STM32F303xE - std peripheral library v.1.2.3 + USB-FS-Device_Lib_V4.0.0

[maurizio2]

Posted on September 28, 2016 at 16:55

Dear all,

I will work on an STM32F303VET6 and I have to use USB port.

I developed many functionalities with standard peripheral library, so I would to continue to develop with this library.

The standard library

v.1.2.3 +USB FS device library 4.0.0 (the last one)

 don't support USB with STM32F303xE but only with STM32F303xC. I have already seen the ultimate Cube library and there are changes about USB from 

STM32F303xC to 

STM32F303xE because there is a different dedicated packet buffer memory SRAM access scheme. Is there the possibility of these changes to be inserted to the next standard peripheral library and USB FS device library?

Best regards.

#stm32f303xe-usb-standard-library

[Walid FTITI_O]

Posted on September 29, 2016 at 17:31

Hi girardi.maurizio.001,

I submit your request to our developpment team.

-Hannibal-

[maurizio2]

Posted on September 29, 2016 at 18:50

Thank you for the support! Watching the differences from the cube library 1.5.0 to the USB-FS-Device_Lib_V4.0.0 I've seen these changes:

in usb_regs.h the definition of

  #define _pEPTxAddr(bEpNum) ...

 

  #define _pEPTxCount(bEpNum) ...

 

  #define _pEPRxAddr(bEpNum) ...

 

  #define _pEPRxCount(bEpNum) ...

 

  #define _SetEPRxCount(bEpNum,wCount) ...

in usb_core.c the function Setup0_Process

and in usb_mem.c the functions UserToPMABufferCopy and PMAToUserBufferCopy

Furthermore in STM32F303xE the usb could be in low power mode (this doesn't happen with STMF303xC) so when in interrupt if I see a wake up flag I'll clear the low power status.