ configCHECK_FOR_STACK_OVERFLOW is defined to 1 or 2. This hook
+ function is called if a stack overflow is detected. */
+ taskDISABLE_INTERRUPTS();
+ __asm volatile( "ebreak" );
+ for( ;; );
+}
+/*-----------------------------------------------------------*/
+
+void vApplicationTickHook( void )
+{
+ /* The tests in the full demo expect some interaction with interrupts. */
+ #if( mainCREATE_SIMPLE_BLINKY_DEMO_ONLY != 1 )
+ {
+ extern void vFullDemoTickHook( void );
+ vFullDemoTickHook();
+ }
+ #endif
+}
+/*-----------------------------------------------------------*/
+
+/* Called from the kernel's port layer to handle device specific external
+interrupts. */
+void vApplicationHandleTrap( uint32_t mcause )
+{
+ /* Not implemented yet. */
+ configASSERT( mcause == 0 );
+#warning vApplicationHandleTrap not implemented.
+#if 0
+uint32_t ulInterruptNumber;
+typedef void ( * irq_handler_t )( void );
+extern const irq_handler_t isrTable[];
+
+ ulInterruptNumber = PLIC->TARGET[ 0 ].CLAIM_COMPLETE;
+
+ /* Read handler from table. */
+ /* Call handler. */
+
+ PLIC->TARGET[ 0 ].CLAIM_COMPLETE = ulInterruptNumber;
+#endif
+}
+
+
+
+
diff --git a/FreeRTOS/Demo/RISC-V_RV32_SiFive_IAR/main_blinky/main_blinky.c b/FreeRTOS/Demo/RISC-V_RV32_SiFive_IAR/main_blinky/main_blinky.c
new file mode 100644
index 000000000..a1d1edb0b
--- /dev/null
+++ b/FreeRTOS/Demo/RISC-V_RV32_SiFive_IAR/main_blinky/main_blinky.c
@@ -0,0 +1,205 @@
+/*
+ * FreeRTOS Kernel V10.2.1
+ * Copyright (C) 2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * http://www.FreeRTOS.org
+ * http://aws.amazon.com/freertos
+ *
+ * 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_SIMPLE_BLINKY_DEMO_ONLY setting in main.c is used to select
+ * between the two. See the notes on using mainCREATE_SIMPLE_BLINKY_DEMO_ONLY
+ * in main.c. This file implements the simply blinky style version.
+ *
+ * NOTE 2: This file only contains the source code that is specific to the
+ * basic demo. Generic functions, such FreeRTOS hook functions, and functions
+ * required to configure the hardware are defined in main.c.
+ ******************************************************************************
+ *
+ * main_blinky() creates one queue, and two tasks. It then starts the
+ * scheduler.
+ *
+ * The Queue Send Task:
+ * The queue send task is implemented by the prvQueueSendTask() function in
+ * this file. prvQueueSendTask() sits in a loop that causes it to repeatedly
+ * block for 1000 milliseconds, before sending the value 100 to the queue that
+ * was created within main_blinky(). Once the value is sent, the task loops
+ * back around to block for another 1000 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
+ * 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, writes 'Blink' to the UART
+ * (the UART is used in place of the LED to allow easy execution in QEMU). 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
+ * send task writes to the queue every 1000 milliseconds, the queue receive
+ * task leaves the Blocked state every 1000 milliseconds, and therefore toggles
+ * the LED every 200 milliseconds.
+ */
+
+/* Standard includes. */
+#include
+#include
+
+/* Kernel includes. */
+#include "FreeRTOS.h"
+#include "task.h"
+#include "queue.h"
+
+/* Priorities used by the tasks. */
+#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 pdMS_TO_TICKS() macro. */
+#define mainQUEUE_SEND_FREQUENCY_MS pdMS_TO_TICKS( 1000 )
+
+/* The maximum number items the queue can hold. The priority of the receiving
+task is above the priority of the sending task, so the receiving task will
+preempt the sending task and remove the queue items each time the sending task
+writes to the queue. Therefore the queue will never have more than one item in
+it at any time, and even with a queue length of 1, the sending task will never
+find the queue full. */
+#define mainQUEUE_LENGTH ( 1 )
+
+/*-----------------------------------------------------------*/
+
+/*
+ * Called by main when mainCREATE_SIMPLE_BLINKY_DEMO_ONLY is set to 1 in
+ * main.c.
