Part of My GPIO Interface Doesn't Work

#1

GPIO number 154 156 157 … and more.
These were work several days ago. I have a simple script to enable the LED:

from periphery import GPIO
import time

RED_PIN = 154
AMBER_PIN = 156
GREEN_PIN = 157

# Open GPIO /dev/gpiochip0 line 10 with input direction
led_red = GPIO(RED_PIN, "out")
# Open GPIO /dev/gpiochip0 line 12 with output direction
led_amber = GPIO(AMBER_PIN, "out")
led_green = GPIO(GREEN_PIN, "out")

while True:
    led_red.write(True)
    time.sleep(1)
    led_red.write(False)
    led_amber.write(True)
    time.sleep(1)
    led_amber.write(False)
    led_green.write(True)
    time.sleep(1)
    led_green.write(False)

Same code, I have try different OS , like Debian and Ubuntu.
My gpioinfo output doesn’t show any PinName, just like this:

gpiochip0 - 32 lines:
        line   0:      unnamed       unused   input  active-high
        line   1:      unnamed       unused   input  active-high
        line   2:      unnamed       unused   input  active-high
        line   3:      unnamed       unused   input  active-high
        line   4:      unnamed "host-wakeup" input active-high [used]
        line   5:      unnamed       unused   input  active-high
        line   6:      unnamed       unused   input  active-high
        line   7:      unnamed         "cd"   input   active-low [used]
        line   8:      unnamed       unused   input  active-high
        line   9:      unnamed   "shutdown"  output  active-high [used]
        line  10:      unnamed      "reset"  output   active-low [used]
        line  11:      unnamed       unused   input  active-high
        line  12:      unnamed       unused   input  active-high
        line  13:      unnamed       unused   input  active-high
        line  14:      unnamed       unused   input  active-high
        line  15:      unnamed       unused   input  active-high
        line  16:      unnamed       unused   input  active-high
        line  17:      unnamed       unused   input  active-high
        line  18:      unnamed       unused   input  active-high
        line  19:      unnamed       unused   input  active-high
        line  20:      unnamed       unused   input  active-high
        line  21:      unnamed       unused   input  active-high
        line  22:      unnamed       unused   input  active-high
        line  23:      unnamed       unused   input  active-high
        line  24:      unnamed       unused   input  active-high
        line  25:      unnamed       unused   input  active-high
        line  26:      unnamed       unused   input  active-high
        line  27:      unnamed       unused   input  active-high
        line  28:      unnamed       unused   input  active-high
        line  29:      unnamed       unused   input  active-high
        line  30:      unnamed       unused   input  active-high
        line  31:      unnamed       unused   input  active-high

I am start wondering does my rock pi 4 plus broken.

#2

I start feel this is because of somewhere broken. Because I tired CircuitPython, same behavior.

Some of the Pin just doesn’t work.

example:

[GCC 10.2.1 20210110] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import board
>>> board.
board.ADC_IN0   board.D15       board.D23       board.D31       board.D38       board.MISO      board.SCL2      board.SDA6      board.UART4_TX  board.pin
board.CS        board.D16       board.D24       board.D32       board.D40       board.MOSI      board.SCL6      board.SDA7      board.UART_RX   board.sys
board.D10       board.D18       board.D27       board.D33       board.D5        board.PWM0      board.SCL7      board.SPI(      board.UART_TX
board.D11       board.D19       board.D28       board.D35       board.D7        board.PWM1      board.SCLK      board.UART2_RX  board.ap_board
board.D12       board.D21       board.D29       board.D36       board.D8        board.SCK       board.SDA       board.UART2_TX  board.board_id
board.D13       board.D22       board.D3        board.D37       board.I2C(      board.SCL       board.SDA2      board.UART4_RX  board.detector
>>> led = digitalio.DigitalInOut(board.D18)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: name 'digitalio' is not defined
>>> import digitalio
>>> led = digitalio.DigitalInOut(board.D18)
>>> led.direction = digitalio.Direction.OUTPUT
>>> led.value = True
>>> led = digitalio.DigitalInOut(board.D3)
>>> led = digitalio.DigitalInOut(board.D6)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: module 'board' has no attribute 'D6'
>>> led = digitalio.DigitalInOut(board.D16)
>>> led.value = True
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python3.9/dist-packages/digitalio.py", line 210, in value
    raise AttributeError("Not an output")
AttributeError: Not an output
>>> led.direction = digitalio.Direction.OUTPUT
>>> led.value = True
>>> led = digitalio.DigitalInOut(board.D3)
>>> led.direction = digitalio.Direction.OUTPUT
>>> led.value = False
>>>

For D3 , it works fine , but for D16(154) D18(156) it just doesn’t work.

