Using SWD to flash and also have DFU bootloader installed ?

RE: Using SWD to flash and also have DFU bootloader installed ?

Roger Clark — Tue, 04 Jul 2017 11:47:30 GMT

Excellent

Thankyou.

I will read that doc

RE: Using SWD to flash and also have DFU bootloader installed ?

Vidar Berg — Tue, 04 Jul 2017 11:29:08 GMT

Yes, this is possible, you just need to include the bootlaoder settings page. You can generate your own with nrfutil which will contain necessary information for the bootlaoder to validate your application. Instructions can be found here: infocenter.nordicsemi.com/.../nrfutil_settings_generate_display.html

RE: Using SWD to flash and also have DFU bootloader installed ?

Roger Clark — Mon, 03 Jul 2017 07:46:23 GMT

I see IDAPnRFProg is special hardware

I was looking for a SW solution

I'll double check mergehex

RE: Using SWD to flash and also have DFU bootloader installed ?

Roger Clark — Mon, 03 Jul 2017 07:45:15 GMT

OK.

I'll check IDAPnRFProg ..

I thought merge hex, just merged the SD and Application or bootloader hex files, but I'll double check

RE: Using SWD to flash and also have DFU bootloader installed ?

Nguyen Hoan Hoang — Mon, 03 Jul 2017 07:18:01 GMT

The IDAPnRFProg was specifically design for this. It takes care of the CRC for you so the DFU works. I believe mergehex does the same.

RE: Using SWD to flash and also have DFU bootloader installed ?

Roger Clark — Mon, 03 Jul 2017 00:21:10 GMT

I dont think that gets around the problem, because at startup, the bootloader checks the application CRC.

So there would need to be a way to generate the hex for the area in flash that contains the application CRC (written there by the bootloader when the last application was upload via DFU)

I could write an exe or python script etc, to do this, but I wondered whether there is an existing tool that did this

RE: Using SWD to flash and also have DFU bootloader installed ?

Nguyen Hoan Hoang — Mon, 03 Jul 2017 00:12:53 GMT

You can use mergehex provided by Nordic to merge all in one hex then flash it or you can use the IDAPnRFProg with the IDAP-Link and parallel program multiple boards at once.