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HDMI and Power LED dead after using this dtb file #5

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jiejiecn opened this issue Sep 7, 2023 · 7 comments
Closed

HDMI and Power LED dead after using this dtb file #5

jiejiecn opened this issue Sep 7, 2023 · 7 comments
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@jiejiecn @mamin27
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enhancement New feature or request

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@jiejiecn
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jiejiecn commented Sep 7, 2023

After using this dtb file, the power LED is dead. Confused me a lot with the device status.

And there's no signal on HDMI output.
@jiejiecn
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jiejiecn commented Sep 8, 2023

To be clear, the blue LED indicate for the system status is dead. Not the green LED.

@mamin27
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mamin27 commented Sep 25, 2023

Hmm. I will check out of HDMI output signal. You are right about blue LED. If you have some advice let me know.

@jiejiecn
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According to the PCB design, PC13 is the STATUS_LED output.

In the dts file, I can only find the related section around line 483
image

Maybe you can try to remove those lines and have a try.

@mamin27
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mamin27 commented Sep 29, 2023

Thanks, I will test it during weekend.

@mamin27
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mamin27 commented Oct 2, 2023 •
edited

Yes, LED (blue) is working now.

  1. add OPi.GPIO library at the mangopi mq-quad (see package description part install OPi.GPIO lib)
  2. run script led_mq_quad.py (flashing of LED)
  3. dbd file was updated under your recommendation.

Note: I will be glad for the supporting star.

@mamin27 mamin27 added the enhancement New feature or request label Oct 2, 2023
@mamin27
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mamin27 commented Oct 3, 2023

Here is how it works:

flashing_blue_led

@mamin27
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mamin27 commented Oct 3, 2023

pin 77 (PC13): GPIO 300b000.pinctrl:77 <-- LED PIN

root@mangopi:/sys/kernel/debug/pinctrl/300b000.pinctrl# cat pinmux-pins | grep PI
pin 74 (PC10): GPIO 300b000.pinctrl:74
pin 76 (PC12): GPIO 300b000.pinctrl:76
pin 77 (PC13): GPIO 300b000.pinctrl:77
pin 210 (PG18): GPIO 300b000.pinctrl:210
pin 256 (PI0): device 5097000.ahub-i2s0 function i2s0 group PI0
pin 257 (PI1): device 5097000.ahub-i2s0 function i2s0 group PI1
pin 258 (PI2): device 5097000.ahub-i2s0 function i2s0 group PI2
pin 259 (PI3): device 5097000.ahub-i2s0 function i2s0_din1 group PI3
pin 260 (PI4): device 5097000.ahub-i2s0 function i2s0_dout1 group PI4
pin 261 (PI5): UNCLAIMED
pin 262 (PI6): UNCLAIMED
pin 263 (PI7): device 5002400.i2c function i2c1 group PI7
pin 264 (PI8): device 5002400.i2c function i2c1 group PI8
pin 265 (PI9): device 5002800.i2c function i2c2 group PI9
pin 266 (PI10): device 5002800.i2c function i2c2 group PI10
pin 267 (PI11): UNCLAIMED
pin 268 (PI12): UNCLAIMED
pin 269 (PI13): UNCLAIMED
pin 270 (PI14): UNCLAIMED
pin 271 (PI15): UNCLAIMED
pin 272 (PI16): UNCLAIMED

@mamin27 mamin27 closed this as completed Oct 6, 2023
@mamin27 mamin27 mentioned this issue Oct 6, 2023
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@jiejiecn jiejiecn

@mamin27 mamin27

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enhancement New feature or request
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mangopi MQ-Quad
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@jiejiecn @mamin27