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Altera_Forum's avatar
Altera_Forum
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21 years ago

Custom board with epcs & cyclone error

Has anyone gotten a custom board to work with epcs 4 and a cyclone yet? I have tried for a week and can't get the cpu or flash programmer to work. It either comes back with an error 6 "Unable to synchronize with target." or when I try to connect with the cpu it says that it can't pause it. I get no software response at all from the cpu. I can program the epcs and the jtag device fine seperately, and the altera code is correct because I can make pins function properly, but the cpu in the niosII is not responsive. If I do a sld info on the jtag port, the ports appear to be there and functional. I suspect this is a software issue, but nobody has been able to help yet.

The hardware connections appear to be fine and the target board was develpoed following the manual. I also tried putting a non used bridge in case that would solve anything.

I can make a custom design and software for the nios developement board and everything works fine, so the base install of the software is fine, it just won't work with a custom board.

Thanks,

Dan

13 Replies

  • Altera_Forum's avatar
    Altera_Forum
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    The EPCS4 never worked on my Cyclone board since I bought it! The local FAE told me that its a common bugs on the Cyclone board, so I did not use it till now.

  • Altera_Forum's avatar
    Altera_Forum
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    Well the mystery seems to finally be solved. It appears that NIOS II doesn't work on a 1C6 chip. When I replaced the 1C6 chip with a 1C12, pin for pin compatable, everything worked with just a recompile for the new device. Appears to be an Altera issue

  • Altera_Forum's avatar
    Altera_Forum
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    Dan, we had Nios II running on a 1C3. Can you send me the project, or the ptf file you were using for the 1C6?

    We'd like to investigate this further. Also, who is your FAE?

    you can send it all to khallbec@altera.com

    Thanks!