{"id":1263,"date":"2024-10-26T15:20:11","date_gmt":"2024-10-26T07:20:11","guid":{"rendered":"https:\/\/aoofoo.com\/?p=1263"},"modified":"2024-10-30T19:24:41","modified_gmt":"2024-10-30T11:24:41","slug":"3-3-freertos%e7%a7%bb%e6%a4%8d","status":"publish","type":"post","link":"https:\/\/aoofoo.com\/index.php\/2024\/10\/26\/3-3-freertos%e7%a7%bb%e6%a4%8d\/","title":{"rendered":"3.3 FreeRTOS\u79fb\u690d\uff08\u6807\u51c6\u5e93\uff09"},"content":{"rendered":"

FreeRTOS\u6e90\u7801<\/h2>\n
\u8fdb\u5165FreeRTOS\u5b98\u7f51\u4e0b\u8f7d\u6587\u4ef6\uff1aFreeRTOS\u2122 – FreeRTOS\u2122<\/a><\/div><\/div>\n

\u4e0b\u8f7d -> FreeRTOS\u6587\u4ef6\u5939 -> Source\u6587\u4ef6\u5939 \uff1a<\/p>\n

\u6211\u4eec\u9700\u8981include\u6587\u4ef6\u5939\uff0c\u91cc\u9762\u5305\u542b\u4e86FreeRTOS\u7684\u5934\u6587\u4ef6\u3002<\/p>\n

\u6211\u4eec\u9700\u8981portable\u6587\u4ef6\u5939\uff0c\u91cc\u9762\u5305\u542b\u4e86FreeRTOS\u7684\u79fb\u690d\u6587\u4ef6\u3002<\/p>\n

\u6211\u4eec\u9700\u8981list.c\u3001queue.c\u3001tasks.c\u8fd9\u4e09\u4e2aC\u6587\u4ef6\uff0c\u5206\u522b\u662f\u5217\u8868\u3001\u961f\u5217\u548c\u4efb\u52a1\u76f8\u5173\u7684\u6587\u4ef6\u3002<\/p>\n

portable\u6587\u4ef6\u5939<\/h3>\n

FreeRTOS\u64cd\u4f5c\u7cfb\u7edf\u5f52\u6839\u5230\u5e95\u662f\u4e00\u4e2a\u8f6f\u4ef6\u5c42\u9762\u7684\u4e1c\u897f\uff0c\u90a3FreeRTOS\u662f\u5982\u4f55\u8ddf\u786c\u4ef6\u8054\u7cfb\u5728\u4e00\u8d77\u7684\u5462\uff1f<\/p>\n

\u548c\u786c\u4ef6\u8054\u7cfb\u5728\u4e00\u8d77\uff0c\u8bf4\u767d\u4e86\u5c31\u662f\u8f6f\u4ef6\u53ef\u4ee5\u64cd\u4f5c\u5bc4\u5b58\u5668\uff0cportable\u6587\u4ef6\u5939\u91cc\u9762\u7684\u4e1c\u897f\u5c31\u662f\u8fde\u63a5\u6865\u6881 \u3002<\/p>\n

\u6211\u4eec\u4f7f\u7528Keil\u5f00\u53d1\uff0c\u56e0\u6b64\u8fd9\u91cc\u53ea\u9700\u8981\u9009\u7528Keil\u7684\u79fb\u690d\u6587\u4ef6\uff0c\u6211\u4eec\u53ea\u9700\u8981portable\u6587\u4ef6\u5939\u4e2d\u7684\u4e09\u4e2a\uff1a<\/p>\n

\"\"<\/p>\n

FreeRTOS\u79fb\u690d<\/h2>\n

\"\"<\/p>\n

\u5de5\u7a0b\u6dfb\u52a0\u6e90\u7801<\/h3>\n

\u6211\u4eec\u5c06FreeRTOS\u4e2d\u7684\u4e0a\u8ff0\u6e90\u7801\uff0c\u5148\u6dfb\u52a0\u81f3\u6211\u4eec\u7684Keil5\u7684\u5de5\u7a0b\u4e2d(\u522b\u5fd8\u4e86\u5934\u6587\u4ef6\u8def\u5f84)\uff1a<\/p>\n

\"\"<\/p>\n

\u589e\u52a0\u914d\u7f6e\u6587\u4ef6<\/h3>\n

\u6211\u4eec\u4e4b\u524d\u8bf4\u4e86\uff0cFreeRTOS\u662f\u53ef\u4ee5\u88ab\u88c1\u526a\u7684\uff0c\u6709\u4e9b\u7528\u4e0d\u5230\u7684\u529f\u80fd\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e00\u4e9b\u5b8f\u5b9a\u4e49\uff0c\u7ed9\u4ed6\u53bb\u6389\u3002<\/p>\n

\u5728\u8fd9\u4e00\u6b65\uff0c\u6211\u4eec\u53ef\u4ee5\u76f4\u63a5\u7528\u5b98\u65b9Demo\u6587\u4ef6\u4e2d\u7684FreeRTOSConfig.h\u6587\u4ef6\uff0c\u4f60\u662f\u4ec0\u4e48\u578b\u53f7\u7684\u82af\u7247\uff0c\u5c31\u5728Demo\u91cc\u627e\u5bf9\u5e94\u7684\u6587\u4ef6\u5939\uff0c\u7136\u540e\u627e\u5230\u8fd9\u4e2aC\u6587\u4ef6\uff0c\u76f4\u63a5\u590d\u5236\u7c98\u8d34\uff0c\u76f4\u63a5\u62ff\u6765\u7528\u3002<\/p>\n

