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Changing default VID/PID of I2C boot image
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Changing default VID/PID of I2C boot image

bistromath posted on 01 Nov 2011 11:21 AM PST
Member
2 Forum Posts

The FX2 has the ability to load a short (~140 byte) device descriptor file from EEPROM, which simply instructs the FX2 default bootloader to enumerate with a specific VID/PID for loading firmware from a host via USB. This is different than booting user firmware itself out of I2C -- rather than loading user firmware from the EEPROM, only a device descriptor is stored, and user firmware is loaded from the host. Does the FX3 also include this ability, or is it forced to enumerate with Cypress VID/PID for USB boot? And if it does include this feature, is the format of the required EEPROM image the same (starts with 0xC2, etc.)?

Re: Changing default VID/PID of I2C boot image

aasi posted on 01 Nov 2011 12:02 PM PST
Cypress Employee
1073 Forum Posts

Please look at www.cypress.com/?docID=31024 You should find it useful.

Re: Changing default VID/PID of I2C boot image

Freakgeek posted on 29 Nov 2012 01:23 PM PST
Member
2 Forum Posts

 Hi, 

The link mentioned above is not working. Could you please upload a relevant one?

Re: Changing default VID/PID of I2C boot image

Lumpi6 posted on 30 Nov 2012 11:14 PM PST
Top Contributor
183 Forum Posts

Hi,

here you can see how to change VID PID of FX3 with I2C eeprom.

http://www.cypress.com/?app=forum&id=167&rID=51560

regards

lumpi

Re: Changing default VID/PID of I2C boot image

Lumpi6 posted on 30 Nov 2012 11:14 PM PST
Top Contributor
183 Forum Posts

Hi,

here you can see how to change VID PID of FX3 with I2C eeprom.

http://www.cypress.com/?app=forum&id=167&rID=51560

regards

lumpi



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