Audio on STM32F4_DISCOVERY

[m.daddi]

Hello everyone,
I've seen that Erika seems to support the audio features of the STM32F4 Discovery board indeed:
-for the library "STM32F4_DISCOVERY" it is possible to set the option "USEAUDIO = TRUE;" in the oil config file
-and in the folder "Erika_SVN/contrib/st/STM32F4-Discovery" there are the files "inc/stm32f4_discovery_audio_codec.h" and "src/stm32f4_discovery_audio_codec.c"

I've tried to follow the instructions written in "stm32f4_discovery_audio_codec.c" to playout some sound but I didn't succeed... Does anyone have some code examples? I'm interested both in sound playback and sound acquisition from the microphone.

Thanks in advance!

[m.daddi]

I think I've found how to playback audio, now I'm working on "reading" from the microphone...
Maybe, if someone is interested I will post my results (not early because I'm having an hard-working time)
bye

P.S.
Advices and hints for using the microphone are still welcoma!

[paolo.gai]

Good! If you want to publish a demo we'll be happy to host it as a standard example in ERIKA.

When done just contact us again we'll see how to commit it.

Ciao,

PJ

[m.daddi]

...I forgot to reply to this thread... but I've managed how to record from the integrated mic on the Discovery...
(in 2 different ways, one hackish way importing an external lib -So I've also managed how to include external binary lib that can't get included using the standard, documented, process- and a more clear way using an open source library)
Now I'm working on capturing 2 pdm mics at the same time (rising/falling edge, same clock).

When I'll finish I'll be happy to share my work but, I'll do it after finished and after my University's exames!

Bye

[paolo.gai]

Thanks for the update!

Note that we will be happy to accept a demo in the repository, but only if it contains only open source code...

PJ