Hello,
What speed mode uses the USB bootloader? High-speed or full-speed? Is it somehow configurable?
We have problem with booting from USB. I think it could be related to the USB speed mode. We have galvanically isolated USB and it is suitable for full-speed only. We have produced several identical boards with C5505. There is no problem with few boards with USB boot. But most boards are marked as 'Unknown device' on PC (Win7) after connecting via USB. I have found If I connect these 'bad' boards to another PC (Win7 too) then USB identification is ok and USB boot is done successfuly. But on most PCs it is 'Unknow device'. Do you have an idea how to solve this?
Best regards,
Jiri Babka
