raspberrypi: support PIO on high pins #9901
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ping @ladyada |
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Thank you for doing all this work! The macros to manipulate bitmasks are a nice addition. At first I thought they were pre-existing, but I saw that you added them.
- I merged the Pico-PIO-USB update. Could you update to the merge commit? Thanks.
- I tested I2SOut on Feather RP2040. I happened to have a test program that played a tone. No sound comes out with this build. Feather RP2040 PropMaker would also be an easy test board.
test program: this was adapted from a test program someone else had supplied for testing something else entirely
import array
import audiocore
import audiobusio
import board
import math
import time
# I2S audio out
audio = audiobusio.I2SOut(board.D9, board.D10, board.D11)
# Generate one period of sine wave.
length = 8000 // 440
sine_wave = array.array("H", [0] * length)
for i in range(length):
val = int(math.sin(math.pi * 2 * i / length) * (2 ** 15 - 1) + 2 ** 15)
sine_wave[i] = val
sine_wave = audiocore.RawSample(sine_wave, sample_rate=8000)
while True:
audio.play(sine_wave, loop=True)
time.sleep(2)
audio.stop()these were inverted but didn't notice before since the macro was too
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OK I think this is right now. There were a variety of problems but all caused by just a couple of bits of wrong thinking. testing performed:
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I'm skeptical about this, but I just put this artifact on a Solder Party 2350 Stamp XL in the RP2xxx carrier board and it's resulting in a boot straight to safe mode. |
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@RetiredWizard I tried artifacts from https://github.com/adafruit/circuitpython/actions/runs/12678008250 on my proto Metro RP2350 (RP2350B). The board UF2 works with no safe mode, and so does the Solder Party 2350 Stamp XL UF2. There is no interesting code.py. |
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Okay, well I'm getting the safe mode boot with stable as well so I'll do some more digging to see if it's just my board. I deleted code.py/main.py just to be sure 😁 |
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Definitely something on my end, I just had good boots from 9.2.0, then 9.2.1 and now the firmware you linked is working fine. Sorry for the false alarm.... |
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@RetiredWizard np - thank you for testing! |
Testing performed: on a Metro RP2350 prototype, used
neopixel_writeon pin A0 (GPIO41) & scoped it.Also, the built in neopixel still works.
Note that this does not enable USB Host on the 4-pin header, see sekigon-gonnoc/Pico-PIO-USB#133This also fixes USB Host, though it depends on an additional pull request: adafruit/Pico-PIO-USB#1 (us) or sekigon-gonnoc/Pico-PIO-USB#157 (upstream)
Closes: #9897