\u56e0\u4e3a\u662f\u521d\u5b66\u8005\uff0c\u6211\u4eec\u73b0\u5728\u80af\u5b9a\u770b\u4e0d\u61c2\u8fd9\u4e2aC\u6587\u4ef6\u91cc\u662f\u4ec0\u4e48\uff0c\u800c\u4e14\u8fd9\u4e2a\u6587\u4ef6\u662f\u6211\u4eec\u81ea\u5df1\u62ffDemo\u91cc\u9762\u7684\u6587\u4ef6\uff0c\u62a5\u9519\u4e86\u4e5f\u4e0d\u77e5\u9053\u4f1a\u600e\u4e48\u6539\uff0c\u6240\u4ee5\u5f53\u4f60\u4e0d\u77e5\u9053\u600e\u4e48\u529e\u7684\u65f6\u5019\uff0c\u5c31\u8981\u7f16\u8bd1\u4f60\u7684\u7a0b\u5e8f\uff0c\u770b\u4f60\u7684\u62a5\u9519\u5185\u5bb9\uff0c\u7136\u540e\u9488\u5bf9\u6027\u7684\u4fee\u6539\u914d\u7f6e\u6587\u4ef6\u3002<\/p>\n

<\/svg>\u4ec0\u4e48\u662f\u94a9\u5b50\u51fd\u6570\uff1f<\/div>
<\/p>\n

\u94a9\u5b50\u51fd\u6570\u662fFreeRTOS\u63d0\u4f9b\u7684\u7528\u6237\u81ea\u5b9a\u4e49\u51fd\u6570\uff0c\u7528\u4e8e\u5728\u7279\u5b9a\u4e8b\u4ef6\u53d1\u751f\u65f6\u6267\u884c\u7279\u5b9a\u64cd\u4f5c\u3002\u5b83\u4eec\u5141\u8bb8\u7528\u6237\u5728\u4e0d\u4fee\u6539\u5185\u6838\u4ee3\u7801\u7684\u60c5\u51b5\u4e0b\u6269\u5c55FreeRTOS\u7684\u529f\u80fd\u3002\u4ee5\u4e0b\u662f\u5e38\u7528\u7684\u94a9\u5b50\u51fd\u6570\uff1a<\/p>\n

1. **vApplicationTickHook**\uff1a
\n– \u6bcf\u4e2a\u7cfb\u7edf\u8282\u62cd\uff08tick\uff09\u53d1\u751f\u65f6\u8c03\u7528\u3002
\n– \u7528\u4e8e\u6267\u884c\u5468\u671f\u6027\u4efb\u52a1\u3002<\/p>\n

2. **vApplicationIdleHook**\uff1a
\n– \u7cfb\u7edf\u7a7a\u95f2\u65f6\u8c03\u7528\u3002
\n– \u5e38\u7528\u4e8e\u8fdb\u5165\u4f4e\u529f\u8017\u6a21\u5f0f\u3002<\/p>\n

3. **vApplicationStackOverflowHook**\uff1a
\n– \u5f53\u68c0\u6d4b\u5230\u4efb\u52a1\u5806\u6808\u6ea2\u51fa\u65f6\u8c03\u7528\u3002
\n– \u7528\u4e8e\u9519\u8bef\u5904\u7406\u548c\u8c03\u8bd5\u3002<\/p>\n

4. **vApplicationMallocFailedHook**\uff1a
\n– \u5f53\u5185\u5b58\u5206\u914d\u5931\u8d25\u65f6\u8c03\u7528\u3002
\n– \u7528\u4e8e\u5904\u7406\u5185\u5b58\u4e0d\u8db3\u7684\u60c5\u51b5\u3002<\/p>\n

\u8fd9\u4e9b\u94a9\u5b50\u51fd\u6570\u5e2e\u52a9\u5f00\u53d1\u8005\u5728\u5173\u952e\u4e8b\u4ef6\u4e0a\u63d2\u5165\u81ea\u5b9a\u4e49\u903b\u8f91\uff0c\u63d0\u9ad8\u7cfb\u7edf\u7684\u53ef\u8c03\u8bd5\u6027\u548c\u7a33\u5b9a\u6027\u3002<\/p>\n

<\/div><\/div><\/div>\n

 <\/p>\n

\u4e0b\u9762\u662f\u6700\u5e38\u89c1\u7684\u9519\u8bef\u6848\u4f8b\uff1a<\/p>\n

<\/svg><\/span>
<\/p>\n

Undefined symbol vApplicationTickHook (referred from tasks.o)<\/p>\n

Undefined symbol vApplicationStackOverflowHook (referred from tasks.o)<\/p>\n

Undefined symbol vApplicationIdleHook (referred from tasks.o)<\/p>\n

Undefined symbol vApplicationMallocFailedHook (referred from heap_4.o)<\/p>\n

\u8fd9\u662f\u56e0\u4e3a\u7f3a\u5c11\u94a9\u5b50\u51fd\u6570\u7684\u5b9a\u4e49\uff0c\u89e3\u51b3\u65b9\u6cd5\u5f88\u7b80\u5355\uff0c\u53ea\u9700\u8981\u5728FreeRTOSConfig.h\u4e2d\u627e\u5230\u5bf9\u5e94\u7684\u5b8f\u5b9a\u4e49\uff0c\u7136\u540e\u5c06\u5176\u7f6e0\u3002<\/p>\n

