AVR-Chat

On Sun, 27 Feb 2005 08:05:41 -0700, you wrote:

>
>
>>
>>
>> >
>> >> On 25 Feb 2005, at 19:14, Jim White wrote:
>> >>
>> >>> We are developing a board that will be a USB device (not host) using a
>> >>> CP2101.
>> >>>
>> >>> Is there some sort of central registry for Vendor ID and / or Product ID
>> >>> ?
>> >>>
>> >>> This will not be a mass market device but will need to recognizable as a
>> >>> unique device when plugged into a PC.
>> >
>> >With the FTDI chips and EEPROM's, this should be no problem at all, as
>> >each device will have a unique serial number.
>> >
>> >If you want a VID/PID, talk to FTDI, they may assign you a unique PID
>> >(if they have any left !)
>>
>>AFAIK the serial number will not ensure the correct driver is loaded - it 
>>only copes with multiple
>>devices of the same type plugged in at once.
>>
>>If FTDI are assigning PIDs numerically, perhaps they will run out in the 
>>not too-distant future -
>>then they may well be running short - They assigned me some starting D8xx 
>>recently...
>
>For what we are doing (only a few 2CP2101/M128 boards will be built and 
>used) the cost of registration seems a bit high.  How about a pointer to a 
>list of existing VID and/or PID registrations?  If it's at usb.org it's 
>well hidden.  That site seems more interested in promoting than helping 
>developers.  Is there any sort of 'sand box' of VID/PIDs experimenters can 
>play in?

For experimentation, just make one up. 

For small volumes, you can buy a small block of PIDs here : 
http://www.voti.nl/shop/catalog.html?USB-PID-10