NRF52832 NUS and UART

RE: NRF52832 NUS and UART

Jørgen Holmefjord — Wed, 03 Mar 2021 09:32:11 GMT

The default pins for UART on the nRF52832 DK is described on this page. Connect TX from external MCU to RX on the DK (P0.08), and RX from MCU to TX on DK (P0.06).

As awneil mention, you should either cut the solder bridges (SB13-16) on DK to disconnect UART from interface MCU, or use different GPIOs for UART that you define in the application code.

RE: NRF52832 NUS and UART

trobby — Tue, 02 Mar 2021 21:55:16 GMT

Hello,

Thanks for the fast reply. I have disconnected the USB-to-UART from the board and have been using my j-link to program it. I'm still a little fuzzy as to properly how to properly wire this from the MCU to nrf.

RE: NRF52832 NUS and UART

awneil — Tue, 02 Mar 2021 21:46:28 GMT

In the example project you have PC --> UART --> nRF52832 --> NUS. So your situation is no different to that - just replacing PC with MCU

The only thing to note is that you will either have to disconnect the Dev Kit's USB-to-UART from the nRF52832, or configure different pins.

See the Dev Kit documentation (User Guide & Schematics) for details.