+ */
+void main_blinky( void );
+
+/*
+ * 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 * 2U, /* 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 * 2U, 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 insufficient FreeRTOS heap memory available for the Idle and/or
+ timer tasks to be created. See the memory management section on the
+ FreeRTOS web site for more details on the FreeRTOS heap
+ http://www.freertos.org/a00111.html. */
+ for( ;; );
+}
+/*-----------------------------------------------------------*/
+
+static void prvQueueSendTask( void *pvParameters )
+{
+TickType_t xNextWakeTime;
+const unsigned long ulValueToSend = 100UL;
+BaseType_t xReturned;
+
+ /* 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. */
+ xReturned = xQueueSend( xQueue, &ulValueToSend, 0U );
+ configASSERT( xReturned == pdPASS );
+ }
+}
+/*-----------------------------------------------------------*/
+
+static void prvQueueReceiveTask( void *pvParameters )
+{
+unsigned long ulReceivedValue;
+const unsigned long ulExpectedValue = 100UL;
+const char * const pcPassMessage = "Blink\r\n";
+const char * const pcFailMessage = "Unexpected value received\r\n";
+extern void vSendString( const char * const pcString );
+extern void vToggleLED( void );
+
+ /* 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 )
+ {
+ vSendString( pcPassMessage );
+ vToggleLED();
+ ulReceivedValue = 0U;
+ }
+ else
+ {
+ vSendString( pcFailMessage );
+ }
+ }
+}
+/*-----------------------------------------------------------*/
+
diff --git a/FreeRTOS/Demo/RISC-V_RV32_SiFive_IAR/settings/RTOSDemo.Debug.cspy.bat b/FreeRTOS/Demo/RISC-V_RV32_SiFive_IAR/settings/RTOSDemo.Debug.cspy.bat
new file mode 100644
index 000000000..1e003ddd2
--- /dev/null
+++ b/FreeRTOS/Demo/RISC-V_RV32_SiFive_IAR/settings/RTOSDemo.Debug.cspy.bat
@@ -0,0 +1,40 @@
+@REM This batch file has been generated by the IAR Embedded Workbench
+@REM C-SPY Debugger, as an aid to preparing a command line for running
+@REM the cspybat command line utility using the appropriate settings.
+@REM
+@REM Note that this file is generated every time a new debug session
+@REM is initialized, so you may want to move or rename the file before
+@REM making changes.
+@REM
+@REM You can launch cspybat by typing the name of this batch file followed
+@REM by the name of the debug file (usually an ELF/DWARF or UBROF file).
+@REM
+@REM Read about available command line parameters in the C-SPY Debugging
+@REM Guide. Hints about additional command line parameters that may be
+@REM useful in specific cases:
+@REM --download_only Downloads a code image without starting a debug
+@REM session afterwards.
+@REM --silent Omits the sign-on message.
+@REM --timeout Limits the maximum allowed execution time.
+@REM
+
+
+@echo off
+
+if not "%~1" == "" goto debugFile
+
+@echo on
+
+"C:\devtools\IAR Systems\Embedded Workbench 8.3\common\bin\cspybat" -f "C:\Users\ribarry\Dev\FreeRTOS\WorkingCopy\FreeRTOS\Demo\RISC-V_RV32_SiFive_IAR\settings\RTOSDemo.Debug.general.xcl" --backend -f "C:\Users\ribarry\Dev\FreeRTOS\WorkingCopy\FreeRTOS\Demo\RISC-V_RV32_SiFive_IAR\settings\RTOSDemo.Debug.driver.xcl"
+
+@echo off
+goto end
+
+:debugFile
+
+@echo on
+
+"C:\devtools\IAR Systems\Embedded Workbench 8.3\common\bin\cspybat" -f "C:\Users\ribarry\Dev\FreeRTOS\WorkingCopy\FreeRTOS\Demo\RISC-V_RV32_SiFive_IAR\settings\RTOSDemo.Debug.general.xcl" "--debug_file=%~1" --backend -f "C:\Users\ribarry\Dev\FreeRTOS\WorkingCopy\FreeRTOS\Demo\RISC-V_RV32_SiFive_IAR\settings\RTOSDemo.Debug.driver.xcl"
+
+@echo off
+:end
\ No newline at end of file
diff --git a/FreeRTOS/Demo/RISC-V_RV32_SiFive_IAR/settings/RTOSDemo.Debug.cspy.ps1 b/FreeRTOS/Demo/RISC-V_RV32_SiFive_IAR/settings/RTOSDemo.Debug.cspy.ps1
new file mode 100644
index 000000000..f4ced075b
--- /dev/null
+++ b/FreeRTOS/Demo/RISC-V_RV32_SiFive_IAR/settings/RTOSDemo.Debug.cspy.ps1
@@ -0,0 +1,31 @@
+param([String]$debugfile = "");
+
+# This powershell file has been generated by the IAR Embedded Workbench
+# C - SPY Debugger, as an aid to preparing a command line for running
+# the cspybat command line utility using the appropriate settings.
