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S EEPROM
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S EEPROM

mc posted on 05 Oct 2009 9:09 AM PST
Senior Member
13 Forum Posts
Hi
I use S EEPROM command from EZ-USB UI to flash my 4096byte 16bit adress EEPROM and it works.
But if I understand it correctly S EEPROM is implemented to program only 8bit small EEPROM's.
Why does it work in my case?

Thanks, Malik


Re: S EEPROM

aasi posted on 07 Oct 2009 04:47 AM PST
Cypress Employee
1090 Forum Posts
After doing this, is ur firmware booting correctly??? if you take a look at vend_ax... the vendor command used for programming small eeprom is a2 and that for programming large eeprom is a9... there is a switch case statement and you can see that a2 vendor command just falls through... i.e execution algorithm of S EEPROM and LgEEPROM request is the same the only difference is that at the start S EEPROM sets the firmware to use single byte address... Here is what you can do... do a A9 IN request and read the flashed image stored in the EEPROM... compare it with the image you used to flash that EEPROM....
they won't be the same....




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