CircuitPython version
Adafruit CircuitPython 7.0.0 on 2021-09-20; Adafruit ItsyBitsy RP2040 with rp2040
Code/REPL
# SPDX-FileCopyrightText: 2021 Jeff Epler, written for Adafruit Industries
#
# SPDX-License-Identifier: MIT
#
# Adapted from the example https://github.com/raspberrypi/pico-exa ... /hello_pio
import time
import board
import rp2pio
import adafruit_pioasm
fh_clock_cycle = adafruit_pioasm.assemble(
"""
set pins, 0
set pins, 1
"""
)
sh_clock_cycle = adafruit_pioasm.assemble(
"""
set pins, 0
set pins, 1
"""
)
print("Starting")
sh = rp2pio.StateMachine(
sh_clock_cycle, frequency=800000, first_set_pin=board.D4
)
fh = rp2pio.StateMachine(
fh_clock_cycle, frequency=100000, first_set_pin=board.D0
)
while True:
time.sleep(1)Behavior
Working with PIO to do some clock timing. First example to output with PIO ASM to D4 worked as expected. Trying to add another clock output to D3, D2 etc didn't work. Spent lots of time trying to figure out what was not working in the software.
Started probing around other pins and found the clock cycle that should have been on DO was on D1. Started testing different DX pins and then probing pins would find the clock signal.
Download the appropriate packages for the board so don't think this is a case of the wrong board library.
The following code changing D0 to other pins should allow a review for correctness of pin mapping. D4 for whatever reason is correctly output to D4.
Description
No response
Additional information
No response
CircuitPython version
Code/REPL
Behavior
Working with PIO to do some clock timing. First example to output with PIO ASM to D4 worked as expected. Trying to add another clock output to D3, D2 etc didn't work. Spent lots of time trying to figure out what was not working in the software.
Started probing around other pins and found the clock cycle that should have been on DO was on D1. Started testing different DX pins and then probing pins would find the clock signal.
Download the appropriate packages for the board so don't think this is a case of the wrong board library.
The following code changing D0 to other pins should allow a review for correctness of pin mapping. D4 for whatever reason is correctly output to D4.
Description
No response
Additional information
No response