# Inspired by https://github.com/pimoroni/pimoroni-pico/blob/8ca47d640523cfb6c3ab262992574dfcfa8527fd/drivers/st7789/st7789_parallel.pio
# rp2.dma docs at https://github.com/micropython/micropython/pull/7670/files
# https://docs.micropython.org/en/latest/library/rp2.PIO.html

import rp2
from machine import Pin

d0 = 0
wr = 8 # GPIO pin number of the write strobe
iterations = 0

def tx_done(arg=None):
    global iterations
    iterations +=1
    print(iterations)