USB HS MSC ULPI speed optimization

[MK..1]

Hi

I finaly got my EMMC/SD Card project running. I can read write to my EMMC with ~30 MB/s on a stm32F4.

At the moment my USB is too slow. In the forum I read that first thing to do is to multiply MSC_MEDIA_PACKET by 2,4,8, ....

THe problem is that as soon as I change the Value of MSC_MEDIA_PACKET windows no longer recognises the USB MSC. I used value MSC_MEDIA_PACKET = 256, 1024, 2048

Non worked. I also increased the size of heap and stack. No success.

Any idea why windows doesnt recognise my USB device with MSC_MEDIA_PACKET other that 512?

[Tesla DeLorean]

Make sure the read/write functionality handles multi-sector operation, validate / instrument