USB Device function on the STM32Cube

yoshiokash · ‎2015-10-01

Posted on October 02, 2015 at 05:14

Hi, I'm making CDC device function on the STM32Cube and STM32F4Discovery.

(Using STM32CUBEMX)

But the USB communication between above and PC(Windows 7 32bit) is interrupted as ''STALL'' after GET_DESCRIPTER(DEVICE QUALIFIER) message and SET_CONFIGURATION message absolutely.

How can I avoid above errors?

Could you please give me any idea?

#discovery #stm32 #usb #device

Amel NASRI · ‎2015-10-07

Posted on October 07, 2015 at 15:39

Hi yoshioka.shinichiro,

Did you increased the heap size after code generation?

Did you tried the CDC example that you may find in Cube package (for other boards, but you may easily port it to Discover board)? Ex: STM32Cube_FW_F4_V1.8.0\Projects\STM324xG_EVAL\Applications\USB_Device\CDC_Standalone.

-Mayla-

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