“串口通信怎么得到读取的数据”

您是想获取串口读取的数据？

Sending and receiving data via the UART is handled by the UARTCharGet(), UARTCharGetNonBlocking(), UARTCharPut(), UARTCharPutNonBlocking(), UARTBreakCtl(), UARTCharsAvail(), and UARTSpaceAvail() functions. 

在此例程中使用的是 

UARTCharGetNonBlocking() 

http://software-dl.ti.com/simplelink/esd/simplelink_msp432e4_sdk/4.10.00.13/docs/driverlib/msp432e4/api_guide/html/group__uart__api.html#gaad338221fc820412b005653855cedaf7