RTOS/CC2640: Addind uart to project

Anna Leshinsky4

Intellectual 280 points

Part Number: CC2640

Tool/software: TI-RTOS

I want to add UART debugging interface to SimpleBLECentral project.

My code in main :

const unsigned char hello[] = "Hello World\n";

UART_init();

UART_Params_init(&params);
params.baudRate = 115200;
params.writeDataMode = UART_DATA_BINARY;
params.readDataMode = UART_DATA_BINARY;
params.readReturnMode = UART_RETURN_NEWLINE;
params.readEcho = UART_ECHO_OFF;
handle = UART_open(Board_UART, &params);

UART_write(handle, hello, sizeof(hello));

I am getting a write on the terminal. But I want to do a read option to, what is a task parameters to configure task for reading.

I will very greatful to get any example of using uart . Is there any example?

Thanks

over 8 years ago

Alan DeMars over 8 years ago

TI__Mastermind 30830 points

The "uartecho" example provided within the TI-RTOS product shows a simple use case of UART_read().

To read characters from the UART you have already opened, simply pass a buffer and a character count to UART_read():

char rxBuffer[32];

UART_read(handle, rxBuffer, 1); /* this will return after one character has been received and copied into 'rxBuffer' */

Alan

Anna Leshinsky4 over 8 years ago in reply to Alan DeMars

Intellectual 280 points

Thanks Alan, I did it in the way you suggested but the read just dont work .... is there any limits on which pins I can put the UART?

Alan DeMars over 8 years ago in reply to Anna Leshinsky4

TI__Mastermind 30830 points

I was assuming you were using the UART configuration provided in the example Board file, which uses the serial port bound to the Jtag USB connection. No? If not, which pins are you using for tx and rx? Can you share your Board file so I can have a look?

Are you saying the UART_read() function call never returns after you have type characters into your terminal emulator?

Alan