本帖最后由 ckdsx.cn 于 2023-9-12 10:43 编辑
#include <stdio.h>
#include <string.h>
#include <FreeRTOS.h>
#include <task.h>
#include <blog.h> //
#include "bl_sys.h"
#include <stdio.h>
#include <cli.h>
#include <hosal_uart.h>
#include <blog.h> //include 一遍头文件即可
#include <hosal_uart.h>
void TaskUart(void *param) //新建无返回函数TaskUart
{
uint8_t data[32]; //定义 数组data
int ret; //定义变量 ret
hosal_uart_dev_t uart_dev_echo = {
.config = {
.uart_id = 0,
.tx_pin = 4, // TXD GPIO
.rx_pin = 3, // RXD GPIO
.cts_pin = 255,
.rts_pin = 255,
.baud_rate = 9600, //波特率 ９６００，８，ｎ，１
.data_width = HOSAL_DATA_WIDTH_8BIT,
.parity = HOSAL_NO_PARITY,
.stop_bits = HOSAL_STOP_BITS_1,
.mode = HOSAL_UART_MODE_POLL,
},
};
hosal_uart_dev_t uart_dev_log = {
.config = {
.uart_id = 1,
.tx_pin = 16, // TXD GPIO
.rx_pin = 7, // RXD GPIO
.cts_pin = 255,
.rts_pin = 255,
.baud_rate = 115200, //波特率９６００，８，ｎ，１
.data_width = HOSAL_DATA_WIDTH_8BIT,
.parity = HOSAL_NO_PARITY,
.stop_bits = HOSAL_STOP_BITS_1,
.mode = HOSAL_UART_MODE_POLL,
},
};
/* Uart init device */
hosal_uart_init(&uart_dev_log); //初始化串口设备 日志
/* Uart init device */
hosal_uart_init(&uart_dev_echo); //初始化串口设备 回显
blog_info("Uart Demo Start"); //日志输出串口示例开始
while (1) //循环
{
/* Uart receive poll */ 串口接收
ret = hosal_uart_receive(&uart_dev_log, data, sizeof(data)); //将串口接收到的数据赋值给ret
if (ret > 0) //判断 如果ret大于0
{
/* Uart send poll */
hosal_uart_send(&uart_dev_log, data, ret); //串口输出ret 数据
blog_info("Get data "); //日志输出 获得数据
}
}
}
/**
* @brief main
*
*/
void main(void) //主函数
{
xTaskCreate(TaskUart, "TaskUart", 1024, NULL, 15, NULL); //执行串口任务
}
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代码已添加注释，还有问题请留言！
GPIO是对引脚的常规操作方式，点灯等程序都依靠GPIO方式可实现。
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