CC2642R: cc2642 尝试使用sdk种的uart2callback 实现串口的收发，但能发送 却无法接收数据，不确定什么原因

//初始处理接收的数据
void processReceivedData(void)
{// 刷新 RX 缓冲区状态size_t bytesRead;size_t bytesWritten = 0;bytesRead = 0;uint32_t status = UART2_STATUS_SUCCESS;// 读取接收到的数据status = UART2_read(uartHandle, rxBuffer, 5, &bytesRead);if (status != UART2_STATUS_SUCCESS){/* UART2_read() failed */switch (status) {case UART2_STATUS_EINUSE:// System_printf("UART read: The UART is currently in use.\n");sendData("UART read: The UART is currently in use.\n", strlen("UART read: The UART is currently in use.\n"));break;default:System_printf("UART read: Unknown error (0x%x)\n", status);break;}}else {bytesRead = status;}if (numBytesRead > 0) {numBytesRead=0;// 处理接收到的数据rxBuffer[0]=numBytesRead;// 清除接收缓冲区memset(rxBuffer, 0, RX_BUFFER_SIZE);}
}

//callback
void callbackFxn(UART2_Handle handle, void *buffer, size_t count, void *userArg, int_fast16_t status)
{if (status != UART2_STATUS_SUCCESS){/* RX error occured in UART2_read() *///while (1) {}}
 
}

//initial uartUART2_Params uartParams;UART2_HWAttrs const *hwAttrs;
 
UART2_Params_init(&uartParams);uartParams.readMode= UART2_Mode_CALLBACK;uartParams.readCallback = callbackFxn;uartParams.baudRate = 115200;uartParams.dataLength = UART2_DataLen_8;uartParams.stopBits = UART2_StopBits_1;uartParams.parityType = UART2_Parity_NONE;uartHandle = UART2_open(CONFIG_UART2_0, &uartParams);if (uartHandle == NULL) {//Log_info0("UART open failed");//while (1) {}uint8_t test_msg1[50] = "UART open failed";UART2_write(uartHandle, test_msg1, sizeof(test_msg1), NULL);}else{uint8_t test_msg1[50] = "UART open success";UART2_write(uartHandle, test_msg1, sizeof(test_msg1), NULL);}//main han'shuwhile (1){// 主循环，处理其他任务Task_sleep(1000); // 休眠一段时间processReceivedData();Task_sleep(1000); // 休眠一段时间size_t bytesWritten;UART2_write(uartHandle, sendString, strlen(sendString), &bytesWritten);

代码如下   运行后

数据可以一直发送 但uart_read  一直显示串口在使用

Hello, UART!
UART read: The UART is currently in use.

Alice：

您好，

    UART2.h File Reference (ti.com)

    试一下 UART2_readCancel()。

    

,

yu cui：

问题已解决 感谢