<\/div><\/div>\n

\u4fee\u6539SYSTEM\u6587\u4ef6<\/h3>\n

\u8fd9\u91cc\u6240\u8c13\u4fee\u6539system\u6587\u4ef6\uff08sys.c\u3001usart.c\u3001delay.c\uff09\uff0c\u65e0\u975e\u5c31\u662f\u5728\u81ea\u5df1\u5199\u7684\u6587\u4ef6\u91cc\u8fdb\u884c\u589e\u5220\u67e5\u6539\uff0c\u5982\u679c\u4f60\u7684\u7cfb\u7edf\u4e4b\u4e2d\u6ca1\u6709\u8fd9\u4e9b\u6587\u4ef6\uff0c\u5c31\u4e0d\u5fc5\u66f4\u6539\u3002\u5982\u679c\u4f60\u7684\u4ee3\u7801\u662f\u62f7\u8d1d\u522b\u4eba\u7684\u4ee3\u7801\uff0c\u6211\u63a8\u8350\u4f60\u5220\u9664\uff0c\u73b0\u5728\u4e5f\u7528\u4e0d\u5230\uff0c\u7b49\u7528\u5230\u4e86\u81ea\u5df1\u518d\u5199\uff0c\u8fd9\u6837\u66f4\u80fd\u953b\u70bc\u81ea\u8eab\u7684\u6280\u672f\u3002<\/p>\n

\u540c\u65f6\uff0c\u5728\u6211\u540e\u7eed\u7684\u6587\u7ae0\u4e2d\uff0c\u4f1a\u9010\u4e00\u8bb2\u89e3\u8981\u600e\u4e48\u5199\u8fd9\u4e9b\u6587\u4ef6\uff0c\u73b0\u5728\u8fd9\u91cc\u6211\u4eec\u7528\u4e0d\u5230\uff0c\u6211\u4eec\u53ea\u662f\u79fb\u690d\u4e00\u4e2a\u6700\u57fa\u7840\u7684\u5de5\u7a0b\u3002<\/p>\n

\u4fee\u6539\u4e2d\u65ad\u76f8\u5173\u6587\u4ef6<\/h3>\n

\u5728stm324xx_it.c\uff08\u4f60\u662f\u4ec0\u4e48\u82af\u7247\uff0c\u5c31\u627e\u81ea\u5df1\u5bf9\u5e94\u7684\u82af\u7247\u7684\u4e2d\u65ad\u6587\u4ef6\uff09\uff0c\u6ce8\u91ca\u6389\u4e0b\u9762\u8fd9\u4e09\u4e2a\u51fd\u6570,\u4e3a\u4ec0\u4e48\u8981\u6ce8\u91ca\u6389\u8fd9\u4e09\u4e2a\u51fd\u6570\uff1f<\/p>\n

\u56e0\u4e3a\u5728\u6211\u4eec\u521a\u624d\u79fb\u690d\u7684FreeRTOS\u4e2d\uff0c\u5df2\u7ecf\u5b9a\u4e49\u4e86\u8fd9\u4e09\u4e2a\u4e2d\u65ad\u51fd\u6570\uff0c\u8001\u7684\u5c31\u4e0d\u518d\u7528\u4e86\uff0c\u4e0d\u5220\u9664\u4f1a\u5bfc\u81f4\u91cd\u5b9a\u4e49\u3002<\/p>\n

\"\"<\/p>\n

\u6dfb\u52a0\u5e94\u7528\u7a0b\u5e8f<\/h3>\n

\u4e0a\u8ff0\u6b65\u9aa4\u6211\u4eec\u79fb\u690d\u5b8c\u6210\u4e4b\u540e\uff0c\u5c31\u9700\u8981\u8fd0\u884c\u4e00\u4e0b\u9762\u7684Demo\uff0c\u6765\u770b\u4e00\u4e0b\u662f\u5426\u6b63\u5e38\u3002<\/p>\n

