Received Data length is wrong in usb Communication

Sarathk3k · ‎2025-03-22

"static uint8_t USBD_CDC_DataOut(USBD_HandleTypeDef *pdev, uint8_t epnum)"

In stm32u575 controller and in this function while I am calling

"uint32_t receivedLength = USBD_LL_GetRxDataSize(pdev, epnum);" it gives me 1 insted of 6 or 5 bytes I am reciving so that I could not get entire data

TDK · ‎2025-03-22

Probably the data is being split up into several packets. What program is sending the data?

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