How to use the 2 UART simultaneously in the nRF52840 based MDBT50Q evaluation board.

[Abhimanyu K K]

Sir,

I have one nRF52840 based MDBT50Q evaluation board. I need to configure the 2 UART pins together. How to make it possible???

[Abhimanyu K K]

Sir,

I need 2 RX and 2 TX pin. I want my stm32 to permanently connected to my BLE through one UART and  another one I want to connect to my PC to give some instructions.

[Einar Thorsrud]

I did not get the question here?

As this is a high-level description of parts of what you want to do, I want to mention that we are happy to assist in answering technical question and providing advice, but you have to do the development work yourself.

[testsweng]

I am looking at the sdk15.3 serial_uartes/main.c file and then the project sdk_config.h

where as the UARTE module itself is configured the individual UARTEs are not. 

// <e> NRFX_UARTE_ENABLED - nrfx_uarte - UARTE peripheral driver
//==========================================================
#ifndef NRFX_UARTE_ENABLED
#define NRFX_UARTE_ENABLED 1
#endif
// <o> NRFX_UARTE0_ENABLED - Enable UARTE0 instance
#ifndef NRFX_UARTE0_ENABLED
#define NRFX_UARTE0_ENABLED 0
#endif

// <o> NRFX_UARTE1_ENABLED - Enable UARTE1 instance
#ifndef NRFX_UARTE1_ENABLED
#define NRFX_UARTE1_ENABLED 0
#endif

But later the older UART and individual UART0, UART1 defines are enabled.  The UARTE defines have been in the sdk_config file for now 3 releases.  If they are not used can they be removed as it is very confusing. 

Also I have inherited a sdk15.0 file set that uses 2 uarte ports.  It appears the code uses modifications from this link:  https://devzone.nordicsemi.com/f/nordic-q-a/33558/use-2-uarte-with-sdk15

Is this still valid?

Thank you

[Einar Thorsrud]

Hi,

Please create a new question, as this is not related to the original thread.