STM8s 串列埠接收不定長資料

usart_rtx_typedef usart1_rtx;
void uart1_initial(void)
interrupt_handler(tim4_upd_ovf_irqhandler, 23)
}//gpio_writereverse(gpioc, gpio_pin_4);
tim4_clearitpendingbit(tim4_it_update);
}interrupt_handler(uart1_tx_irqhandler, 17)
interrupt_handler(uart1_rx_irqhandler, 18)
//清中斷。
uart1_clearitpendingbit(uart1_it_rxne);
}

標頭檔案設定下

#ifndef __uart_h__
#define __uart_h__
#include "main.h"
typedef struct
usart_rtx_typedef;
extern usart_rtx_typedef usart1_rtx;
void uart1_initial(void);
void uart_sendbyte (u8 byte);
void uart_sendstring(u8 *string);
void uart_senddatas(u8 *datas,u16 num);
#endif /* __uart_h__ */

主函式測試

while(1)
//led_task();
//uart1_send_string(test_str);
//uart1_send_buffer(test_str,sizeof(test_str));
//gpio_writereverse(gpiob, gpio_pin_5);
}

實現方法也是網上分享的方式，我這裡只是把方式修改了下。串列埠傳送間隔最好大於等於70ms 當然要不然會出現黏包

另外我仔細看了下，stm8s也有串列埠空閒中斷，也可以用空閒中斷的方法實現，下次有空驗證下。

/** * @brief uart1 interrupt definition * uart1_it possible values * elements values convention: 0xzyx * x: position of the corresponding interrupt * - for the following values, x means the interrupt position in the cr2 register. * uart1_it_txe * uart1_it_tc * uart1_it_rxne * uart1_it_idle * uart1_it_or * - for the uart1_it_pe value, x means the flag position in the cr1 register. * - for the uart1_it_lbdf value, x means the flag position in the cr4 register. * y: flag position * - for the following values, y means the flag (pending bit) position in the sr register. * uart1_it_txe * uart1_it_tc * uart1_it_rxne * uart1_it_idle * uart1_it_or * uart1_it_pe * - for the uart1_it_lbdf value, y means the flag position in the cr4 register. * z: register index: indicate in which register the dedicated interrupt source is: * - 1==> cr1 register * - 2==> cr2 register * - 3==> cr4 register

*/typedef enum uart1_it_typedef;

STM8s 串列埠接收不定長資料

STM8S 串列埠應用 UART2 STM8S105

STM32 HAL DMA串列埠接收不定長度實現

STM8S時鐘配置

STM8s 串列埠接收不定長資料

STM8S 串列埠應用 UART2 STM8S105

STM32 HAL DMA串列埠接收不定長度實現

STM8S時鐘配置

相關推薦