Simple audio in-out code for the ADSP-BF706 EZ-KIT

PatrickG

on Dec 15, 2016

I have an audio in-out program in C for the ADSP-BF706 EZ-KIT mini, about 80 lines in length. It's simple and very easy to understand. It's also completely self-contained - it doesn't use any of the header files that the "TalkThrough_BF706Mini.c" program uses (supplied with the kit). It includes a basic TWI driver, SPORT0 set up and configuration routine for the on board codec (ADAU1761). With some simple modifications it can be used for filtering, both FIR and IIR. The file is attached. All welcome to use free.

PatrickG

BF706_audio_inout.pdf

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mghecea
on Jul 15, 2018 12:37 AM
Why is double buffering necessary? I have clearly showed a method in my

samples that uses DMA in circular mode and the DMA runs itself without

double-buffering assistance. Of course the DMA can also run in linked list

mode, but it's not like you are submitting data where you need write behind

via page flipping mode like you do in graphics...There is a way to setup

the DMA to run circular with very large chunks of audio...Even 1 second

long!

On Sat, Jul 14, 2018, 9:29 AM UweS <analog@analog-vm.hosted.jivesoftware.com>
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mghecea
on Jul 15, 2018 12:37 AM
Why is double buffering necessary? I have clearly showed a method in my

samples that uses DMA in circular mode and the DMA runs itself without

double-buffering assistance. Of course the DMA can also run in linked list

mode, but it's not like you are submitting data where you need write behind

via page flipping mode like you do in graphics...There is a way to setup

the DMA to run circular with very large chunks of audio...Even 1 second

long!

On Sat, Jul 14, 2018, 9:29 AM UweS <analog@analog-vm.hosted.jivesoftware.com>
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Simple audio in-out code for the ADSP-BF706 EZ-KIT