CCS/MSP432P4111: MSP-EXP432P401R and UART communication

Samuele Faggiano

Part Number: MSP432P4111

Tool/software: Code Composer Studio

Hi,

I'm new with RTOS and I'm trying to connect a display to the MSP-EXP432P401R using UART1. In the display there is a keyboard and numbers are sent to the TI board, and then they are sent again to my laptop using UART0:

while(1) {

UART_read(uart1, &input, 1);

UART_write(uart, &input, 1);
}

The parameters are:

uartParams.writeDataMode = UART_DATA_BINARY;
uartParams.readDataMode = UART_DATA_BINARY;
uartParams.readReturnMode = UART_RETURN_FULL;
uartParams.readEcho = UART_ECHO_OFF;
uartParams.baudRate = 115200;

But I don't see anything in my terminal. I know that the display is working properly, so I can't understand why the MSP-EXP432P401R doesn't receive the numbers on UART1.

Thanks.

Best regards,

Samuele

over 6 years ago

0 Keith Barkley over 6 years ago

Guru 43635 points

Should the instance be "uart" or "uart0"?

Can you "hello, world!" the PC?

0 Genatco over 6 years ago

Guru 56358 points

Samuele Faggiano said:
n the display there is a keyboard and numbers are sent to the TI board, and then they are sent again to my laptop using UART0:

Do you have a virtual COM driver from TI installed or some other low level virtual driver?

Assume you MPS432 is connected via USB cable to laptop computer?

0 Samuele Faggiano over 6 years ago in reply to Keith Barkley

Prodigy 40 points

Sorry, I didn't specify. 'uart' is 'board_UART0' and 'uart1' is 'board_UART0'.

Yes, I can print on the PC using USB cable. The UARTs are defined correctly (already tested in a different way), so it is like the uart1 reads in the wrong moment. I was wondering if I have to use the 'readCallback' function. If so, can you provide me with a simple example?

Thanks.

Best regards,

Samuele

0 TER over 6 years ago in reply to Samuele Faggiano

TI__Guru**** 317180 points

Please verify that you manage to run the uartecho example:

Code Composer Studio™︎

Code Composer Studio forum

CCS/MSP432P4111: MSP-EXP432P401R and UART communication