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TMS320F28377S: About USBDCDCInit() of USBL

Part Number: TMS320F28377S

Hi all,

I have a question about USBDCDCInit() of USBL.

F2837xS USB Library USER’S GUIDE (60page) is described as "Returns:Returns NULL on failure or the psCDCDevice pointer on success.".

But this function does not return NULL no matter what I entered argument .

When does this function return NULL?

When will it detect a failure?

Best regards,

Sasaki