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Switching off LED on DSP Add-on Board

Mat

January 12, 2025 11:10

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Hey everybody.

Is there a way to switch of the led(s) of the DSP Add-On board?

I have it mounted to the DAC2 HD on a Raspberry Pi 4 and have switch off the pi's leds but could not find any documentation for the DSP leds.

Any help would really mean a lot!

Thanks in advance

Mathi

Date Votes

2 comments

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HiFiBerry team January 13, 2025 06:31

There is no easy way. This would require a custom DSP program that changes the configuration of the DSP's GPIO.

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Mat January 13, 2025 06:44

Thank you for the fast reply!

I found this in your documentation:

https://www.hifiberry.com/docs/hardware/gpio-usage-of-hifiberry-boards/

DSP Products: Beocreate 4 channel amplifier and DAC+ DSP

GPIOs 2,3 are used for configuration. GPIOs 7-11 are used for SPI communication with the DSP, GPIOs 18-21 are used for sound data transmission. GPIOs 27,17,22 are used to control MUTE, RESET and SELFBOOT.

Any chance of reprogramming it with a library like pigpio or RPi.GPIO or am I on the wrong track?

Edited by Mat January 13, 2025 06:45

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