NRF52 on MBN52832DK board UART Communication

[merlot]

I Figured it out. You can delete this question. 

Hello,

I am using MBN52832DK development board which have nrf52832 on it. I am using ble_uart_app and I can communicate with my pc terminal through micro-usb. 

Now I want to communicate with another device via UART and not using micro-usb for UART. I am not sure if this is right place to ask this question but maybe someone used same board before and can help me. 

So my question is, on Murata MBN52832 board there are a few RX/TX/CTS/RTS pins. Which one should I have to use? And should I block micro-usb UART communication by removing resistors (It's manuel says if you want you block micro-usb uart communication you should remove some resistors.)  Finaly, should I connect CTS/RTS pins too, or are they optional? 

I tried it but I couldn't send or get any data. If you help me I would be really appreciated. By the way bound rate and other configurations are correct. I belive I couldn't make right cable connections.

[Simonr]

Hi

I'm not familiar with this board, but configuring which GPIOs are used for UART communication in software should be pretty simple if you're using the ble_app_uart example from our SDK. Most of the pins on from the nRF52832 can be used, so by changing the pin configs in your project to I.E. the P0.15, P0.16, P0.17, and P0.25 should make these pins in charge of UART communication.

Alternatively, in the MBN52832DK user guide, it is stated that you can remove Resistors R39-R42 in order to disconnect the default UART pins from the USB-UART interface. I assume that this would redirect the pins to use P0.05-P0.08 pins on the board for UART instead.

Best regards,

Simon