EK-TM4C1294XL: How to use multiple uarts

Pavankumar SR

Part Number: EK-TM4C1294XL

I am using tm4c1294xl and tiva-c-master software here I was able to configure UART2 with loop back test but I am not able use UARTprintf simultaneously I am getting hex character on my console

how to use UART2, as well as UARTprintf in one code, share an example, please

thank you

over 7 years ago

0 Bob Crosby over 7 years ago

TI__Guru 72500 points

Each UART is independent. The only issue with using multiple UARTs at the same time is that you should not use routines that block the CPU. Use the non-blocking functions, interrupts or uDMA. I did a NMEA0183 multiplexer project that used 4 UARTs simultaneously using uDMA for the transmit functions and interrupts for the receive functions. (Sorry, I cannot share that project.)

0 Pavankumar SR over 7 years ago in reply to Bob Crosby

Expert 1685 points

I am not able to use UARTprintf in other c file of same project every time I needed to configure debug functionality
please tell me how to use debug printf in all c files

0 Bob Crosby over 7 years ago in reply to Pavankumar SR

TI__Guru 72500 points

I do not understand your issue. Are you trying to use UARTprintf on two different UARTs? Perhaps it would help if you told me what error you are receiving.

0 Pavankumar SR over 7 years ago in reply to Bob Crosby

Expert 1685 points

If I configure UART2 for tx/rx, and UART0 for debug
I am not able to use "UARTprintf" function, it is printing some junck on the console

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EK-TM4C1294XL: How to use multiple uarts