代码:
#include "at32l021_board.h"
#include "at32l021_clock.h"
#include "FreeRTOS.h"
#include "task.h"
#include "queue.h"
#include "semphr.h"
#include "stdio.h"
/** @addtogroup UTILITIES_examples
* @{
*/
int cnt=0;
QueueHandle_t Key_Queue;
#define KEYMSG_Q_NUM 1
/** @addtogroup FreeRTOS_demo
* @{
*/
//unsigned char const mainSENDER_1=30;
//unsigned char const mainSENDER_2=50;
button_type at32_button_press(void);
void task1(void *pvParameters)
{
//uint8_t key;
BaseType_t err;
button_type key=0;
while(1)
{
cnt++;
err=xQueueOverwrite(Key_Queue,&cnt);
//err=xQueueSend(Key_Queue,&key,10);
if(err!=pdTRUE)
{
printf("Queue Send Failed!\r\n");
}
else
{
printf("Queue Send Succeed!\r\n");
}
//LED0_TOGGLE(); /* LED0闪烁 */
vTaskDelay(1000); /* 延时1000ticks */
}
}
/**
* [url=home.php?mod=space&uid=247401]@brief[/url] task2
* @param pvParameters : 传入参数(未用到)
* @retval 无
*/
void Keyprocess_task(void *pvParameters)
{
uint8_t key;
BaseType_t err;
while(1)
{
/* 更新数值 */
//printf("task3正在运行!!!\r\n"); /* 打印数值 */
if(Key_Queue!=NULL)
{
err=xQueueReceive(Key_Queue,&key,portMAX_DELAY);
if(err==pdTRUE)
{
printf("cnt value=%d\r\n",cnt);
}
}
// else
// {
//
// vTaskDelay(1000); /* 延时1000ticks */
// }
}
}
/**
* @brief main function.
* @param none
* @retval none
*/
int main(void)
{
system_clock_config();
delay_init();
/* init led2 and led3 */
at32_led_init(LED2);
at32_led_init(LED3);
at32_button_init();
/* init usart1 */
uart_print_init(115200);
Key_Queue=xQueueCreate(KEYMSG_Q_NUM,sizeof(uint8_t));
/* create led2 task */
xTaskCreate(task1,
"vTask1",
512,
(void *)30,
3,
NULL);
xTaskCreate(Keyprocess_task,
"vTask2",
128,
NULL,
3,
NULL);
/* start scheduler */
vTaskStartScheduler();
}
运行效果图:
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