156 lines
4.9 KiB
C
156 lines
4.9 KiB
C
#include "stm32f10x.h" // Device header
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#include "FreeRTOS.h"
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#include "task.h"
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#include "queue.h"
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#include "semphr.h"
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#include "Delay.h"
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#include "USART.h"
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#include "LED.h"
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#include "ESP8266.h"
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#include "NetFIFO.h"
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/* 待验证的改动：合并串口。 */
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/* 创建一个新任务，需要创建任务句柄,任务句柄与任务函数一一对应。 */
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TaskHandle_t xTaskStateLedHdlr;
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TaskHandle_t xTaskWifiConnectHdlr;
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/* 创建队列句柄 */
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QueueHandle_t xQueueUsart1IrqHdlr;
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QueueHandle_t xQueueUsart2IrqHdlr;
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QueueHandle_t xQueueUsart3IrqHdlr;
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/* 创建二值信号量句柄 */
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SemaphoreHandle_t xSemWifiRetOkHdlr;
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SemaphoreHandle_t xSemWifiRetErrHdlr;
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/**
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* @brief 状态指示LED任务
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* @note 通过控制PC13引脚的LED灯，实现系统状态的指示功能。
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* @param *pvParameters 任务参数，若没有特定的参数则设置为空指针
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* @retval None
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*/
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/* 创建任务 */
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void vTaskStateLed(void *pvParameters)
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{
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while(1)
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{
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vPc13LedOn();
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vTaskDelay(1000);
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vPc13LedOff();
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vTaskDelay(1000);
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}
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}
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/**
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* @brief 连接WiFi任务
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* @note 利用FreeRTOS中断消息队列机制，接收ESP8266的响应数据，并将响应数据存到内置的FIFO缓冲区内。在再判断数据是否符合要求。
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* @note 问题：将接收消息队列函数和处理响应数据函数混到一块了，造成了代码的冗余。
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* @param *pvParameters 任务参数，若没有特定的参数则设置为空指针
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* @retval None
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*/
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void vTaskWifiConnection(void *pvParameters)
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{
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NetFifoBuffer_t espBuffer;
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vNetBufferInit(&espBuffer);
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uint8_t ucRetvalQueueWifiSta = 0;
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uint8_t ucRetvalQueueByte = 0;
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while (1)
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{
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/* code */
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ucEsp8266SetMode(1);
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TickType_t startTime = xTaskGetTickCount();
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while ((xTaskGetTickCount() - startTime) < pdMS_TO_TICKS(3000))
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{
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ucRetvalQueueWifiSta = xQueueReceive(xQueueUsart2IrqHdlr,
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&ucRetvalQueueByte,
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pdMS_TO_TICKS(100));
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if (ucRetvalQueueWifiSta == pdTRUE)
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{
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// 将接收到的字节处理到缓冲区
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vNetBufferWrite(&espBuffer, (char)ucRetvalQueueByte);
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// 处理响应数据
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uint8_t ucResponseStatus = ucEsp8266ResponseHandler(&espBuffer);
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if (strstr(espBuffer.cResponseBuffer, "ready") != NULL)
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{
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vUsartSendString(USART3, "WiFi Reset Successfully!\r\n");
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vUsartSendString(USART3, espBuffer.cResponseBuffer);
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vTaskDelay(1000);
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break;
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} else if (strstr(espBuffer.cResponseBuffer, "OK") != NULL)
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{
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/* code */
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vUsartSendString(USART3, "Set WiFi Mode Successfully!\r\n");
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vUsartSendString(USART3, espBuffer.cResponseBuffer);
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} else if (strstr(espBuffer.cResponseBuffer, "ERROR") != NULL ||
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strstr(espBuffer.cResponseBuffer, "FAIL") != NULL)
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{
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vUsartSendString(USART3, "Error!\r\n");
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vUsartSendString(USART3, espBuffer.cResponseBuffer);
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vUsartSendString(USART3, "\r\n");
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break;
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}
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}
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}
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vTaskDelete(NULL);
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}
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}
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void vCreateTasksList(void)
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{
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xTaskCreate(
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(TaskFunction_t ) vTaskStateLed,
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(char * ) "TaskName_StateLed",
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(configSTACK_DEPTH_TYPE) 256,
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(void * ) NULL,
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(UBaseType_t ) 2,
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(TaskHandle_t * ) &xTaskStateLedHdlr);
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xTaskCreate(
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(TaskFunction_t ) vTaskWifiConnection,
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(char * ) "TaskName_WifiConnectToAP",
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(configSTACK_DEPTH_TYPE) 512,
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(void * ) NULL,
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(UBaseType_t ) 2,
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(TaskHandle_t * ) &xTaskWifiConnectHdlr);
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}
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void vCreateQueuesList(void)
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{
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xQueueUsart1IrqHdlr = xQueueCreate(
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(UBaseType_t) 64,
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(UBaseType_t) sizeof(uint8_t *));
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xQueueUsart2IrqHdlr = xQueueCreate(
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(UBaseType_t) 1024,
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(UBaseType_t) sizeof(char *));
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xQueueUsart3IrqHdlr = xQueueCreate(
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(UBaseType_t) 64,
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(UBaseType_t) sizeof(uint8_t *));
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if (xQueueUsart2IrqHdlr == NULL)
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{
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/* code */
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vUsartSendString(USART1, "Queue Init Failed.\r\n");
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vTaskDelay(1000);
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}
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}
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void vCreateSemaphoresList(void)
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{
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xSemWifiRetOkHdlr = xSemaphoreCreateBinary();
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xSemWifiRetErrHdlr = xSemaphoreCreateBinary();
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}
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int main(void)
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{
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vUsartInit(USART2, 115200);
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vUsartInit(USART3, 115200);
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vDelayInit();
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vPc13LedInit();
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vCreateTasksList();
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vCreateQueuesList();
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vCreateSemaphoresList();
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vTaskStartScheduler();
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while(1)
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{
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}
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}
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