manta/doc/javascripts/webTerminal.js

document.getElementById('connectButton').addEventListener('click', selectPort);

async function selectPort(){
    await navigator.serial.requestPort();
}

async function WebTerminal(data){
    let pyodide = await loadPyodide();

    // Load Manta.yaml into pyodide's file system
    pyodide.FS.writeFile("/manta.yaml", data, { encoding: "utf8" });

    // Load micropip, setuptools, manta
    await pyodide.loadPackage("micropip");
    await pyodide.loadPackage("setuptools");
    const micropip = pyodide.pyimport("micropip");
    await micropip.install('../assets/manta-1.0.0-py3-none-any.whl');

    pyodide.runPythonAsync(`
        import asyncio
        import time

        from js import read, write
        from manta.utils import value_to_words

        from manta import Manta
        m = Manta("/manta.yaml")
        print(m.my_io_core)

        async def set_probe(name, value):
            # Write value to core
            probe = m.my_io_core._memory_map.get(name)
            addrs = probe["addrs"]
            datas = value_to_words(value, len(addrs))
            for a, d in zip(addrs, datas):
                await write(a, d)

            # Pulse strobe register
            await write(m.my_io_core._base_addr, 0)
            await write(m.my_io_core._base_addr, 1)
            await write(m.my_io_core._base_addr, 0)

        async def foobar():
            for i in range(10):
                await set_probe(f"LED{i%4}", 1)
                await set_probe(f"LED{i%4}", 0)
                print(i)

        #loop = asyncio.get_event_loop()
        #loop.run_until_complete(foobar())

        async def barfoo():
            print("entering barfoo")
            await write("R0000\\r\\n")
            print(await read())


        loop = asyncio.get_event_loop()
        loop.run_until_complete(barfoo())
        #asyncio.run(foobar()) # doesn't work! asyncio.run() cannot be called from a running event loop
        #await foobar() # doesn't work either! await outside function
        #await barfoo() # doesn't work either! await outside function
    `);
}