Sparkfun nRF52832 breakout board

RE: Sparkfun nRF52832 breakout board

awneil — Mon, 13 May 2019 09:14:36 GMT

A bit late but, for future reference:

[quote userid="7201" url="~/f/nordic-q-a/35698/sparkfun-nrf52832-breakout-board/137345"]figure out an SWD programming solution[/quote]

is actually easy!

The Sparkfun board has a footprint on it for a standard 10-pin Cortex Debug Header.

With that in place, you can program & debug with a J-Link - including the onboard J-Link on a Nordic DK - or any other suitable SWD debug probe.

See:

https://devzone.nordicsemi.com/f/nordic-q-a/47187/sparkfun-nrf52832-breakout-board-programming-without-nrf52-dk-through-serial-beefy-3-bootloader-and-arduino-ide-for-2-4-ghz-radio-communication-to-nrf24l01/186590#186590

RE: Sparkfun nRF52832 breakout board

AmbystomaLabs — Sun, 24 Jun 2018 23:45:30 GMT

As Nguyen said, try a different board. I feel bad saying that about a Sparkfun product they seem to have a good reputation.

The problem with the Sparkfun board is that it doesn't have a dedicated programmer IC. They preprogram it with a serial bootloader and you will erase that thing and brick it in a heartbeat.

With a lot of difficulty you can probably come with an open source SWD to USB adapter using a cheap FTDI transceiver and some open source code. Perhaps Sparkfun makes such a beast.

But if you spend about $39 you can get an official Nordic DK which has a built in USB interfaced programmer (ie, Segger) and is impossible to brick. Plus it supports all the Nordic software.

So to clarify, your board support UART programming via a custom bootloader. Without digging into it, I don't know if Sparkfun's UART bootloader is compatible with any of the Nordic serial DFU or similar apps. And even if you figure out how to get the Nordic examples to load onto the board you will be forced to keep the bootloader in flash space and never erase it or the device will be bricked until you figure out an SWD programming solution.

Let us know what you end up doing. It looks interesting.

RE: Sparkfun nRF52832 breakout board

Nguyen Hoan Hoang — Sun, 24 Jun 2018 20:52:59 GMT

try this board instead. It's compatible with all SDK examples. www.tindie.com/.../