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Hello every body.
I work on Keil 4.54 and stm32discovery board (stm32F407VG). It is a cortex m4. I execute succesfully a rl-usb and hid program. But whenever I try to make an audio device, i fail.
I enable the audio class device, initialize USB and connect it. But host (Windows 7 64bits) does not detect any device even if i check port under usblyzer.
Have you an idea of the problem?
Sébastien
I tested both the keil library with specific driver for the controller and the st library. Those two driver give me the same behaviour.