lgpio.error: 'GPIO busy' in test script, R.Pi 5 #60

breaker-of-stone · 2024-08-19T10:54:01Z

Previous work on an R.Pi.4 is throwing an error on the R.Pi.5.

I'm using apa102_pi and the demo script therein:
https://github.com/tinue/apa102-pi/blob/main/runcolorcycle.py

and seeing a 'GPIO busy' exception. Configuration and exception dump follows. How to diagnose?

pinout

Description        : Raspberry Pi 5B rev 1.0
Revision           : d04170
SoC                : BCM2712
RAM                : 8GB

lsb_release -a

No LSB modules are available.
Distributor ID:	Debian  # raspi-OS via R.Pi Imager
Description:	Debian GNU/Linux 12 (bookworm)
Release:	12
Codename:	bookworm

python --version
Python 3.11.2 # distro
venv is engaged

Prior to this situation I encountered:

  File "/noisebin/.venv/lib/python3.11/site-packages/adafruit_blinka/microcontroller/bcm283x/pin.py", line 40, in init
    GPIO.setup(self.id, GPIO.IN)
RuntimeError: Cannot determine SOC peripheral base address

So chose to:

sudo apt remove python3-rpi.gpio
pip3 install rpi-lgpio

/boot/firmware/config.txt has:

dtparam=i2c_arm=on
dtparam=spi=on

[all]
dtoverlay=spi1-3cs

Have enabled SPI in raspi-config for good measure.

pinctrl gives:

116: ip    pd | lo // GPIO16 = input
117: ip    pd | lo // GPIO17 = input
118: ip    pd | lo // GPIO18 = input

gpioinfo says:

line  16:     "GPIO16"   "spi1 CS2"  output   active-low [used]
line  17:     "GPIO17"   "spi1 CS1"  output   active-low [used]
line  18:     "GPIO18"   "spi1 CS0"  output   active-low [used]

Issue follows. Results are identical if running under sudo.

Traceback (most recent call last):
  File "/home/quiet-mode/examples/led-light-drivers/rcc.py", line 47, in <module>
    main()
  File "/home/quiet-mode/examples/led-light-drivers/rcc.py", line 14, in main
    my_cycle.start()
  File "/quiet-mode/.venv/lib/python3.11/site-packages/apa102_pi/driver/colorcycletemplate.py", line 71, in start
    strip = apa102.APA102(num_led=self.num_led, bus_method=self.bus_method, spi_bus=self.spi_bus,
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/quiet-mode/.venv/lib/python3.11/site-packages/apa102_pi/driver/apa102.py", line 130, in __init__
    ce = eval("digitalio.DigitalInOut(board.D" + str(ce) + ")")
         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "<string>", line 1, in <module>
  File "/quiet-mode/.venv/lib/python3.11/site-packages/digitalio.py", line 193, in __init__
    self.direction = Direction.INPUT
    ^^^^^^^^^^^^^^
  File "/quiet-mode/.venv/lib/python3.11/site-packages/digitalio.py", line 223, in direction
    self._pin.init(mode=Pin.IN)
  File "/quiet-mode/.venv/lib/python3.11/site-packages/adafruit_blinka/microcontroller/bcm283x/pin.py", line 40, in init
    GPIO.setup(self.id, GPIO.IN)
  File "/quiet-mode/.venv/lib/python3.11/site-packages/RPi/GPIO/__init__.py", line 696, in setup
    _check(lgpio.gpio_claim_input(_chip, gpio, {
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/quiet-mode/.venv/lib/python3.11/site-packages/lgpio.py", line 755, in gpio_claim_input
    return _u2i(_lgpio._gpio_claim_input(handle&0xffff, lFlags, gpio))
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/quiet-mode/.venv/lib/python3.11/site-packages/lgpio.py", line 458, in _u2i
    raise error(error_text(v))
lgpio.error: 'GPIO busy'

Counter-evidence: Another demo from the apa102_pi repo succeeds, has no errors:
https://github.com/tinue/apa102-pi/blob/main/sample.py

The text was updated successfully, but these errors were encountered:

tinue · 2024-08-19T11:36:33Z

Hello, thanks for the report. It's been a while since I last tried on a Raspberry Pi 5, but it worked at the time. I suspect a chance in Adafruit's Blinka library, which is imported by apa102. Unfortunately I can't test for at least a week, so a resolution might take a while.

breaker-of-stone · 2024-08-19T11:39:04Z

Thanks, would at least welcome verification.

tinue · 2024-08-29T06:16:56Z

Unfortunately I cannot reproduce the error. I have the same Pi 5 revision as you, and I have fully updated/upgraded the OS, and upgraded all Python packages. See the list below.

There is one difference in my setup: After installing apa102-pi, I uninstall it right away (I only want the required dependencies). Then, I use the cloned apa102-pi, and run e.g. ./runcolorcycle.py. You seem to run e.g. .venv/lib/python3.11/site-packages/apa102_pi/driver/colorcycletemplate.py, while I would run ./apa102_pi/driver/colorcycletemplate.py. Could you try this as well?