+#
+# Note that this file is generated every time a new debug session
+# is initialized, so you may want to move or rename the file before
+# making changes.
+#
+# You can launch cspybat by typing Powershell.exe -File followed by the name of this batch file, followed
+# by the name of the debug file (usually an ELF / DWARF or UBROF file).
+#
+# Read about available command line parameters in the C - SPY Debugging
+# Guide. Hints about additional command line parameters that may be
+# useful in specific cases :
+# --download_only Downloads a code image without starting a debug
+# session afterwards.
+# --silent Omits the sign - on message.
+# --timeout Limits the maximum allowed execution time.
+#
+
+
+if ($debugfile -eq "")
+{
+& "C:\devtools\IAR Systems\Embedded Workbench 8.3\common\bin\cspybat" -f "C:\Users\ribarry\Dev\FreeRTOS\WorkingCopy\FreeRTOS\Demo\RISC-V_RV32_SiFive_IAR\settings\RTOSDemo.Debug.general.xcl" --backend -f "C:\Users\ribarry\Dev\FreeRTOS\WorkingCopy\FreeRTOS\Demo\RISC-V_RV32_SiFive_IAR\settings\RTOSDemo.Debug.driver.xcl"
+}
+else
+{
+& "C:\devtools\IAR Systems\Embedded Workbench 8.3\common\bin\cspybat" -f "C:\Users\ribarry\Dev\FreeRTOS\WorkingCopy\FreeRTOS\Demo\RISC-V_RV32_SiFive_IAR\settings\RTOSDemo.Debug.general.xcl" --debug_file=$debugfile --backend -f "C:\Users\ribarry\Dev\FreeRTOS\WorkingCopy\FreeRTOS\Demo\RISC-V_RV32_SiFive_IAR\settings\RTOSDemo.Debug.driver.xcl"
+}
diff --git a/FreeRTOS/Demo/RISC-V_RV32_SiFive_IAR/settings/RTOSDemo.Debug.driver.xcl b/FreeRTOS/Demo/RISC-V_RV32_SiFive_IAR/settings/RTOSDemo.Debug.driver.xcl
new file mode 100644
index 000000000..c2e69763e
--- /dev/null
+++ b/FreeRTOS/Demo/RISC-V_RV32_SiFive_IAR/settings/RTOSDemo.Debug.driver.xcl
@@ -0,0 +1,13 @@
+"--core=RV32IMAC"
+
+"-p"
+
+"C:\devtools\IAR Systems\Embedded Workbench 8.3\riscv\config\debugger\SiFive\e31arty35t.ddf"
+
+"-d"
+
+"sim"
+
+
+
+
diff --git a/FreeRTOS/Demo/RISC-V_RV32_SiFive_IAR/settings/RTOSDemo.Debug.general.xcl b/FreeRTOS/Demo/RISC-V_RV32_SiFive_IAR/settings/RTOSDemo.Debug.general.xcl
new file mode 100644
index 000000000..b9d0ead7c
--- /dev/null
+++ b/FreeRTOS/Demo/RISC-V_RV32_SiFive_IAR/settings/RTOSDemo.Debug.general.xcl
@@ -0,0 +1,11 @@
+"C:\devtools\IAR Systems\Embedded Workbench 8.3\riscv\bin\riscvproc.dll"
+
+"C:\devtools\IAR Systems\Embedded Workbench 8.3\riscv\bin\riscvsim.dll"
+
+"C:\Users\ribarry\Dev\FreeRTOS\WorkingCopy\FreeRTOS\Demo\RISC-V_RV32_SiFive_IAR\Debug\Exe\RTOSDemo.out"
+
+--plugin="C:\devtools\IAR Systems\Embedded Workbench 8.3\riscv\bin\riscvbat.dll"
+
+
+
+
diff --git a/FreeRTOS/Demo/RISC-V_RV32_SiFive_IAR/settings/RTOSDemo.dbgdt b/FreeRTOS/Demo/RISC-V_RV32_SiFive_IAR/settings/RTOSDemo.dbgdt
new file mode 100644
index 000000000..d009a33ca
--- /dev/null
+++ b/FreeRTOS/Demo/RISC-V_RV32_SiFive_IAR/settings/RTOSDemo.dbgdt
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+
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