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User1591281943159653's avatar
User1591281943159653
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5 years ago

Configuration issue between EPCS64 and FPGA

Hello, I am trying to flash program the EPCS64 with Quartus Iii 12.1 version and stratix III and I get this error, EPCS signature is 0XFF EPCS device doesn't support RDID command EPCS identifier a...
YuanLi_S_Intel's avatar
YuanLi_S_Intel
Icon for Regular Contributor rankRegular Contributor
5 years ago

Hi Shwetha,

Can you please elaborate more so that i can understand the scenario in a whole picture? May i know, are you saying that you are able to program the EPCS with POF but when you are not able to boot the FPGA with EPCS? If not please clarify.

May i know what is the configuration scheme you used?

Thank You.

Regards,

Bruce

User1591281943159653's avatar
User1591281943159653
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5 years ago

Hi Bruce,

​

Yes, I am able to program EPCS with pof the FPGA is not getting booted from flash. When I try to program using nios II flash programmer I get the error as mentioned in the question. I also tried programming using jic file and I get the error

"can't recognize silicon ID for device 1".

I am using active serial configuration.

Thank you. ​

  • User1591281943159653's avatar
    User1591281943159653
    Icon for New Contributor rankNew Contributor
    5 years ago

    On debugging the issue I got to know that there was short between FPGA_DCLK and GND with an impedence of 25 ohms. So I had xray inspection done on the BGA of fpga to see if there were any shorts. It looked fine. So, the only element left is FPGA. Has this pin of FPGA gone bad? If yes, what might be the reason?Should I have to replace the FPGA?

    Can someone please help me out with this. I am stuck since many days. Thanks in advance.