08-06-2015 09:04 AM
i found impact14.7 support 256mb flash named n25Q256 in its drop-down list~I am not sure it can work or not~because i didnt find N25Q256 be supported in list,show as:
08-06-2015 09:27 AM
On the same link which you have posted, if you check table iMPACT SPI Flash Programming Support for Virtex and Spartan FPGA Family, you will find that N25Q family of flashes are supported with Virtex-6 devices. You can also cross check at
08-06-2015 09:43 AM
hi~thaks for your replay~~
yes ~i am sure N25 is supported by v6~ but i am not sure N25Q256 supported or not becasue its 256Mbit,
but the link i posed ~~it says 32Mb – 128Mb is support ~~not 256Mb
but in impact 14.7 drop-down list N25Q256 is supported~~so ~~~~~i am confused
08-06-2015 10:07 AM
Yes you are correct that N25Q256 can be selected in the flash list in iMPACT, but it is not in the support list in Help document.
So you can use this flash but the condition is your image size should be below 128Mb. You need to skip IDCODE check and then program the flash to configure the FPGA.
To do this, you need to set below environment variable
which will bypass the IDCODE check for this flash and allow the iMPACT tool to program the flash.
08-07-2015 03:26 AM