#include \"FreeRTOS.h\"\r\n#include \"task.h\"\r\n#include \"stm32f4xx.h\"                  \/\/ Device header\r\n\r\n\/\/\u4efb\u52a1\u4f18\u5148\u7ea7\r\n#define START_TASK_PRIO\t\t1\r\n\/\/\u4efb\u52a1\u5806\u6808\u5927\u5c0f\t\r\n#define START_STK_SIZE \t\t128  \r\n\/\/\u4efb\u52a1\u53e5\u67c4\r\nTaskHandle_t StartTask_Handler;\r\n\/\/\u4efb\u52a1\u51fd\u6570\r\nvoid start_task(void *pvParameters);\r\n\r\n\/\/\u4efb\u52a1\u4f18\u5148\u7ea7\r\n#define LED0_TASK_PRIO\t\t2\r\n\/\/\u4efb\u52a1\u5806\u6808\u5927\u5c0f\t\r\n#define LED0_STK_SIZE \t\t50  \r\n\/\/\u4efb\u52a1\u53e5\u67c4\r\nTaskHandle_t LED0Task_Handler;\r\n\/\/\u4efb\u52a1\u51fd\u6570\r\nvoid led0_task(void *pvParameters);\r\n\r\n\/\/\u4efb\u52a1\u4f18\u5148\u7ea7\r\n#define LED1_TASK_PRIO\t\t3\r\n\/\/\u4efb\u52a1\u5806\u6808\u5927\u5c0f\t\r\n#define LED1_STK_SIZE \t\t50  \r\n\/\/\u4efb\u52a1\u53e5\u67c4\r\nTaskHandle_t LED1Task_Handler;\r\n\/\/\u4efb\u52a1\u51fd\u6570\r\nvoid led1_task(void *pvParameters);\r\n\r\n\r\n \r\n void GPIO_INIT()\r\n {\r\n    \/\/ \u4f7f\u80fdGPIOF\u65f6\u949f\r\n    RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOF, ENABLE);\r\n\r\n    \/\/ \u521d\u59cb\u5316\u7ed3\u6784\u4f53\r\n    GPIO_InitTypeDef GPIO_InitStructure;\r\n    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9 | GPIO_Pin_10; \/\/ \u66ff\u6362\u4e3a\u5b9e\u9645\u5f15\u811a\r\n    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT; \/\/ \u8f93\u51fa\u6a21\u5f0f\r\n    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; \/\/ \u901f\u5ea6\r\n    GPIO_InitStructure.GPIO_OType = GPIO_OType_PP; \/\/ \u63a8\u633d\u8f93\u51fa\r\n    GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL; \/\/ \u65e0\u4e0a\u62c9\u4e0b\u62c9\r\n    GPIO_Init(GPIOF, &GPIO_InitStructure);\t \r\n }\r\n \r\n void start_task(void *pvParameters)\r\n{\r\n\t taskENTER_CRITICAL();           \/\/\u8fdb\u5165\u4e34\u754c\u533a\r\n    \/\/\u521b\u5efaLED0\u4efb\u52a1\r\n    xTaskCreate((TaskFunction_t )led0_task,     \t\r\n                (const char*    )\"led0_task\",   \t\r\n                (uint16_t       )LED0_STK_SIZE, \r\n                (void*          )NULL,\t\t\t\t\r\n                (UBaseType_t    )LED0_TASK_PRIO,\t\r\n                (TaskHandle_t*  )&LED0Task_Handler); \r\n    \/\/\u521b\u5efaLED1\u4efb\u52a1\r\n    xTaskCreate((TaskFunction_t )led1_task,     \r\n                (const char*    )\"led1_task\",   \r\n                (uint16_t       )LED1_STK_SIZE, \r\n                (void*          )NULL,\r\n                (UBaseType_t    )LED1_TASK_PRIO,\r\n                (TaskHandle_t*  )&LED1Task_Handler);         \r\n    vTaskDelete(StartTask_Handler); \/\/\u5220\u9664\u5f00\u59cb\u4efb\u52a1\r\n    taskEXIT_CRITICAL();            \/\/\u9000\u51fa\u4e34\u754c\u533a\r\n}\r\n\/\/LED0 \u4efb\u52a1\u51fd\u6570\r\nvoid led0_task(void *pvParameters)\r\n{\r\n while(1)\r\n {\r\n\t  GPIO_SetBits(GPIOF,GPIO_Pin_9);\r\n\t  vTaskDelay(500);\r\n\t  GPIO_ResetBits(GPIOF,GPIO_Pin_9);\r\n\t  vTaskDelay(500);\r\n }\r\n}\r\n\/\/LED1 \u4efb\u52a1\u51fd\u6570\r\nvoid led1_task(void *pvParameters)\r\n{\r\n\twhile(1)\r\n\t{\r\n \t\tGPIO_ResetBits(GPIOF,GPIO_Pin_10);\r\n\t\tvTaskDelay(300);\r\n\t\tGPIO_SetBits(GPIOF,GPIO_Pin_10);\t\r\n\t\tvTaskDelay(300);\r\n\t}\r\n}\r\n int main(void)\r\n {\t\r\n\t \r\n\t NVIC_PriorityGroupConfig(NVIC_PriorityGroup_4);\/\/\u8bbe\u7f6e\u7cfb\u7edf\u4e2d\u65ad\u4f18\u5148\u7ea7\u5206\u7ec4 