circuitry of pen drive
I did not really spend a great deal on the project, we only made 5, the big problem was obtaining the nand flash memory, free from samsung eventually, the micros I got from work and the pcb also.
Find attached schematic/layout for a pocket flash drive, the schematic is taken from ST ***.stmcu.com reference design as is the firmware included.
The only improvement that could be added is a ISP header for firmware updates because as yet the 651 usb lib does not support DFU.
Regards
NTFreak