--- /dev/null
+/*\r
+ FreeRTOS V6.0.5 - Copyright (C) 2010 Real Time Engineers Ltd.\r
+\r
+ ***************************************************************************\r
+ * *\r
+ * If you are: *\r
+ * *\r
+ * + New to FreeRTOS, *\r
+ * + Wanting to learn FreeRTOS or multitasking in general quickly *\r
+ * + Looking for basic training, *\r
+ * + Wanting to improve your FreeRTOS skills and productivity *\r
+ * *\r
+ * then take a look at the FreeRTOS eBook *\r
+ * *\r
+ * "Using the FreeRTOS Real Time Kernel - a Practical Guide" *\r
+ * http://www.FreeRTOS.org/Documentation *\r
+ * *\r
+ * A pdf reference manual is also available. Both are usually delivered *\r
+ * to your inbox within 20 minutes to two hours when purchased between 8am *\r
+ * and 8pm GMT (although please allow up to 24 hours in case of *\r
+ * exceptional circumstances). Thank you for your support! *\r
+ * *\r
+ ***************************************************************************\r
+\r
+ This file is part of the FreeRTOS distribution.\r
+\r
+ FreeRTOS is free software; you can redistribute it and/or modify it under\r
+ the terms of the GNU General Public License (version 2) as published by the\r
+ Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
+ ***NOTE*** The exception to the GPL is included to allow you to distribute\r
+ a combined work that includes FreeRTOS without being obliged to provide the\r
+ source code for proprietary components outside of the FreeRTOS kernel.\r
+ FreeRTOS is distributed in the hope that it will be useful, but WITHOUT\r
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or\r
+ FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for\r
+ more details. You should have received a copy of the GNU General Public\r
+ License and the FreeRTOS license exception along with FreeRTOS; if not it\r
+ can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
+ by writing to Richard Barry, contact details for whom are available on the\r
+ FreeRTOS WEB site.\r
+\r
+ 1 tab == 4 spaces!\r
+\r
+ http://www.FreeRTOS.org - Documentation, latest information, license and\r
+ contact details.\r
+\r
+ http://www.SafeRTOS.com - A version that is certified for use in safety\r
+ critical systems.\r
+\r
+ http://www.OpenRTOS.com - Commercial support, development, porting,\r
+ licensing and training services.\r
+*/\r
+\r
+#include "FreeRTOS.h"\r
+#include "task.h"\r
+\r
+/*\r
+ * Two test tasks that fill the CPU registers with known values before\r
+ * continuously looping round checking that each register still contains its\r
+ * expected value. Both tasks use a separate set of values, with an incorrect\r
+ * value being found at any time being indicative of an error in the context\r
+ * switch mechanism. One of the tasks uses a yield instruction to increase the\r
+ * test coverage. The nature of these tasks necessitates that they are written\r
+ * in assembly code.\r
+ */\r
+static void vRegTest1( void *pvParameters );\r
+static void vRegTest2( void *pvParameters );\r
+\r
+/* Counters used to ensure the tasks are still running. */\r
+static volatile unsigned long ulRegTest1Counter = 0UL, ulRegTest2Counter = 0UL;\r
+\r
+/*-----------------------------------------------------------*/\r
+\r
+void vStartRegTestTasks( void )\r
+{\r
+ xTaskCreate( vRegTest1, ( signed char * ) "RTest1", configMINIMAL_STACK_SIZE, NULL, tskIDLE_PRIORITY, NULL );\r
+// xTaskCreate( vRegTest2, ( signed char * ) "RTest2", configMINIMAL_STACK_SIZE, NULL, tskIDLE_PRIORITY, NULL );\r
+}\r
+/*-----------------------------------------------------------*/\r
