ftdi-sk9822-blinky.py

#!/usr/bin/env python3

from math import ceil
import pyftdi.gpio

dev = pyftdi.gpio.GpioAsyncController()
dev.open_from_url('ftdi:///1', 0b11)
print(dev)

dev.set_frequency(1000000)
print(dev.frequency)

dev.write(0)

def writeu32(x):
    wdata = b''
    for i in range(32):
        biti = 31 - i
        bit = x & (1 << biti)
        # print(biti, bit)

        if bit:
            wdata += b'\x01\x03'
        else:
            wdata += b'\x00\x02'

    dev.write(wdata)

def setleds(x):
    writeu32(0)
    for ledx in x:
        writeu32(ledx)
    writeu32(0)
    for _ in range(int(ceil(len(x) / 64))):
        writeu32(0)

setleds([
    0xE10000FF,
    0xE100FF00,
    0xE1FF0000,

    0xE1FFFF00,
    0xE1FF00FF,
    0xE100FFFF,

    0xE1FFFFFF,
])