Use two UARTEs on the 52840

[JohnCC]

Hi,

  We are developing a new project using the 52840. We need to use two UARTEs. One for connecting to other MCU and one for connecting GPS chip. 

My question is 

If I config two UARTEs for above two chip(Other MCU and GPS). Can I still use RTT log? We use J-Link RTT viewer to view RTT log.

Thank you.

John.

[Priyanka]

Hi John,

Do you wish to know whether concurrent UART and RTT logging is possible?

Best Regards,

Priyanka

[JohnCC]

Hi Priyanka,

    Yes.

UARTE1 - Other MCU

UARTE2 - GPS Chip

Then at the same time, I can see the RTT log on the J-LInk viewer

My idea is because RTT log is sent through J-Link. So it has nothing to do with UART.

Thank you.

John.

[Priyanka]

Hi John,

As you mentioned,

JohnCC said:

because RTT log is sent through J-Link. So it has nothing to do with UART.

this is correct, so both can be used together, but it might not be possible to log the same contents to both RTT and UART, because for the logger you choose one backend.

-Priyanka

[JohnCC]

Hi Priyanka,

     Thank you.