30 lines
1.1 KiB
C
30 lines
1.1 KiB
C
#include "user.h"
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//串口2为485接口
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volatile uint8_t usart2_count = 0; //串口接收数据个数
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uint8_t Rx2_Buff[BUFF_LEN] = {0}; //串口接收缓冲区
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uint8_t Tx2_Buff[BUFF_LEN] = {0}; //串口发送缓冲区
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uint8_t u2_Buff[BUFF_LEN] = {0}; //用户缓冲区
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//串口3为lora通讯口
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volatile uint8_t usart3_count = 0; //串口接收数据个数
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uint8_t Rx3_Buff[BUFF_LEN] = {0}; //串口接收缓冲区
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uint8_t Tx3_Buff[BUFF_LEN] = {0}; //串口发送缓冲区
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uint8_t u3_Buff[BUFF_LEN] = {0}; //用户缓冲区
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void user_init(void)
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{
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bsp_InitTimer();
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__HAL_UART_ENABLE_IT(&huart2,UART_IT_IDLE);
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__HAL_UART_CLEAR_FLAG(&huart2, UART_FLAG_TC);
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__HAL_UART_CLEAR_IDLEFLAG(&huart2);
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HAL_UART_DMAStop(&huart2);//复位DMA //串口DMA接受
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HAL_UART_Receive_DMA(&huart2,(uint8_t *)Rx2_Buff,sizeof(Rx2_Buff));
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//DE发射器使能，高电平有效，RE接收器使能，低电平有效
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HAL_GPIO_WritePin(TXEN_485_GPIO_Port, TXEN_485_Pin, GPIO_PIN_RESET);
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// __HAL_UART_CLEAR_IT(&huart2,UART_CLEAR_IDLEF|UART_CLEAR_TCF);
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} |