Qmk_firmware: Unable to reset

[slipperydippery]

Hi,

I have a planck Rev 4 keyboard (atmega 32u4 chip) . Last week when I reset the board, I couldn't flash it anymore due to an error: Checking memory from 0x0 to 0x6FFF... Not blank at 0x1.

I was told I should follow the ISP flashing guide. So I bought a Pro Micro, and have flashed that using the QMK Toolbox. After some trial and error I now have the board flashed, and have even been able to flash it with my custom keymap. (with much help from HardAsMagnets/Germ)

However, when I try to flash the board via the usb port (make planck:silvernitrate:dfu), I am unable to, because the reset button (and reset key combination) now turn the board off and on again, instead of resetting it and allowing it to be flashed.

_Additional information:_
Because the QMK Toolbox GUI couldn't locate the correct port, I flashed the Pro Micro via command line with the following commands:

avrdude.exe -p atmega32u4 -c avrisp -U flash:w:"C:\Users\zeronothingzero\Keyboards\Toolbox\pro_micro_ISP_B6_10.hex":i -P COM8

and later the planck:

avrdude.exe -p atmega32u4 -c avrisp -U flash:w:"C:\Users\zeronothingzero\Downloads\planck_rev4_silvernitrate.hex":i -P COM8

[yanfali]

Hi @slipperydippery you need to use a slightly different flag when generating an ISP image. :production otherwise it won't have a bootloader. What's going on is you ISP flashed a hex without a bootloader, so when you reset it can't find a bootloader and it jumps straight into the firmware.

Try making a hex like: make planck/rev4:default:production and flash that on using the ISP. Then you should be able to use toolbox again.

You can also just use the
avrdude.exe -p atmega32u4 -c avrisp -U flash:w:"C:\Users\zeronothingzero\Keyboards\Toolbox\pro_micro_ISP_B6_10.hex":i -P COM8
and then flash the firmware using toolbox. The 2nd flash is removing the bootloader.

[slipperydippery]

@yanfali Thanks for the quick reply! Your answer makes sense.

I tried running that command, but I get the error: No rule to make target 'production'.

I also tried make planck:default:production and make planck/rev4:default:prod but still the same error.

[yanfali]

@slipperydippery try this
make planck/rev4:default:production
You want to be in the top level QMK directory path. Not in a keyboard directory.
I just typed that on my mac and it worked. You should end up with:

File sizes:
   text    data     bss     dec     hex filename
      0   27916       0   27916    6d0c planck_rev4_default.hex
      0    3944       0    3944     f68 planck_rev4_default_bootloader.hex
      0   31860       0   31860    7c74 planck_rev4_default_production.hex

You want the production hex.

[slipperydippery]

@yanfali thanks again. I redownloaded the repo (I might have had an old one), and it worked. Sorry for the bother. Going to flash it to the board now

[yanfali]

Feel free to close issue if you feel it has been resolved to your satisfaction.

[slipperydippery]

@yanfali Thanks, it worked perfectly!