Thread: Bela Board
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Old 09-23-2019, 08:18 AM   #11
mschnell
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Quote:
Originally Posted by cyrano View Post
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 IS (and a very high speed SPI) interface towards the cape. (But I seem to remember that the TI chip does feature IS in hardwate so the PRU should not even be necessary for two channel audio).

The Bela cape provides the IS 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, IS, SPI A/D-D/A).

-Michael
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