Modem audio settings
#1
I was looking at the AT+QDAI command, and I have 2 questions:

Why mode is slave ? from the docs it says "when slave mode is selected, master and synchronization clock should be provided", so i guess it is provided on the pp... what is it anyway ?

Clock is 256k... why ? I'd pick 2048k

Thanks.
  Reply
#2
These are settings for the I2S interface providing the audio connection between the modem and the A64. See the schematic to see the connection details. Both ends need to be configured with matching settings for it to work. Modem is slave because A64 is master.
  Reply
#3
(02-03-2023, 09:29 AM)wibble Wrote: These are settings for the I2S interface providing the audio connection between the modem and the A64. See the schematic to see the connection details. Both ends need to be configured with matching settings for it to work. Modem is slave because A64 is master.

Ok thanks!
Strange because I set 2048k and it works... maybe its wasted clock cycles ?
  Reply


Possibly Related Threads…
Thread Author Replies Views Last Post
  Modem white list aular 7 655 02-13-2024, 04:35 PM
Last Post: aular
  qcell modem id aular 6 634 01-15-2024, 10:05 PM
Last Post: aular
  How to play audio from ffmpeg? Manieck71 10 1,644 08-31-2023, 03:02 AM
Last Post: Manieck71
  Temporary fix for Modem Not Coming Back on in SXMO Postmarketos Pinephone kebab 2 1,995 07-16-2023, 11:14 AM
Last Post: kebab
  Modem gets disabled on every suspend jojuma 5 1,669 03-27-2023, 02:51 AM
Last Post: jojuma
  3.5mm jack audio quality? orbital 3 1,870 06-27-2022, 02:05 AM
Last Post: wibble
  The modem switch affects the connection to battery? JohnDoe 2 1,945 03-30-2022, 12:02 AM
Last Post: JohnDoe
  Modem disabled, can't enable: Invalid transition pac 4 3,371 03-23-2022, 01:08 PM
Last Post: Firewave
Question Modem problems with the distros I tried UltraBlack_ 9 5,091 02-21-2022, 01:57 PM
Last Post: KNERD
Big Grin troubleshooting Chatty / modem? no SMS outbound vap0rtranz 5 3,511 02-14-2022, 12:15 PM
Last Post: vap0rtranz

Forum Jump:


Users browsing this thread: 1 Guest(s)