+\r
+static void vRegTest1( void *pvParameters )\r
+{\r
+ __asm__ __volatile__\r
+ (\r
+ /* Fill the registers with known values. */\r
+ " mov r0, 0 \n"\r
+ " mov r1, 1 \n"\r
+ " mov r2, 2 \n"\r
+ " mov r3, 3 \n"\r
+ " mov r4, 4 \n"\r
+ " mov r5, 5 \n"\r
+ " mov r6, 6 \n" /* r7 is the frame pointer. */\r
+ " mov r10, 10 \n"\r
+ " mov r11, 11 \n"\r
+ " mov r12, 12 \n" /* r13 is the stack pointer, and r14 the link register. */\r
+ " \n"\r
+ "reg_check_loop_1: \n"\r
+ " \n"\r
+ " mov r8, 8 \n" /* Reset the registers that are likely to be clobbered when incrementing the check variable. */\r
+ " mov r9, 9 \n"\r
+ " \n"\r
+ " cp.w r0, 0 \n"\r
+ " brne reg_check_error_1 \n"\r
+ " cp.w r1, 1 \n"\r
+ " brne reg_check_error_1 \n"\r
+ " cp.w r2, 2 \n" /* Check that each register still contains the expected value, jump to an infinite loop if an error is found. */\r
+ " brne reg_check_error_1 \n"\r
+ " cp.w r3, 3 \n"\r
+ " brne reg_check_error_1 \n"\r
+ " cp.w r4, 4 \n"\r
+ " brne reg_check_error_1 \n"\r
+ " cp.w r5, 5 \n"\r
+ " brne reg_check_error_1 \n"\r
+ " cp.w r6, 6 \n"\r
+ " brne reg_check_error_1 \n"\r
+ " cp.w r8, 8 \n"\r
+ " brne reg_check_error_1 \n"\r
+ " cp.w r9, 9 \n"\r
+ " brne reg_check_error_1 \n"\r
+ " cp.w r10, 10 \n"\r
+ " brne reg_check_error_1 \n"\r
+ " cp.w r11, 11 \n"\r
+ " brne reg_check_error_1 \n"\r
+ " cp.w r12, 12 \n"\r
+ " brne reg_check_error_1 \n"\r
+ " \n"\r
+ " ld.w r8, ulRegTest1CounterConst \n"\r
+ " ld.w r8, r8[ 0x00 ] \n"\r
+ " sub r9, r8, -1 \n"\r
+ " ld.w r8, ulRegTest1CounterConst \n"\r
+ " st.w r8[ 0x00 ], r9 \n"\r
+ " \n"\r
+ " bral reg_check_loop_1 \n"\r
+ " \n"\r
+ "reg_check_error_1: \n"\r
+ " bral . \n" /* If an error is discovered, just loop here so the check variable stops incrementing. */\r
+ " \n"\r
+ "ulRegTest1CounterConst: .word ulRegTest1Counter \n"\r
+ );\r
+}\r
+\r
+/*-----------------------------------------------------------*/\r
+\r
+#if 0\r
+static void vRegTest2( void *pvParameters )\r
+{\r
+ __asm volatile\r
+ (\r
+ " mov r2, #0x12 \n" /* Fill the registers with known values, r0 is always 0 and r1 is the stack pointer. */\r
+ " mov r3, #0x13 \n"\r
+ " mov r4, #0x14 \n"\r
+ " mov r5, #0x15 \n"\r
+ " mov r6, #0x16 \n"\r
+ " mov r7, #0x17 \n"\r
+ " mov r8, #0x18 \n"\r
+ " mov r9, #0x19 \n"\r
+ " mov r10, #0x1a \n"\r
+ " mov r11, #0x1b \n"\r
+ " mov r12, #0x1c \n"\r
+ " mov r13, #0x1d \n"\r
+ " mov r14, #0x1e \n"\r
+ " mov r15, #0x1f \n"\r
+ " \n"\r
+ "reg_check_loop_2: \n"\r
+ " cp.w r2, #0x12 \n" /* Check that each register still contains the expected value, jump to an infinite loop if an error is found. */\r
+ " brne reg_check_error_2 \n"\r
+ " cp.w r3, #0x13 \n"\r
+ " brne reg_check_error_2 \n"\r
+ " cp.w r4, #0x14 \n"\r
+ " brne reg_check_error_2 \n"\r
+ " cp.w r5, #0x15 \n"\r
+ " brne reg_check_error_2 \n"\r
+ " cp.w r6, #0x16 \n"\r
+ " brne reg_check_error_2 \n"\r
+ " cp.w r7, #0x17 \n"\r
+ " brne reg_check_error_2 \n"\r
+ " cp.w r8, #0x18 \n"\r
+ " brne reg_check_error_2 \n"\r
+ " cp.w r9, #0x19 \n"\r
+ " brne reg_check_error_2 \n"\r
+ " cp.w r10, #0x1a \n"\r
+ " brne reg_check_error_2 \n"\r
+ " cp.w r11, #0x1b \n"\r
+ " brne reg_check_error_2 \n"\r
+ " cp.w r12, #0x1c \n"\r
+ " brne reg_check_error_2 \n"\r
+ " cp.w r13, #0x1d \n"\r
+ " brne reg_check_error_2 \n"\r
+ " cp.w r14, #0x1e \n"\r
+ " brne reg_check_error_2 \n"\r
+ " cp.w r15, #0x1f \n"\r
+ " brne reg_check_error_2 \n"\r
+ " \n"\r
+ " ld r2, [r0]+short(ulRegTest2Counter) \n" /* Increment the loop counter to show that this task is still running error free. */\r
