slimhase wrote: > Now I am stuck with getting PWM Audio from pCP on piZero: > I followed the linked instrucions: > https://learn.adafruit.com/adding-basic-audio-ouput-to-raspberry-pi-zero/pi-zero-pwm-audio > (admittedly without really knowing what I am doing....) > So, I added this: > dtoverlay=pwm-2chan,pin=18,func=2,pin2=13,func2=4 > to the /boot/config.txt file, which should reroute the BCM pins 13 & 18 > for PWM-Audio at boot. > To be verified via gpio readall, which should show BCM Pin18 on Mode > Alt5 and BCM Pin13 on Mode Alt0 - but these Pins show not these desired > modes, instead Pin18 shows Mode Alt0 and Pin13 shows Mode In > -> What am I doing wrong?? > Can someone help / give hints, .... > > **update** > The above method seems not to work - at least not for me. > However, I found a solution with this help: > https://www.raspberrypi.org/forums/viewtopic.php?t=127585 > Bottomline: you can set the GPIOS directly using the GPIO tool which is > included in pCP w/ these instructions: > gpio -g mode 18 ALT5 (-> PWM0 to GPIO18) > gpio -g mode 13 ALT0 (-> PWM1 to GPIO13) > And I just added these 2 commands in the teaks menue in the 'user > commands' section. > -> Audio on GPIO 13 & 18. Works great so far!
Glad you got it to work. However, I would not expect it to sound any better than a regular pi audio out jack. I found these to be noisy and not exactly hifi. You could probably improve sound with even a cheap hat dac. ------------------------------------------------------------------------ wtnh's Profile: http://forums.slimdevices.com/member.php?userid=36993 View this thread: http://forums.slimdevices.com/showthread.php?t=107901 _______________________________________________ unix mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/unix
