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Issues using USB MSC Host Libraries

Question asked by TeeJay on Nov 10, 2017
Latest reply on Nov 13, 2017 by TeeJay

I have recently added USB support to a product, using the STM32_USB_Host_Library MSC class taken from the STM32Cube_FW_F2_V1.7.0 examples.


We successfully detect devices and write and read from the disk until we get a DISK io error.


Successive calls to either USBH_MSC_Write() or USBH_MSC_Read() fail as the MSC_Handle->unit[lun].state is either in MSC_READ or MSC_WRITE, not MSC_IDLE


Have you any clue how this could occur ?