#3

Hi guys,
i’ve the same issue but on all GPIO lines… i’can’t do anything… Below my gpioinfo command:

gpiochip0 - 32 lines:
	line   0:      unnamed       unused   input  active-high 
	line   1:      unnamed       unused   input  active-high 
	line   2:      unnamed       unused   input  active-high 
	line   3:      unnamed       unused   input  active-high 
	line   4:      unnamed       unused   input  active-high 
	line   5:      unnamed       unused   input  active-high 
	line   6:      unnamed       unused   input  active-high 
	line   7:      unnamed       unused   input  active-high 
	line   8:      unnamed       unused   input  active-high 
	line   9:      unnamed       unused   input  active-high 
	line  10:      unnamed      "reset"  output   active-low [used]
	line  11:      unnamed       unused   input  active-high 
	line  12:      unnamed       unused   input  active-high 
	line  13:      unnamed       unused   input  active-high 
	line  14:      unnamed       unused   input  active-high 
	line  15:      unnamed       unused   input  active-high 
	line  16:      unnamed       unused   input  active-high 
	line  17:      unnamed       unused   input  active-high 
	line  18:      unnamed       unused   input  active-high 
	line  19:      unnamed       unused   input  active-high 
	line  20:      unnamed       unused   input  active-high 
	line  21:      unnamed       unused   input  active-high 
	line  22:      unnamed       unused   input  active-high 
	line  23:      unnamed       unused   input  active-high 
	line  24:      unnamed       unused   input  active-high 
	line  25:      unnamed       unused   input  active-high 
	line  26:      unnamed       unused   input  active-high 
	line  27:      unnamed       unused   input  active-high 
	line  28:      unnamed       unused   input  active-high 
	line  29:      unnamed       unused   input  active-high 
	line  30:      unnamed       unused   input  active-high 
	line  31:      unnamed       unused   input  active-high 
gpiochip1 - 32 lines:
	line   0:      unnamed       unused   input  active-high 
	line   1:      unnamed       unused   input  active-high 
	line   2:      unnamed       unused   input  active-high 
	line   3:      unnamed "vcc5v0-typec-regulator" output active-high [used]
	line   4:      unnamed       unused   input  active-high 
	line   5:      unnamed       unused   input  active-high 
	line   6:      unnamed       unused   input  active-high 
	line   7:      unnamed       unused   input  active-high 
	line   8:      unnamed       unused   input  active-high 
	line   9:      unnamed       unused   input  active-high 
	line  10:      unnamed       unused   input  active-high 
	line  11:      unnamed       unused   input  active-high 
	line  12:      unnamed       unused   input  active-high 
	line  13:      unnamed       unused   input  active-high 
	line  14:      unnamed       unused   input  active-high 
	line  15:      unnamed       unused   input  active-high 
	line  16:      unnamed       unused   input  active-high 
	line  17:      unnamed       unused   input  active-high 
	line  18:      unnamed       unused   input  active-high 
	line  19:      unnamed       unused   input  active-high 
	line  20:      unnamed       unused   input  active-high 
	line  21:      unnamed       unused   input  active-high 
	line  22:      unnamed       unused   input  active-high 
	line  23:      unnamed       unused   input  active-high 
	line  24:      unnamed       unused   input  active-high 
	line  25:      unnamed       unused   input  active-high 
	line  26:      unnamed       unused   input  active-high 
	line  27:      unnamed       unused   input  active-high 
	line  28:      unnamed       unused   input  active-high 
	line  29:      unnamed       unused   input  active-high 
	line  30:      unnamed       unused   input  active-high 
	line  31:      unnamed       unused   input  active-high 
gpiochip2 - 32 lines:
	line   0:      unnamed       unused   input  active-high 
	line   1:      unnamed       unused   input  active-high 
	line   2:      unnamed       unused   input  active-high 
	line   3:      unnamed       unused   input  active-high 
	line   4:      unnamed       unused   input  active-high 
	line   5:      unnamed       unused   input  active-high 
	line   6:      unnamed       unused   input  active-high 
	line   7:      unnamed       unused   input  active-high 
	line   8:      unnamed       unused   input  active-high 
	line   9:      unnamed       unused   input  active-high 
	line  10:      unnamed       unused   input  active-high 
	line  11:      unnamed       unused   input  active-high 
	line  12:      unnamed       unused   input  active-high 
	line  13:      unnamed       unused   input  active-high 
	line  14:      unnamed       unused   input  active-high 
	line  15:      unnamed       unused   input  active-high 
	line  16:      unnamed       unused   input  active-high 
	line  17:      unnamed       unused   input  active-high 
	line  18:      unnamed       unused   input  active-high 
	line  19:      unnamed       unused   input  active-high 
	line  20:      unnamed       unused   input  active-high 
	line  21:      unnamed       unused   input  active-high 
	line  22:      unnamed       unused   input  active-high 
	line  23:      unnamed       unused   input  active-high 
	line  24:      unnamed       unused   input  active-high 
	line  25:      unnamed       unused   input  active-high 
	line  26:      unnamed       unused   input  active-high 
	line  27:      unnamed       unused   input  active-high 
	line  28:      unnamed       unused   input  active-high 
	line  29:      unnamed       unused   input  active-high 
	line  30:      unnamed       unused   input  active-high 
	line  31:      unnamed       unused   input  active-high 
gpiochip3 - 32 lines:
	line   0:      unnamed       unused   input  active-high 
	line   1:      unnamed       unused   input  active-high 
	line   2:      unnamed       unused   input  active-high 
	line   3:      unnamed       unused   input  active-high 
	line   4:      unnamed       unused   input  active-high 
	line   5:      unnamed       unused   input  active-high 
	line   6:      unnamed       unused   input  active-high 
	line   7:      unnamed       unused   input  active-high 
	line   8:      unnamed       unused   input  active-high 
	line   9:      unnamed       unused   input  active-high 
	line  10:      unnamed       unused   input  active-high 
	line  11:      unnamed       unused   input  active-high 
	line  12:      unnamed       unused   input  active-high 
	line  13:      unnamed       unused   input  active-high 
	line  14:      unnamed       unused   input  active-high 
	line  15:      unnamed "snps,reset"  output   active-low [used]
	line  16:      unnamed       unused   input  active-high 
	line  17:      unnamed       unused   input  active-high 
	line  18:      unnamed       unused   input  active-high 
	line  19:      unnamed       unused   input  active-high 
	line  20:      unnamed       unused   input  active-high 
	line  21:      unnamed       unused   input  active-high 
	line  22:      unnamed       unused   input  active-high 
	line  23:      unnamed       unused   input  active-high 
	line  24:      unnamed       unused   input  active-high 
	line  25:      unnamed "vcc3v3-pcie-regulator" output active-high [used]
	line  26:      unnamed       unused   input  active-high 
	line  27:      unnamed       unused   input  active-high 
	line  28:      unnamed  "user-led1"  output   active-low [used]
	line  29:      unnamed  "user-led2"  output  active-high [used]
	line  30:      unnamed  "vbus-host"  output  active-high [used]
	line  31:      unnamed       unused   input  active-high 
gpiochip4 - 32 lines:
	line   0:      unnamed       unused   input  active-high 
	line   1:      unnamed       unused   input  active-high 
	line   2:      unnamed       unused   input  active-high 
	line   3:      unnamed       unused   input  active-high 
	line   4:      unnamed       unused   input  active-high 
	line   5:      unnamed       unused   input  active-high 
	line   6:      unnamed       unused   input  active-high 
	line   7:      unnamed       unused   input  active-high 
	line   8:      unnamed       unused   input  active-high 
	line   9:      unnamed       unused   input  active-high 
	line  10:      unnamed       unused   input  active-high 
	line  11:      unnamed       unused   input  active-high 
	line  12:      unnamed       unused   input  active-high 
	line  13:      unnamed       unused   input  active-high 
	line  14:      unnamed       unused   input  active-high 
	line  15:      unnamed       unused   input  active-high 
	line  16:      unnamed       unused   input  active-high 
	line  17:      unnamed       unused   input  active-high 
	line  18:      unnamed       unused   input  active-high 
	line  19:      unnamed       unused   input  active-high 
	line  20:      unnamed       unused   input  active-high 
	line  21:      unnamed       unused   input  active-high 
	line  22:      unnamed       unused   input  active-high 
	line  23:      unnamed       unused   input  active-high 
	line  24:      unnamed       unused   input  active-high 
	line  25:      unnamed       unused   input  active-high 
	line  26:      unnamed       unused   input  active-high 
	line  27:      unnamed       unused  output  active-high 
	line  28:      unnamed       unused   input  active-high 
	line  29:      unnamed       unused   input  active-high 
	line  30:      unnamed       unused   input  active-high 
	line  31:      unnamed       unused   input  active-high