+ " add r2, #1 \n"\r
+ " st r2, [r0]+short(ulRegTest2Counter) \n"\r
+ " mov r2, #0x12 \n"\r
+ " \n"\r
+ " bra.s reg_check_loop_2 \n" /* Do it all again. */\r
+ " \n"\r
+ "reg_check_error_2: \n"\r
+ "bra.s . \n"\r
+ );\r
+}\r
+/*-----------------------------------------------------------*/\r
+#endif\r
+\r
+portBASE_TYPE xAreRegTestTasksStillRunning( void )\r
+{\r
+static unsigned long ulLastCounter1 = 0UL, ulLastCounter2 = 0UL;\r
+long lReturn;\r
+\r
+ /* Check that both loop counters are still incrementing, indicating that\r
+ both reg test tasks are still running error free. */\r
+ if( ulLastCounter1 == ulRegTest1Counter )\r
+ {\r
+ lReturn = pdFAIL;\r
+ }\r
+// else if( ulLastCounter2 == ulRegTest2Counter )\r
+// {\r
+// lReturn = pdFAIL;\r
+// }\r
+ else\r
+ {\r
+ lReturn = pdPASS;\r
+ }\r
+\r
+ ulLastCounter1 = ulRegTest1Counter;\r
+ ulLastCounter2 = ulRegTest2Counter;\r
+\r
+ return lReturn;\r
+}\r
+\r
+\r
+\r
+\r
+\r
+\r
+\r
+\r
+\r
+\r
+\r
+\r
+\r
+\r
--- /dev/null
+/*\r
+ FreeRTOS V6.0.5 - Copyright (C) 2010 Real Time Engineers Ltd.\r
+\r
+ ***************************************************************************\r
+ * *\r
+ * If you are: *\r
+ * *\r
+ * + New to FreeRTOS, *\r
+ * + Wanting to learn FreeRTOS or multitasking in general quickly *\r
+ * + Looking for basic training, *\r
+ * + Wanting to improve your FreeRTOS skills and productivity *\r
+ * *\r
+ * then take a look at the FreeRTOS eBook *\r
+ * *\r
+ * "Using the FreeRTOS Real Time Kernel - a Practical Guide" *\r
+ * http://www.FreeRTOS.org/Documentation *\r
+ * *\r
+ * A pdf reference manual is also available. Both are usually delivered *\r
+ * to your inbox within 20 minutes to two hours when purchased between 8am *\r
+ * and 8pm GMT (although please allow up to 24 hours in case of *\r
+ * exceptional circumstances). Thank you for your support! *\r
+ * *\r
+ ***************************************************************************\r
+\r
+ This file is part of the FreeRTOS distribution.\r
+\r
+ FreeRTOS is free software; you can redistribute it and/or modify it under\r
+ the terms of the GNU General Public License (version 2) as published by the\r
+ Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
+ ***NOTE*** The exception to the GPL is included to allow you to distribute\r
+ a combined work that includes FreeRTOS without being obliged to provide the\r
+ source code for proprietary components outside of the FreeRTOS kernel.\r
+ FreeRTOS is distributed in the hope that it will be useful, but WITHOUT\r
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or\r
+ FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for\r
+ more details. You should have received a copy of the GNU General Public\r
+ License and the FreeRTOS license exception along with FreeRTOS; if not it\r
+ can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
+ by writing to Richard Barry, contact details for whom are available on the\r
+ FreeRTOS WEB site.\r
+\r
+ 1 tab == 4 spaces!\r
+\r
+ http://www.FreeRTOS.org - Documentation, latest information, license and\r
+ contact details.\r
+\r
+ http://www.SafeRTOS.com - A version that is certified for use in safety\r
+ critical systems.\r
+\r
+ http://www.OpenRTOS.com - Commercial support, development, porting,\r
+ licensing and training services.\r
+*/\r
+\r
+#ifndef REG_TEST_H\r
+#define REG_TEST_H\r
+\r
+void vStartRegTestTasks( void );\r
+portBASE_TYPE xAreRegTestTasksStillRunning( void );\r
+\r
+#endif\r
+\r
projects / freertos / commitdiff