4 \r\n\t GPIO_INIT();\r\n\t \r\n\t \/\/\u521b\u5efa\u5f00\u59cb\u4efb\u52a1\r\n    xTaskCreate((TaskFunction_t )start_task,            \/\/\u4efb\u52a1\u51fd\u6570\r\n                (const char*    )\"start_task\",          \/\/\u4efb\u52a1\u540d\u79f0\r\n                (uint16_t       )START_STK_SIZE,        \/\/\u4efb\u52a1\u5806\u6808\u5927\u5c0f\r\n                (void*          )NULL,                  \/\/\u4f20\u9012\u7ed9\u4efb\u52a1\u51fd\u6570\u7684\u53c2\u6570\r\n                (UBaseType_t    )START_TASK_PRIO,       \/\/\u4efb\u52a1\u4f18\u5148\u7ea7\r\n                (TaskHandle_t*  )&StartTask_Handler);   \/\/\u4efb\u52a1\u53e5\u67c4              \r\n    vTaskStartScheduler();          \/\/\u5f00\u542f\u4efb\u52a1\u8c03\u5ea6\r\n\t\t \t  \r\n}<\/code><\/pre>\n
\u95ee\u9898\u4e0e\u89e3\u51b3<\/h3>\n
\u5728\u6211\u79fb\u690dFreeRTOS\u6210\u529f\u540e\uff0c\u8fd0\u884c\u4e86Demo\u7a0b\u5e8f\uff0cLED\u95ea\u70c1\uff0c\u4f46\u662f\u51fa\u73b0\u4e86\u4e00\u4e2a\u95ee\u9898\uff0c\u90a3\u5c31\u662f\u95ea\u70c1\u9891\u7387\u8fc7\u6162\uff0c\u4e0d\u662fFreeRTOS\u8bbe\u7f6e\u76841s\uff0c\u4e0b\u9762\u6211\u7ed9\u51fa\u4e24\u4e2a\u89e3\u51b3\u65b9\u6cd5\uff1a<\/p>\n
\u95ea\u70c1\u95ee\u9898\uff0c\u5c31\u76f4\u63a5\u5b9a\u4f4d\u5230\u4e86\u662f\u65f6\u949f\u7684\u95ee\u9898\uff0c\u5f53\u786e\u4fdd\u5728FreeRTOSConfig.h\u6587\u4ef6\u4e2d\uff1a<\/p>\n
#define configTICK_RATE_HZ ( ( TickType_t ) 1000 )<\/code><\/p>\n
\u786e\u4fdd\u8fd9\u4e2a\u5b8f\u5b9a\u4e49\u662f1000\uff0c\u4e0d\u5efa\u8bae\u901a\u8fc7\u4fee\u6539 configTICK_RATE_HZ \u6765\u8c03\u6574\u4efb\u52a1\u7684\u5ef6\u65f6\uff0c\u8fd9\u662f\u6781\u5176\u4e0d\u89c4\u8303\u7684<\/strong><\/span>\u505a\u6cd5\uff01<\/p>\n
configTICK_RATE_HZ \u662f FreeRTOS \u4e2d\u7684\u4e00\u4e2a\u914d\u7f6e\u9879\uff0c\u8868\u793a\u7cfb\u7edf\u7684\u65f6\u949f\u8282\u62cd\u9891\u7387\uff0c\u5373\u6bcf\u79d2\u4ea7\u751f\u7684\u65f6\u949f\u8282\u62cd\uff08Tick\uff09\u7684\u6b21\u6570\u3002 \u5355\u4f4d\u662fHz\uff08\u8d6b\u5179\uff09\uff0c\u5373\u6bcf\u79d2\u7684\u6b21\u6570\u3002<\/p>\n
\u5982\u679c\u8fd9\u91cc\u6211\u4eec\u786e\u5b9e\u662f1000\uff0c\u90a3\u4e48\u53ef\u4ee5\u80af\u5b9a\uff0c\u662f\u7cfb\u7edf\u65f6\u949f\u7684\u95ee\u9898\u4e86\uff0c\u67e5\u770b\u7cfb\u7edf\u65f6\u949f\u7684\u4ee3\u7801\uff1a<\/p>\n
\u67e5\u770bSystemInit()\u51fd\u6570\uff0c\u627e\u5230SetSysClock()\uff0c\u5bf9SetSysClock()\u51fd\u6570\u8fdb\u884c\u66ff\u6362\u6216\u8005\u4fee\u6539\uff0c\u4e0b\u9762\u662f\u4e24\u79cd\u89e3\u51b3\u65b9\u6cd5\uff1a<\/p>\n
\u65b9\u6cd51\uff1a\u5bf9SetSysClock()\u51fd\u6570\u8fdb\u884c\u66f4\u6539<\/span>\uff1a<\/strong><\/p>\n
\u5c06\u5b8f\u5b9a\u4e49\u66f4\u6539\u4e3a\u4e0b\u65b9\u7684\u53c2\u6570\uff0c\u5373\u53ef\u4fee\u6539\u6b63\u786e\u7684\u7cfb\u7edf\u65f6\u949f\u3002<\/p>\n
#define PLL_M      8\r\n#define PLL_N      336\r\n#define PLL_P      2\r\n#define PLL_Q      7<\/code><\/pre>\n
 <\/p>\n
\u65b9\u6cd52\uff1a\u5bf9SetSysClock()\u51fd\u6570\u8fdb\u884c\u66ff\u6362<\/span>\uff1a<\/strong><\/p>\n
\u76f4\u63a5\u6e05\u7a7aSetSysClock()\u51fd\u6570\u4e2d\u7684\u5185\u5bb9\uff0c\u7f6e\u6362\u6210\u4ee5\u4e0b\u51fd\u6570\uff08\u6211\u7684\u662fSTM32F40X\u7cfb\u5217\uff0c\u4e0d\u662f\u540c\u4e00\u7cfb\u5217\u7684\uff0c\u6ce8\u610f\u4fee\u6539\u53c2\u6570\uff09\uff1a<\/p>\n
