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Regarding loading USB descriptors from EEPROM

Anonymous
Not applicable
‎Nov 29, 2012 08:43 PM
‎Nov 29, 2012 08:43 PM

 In general, default firmware is loaded, which enumerates Cypress board with specific VID/PID. (04b4 : XXXX type)

   

I wish to load a short descriptor file from EEPROM, which helps bootloader to enumerate with my chosen VID/PID for loadinf firmware from host via USB. or am i forced to enumerate with Cypress VID/PID for USB boot ?

   

Thank you 

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Re: Regarding loading USB descriptors from EEPROM

Anonymous
Not applicable
‎Nov 30, 2012 05:18 AM
‎Nov 30, 2012 05:18 AM

No there is no need to boot using Cypress default VID,PID. U can configure ur own PID and VID in ur eeprom, but u should set these IDs in the inf file.

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Re: Regarding loading USB descriptors from EEPROM

Anonymous
Not applicable
‎Dec 03, 2012 10:19 PM
‎Dec 03, 2012 10:19 PM

 Hi,

   

     You can refer to "I2C Boot" section of application note "EZ-USB® FX1™/FX2LP™ Boot Options" available at http://www.cypress.com/?docID=39834.

   

Regards

   

Prajith

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