Skip to content
Snippets Groups Projects
Commit 7e5efe1f authored by Erik Strand's avatar Erik Strand Committed by Erik Strand
Browse files

Link to Adafruit bootloader releases

parent 824cef85
Branches
No related tags found
No related merge requests found
......@@ -21,7 +21,7 @@ Since [Adafruit](https://learn.adafruit.com/adafruit-feather-m4-express-atsamd51
**fair warning**
>Use of the arduino bootloader *does* assume that your circuit has a USB port available, as well as a 32.678kHz clock on the RTC Xout / Xin pins. During cycles, the bootloader (assuming it is on a Feather M4) will toggle 'D13' (PA23) as well as send Neopixel Data to (?).
To get started, find the latest build of the [adafruit bootloader] and download that (probably a `.bin` or `.elf` or `.hex` file).
To get started, find the latest build of the [adafruit bootloader](https://github.com/adafruit/uf2-samdx1/releases) and download that (probably a `.bin` or `.elf` or `.hex` file). The Adafruit Feather M4 uses the SAMD51J19A, so grab that one for the current generation squidworks module.
We need to write this file into the micro's memory. I have been using the `Serial Wire Debug` interface, which is enabled by default on the D51 hardware (but JTAG is also available, but requires an enable pin pulled low somewhere *I think*). `SWCLK is on PA30` and `SWDIO is on PA31`.
......
0% Loading or .
You are about to add 0 people to the discussion. Proceed with caution.
Please register or to comment