Adding large serial number descriptor to FX3 firmware | Cypress Semiconductor
Adding large serial number descriptor to FX3 firmware
I added successfully a serial number descriptor to my firmware. Up to a descriptor size of 62Bytes anything works fine.
With a descriptor size of 64bytes the USB host application "USBTreeView" return "ERROR string descriptor 3 not found".
If I increase the size by 2 bytes to 66Bytes it seems to work fine again.
Is there are FX3 API releated problem, if I use 31 unicode characters + 1 Byte for size + 1 Byte string descriptor ID?
Currently used API: 1.2.3