Honored ContributorMy board's extend flash is AM29LV320.when i use flash programmer to download the code,it shows the following prompt:
Using cable "ByteBlasterII [LPT1]", device 1, instance 0x00 Resetting and pausing target processor: OK Reading System ID at address 0x00404040: verified No CFI table found at address 0x00200000 Leaving target processor paused Can anyone help me in sorting out this issue? THS! Handsome
Honored ContributorHi handsome, I hope R11 isn't soldered...
You doesn't need to connect pin-13 and pin-15 !!! You wrote (and set address width to 22-bit), I think that isn't a good idea to give your processor a wrong information about your ram. Take a look at the attachment and try it...Honored Contributorhello,maestro,i found the real problem.when the flash_oe is low level,its voltage is 1.5V,what's the reason?thanks!
handsomeHonored ContributorHello handsome, solder out R7 to R9 and try again...
Let's see whether it works...Honored ContributorI have solder out R8 and R9,Flash_ce is normal,but Flash_oe and Flash_ce is the same result(low voltage is about 1.5V,can't below it).But when i use these pins alone,its low voltage is normal(about 0.4V).I can't fingure out what's the real reason.Is it the reason of CFI core?
Honored Contributorhi,Maestro,I have a good news to tell u!It works normally now!The real reason is that:the pin-WE is not soldered very well!
Thanks for your kindly help and best regards!
