Forum Discussion
Honored ContributorFlash programmer problem-No CFI table found
My 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! Handsome15 Replies
Altera_Forumhi,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!- Altera_Forum
I 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?
- Altera_Forum
Hello handsome, solder out R7 to R9 and try again...
Let's see whether it works... - Altera_Forum
hello,maestro,i found the real problem.when the flash_oe is low level,its voltage is 1.5V,what's the reason?thanks!
handsome - Altera_Forum
Hi 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... - Altera_Forum
thanks for your reply,i'll make a try!Hope it will work!
- Altera_Forum
thanks for your reply!i'll make a try!
- Altera_Forum
Take a look at the collateral for the Nios II 2c35 development kit (http://http://www.altera.com/products/devkits/altera/kit-nios-2c35.html), which has a very similar flash.
I think you need to be connecting the BYTE signal and dropping the two least significant address bits. Cheers, - Ura - Altera_Forum
I have set all the time to 200ns,but it also dosen't work!v..........
- Altera_Forum
Hi,Maestor666,your reply is quite in time,thanks!
yes ,i have set base address to 0x00000000,and connected pin byte to vcc(3.3v),and between them i added a r-4.7k. BTW,i set it to work in WORD-mode,so address width is 21-bit(i don't use the pin-13,someone use it,and set address width to 22-bit,but i think this doesn't matter ),data width is 16-bit. pin15(ry/by)is also floated! https://www.alteraforum.com/forum/attachment.php?attachmentid=1316 https://www.alteraforum.com/forum/attachment.php?attachmentid=1317 https://www.alteraforum.com/forum/attachment.php?attachmentid=1318 Handsome