Anyone can help me to understand the issue?.. the board is broken?.. i bought this board for replace rpi 4b…

#4

In my case , it was work several days ago.
In the recent days , I upgraded the kernel to latest 5.10.110-11 with apt command.

I don’t recall I did anything else.
After I found the problem, I downgrade to 5.10.110-8. Still doesn’t work.

Hi @St3fano83, I am wondering did you do the same upgrade?

#5

now i’m on armbian and my kernel version is 5.15.93-rockchip64

#6

I tried armbian as well, but it doesn’t works.

#7

It looks like we didn’t do libgpiod support before on the board of rock4 series, and i’ll check and fix this issue later.

#8

Maybe worth nothing , I uninstall libgpiod package, still can not light LED through these PINs.

#9

Is it also uncontrollable with the sysfs interface?

#10

for example:

echo 154 > /sys/class/gpio/export
echo output > /sys/class/gpio/gpio154/direction
echo 1 > /sys/class/gpio/gpio154/value
echo 0 > /sys/class/gpio/gpio154/value

if it doesn’t work, maybe the hardware broken.

#11

Unfortunately, it doesn’t work. As my testing, all GPIO Pins which in GPIO4 died.

Can I send my board to your company to repair it?

#12

Are you in China ? If so, you can find our maintenance engineer in the wechat group and ask him to help take a look.

#13

Yes, I do.
Where can I find the QRCode for the wechat group?

Thanks !

#14

I have joined the wechat group which found here: 关于 | Radxa Docs

Also the QQ group.

But I am the only customer in the wechat group and no one answer my question yet.

And I didn’t get approval for the QQ group so far.

#15

You can @ our team member in the WeChat group.

#17

收到！非常感谢！
我会随机器附上一张说明纸条。