# Example of using PIO writing a parallel byte from data
# for a more wrapped-up examples, see https://github.com/raspberrypi/pico-micropython-examples/blob/master/pio/pio_pwm.py

from machine import Pin
from rp2 import PIO, StateMachine, asm_pio
from time import sleep

@asm_pio(out_init=(rp2.PIO.OUT_LOW,) * 8, out_shiftdir=PIO.SHIFT_RIGHT, 
 autopull=False, pull_thresh=8, push_thresh=8)
def paral_prog():
    label("bitloop")
    #pull()  
    in_(pins,8)
    mov(osr, isr)
    

    out(pins, 8)  
    jmp("bitloop")

paral_sm = StateMachine(
    0, 
    paral_prog,
    freq=10000000,
    in_base=Pin(1, Pin.OUT, Pin.PULL_UP),
    out_base=Pin(15)
    )
Pin(3, Pin.IN, Pin.PULL_UP)





while True:
    for i in range(1000):
 #       paral_sm.put(i)
#        print(i)
        sleep(0.1 )