void SetSysClock(void)\r\n{\r\n    \/* 1. \u542f\u7528 HSE *\/\r\n    RCC_HSEConfig(RCC_HSE_ON);\r\n    if (RCC_WaitForHSEStartUp() == SUCCESS)\r\n    {\r\n        \/* 2. \u8bbe\u7f6e\u7535\u6e90\u8c03\u8282\u5668\u7535\u538b\u8f93\u51fa\u7ea7\u522b\uff0c\u4ee5\u9002\u5e94\u66f4\u9ad8\u7684\u7cfb\u7edf\u9891\u7387 *\/\r\n        RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE);\r\n        PWR_MainRegulatorModeConfig(PWR_Regulator_Voltage_Scale1);\r\n\r\n        \/* 3. \u914d\u7f6e Flash \u6240\u9700\u7684\u7b49\u5f85\u72b6\u6001 *\/\r\n        FLASH_SetLatency(FLASH_Latency_5);\r\n        FLASH_PrefetchBufferCmd(ENABLE);\r\n        FLASH_InstructionCacheCmd(ENABLE);\r\n        FLASH_DataCacheCmd(ENABLE);\r\n\r\n        \/* 4. \u914d\u7f6e PLL *\/\r\n        RCC_PLLConfig(RCC_PLLSource_HSE, 8, 336, 2, 7); \/\/ 8MHz \u5916\u90e8\u6676\u632f\r\n\r\n        \/* 5. \u542f\u7528 PLL *\/\r\n        RCC_PLLCmd(ENABLE);\r\n        while (RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET);\r\n\r\n        \/* 6. \u9009\u62e9 PLL \u4f5c\u4e3a\u7cfb\u7edf\u65f6\u949f\u6e90 *\/\r\n        RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);\r\n        while (RCC_GetSYSCLKSource() != 0x08);\r\n\r\n        \/* 7. \u914d\u7f6e AHB\u3001APB \u65f6\u949f\u5206\u9891\u5668 *\/\r\n        RCC_HCLKConfig(RCC_SYSCLK_Div1);    \/\/ AHB \u65f6\u949f = \u7cfb\u7edf\u65f6\u949f \/ 1 = 168MHz\r\n        RCC_PCLK1Config(RCC_HCLK_Div4);     \/\/ APB1 \u65f6\u949f = AHB \u65f6\u949f \/ 4 = 42MHz\r\n        RCC_PCLK2Config(RCC_HCLK_Div2);     \/\/ APB2 \u65f6\u949f = AHB \u65f6\u949f \/ 2 = 84MHz\r\n\r\n        \/* 8. \u66f4\u65b0 SystemCoreClock \u53d8\u91cf *\/\r\n        SystemCoreClockUpdate();\r\n    }\r\n    else\r\n    {\r\n        \/* HSE \u542f\u52a8\u5931\u8d25\uff0c\u5904\u7406\u9519\u8bef *\/\r\n        while (1);\r\n    }\r\n}<\/code><\/pre>\n
\u7cfb\u7edf\u914d\u7f6e\u6587\u4ef6<\/h2>\n
FreeRTOS\u7684\u7cfb\u7edf\u914d\u7f6e\u6587\u4ef6\u662fFreeRTOSConfig.h\uff0c\u6211\u4eec\u6765\u8be6\u7ec6\u4ecb\u7ecd\u4e00\u4e0b\u8fd9\u4e2a\u6587\u4ef6\u3002<\/p>\n
\u8fd9\u4e2a\u6587\u4ef6\u662f\u5bf9FreeRTOS\u7684\u529f\u80fd\u8fdb\u884c\u914d\u7f6e\u548c\u88c1\u526a<\/strong><\/span>\uff0c\u4ee5\u53caAPI\u51fd\u6570\u7684\u4f7f\u80fd\u7b49\u3002<\/p>\n
\u6211\u4eec\u5728\u8fd9\u4e2a\u6587\u4ef6\u91cc\uff0c\u53ef\u4ee5\u901a\u8fc7\u5b8f\u5b9a\u4e49\uff0c\u6765\u88c1\u526a\u6389\u6211\u4eec\u4e0d\u4f7f\u7528\u7684\u529f\u80fd\uff0c\u8fd9\u5c31\u662f\u88c1\u526a<\/strong><\/span>\u3002<\/p>\n
\u4e4b\u524d\u4e5f\u8bf4\u8fc7\uff0c\u6211\u4eec\u7684\u8c03\u5ea6\u5668\u7b97\u6cd5\u6709\u4e09\u79cd\uff1a\u62a2\u5360\u5f0f\u3001\u534f\u4f5c\u5f0f\u3001\u65f6\u95f4\u7247\u8fd9\u4e09\u79cd\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u8be5\u6587\u4ef6\u6765\u914d\u7f6e\uff0c\u770b\u7528\u54ea\u79cd\u7b97\u6cd5\uff0c\u8fd9\u5c31\u662f\u914d\u7f6e<\/strong><\/span>\u3002<\/p>\n
API\u51fd\u6570\u7684\u4f7f\u80fd\u548c\u5931\u80fd\uff0c\u6709\u4e9b\u51fd\u6570\u7528\u5f97\u5230\uff0c\u5c31\u4f7f\u80fd\uff0c\u7528\u4e0d\u5230\uff0c\u5c31\u5931\u80fd\uff1b\u8fd9\u6837\u53ef\u4ee5\u5927\u5927\u8282\u7701\u6211\u4eec\u7684\u7a7a\u95f4\u3002<\/p>\n
 <\/p>\n
\u8fd9\u4e9b\u5b8f\u5b9a\u4e49\u53ef\u4ee5\u5206\u4e3a\u4e09\u5927\u7c7b\uff1a<\/p>\n
\u201cINCLUDE\u201d\u5f00\u5934\u7684 \uff1a \u914d\u7f6eFreeRTOS\u4e2d\u53ef\u9009\u7684API\u51fd\u6570\u3002<\/p>\n
\u201cconfig\u201d\u5f00\u5934\u7684\uff1a \u5b8c\u6210FreeRTOS\u7684\u529f\u80fd\u914d\u7f6e\u548c\u88c1\u526a\u3002<\/p>\n
