gobadger

Exploration of running go on the badger on a WSL Instance. I am using Ubuntu 22.04

Getting started.

• plug in badger to Windows USB
• install USB on WSL see below
• install tinygo
• build local
• Manual deploy

This is a link to running tinygo on the badger https://tinygo.org/docs/reference/microcontrollers/badger2040/

The first step is getting example1 to run

USB on WSL

To connect to the badger you need USB. This is not mapped in wsl so you need to use usbip-win according to Microsoft connect usb. This worked smoothly apart from having to reset the badger and use admin for windows command.

Other Projects:

• https://github.com/strideynet/badger2040-go just getting started
• https://github.com/emmaly/tinygo-garden

Build local

Using tinygo build -target=badger2040 -o example1 . Have to use . as target rather than ./main.go as shapes is part of main package. End up with a 734k package example1.

Then to flash it is:

tinygo flash -target=badger2040 .

Manual deploy

A way of loading images is to use the UF2. If you build with tinygo

cd example1
tinygo build -target=badger2040 -o badger2040_button.uf2 .

• Move the uf2 file to my Windows transfer directory (C:\t /mnt/c/t) I use a transfer directory as before perhaps with WSL 1 i have had strange things happening but never if I use WSL to copy and move files to and from Windows.
• mv badger2040_button.uf2 /mnt/c/t
• Then move to the windows machine
• then reboot the badger (hold down BOOT/USR on the Pico then press reset on the back of the badger board) the drive pops as a dmass storage device.
• Then copy the UF2 file to the drive
• the rpi reboots using the image
• Success!

WIP Getting the serial port to work

I haven't yet got the serial port downloading to work

The first time I tried the flash command it didn't work. I had attached the USB device as per [Microsoft connect usb][] and when I did (every time you reset the Badger board it reset):

lsbusb

I get a listing showing the board is connected:

Bus 001 Device 004: ID 2e8a:0005 MicroPython Board in FS mode`

Trying to find the tty port:

dmesg | grep tty

Installed minicom and changed the setting port to dev/ttyACM0 and that did connect although I couldn't do anything. So retry flashing

tinygo flash -target=badger2040 -port=/dev/ttyACM0 .

And now get:

error: failed to flash /tmp/tinygo2787660771/main.uf2: unable to locate any volume: [RPI-RP2]

tinygo flash -target=badger2040 -o /run/media/$USER/PYBADGEBOOT/firmware.uf2 -port=/dev/ttyACM0 .

Maybe this is it - As with any RP2040 based wotsit you just need to hold down the boot select (labelled BOOT/USR on Badger 2040) while you reset the board. That will bring it up in DFU mode which appears as a disk and you can drag and drop the .uf2 onto it.