UART Pins in nRF8122 CFAC package

RE: UART Pins in nRF8122 CFAC package

HLR — Mon, 18 Jun 2018 07:22:21 GMT

ok thanks Hakon Alseth

cleared my doubt thanks

RE: UART Pins in nRF8122 CFAC package

Håkon Alseth — Mon, 18 Jun 2018 07:15:53 GMT

On the nRF52-DK, P0.08 is connected externally as RXD, but this is specific to the nRF52-DK (pca10040). In your board, you can use this GPIO as you'd want. The pin crossbar in the nRF5-series devices is flexible for all digital peripherals, so you can choose which GPIO is used for UART.

Cheers,

Håkon

RE: UART Pins in nRF8122 CFAC package

HLR — Mon, 18 Jun 2018 07:08:57 GMT

Well i have used P0.08 as GPIO it is been routed unlike differential pairs

my goal is to use it as GPIOs but firmware wise they say since it is UART pin it is affecting GPIO functionality

wanted to know any where specifically mentioned about assigned pins for UART , this is will be useful for further reference

RE: UART Pins in nRF8122 CFAC package

Håkon Alseth — Mon, 18 Jun 2018 06:38:28 GMT

Hi,

Any unused GPIO can be used for bus communication, like UART/SPI/TWI.

It all depends on how your have routed this on your own board.

Best regards,

Håkon