\u5176\u4ed6\u914d\u7f6e\u9879 \uff1a PendSV\u5b8f\u5b9a\u4e49\u3001SVC\u5b8f\u5b9a\u4e49\u3002<\/p>\n
<\/svg>\u90e8\u5206\u5b8f\u5b9a\u4e49\u89e3\u91ca<\/div>
<\/p>\n
configUSE_PREEMPTION<\/strong> \uff1a1\u662f\u62a2\u5360\u5f0f\u8c03\u5ea6\uff0c0\u662f\u534f\u7a0b\u5f0f\u8c03\u5ea6\u3002<\/p>\n
configUSE_PORT_OPTIMISED_TASK_SELECTION<\/strong>\uff1a\u8ba1\u7b97\u4e0b\u4e00\u4e2a\u4efb\u52a1\u662f\u54ea\u4e2a\uff0c\u4e00\u79cd\u662f\u786c\u4ef6\u8ba1\u7b97\u65b9\u5f0f\uff08\u7279\u6b8a\u65b9\u5f0f\uff09\uff0c\u53e6\u4e00\u79cd\u662f\u8f6f\u4ef6\u8ba1\u7b97\u65b9\u5f0f\uff08\u901a\u7528\u65b9\u5f0f\uff09\u3002\u4f46\u662f\u8f6f\u4ef6\u65b9\u5f0f\u6548\u7387\u6bd4\u8f83\u4f4e\uff0c\u786c\u4ef6\u65b9\u5f0f\u6548\u7387\u9ad8\u3002\uff08STM32\u652f\u6301\u786c\u4ef6\u8ba1\u7b97\u65b9\u5f0f\uff09<\/p>\n
 configUSE_TICKLESS_IDLE<\/strong> :\u00a0 1\u5c31\u662f\u4f7f\u80fdtickless\u4f4e\u529f\u8017\u6a21\u5f0f, \u9ed8\u8ba4\u662f0\uff0c\u4e0d\u4f7f\u80fd\u3002<\/p>\n
configCPU_CLOCK_HZ<\/strong>\u00a0 \u00a0: SystemCoreClock \u662f\u7cfb\u7edf\u65f6\u949f\u9891\u7387\uff0c\u6211\u7684\u662f168MHz\u3002<\/p>\n
configSYSTICK_CLOCK_HZ\u00a0<\/span> \uff1a (configCPU_CLOCK_HZ \/ 8) \uff0c\u8fd9\u4e2a\u662f\u53ea\u6709F1<\/span>\u624d\u4f1a\u4f7f\u7528\u8fd9\u4e2a\u5b8f\uff0cF4\u3001F7\u3001H7\u8fd9\u4e2a\u662f\u4e0d\u7528\u7684\uff0c\u8fd9\u662f\u4e0d\u540c\u7cfb\u5217\u7684\u552f\u4e00<\/strong><\/span>\u533a\u522b\u3002SysTick\u65f6\u949f\u9891\u7387\uff08\u65f6\u949f\u6e90\uff09\uff0c\u5f53SysTick\u65f6\u949f\u9891\u7387\u4e0e\u5185\u6838\u65f6\u949f\u9891\u7387\u4e0d\u540c\u65f6\u624d\u53ef\u4ee5\u5b9a\u4e49\u3002<\/p>\n
configTICK_RATE_HZ<\/strong> \uff1a\u5b9a\u4e49\u7cfb\u7edf\u65f6\u949f\u8282\u62cd\u9891\u7387, \u5355\u4f4d: Hz, \u65e0\u9ed8\u8ba4\u9700\u5b9a\u4e49 \uff0c\u6211\u4eec\u8fd9\u91cc\u8bbe\u7f6e1000\uff0c\u5c31\u662f1000Hz\uff0c\u8ba1\u6570\u4e00\u6b21\u5c31\u662f1ms\u3002<\/p>\n
configMAX_PRIORITIES<\/strong> \uff1a\u6700\u5927\u4f18\u5148\u7ea7\u6570\u91cf\uff0c\u786c\u4ef6\u7684\u8bdd\u5c31\u662f32\u3002<\/p>\n
configMINIMAL_STACK_SIZE<\/strong> <\/span>\uff1a \u7a7a\u95f2\u4efb\u52a1\u7684\u5806\u6808\u5927\u5c0f\uff0c\u5355\u4f4d\u662f\u5b57\uff08Word\uff09\u3002\u6211\u4eecCPU\u662f\u4e0d\u80fd\u95f2\u8d77\u6765\u7684\uff0c\u6240\u4ee5\u4f1a\u63d0\u524d\u521b\u5efa\u4e00\u4e2a\u7a7a\u95f2\u4efb\u52a1\u3002<\/p>\n
configMAX_TASK_NAME_LEN<\/strong> <\/span>\uff1a\u4efb\u52a1\u540d\u5b57\u7684\u6700\u5927\u5b57\u7b26\u3002\u4e00\u822c\u6211\u4eec\u9009\u62e916\u3002<\/p>\n
configUSE_16_BIT_TICKS<\/strong><\/span>\uff1a\u7528\u4e8e\u5b9a\u4e49\u7cfb\u7edf\u8282\u62cd\u8ba1\u6570\u5668\u7684\u6570\u636e\u7c7b\u578b\uff0c\u4e3a1\u7684\u65f6\u5019\u5c31\u662f16\u4f4d\u65e0\u7b26\u53f7\u6574\u578b\uff1b\u4e3a0\u7684\u65f6\u5019\uff0c\u5c31\u662f32\u4f4d\u65e0\u7b26\u53f7\u6574\u578b\u3002STM32\u662f32\u4f4d\u7684\uff0c\u6240\u4ee5\u6211\u4eec\u5b9a\u4e49\u4e3a0\uff0c32\u4f4d\u65e0\u7b26\u53f7\u6574\u578b\u3002<\/p>\n
configIDLE_SHOULD_YIELD<\/strong>\uff1a \u5f53\u4e3a1\u65f6\uff0c\u4f7f\u80fd\u5728\u62a2\u5360\u5f0f\u8c03\u5ea6\u4e0b,\u540c\u4f18\u5148\u7ea7\u7684\u4efb\u52a1\u80fd\u62a2\u5360\u7a7a\u95f2\u4efb\u52a1\u3002\u6bd4\u5982\u6211\u4eec\u7a7a\u95f2\u4efb\u52a1\u65f6\u6700\u4f4e\u4f18\u5148\u7ea7\u7684\uff0c\u4e5f\u5c31\u662f0\uff0c\u90a3\u4e48\u5982\u679c\u6211\u4eec\u4e5f\u521b\u5efa\u4e86\u4e00\u4e2a\u4f18\u5148\u7ea7\u4e3a0\u7684\u4efb\u52a1\uff0c\u6211\u4eec\u53ef\u4ee5\u62a2\u5360\u7a7a\u95f2\u4efb\u52a1\u3002<\/p>\n
