PL2303 with custom VID/PID

EDAboard.com Forum Index -> PC Programming and Interfacing -> PL2303 with custom VID/PID

Author

Message

dexter98

Joined: 18 Apr 2006
Posts: 4

18 Apr 2006 16:41 pl2303 eeprom

I want to use a PL2303 with a custom VID/PID and I know there is a (software) tool available to do that. But unfortunately it's not freely available (like FTDI on their site).

Does anyone have this tool for me, so I can test my interface with a custom VID/PID?

Thanks!

alzomor

Joined: 09 Jun 2005
Posts: 626
Helped: 31
Location: Cairo

19 Apr 2006 11:06 pl2303 eeprom writer

Hi

for custome PID/VID you need to purchase it from
www.usb.og

some companies sell PID within it's VID for much less price
just serch the web

If you need to edit you discreptors you need to understand the USB specs
or use ready made tools from USB.org you can find some helpful tool

If you need to build a driver
Compuware have a program to help developing drivers.
or you need to study "Windows Driver model" BOOK you can find it here in EDAborad

if your device is HID , you just need to know how to interface with hid.dll of windows ,you can many programs source code doing that

Salam
Hossam Alzomor
www.edaboard.com

dexter98

Joined: 18 Apr 2006
Posts: 4

19 Apr 2006 13:31 pl-2303 eeprom writer

Obtaining a 'free' VID/PID combination is not really a problem, since I can buy a VID/PID combination through www.voti.nl. I don't want it in my application to be detected as a 'standard' USB-to-serial adaptor, especially since I want to use more than one of these devices on the same bus.

The PL2303 is a standard USB-to-serial converter which has a default VID/PID. If an external EEPROM is connected, a custom VID/PID can be set.

The problem is that no information is available about the contents of this EEPROM. A software tool called 'EEPROM Writer Program' is available to program this EEPROM through the PL2303 itself, but I cannot find this tool anywhere. In the past, it was freely available on the manufacturers website, but now not anymore.