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Visitor II
April 1, 2021
Question

STM32 - USB Device Middleware for Generic Bulk Transfer

  • April 1, 2021
  • 0 replies
  • 765 views

I have an existing application using Generic Bulk Transfer. This way, the Host PC can communicate with the device without using COM port. The way it works is just send/receive bytes over 2 endpoints. However, the MiddleWares is only have option for CDC, HID, etc.

This is not really working because the CDC requires to create COM PORT and the HID the packet size is limited to 2 bytes. If I increased the HID packet size, the device cannot be enumerated.

Can someone from STM add the BULK middleware to allow packet size to be 512bytes?

I saw some YouTube videos but it is not really working.

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