USB control transfer questions

autukuri · ‎2008-07-25

Posted on July 25, 2008 at 18:55

autukuri · ‎2011-05-17

Posted on May 17, 2011 at 12:40

Hello,

I just started working with the Cortex and had a question on the USB HID control transfer.

I am working with the ST CUSTOM HID demo application. I am trying to implement GET_REPORT and SET_REPORT functionality to configure my device. I am having difficulty as to where in the code I can insert my routines to process GET and SET_REPORT. Can anyone point me to any example code or project that implements these transfers using ST's USB libraries?

Thanks in advance.

16-32micros · ‎2011-05-17

Posted on May 17, 2011 at 12:40

Hi,

STM32 has a full package on USB and HID custom demos :

PC Software part :

http://www.st.com/stonline/products/support/micro/files/um0551.zip

http://www.st.com/stonline/products/literature/um/14711.pdf (Manual)

STM32 Firmware Part

http://www.st.com/stonline/products/support/micro/files/um0424.zip

http://www.st.com/stonline/products/literature/um/13465.pdf ( Manual)

Enjoy ! ;)

STOne-32.

autukuri · ‎2011-05-17

Posted on May 17, 2011 at 12:40

Hey, Thanks for the info. Unfortunately, this USB demo application is the one that I am currently working with. I was surprised to see that none of the demos included support or implement HID control requests such as SET and GET_REPORT. Specifically, I notice that the CUSTOM_HID demo defines FEATURE reports in the HID descriptors, but there is no code that I can see that implements the processing of these packets.

I am assuming that the functions CustomHID_Data_Setup and CustomHID_NoData_Setup in usb_prop.c is where you would parse report requests, but my attempts so far have been unsuccessful. Maybe I am missing something?

Thanks!