阴世幽泉 发表于 2020-1-8 00:55 HAL_UART_Transmit_IT函数进入，第一个就是判断是否发送被占用 if (huart->gState == HAL_UART_STATE_REA ... HAL_UART_Transmit_IT(&hlpuart1, (uint8_t *)str,stringlength); chardat=0x0D; HAL_UART_Transmit_IT(&hlpuart1, (uint8_t *)&chardat,1); chardat=0x0A; HAL_UART_Transmit_IT(&hlpuart1, (uint8_t *)&chardat,1); 请问:如上发送一个命令分三次中断发送,为什么前面的命令进了2次HAL_UART_TxCpltCallback(UART_HandleTypeDef *huart),最后的命令进了3次?(我想实现在HAL_UART_TxCpltCallback中判断if (huart->gState == HAL_UART_STATE_READY),但没有实现)
