Flash NRF52 on Windows with OpenOCD & FTDI

RE: Flash NRF52 on Windows with OpenOCD & FTDI

flyingfishfinger — Thu, 11 Jan 2018 01:00:07 GMT

I worked it out on Ubuntu, didn't bother with Windows even though I expect it would behave the same.

The latest version of the master version works fine; while it still generates errors the behaviour is correct.

It was also a matter of figuring out which flash and image dumping commands did what I expected ("flash write_image" was the one).

RE: Flash NRF52 on Windows with OpenOCD & FTDI

Jørgen Holmefjord — Wed, 10 Jan 2018 09:23:15 GMT

I guess the links on the OpenOCD discussion page should be a great place to start.

RE: Flash NRF52 on Windows with OpenOCD & FTDI

flyingfishfinger — Tue, 09 Jan 2018 18:58:15 GMT

Yeah, I'm now using the latest master branch with the NRF5* support. I've made some progress and appear to be able to flash (on Ubuntu), but I still get lots of errors and the mass_erase doesn't appear to work properly (neither does dump_image), but seem to be able to flash the example Blinky.hex file and it runs. What's the best way to get support for specific errors and failures?

RE: Flash NRF52 on Windows with OpenOCD & FTDI

Jørgen Holmefjord — Tue, 09 Jan 2018 10:39:17 GMT

The flash driver for nRF support in OpenOCD seems to be named NRF5, not NRF52 like the patch, have you tried this?

RE: Flash NRF52 on Windows with OpenOCD & FTDI

flyingfishfinger — Mon, 08 Jan 2018 19:58:13 GMT

Tried this, without the patch from my initially linked articles it just says "flash driver "nrf52" not found"....

RE: Flash NRF52 on Windows with OpenOCD & FTDI

flyingfishfinger — Mon, 08 Jan 2018 19:32:30 GMT

I've gotten a bit further building it myself on Ubuntu, but I still can't flash.

If I use the current, unpatched version, I get the error " flash driver 'nrf52' not found. Apparently that's what the patch was for.

With the patch applied to the correct commit, I can at least connect and dump registers but flash writes seem to fail.

I'm specifically working with the NRF52840, if that helps.

Should I start a different question if I moved to Ubuntu?

RE: Flash NRF52 on Windows with OpenOCD & FTDI

Andre — Mon, 08 Jan 2018 16:03:44 GMT

NRF52 Support has been merged into upstream OpenOCD on 2017-10-03 However, it seems the latest OpenOCD build by the GNU MCU Eclipse project is based on older sources. Therefore I think the best option is to build it yourself from the latest git sources.

RE: Flash NRF52 on Windows with OpenOCD & FTDI

Nguyen Hoan Hoang — Mon, 08 Jan 2018 15:57:29 GMT

I don't think OpenOCD driver for nRF5x series works with FTDI but this CMSIS-DAP JTAG has software support for nRF5x.

RE: Flash NRF52 on Windows with OpenOCD & FTDI

Jørgen Holmefjord — Mon, 08 Jan 2018 15:34:23 GMT

Hi,

Maybe this tutorial might provide some useful information? It seems to download some binary of OpenOCD for flashing nRF52 from Eclipse on Windows.

Any reasons why you can't build the binaries yourself?

Best regards,

Jørgen