小编实际操作中,用HAL_UART_RxCpltCallback函数配置接收串口数据,在测试过程中用手碰了单片机引脚之后无法再接收到数据,终于找到了解决办法,就是自己使能接收中断和自己定义中断回调函数;
使能中断
__HAL_UART_ENABLE_IT(&huart1,UART_IT_IDLE); //空闲中断使能
__HAL_UART_ENABLE_IT(&huart1,UART_IT_RXNE); //接收中断使能
中断回调函数
void user_uart1IT_ReceiveCallback(void)
{
static uint8_t* pBuff = uart1_data.uart1_rxbuff;
static uint8_t size_cnt=0;
uint8_t receive_dat;
if(__HAL_UART_GET_FLAG(&huart1, UART_FLAG_RXNE) != RESET) //uart rx flag
{
receive_dat = (uint16_t) READ_REG(huart1.Instance->DR);
*(pBuff++) = receive_dat;
size_cnt++;
__HAL_UART_CLEAR_FLAG(&huart1,UART_FLAG_RXNE);
}
if(__HAL_UART_GET_FLAG(&huart1, UART_FLAG_IDLE) != RESET) //uart idle flag
{
uart1_state.bits.interrupt_idle = ON; //set flag
uart1_data.uart1_count = size_cnt;
receive_dat = (uint16_t) READ_REG(huart1.Instance->DR); //clear reg
size_cnt=0;
pBuff = uart1_data.uart1_rxbuff;
__HAL_UART_CLEAR_IDLEFLAG(&huart1);
}
}
本程序包含自己定制的AT指令上图片
源码链接:https://github.com/NoSmallWhite/WL-open-projects
文件名:demo-adc-vet6-20200708-1732 自定义AT指令字取出任意字符串