Hi, Thanks all for your recovery methods !
At the moment, I could not yet recover any of the broken parts. I'll try again later. Anyway, all these informations are really valuable. Thx Olivier Fauchon Le mer. 19 déc. 2018 à 16:26, Kaspar Schleiser <[email protected]> a écrit : > Hi Olivier, > > On 12/19/18 8:07 AM, Olivier Fauchon wrote: > > I spent a lot of time trying to save these dead MCUs. > > Did you manage to recover them? > > I was in that situation a couple of times. > It sometimes helps to just retry flashing, hammering the reset button. > The idea is that you want to hit reset so that the debugger tries to > stop the MCU in the (possibly very short) timespan between power-up and > going to sleep. > > $ BOARD=xxx make all (to create the binary) > $ while true; do BOARD=xxx make flash-only; done > > This will fail on its own. Then just start pushing the reset button/pin > often, like a couple of times per second. At this point you don't care > if flashing succeeds, just the initial flash erase starts so on the next > reboot, the board hard-faults but "grabbable" by the debugger. > Once you see that the flasher didn't fail right away but managed to get > hold of the mcu and start erasing, you can stop, reset once more and > hopefully flash a proper image. > > Depending on the user programmer (tool), replacing "make flash-only" > with a faster-executing flash erase command speeds up the process. > > Hope this helps, > Kaspar > _______________________________________________ > users mailing list > [email protected] > https://lists.riot-os.org/mailman/listinfo/users >
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