europi

EuroPiGo

Alternate firmware for the Allen Synthesis EuroPi written in Go.

Getting started

Install Go

https://go.dev/doc/install

Install TinyGo

https://tinygo.org/getting-started/install

Install the TinyGo VSCode plugin

https://marketplace.visualstudio.com/items?itemName=tinygo.vscode-tinygo

Build the example

Use the tinygo flash command while your pico is in BOOTSEL mode to compile the script and copy it to your attached EuroPi pico.

tinygo flash --target pico examples/diagnostics.go

NOTE: After the first time you flash your TinyGo program you will no longer need to reboot in BOOTSEL mode to flash your script. Sweet!

Serial printing

When your EuroPi pico is connected via USB you can view printed serial output using a tool like minicom.

For example, a line in your code like:

println(fmt.Sprintf("K1: %2.2f", e.K1.ReadVoltage()))

NOTE: Using the println function handles newlines better than fmt.Println in minicom output.

You can launch minicom to view the printed output:

minicom -b 115200 -o -D /dev/ttyACM0

VSCode build task

Add the TinyGo flash command as your default build task:

Ctrl + Shift + P > Tasks: Configure Default Build Task

Use the following example task configuration to set tinygo flash as your default build command:

{
    "version": "2.0.0",
    "tasks": [
        {
            "label": "tinygo flash",
            "type": "shell",
            "command": "tinygo flash --target pico -size short -opt 1 ${workspaceRoot}/examples",
            "group": {
                "kind": "build",
                "isDefault": true
            },
        }
    ]
}

Now you can build and flash your project using Ctrl + Shift + B or search for the command:

Ctrl + Shift + P > Tasks: Run Build Task

Debugging using picoprobe

TODO

Why should I use this?

You probably shouldn't. This is my passion project because I love Go. You should probably be using the official EuroPi firmware. But if you are interested in writing a dedicated script for the EuroPi that requires concurrency and faster performance than MicroPython can offer, then maybe this is the right firmware for you!