USB pen drive circuit and software for a DIY project.

[siraj]

hi folks,

i am looking for USB pen drive circuit and software for a DIY project.
could somebody please help?

thanks in advance

siraj

 

[okguy]

pendriver cypress

What do you mean ? can you give more details ?

 

[ntfreak]

pendrive schematics project

I presume you are refering to a pocket flash drive, have a look at ST, TI and cypress websites they all have app notes for mass storage devices.

http://www.stmcu.com/inchtml-pages-st7265_pfd.html

I have built one based on the above.
I can send you the orcad schematic/layout if you are interested.
The firmware is available from ST's website

Hope this helps
NTFreak

 

[siraj]

schematic pendriver

hello ntfreak,

yes ur feedback helped very much.by the way approximately how much did you spend on this project( in US dollars please)? did it exceed 50 dollars?

 

[ntfreak]

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