07-09-2020, 03:23 PM
I have my RPi 4 with Open Auto 9.0 installed.
I'm using the HifiBerry Digi+ Pro HAT, and also the Adafruit PCF8523 RTC break-out board.
The Digi+ uses GPIO 2,3,5,6, and 18-21. The PCF8523 uses GPIO 2 and 3 (SDA1 and SCL1).
I had soldered pin headers to the breakout on the Digi+ to let me connect my RTC to the correct pins, for power, ground, and GPIO 2 & 3.
When my RTC is connected, I do not have any functioning audio. I get kernel errors snd-rpi-wm8804 module. (wm8804 failed to read device id) When I remove the RTC, the Digi+ functions as it should. Obviously, both devices are conflicting with GPIO 2 & 3.
The HiFiBerry GPIO page indicates that these pins "are used by our products for configuration. If you are experienced with I2C, you might add other slave devices. If you a a novice, we don’t recommend this at all."
I have not done any work to install or configure the PCF8523 break out board, yet. Is there a way I can make this work?
Thanks!
I'm using the HifiBerry Digi+ Pro HAT, and also the Adafruit PCF8523 RTC break-out board.
The Digi+ uses GPIO 2,3,5,6, and 18-21. The PCF8523 uses GPIO 2 and 3 (SDA1 and SCL1).
I had soldered pin headers to the breakout on the Digi+ to let me connect my RTC to the correct pins, for power, ground, and GPIO 2 & 3.
When my RTC is connected, I do not have any functioning audio. I get kernel errors snd-rpi-wm8804 module. (wm8804 failed to read device id) When I remove the RTC, the Digi+ functions as it should. Obviously, both devices are conflicting with GPIO 2 & 3.
The HiFiBerry GPIO page indicates that these pins "are used by our products for configuration. If you are experienced with I2C, you might add other slave devices. If you a a novice, we don’t recommend this at all."
I have not done any work to install or configure the PCF8523 break out board, yet. Is there a way I can make this work?
Thanks!