configUSE_TASK_NOTIFICATIONS<\/strong>\uff1a\u4f7f\u80fd\u4efb\u52a1\u95f4\u76f4\u63a5\u7684\u6d88\u606f\u4f20\u9012,\u5305\u62ec\u4fe1\u53f7\u91cf\u3001\u4e8b\u4ef6\u6807\u5fd7\u7ec4\u548c\u6d88\u606f\u90ae\u7bb1, \u9ed8\u8ba4: 1\u3002<\/p>\n
configTASK_NOTIFICATION_ARRAY_ENTRIES<\/strong>\uff1a\u4f7f\u80fd\u4efb\u52a1\u95f4\u76f4\u63a5\u7684\u6d88\u606f\u4f20\u9012,\u5305\u62ec\u4fe1\u53f7\u91cf\u3001\u4e8b\u4ef6\u6807\u5fd7\u7ec4\u548c\u6d88\u606f\u90ae\u7bb1, \u9ed8\u8ba4: 1\u3002<\/p>\n
configUSE_MUTEXES<\/strong>\uff1a\u4f7f\u80fd\u4e92\u65a5\u4fe1\u53f7\u91cf, \u9ed8\u8ba4: 0 \u3002<\/p>\n
configUSE_RECURSIVE_MUTEXES\uff1a\u4f7f\u80fd\u9012\u5f52\u4e92\u65a5\u4fe1\u53f7\u91cf, \u9ed8\u8ba4: 0 \u3002<\/p>\n
configUSE_COUNTING_SEMAPHORES \uff1a1: \u4f7f\u80fd\u8ba1\u6570\u4fe1\u53f7\u91cf, \u9ed8\u8ba4: 0 \u3002<\/p>\n
configQUEUE_REGISTRY_SIZE \uff1a\u5b9a\u4e49\u53ef\u4ee5\u6ce8\u518c\u7684\u4fe1\u53f7\u91cf\u548c\u6d88\u606f\u961f\u5217\u7684\u4e2a\u6570, \u9ed8\u8ba4: 0 \u3002<\/p>\n
configUSE_QUEUE_SETS\u00a0 \uff1a1: \u4f7f\u80fd\u961f\u5217\u96c6, \u9ed8\u8ba4: 0 \u3002<\/p>\n
configUSE_TIME_SLICING \uff1a 1: \u4f7f\u80fd\u65f6\u95f4\u7247\u8c03\u5ea6, \u9ed8\u8ba4: 1 \u3002<\/p>\n
#define configUSE_NEWLIB_REENTRANT 0 \/* 1: \u4efb\u52a1\u521b\u5efa\u65f6\u5206\u914dNewlib\u7684\u91cd\u5165\u7ed3\u6784\u4f53, \u9ed8\u8ba4: 0 *\/<\/p>\n
#define configENABLE_BACKWARD_COMPATIBILITY 0 \/* 1: \u4f7f\u80fd\u517c\u5bb9\u8001\u7248\u672c, \u9ed8\u8ba4: 1 \uff0c\u5982\u679c\u8bbe\u7f6e1\uff0c\u5c31\u8bf4\u660e\u4f60\u517c\u5bb9\u4e00\u4e9b\u8001\u7248\u672c\u7684API\u51fd\u6570*\/<\/p>\n
<\/div><\/div><\/div>\n
\u94a9\u5b50\u51fd\u6570\uff0c\u6240\u8c13\u94a9\u5b50\u51fd\u6570\u5176\u5b9e\u5c31\u662f\u56de\u8c03\u51fd\u6570\uff0c\u94a9\u5b50\u51fd\u6570\u91cc\u9762\u7684\u5185\u5bb9\uff0c\u5c31\u662f\u7528\u6237\u81ea\u5df1\u5b9e\u73b0\u4e86\u3002<\/p>\n
 <\/p>\n","protected":false},"excerpt":{"rendered":"
FreeRTOS\u6e90\u7801 \u4e0b\u8f7d -> FreeRTOS\u6587\u4ef6\u5939 -> Source\u6587\u4ef6\u5939 \uff1a \u6211\u4eec\u9700\u8981i […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12],"tags":[],"class_list":["post-1263","post","type-post","status-publish","format-standard","hentry","category-rtos"],"_links":{"self":[{"href":"https:\/\/aoofoo.com\/index.php\/wp-json\/wp\/v2\/posts\/1263","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aoofoo.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aoofoo.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aoofoo.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aoofoo.com\/index.php\/wp-json\/wp\/v2\/comments?post=1263"}],"version-history":[{"count":17,"href":"https:\/\/aoofoo.com\/index.php\/wp-json\/wp\/v2\/posts\/1263\/revisions"}],"predecessor-version":[{"id":1286,"href":"https:\/\/aoofoo.com\/index.php\/wp-json\/wp\/v2\/posts\/1263\/revisions\/1286"}],"wp:attachment":[{"href":"https:\/\/aoofoo.com\/index.php\/wp-json\/wp\/v2\/media?parent=1263"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aoofoo.com\/index.php\/wp-json\/wp\/v2\/categories?post=1263"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aoofoo.com\/index.php\/wp-json\/wp\/v2\/tags?post=1263"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}