Quote:
Originally Posted by cyrano
The PRU is part of the Beaglebone, not the Bela cape.
|
The PRU on the TI chip on the BeagleBone seems to be used to manage a I²S (and a very high speed SPI) interface towards the cape. (But I seem to remember that the TI chip does feature I²S in hardwate so the PRU should not even be necessary for two channel audio).
The Bela cape provides the I²S analog audio converter and the 8 channel SPI A/D D/A converter.
The Software that comes with the Bela provides the Linux Realtime Linux extension and drivers for the hardware (PRU, I²S, SPI A/D-D/A).
-Michael