Edit: I have this package installed by default via apt:

python3-rpi.gpio:
  Installed: 0.7.1~a4-1+b4

lgpio was installed via Adafruit-Blinka, I suspect. It's in the list below. It is not installed via apt, on my system.

Package                                  Version
---------------------------------------- --------
Adafruit-Blinka                          8.47.0
adafruit-circuitpython-bitbangio         1.3.15
adafruit-circuitpython-busdevice         5.2.9
adafruit-circuitpython-connectionmanager 3.1.1
adafruit-circuitpython-requests          4.1.6
adafruit-circuitpython-typing            1.11.0
Adafruit-PlatformDetect                  3.73.0
Adafruit-PureIO                          1.1.11
binho-host-adapter                       0.1.6
certifi                                  2024.7.4
chardet                                  5.2.0
charset-normalizer                       3.3.2
colorzero                                2.0
distro                                   1.9.0
gpiozero                                 2.0.1
idna                                     3.8
lgpio                                    0.2.2.0
pigpio                                   1.78
pip                                      24.2
pycryptodomex                            3.20.0
pyftdi                                   0.55.4
pyserial                                 3.5
python-apt                               2.6.0
pyusb                                    1.2.1
requests                                 2.32.3
RPi.GPIO                                 0.7.1
rpi-ws281x                               5.0.0
setuptools                               74.0.0
six                                      1.16.0
smbus2                                   0.4.3
spidev                                   3.6
ssh-import-id                            5.11
sysv-ipc                                 1.1.0
toml                                     0.10.2
typing_extensions                        4.12.2
urllib3                                  2.2.2
wheel                                    0.44.0

breaker-of-stone · 2024-10-27T06:38:28Z

Martin, For closure I can confirm that I was successful after I followed the 'Full Installation' procedure in the README document. I am now trying to build a more flexible colour cycle component based on the coloraide module: https://facelessuser.github.io/coloraide/interpolation/ I am building a public art project that children can interact with while recycling drink containers. It's complicated! Thank you for your advice, it put me on the right track. 36 Celcius in Perth Western Australia this week.

…

On Thu, Aug 29, 2024 at 2:17 PM Martin ***@***.***> wrote: Unfortunately I cannot reproduce the error. I have the same Pi 5 revision as you, and I have fully updated/upgraded the OS, and upgraded all Python packages. See the list below. There is one difference in my setup: After installing apa102-pi, I uninstall it right away (I only want the required dependencies). Then, I use the cloned apa102-pi, and run e.g. ./runcolorcycle.py. You seem to run e.g. .venv/lib/python3.11/site-packages/apa102_pi/driver/colorcycletemplate.py, while I would run ./apa102_pi/driver/colorcycletemplate.py. Could you try this as well? Package Version ---------------------------------------- -------- Adafruit-Blinka 8.47.0 adafruit-circuitpython-bitbangio 1.3.15 adafruit-circuitpython-busdevice 5.2.9 adafruit-circuitpython-connectionmanager 3.1.1 adafruit-circuitpython-requests 4.1.6 adafruit-circuitpython-typing 1.11.0 Adafruit-PlatformDetect 3.73.0 Adafruit-PureIO 1.1.11 binho-host-adapter 0.1.6 certifi 2024.7.4 chardet 5.2.0 charset-normalizer 3.3.2 colorzero 2.0 distro 1.9.0 gpiozero 2.0.1 idna 3.8 lgpio 0.2.2.0 pigpio 1.78 pip 24.2 pycryptodomex 3.20.0 pyftdi 0.55.4 pyserial 3.5 python-apt 2.6.0 pyusb 1.2.1 requests 2.32.3 RPi.GPIO 0.7.1 rpi-ws281x 5.0.0 setuptools 74.0.0 six 1.16.0 smbus2 0.4.3 spidev 3.6 ssh-import-id 5.11 sysv-ipc 1.1.0 toml 0.10.2 typing_extensions 4.12.2 urllib3 2.2.2 wheel 0.44.0 — Reply to this email directly, view it on GitHub <#60 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ACC7G3LN7WRVNRQ43AGRZ5TZT24G3AVCNFSM6AAAAABMXSM3NOVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDGMJWG44TMNJUGY> . You are receiving this because you authored the thread.Message ID: ***@***.***>

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lgpio.error: 'GPIO busy' in test script, R.Pi 5 #60

lgpio.error: 'GPIO busy' in test script, R.Pi 5 #60

breaker-of-stone commented Aug 19, 2024

tinue commented Aug 19, 2024

breaker-of-stone commented Aug 19, 2024

tinue commented Aug 29, 2024 •

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breaker-of-stone commented Oct 27, 2024 via email

lgpio.error: 'GPIO busy' in test script, R.Pi 5 #60

lgpio.error: 'GPIO busy' in test script, R.Pi 5 #60

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breaker-of-stone commented Aug 19, 2024

tinue commented Aug 19, 2024

breaker-of-stone commented Aug 19, 2024

tinue commented Aug 29, 2024 • edited Loading

breaker-of-stone commented Oct 27, 2024 via email

tinue commented Aug 29, 2024 •

edited

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