Honored ContributorI have a ep3c40q240c8.i can configure it from jtag and also program it's epcs16 and verifiy it.but the fpga after configuration have no effect.for example all pins are 1;no output affected by input;no pll work ...
please help me
Honored ContributorHonored ContributorIf your Quartus Version is 9.1 then this is the case, as this Quartus Version has a bug in generating the required files for programming EPCS devices. This bug will be fixed with the next service pack. (a patch is availabe via MySupport).
Honored Contributorthanks for reply.
my quartus is version 8.0. and it's programming file for epcs16 is *.pof. regardsHonored Contributorif you can check your image via jtag and it runs as expected, then the source should be epcs & fpga connetion related.
could you verify that the MSEL pins are setup for AS mode ? when powering up the system, do you see the fpga request at the epcs pins ? you should see the DCLK and other signals... if this happens, do you see changes at the output of your epcs device that it is responding ?Honored Contributorthanks all .
i remove Schottky diodes near epcs and every thing is ok. i donot know why!!!!!!!:)
