GPIO Pins Used By AudioInjector

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epalaima
Posts: 6
Joined: Mon Aug 01, 2016 7:54 am

GPIO Pins Used By AudioInjector

Post by epalaima » Tue Feb 14, 2017 5:39 pm

What GPIO pins does the audio injector use in interfacing with the codec? I could have sworn I saw this information posted at some point but cannot seem to find it now.

I was trying to use GNU Screen to connect to the Pi from my laptop and it was not working. I use this all the time on other Pi's and it works great so I am thinking the problem might be that the AudioInjector uses the txd and rxd pins, meaning that I can no longer use them for serial communication.

Please let me know.

Thanks!

flatmax
Posts: 609
Joined: Sat Jul 23, 2016 11:39 pm

Re: GPIO Pins Used By AudioInjector

Post by flatmax » Wed Feb 15, 2017 8:58 am

You can find that information available here :
viewtopic.php?f=5&t=4

I don't think it uses the serial pins.

thanks
Matt
Check out our audiophile quality crossovers : https://bit.ly/2kb1nzZ
Please review the Zero sound card on Amazon USA : https://www.amazon.com/dp/B075V1VNDD
---
Check out our new forum on github : https://github.com/Audio-Injector

epalaima
Posts: 6
Joined: Mon Aug 01, 2016 7:54 am

Re: GPIO Pins Used By AudioInjector

Post by epalaima » Fri Mar 10, 2017 2:46 am

I think it does. According to the diagram you posted TXD0 and RXDO are being used for the BITCLOCK. Unless I am reading something incorrectly?

flatmax
Posts: 609
Joined: Sat Jul 23, 2016 11:39 pm

Re: GPIO Pins Used By AudioInjector

Post by flatmax » Fri Mar 10, 2017 8:57 am

I think the UART pins are free, bitclock is on GPIO18.

Matt
Check out our audiophile quality crossovers : https://bit.ly/2kb1nzZ
Please review the Zero sound card on Amazon USA : https://www.amazon.com/dp/B075V1VNDD
---
Check out our new forum on github : https://github.com/Audio-Injector

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