STM32L432KC nucleo support for USBAudio?

Mbed OS
,
1

Hi, I’m finding in a blank project targeting NUCLEO_L432KC w/ GCC_ARM that USBAudio may not be supported?

% find . -name 'USBAudio.h'
./mbed-os/drivers/USBAudio.h
./mbed-os/features/unsupported/USBDevice/USBAudio/USBAudio.h

I infer this as the type AudioEvent is not defined:

 % rg AudioEvent  
main.cc
7:	//void send_done(AudioEvent &ae);
8:	//void receive_done(AudioEvent &ae);
14:void AudioWorkerData::send_done(AudioEvent &ae) {
17:void AudioWorkerData::receive_done(AudioEvent &ae) {

I’m unable to find a complete example of the USBAudio API’s advanced features. Does one exist? Is my board supported? The mbed page and the STM32 documentation advertises features useful for audio work.

2

My understanding is that at present the L432KC is not supported as an USB device. I did some work for Mbed-OS2 for L432 USB, however this does not work anymore using mbed-os 5.

As long as general USB device support is not enabled for the L432KC we can talk about Audio.
Regards Helmut

PS: I spend already some days with USB Device support for the L432, however not successful so far.
Regards Helmut

3

Ok, thanks for the heads up, I did not think to filter by “USB Device” on the devices page. I suspected they would all be supported. It looks like I will have to go back to CubeMX.