stm32f103c8t6 FreeRTOS例程串口和閃燈源碼

ID:233090 · 發(fā)表于 2018-10-26 10:01

stm32f103c8t6  FreeRTOS例程串口和閃燈.
PC13閃爍，串口打印數(shù)據(jù)。
使用編譯環(huán)境：MDK4.72A  IAR6.30
使用硬件環(huán)境：所有STM32F103xxx硬件系統(tǒng)
使用函數(shù)庫(kù)版本：STM32F10x_StdPeriph_Driver V3.50
工程概要：PC13延時(shí)閃亮
調(diào)試方式：ST-Link  SW

單片機(jī)源程序如下:

//頭文件
#include "stm32f10x.h"
#include "usart.h"
#include "led.h"
#include "FreeRTOS.h"
#include "task.h"
#include "led.h"
#include <stdio.h>
//任務(wù)優(yōu)先級(jí)
#define START_TASK_PRIO 1
//任務(wù)堆棧大小
#define START_STK_SIZE 128
//任務(wù)句柄
TaskHandle_t StartTask_Handler;
//任務(wù)函數(shù)
void start_task(void *pvParameters);
//任務(wù)優(yōu)先級(jí)
#define LED0_TASK_PRIO 2
//任務(wù)堆棧大小
#define LED0_STK_SIZE 50
//任務(wù)句柄
TaskHandle_t LED0Task_Handler;
//任務(wù)函數(shù)
void led0_task(void *pvParameters);
//任務(wù)優(yōu)先級(jí)
#define UART1_TASK_PRIO 3
//任務(wù)堆棧大小
#define UART1_STK_SIZE 50
//任務(wù)句柄
TaskHandle_t UART1Task_Handler;
//任務(wù)函數(shù)
void uart1_task(void *pvParameters);
int main(void)
{
SystemInit();
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_4);//設(shè)置系統(tǒng)中斷優(yōu)先級(jí)分組4
USART1_Config(); //初始化串口
LED_GPIO_Config(); //初始化LED
//創(chuàng)建開(kāi)始任務(wù)
xTaskCreate((TaskFunction_t )start_task, //任務(wù)函數(shù)
(const char* )"start_task", //任務(wù)名稱(chēng)
(uint16_t )START_STK_SIZE, //任務(wù)堆棧大小
(void* )NULL, //傳遞給任務(wù)函數(shù)的參數(shù)
(UBaseType_t )START_TASK_PRIO, //任務(wù)優(yōu)先級(jí)
(TaskHandle_t* )&StartTask_Handler); //任務(wù)句柄
vTaskStartScheduler(); //開(kāi)啟任務(wù)調(diào)度
}
//開(kāi)始任務(wù)任務(wù)函數(shù)
void start_task(void *pvParameters)
{
taskENTER_CRITICAL(); //進(jìn)入臨界區(qū)
//創(chuàng)建LED0任務(wù)
xTaskCreate((TaskFunction_t )led0_task,
(const char* )"led0_task",
(uint16_t )LED0_STK_SIZE,
(void* )NULL,
(UBaseType_t )LED0_TASK_PRIO,
(TaskHandle_t* )&LED0Task_Handler);
//創(chuàng)建Uart任務(wù)
xTaskCreate((TaskFunction_t )uart1_task,
(const char* )"uart1_task",
(uint16_t )UART1_STK_SIZE,
(void* )NULL,
(UBaseType_t )UART1_TASK_PRIO,
(TaskHandle_t* )&UART1Task_Handler);
vTaskDelete(StartTask_Handler); //刪除開(kāi)始任務(wù)
taskEXIT_CRITICAL(); //退出臨界區(qū)
}
//LED0任務(wù)函數(shù)
void led0_task(void *pvParameters)
{
while(1)
{
LED0_ON;
vTaskDelay(500);
LED0_OFF;
vTaskDelay(500);
}
}
//uart1任務(wù)函數(shù)
void uart1_task(void *pvParameters)
{
while(1)
{
LED1_ON;
printf("Hello\r\n");
vTaskDelay(800);
}
}