Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

AS Configuration Problem with EP3C25E144

Hello ! i have designed circuit in EP3C25E144 TQFP FPGA. I am using both configuration scheme i.e JTAG and AS for EPCS64. Using the same connection schemes as mentioned in Altera Cyclon III c...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

Is the EPCS64 programmed (you state "same program is not downloaded in Serial device)?

As the programmer forces the change of programming file to the *.pof one when switching between JTAG and Active Serial, this change must be done automatically (you cannot download *.sof to EPCS). Maybe you've set the Option which EPCS to use in QII falsely as IIRC the EP3C25 can be used with the EPCS16 or even the EPCS4, which would be chosen by QII if the device is set to "Auto" in Assignments => Device => Device and Pin Options => Configuration..