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| author |  Drashna Jaelre <drashna@live.com> | 2020-07-18 13:24:23 -0700 |
|---|---|---|
| committer |  GitHub <noreply@github.com> | 2020-07-18 21:24:23 +0100 |
| commit | c4d778a302462929ba71a4746afa1f21f10922c2 (patch) | |
| tree | a333fbe6d573603696ee5a4cf7c50f5d65f756e0 | |
| parent | 82dcb173386be1a5dc867401dca63cde6d0e8121 (diff) | |
| download | qmk_firmware-c4d778a302462929ba71a4746afa1f21f10922c2.tar.gz | |
[Docs] Update ISP Guide (#9748)
* [Doc] Update ISP Guide
Correct the fuses for Caterina, and make the `:production` command more obvious.
* fix casing before fauxpark catches it
| -rw-r--r-- | docs/isp_flashing_guide.md | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/docs/isp_flashing_guide.md b/docs/isp_flashing_guide.md index 8ee5a40d9..9a65fe115 100644 --- a/docs/isp_flashing_guide.md +++ b/docs/isp_flashing_guide.md @@ -141,7 +141,9 @@ To do this manually: ?> It's possible to use other bootloaders here in the same way, but __you need a bootloader__, otherwise you'll have to use ISP again to write new firmware to your keyboard. -To do this the easy way, you can flash the board using the `:production` target when compiling. This compiles the firmware, then compiles the QMK DFU bootloader, and then creates a combined image. Once this is done, you'll see three files: +#### Create QMK DFU Bootloader and Production images + +You can create the firmware, the QMK DFU Bootloader and the production firmware images for the board using the `:production` target when compiling. Once this is done, you'll see three files: * `<keyboard>_<keymap>.hex` * `<keyboard>_<keymap>_bootloader.hex` * `<keyboard>_<keymap>_production.hex` @@ -236,12 +238,12 @@ For Caterina on the `atmega32u4`, these are the fuse settings that you want: | Fuse | Setting| |----------|--------| | Low | `0xFF` | -| High | `0xD9` | -| Extended | `0xC3` | +| High | `0xD8` | +| Extended | `0xCB` | -To set this add `-U lfuse:w:0xFF:m -U hfuse:w:0xD8:m -U efuse:w:0xC3:m` to your command. So the final command should look something like: +To set this add `-U lfuse:w:0xFF:m -U hfuse:w:0xD8:m -U efuse:w:0xCB:m` to your command. So the final command should look something like: - avrdude -c avrisp -P COM3 -p atmega32u4 -U flash:w:main.hex:i -U lfuse:w:0xFF:m -U hfuse:w:0xD8:m -U efuse:w:0xC3:m + avrdude -c avrisp -P COM3 -p atmega32u4 -U flash:w:main.hex:i -U lfuse:w:0xFF:m -U hfuse:w:0xD8:m -U efuse:w:0xCB:m If you are using a different controller or want different configuration, you can use [this AVR Fuse Calculator](http://www.engbedded.com/fusecalc/) to find a better value for you. |