UART pins in MDBT50Q.

RE: UART pins in MDBT50Q.

Simonr — Wed, 30 Jan 2019 14:15:42 GMT

RX, TX, CTS and RTS_PIN_NUMBER are all defined in the pca10056.h file in our example projects.

Best regards,

Simon

RE: UART pins in MDBT50Q.

Abhimanyu K K — Wed, 30 Jan 2019 14:06:04 GMT

Thanks sir.

But just one doubt, Is the RX_PIN_NUMBER, TX_PIN_NUMBER and all are inbuilt or new variable.

RE: UART pins in MDBT50Q.

Simonr — Tue, 29 Jan 2019 12:22:43 GMT

In the nRF52840 any GPIO pin, except SWDIO, SWDCLK and USB, can be used as UART pins. I recommend only using those that the MDBT50Q data sheet states to be regular GPIO pins.

#define RX_PIN_NUMBER  NRF_GPIO_PIN_MAP(PORT, PIN)
#define TX_PIN_NUMBER  NRF_GPIO_PIN_MAP(PORT, PIN)
#define CTS_PIN_NUMBER NRF_GPIO_PIN_MAP(PORT, PIN)
#define RTS_PIN_NUMBER NRF_GPIO_PIN_MAP(PORT, PIN)

This is an example on how to define them.

Best of luck and kind regards,

Simon

EDIT: The NFC pins (P0.09 and P0.10) should not be used either. You can use them, but you will have to configure them to regular GPIO pins first.

RE: UART pins in MDBT50Q.

Wojtek — Tue, 29 Jan 2019 11:52:37 GMT

You can use any GPIO as UART pins.