Re: Question regarding qmk firmware

[Fredrik Salomonsson <plattfot@posteo.net>]

Hi Ekaitz,

Ekaitz Zarraga <ekaitz@elenq.tech> writes:

> Hi Fredrik,
>
> Now what you need to do is call to the `make-avr-toolchain` function from `(gnu packages avr)` to get that.
>
> Maybe the easiest way is to create a `manifest.scm` where you do something like this (i'm doing it by memory):
>
> ``` scheme
> (use-modules (gnu packages avr)
>              (gnu packages flashing-tools)
>              (gnu packages firmware))
>
> (packages->manifest (list (make-avr-toolchain) dfu-programmer qmk))
> ```
>
> Then use `guix shell -m manifest.scm`.
>
> There are other ways to do it, but I find this the easiest.

Thank you for pointing me in the right direction!  This is what I ended
up with:

```scheme
(use-modules
 (gnu packages embedded)
 (gnu packages flashing-tools)
 (gnu packages firmware))

(packages->manifest
 (list (make-arm-none-eabi-nano-toolchain-6)
       dfu-util
       qmk))
```
Then just simply run

```sh
guix shell -m manifest.scm -- qmk flash -kb ergodox_infinity -km plattfot -bl dfu-util-split-left
```
And that worked like a charm.

I had forgotten that my ergodox is using different tools than my kyria.
Also the nano lib threw me for a loop.  I was using the
`make-arm-none-eabi-toolchain-6` at first.

> You can even make a package for your firmware and let guix compile it
> for you (and maybe flash it too?).

Oh, that sounds that it might be useful.  Especially if it can flash it
too.  As I have a few keyboards and not all keymaps are pushed upstream
(yet).

-- 
s/Fred[re]+i[ck]+/Fredrik/g