Trying to make a USB HID mouse from cube mx Posted by lucrst on 2016-11-24 14:39 Eureka!! i have find the problem: its coming from the usbd_conf.c 2 values are wrong in the file generated by the cube! USBD_StatusTypeDef USBD_LL_Init (USBD_HandleTypeDef *pdev) { .... hpcd_USB_OTG_FS.Init.dev_endpoints = 6;//