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LFu001's avatar
LFu001
Icon for New Contributor rankNew Contributor
6 years ago

Cpld epm7256 burning

Hi all, I need to burn cpld epm7256 and while using byteblaster usb and quartus 13 i can't access the device as it seems on the attached files, what does i miss?

Thank you.

4 Replies

  • ak6dn's avatar
    ak6dn
    Icon for Regular Contributor rankRegular Contributor
    6 years ago

    This is a CPLD device, which is EEPROM based, not SRAM based. It uses a .pof file for programming, NOT a .sof file.

    The option you could try is a VERIFY of the programmed device versus a known .pof file, if you have one.

    The only other option is to reprogram the CPLD with a .pof file and do a verify after programming to validate it programmed correctly.

    There is no way to download a new temporary file to try it without completely reprogramming the device.

  • YuanLi_S_Intel's avatar
    YuanLi_S_Intel
    Icon for Regular Contributor rankRegular Contributor
    6 years ago

    Hi Liran,

    Instead of selecting "Examine", can you please select "Program/Configure" for programming?

    Regards,

    YL

    • LFun0's avatar
      LFun0
      Icon for New Contributor rankNew Contributor
      6 years ago

      Hi,

      This card is working and i am affraid to erase the program that is already loaded to the epm7256,

      Examine shall not work? ​

  • YuanLi_S_Intel's avatar
    YuanLi_S_Intel
    Icon for Regular Contributor rankRegular Contributor
    6 years ago

    Hi Liran Fun,

    Examine is not meant for programming / burning. If thats the case, i would suggest you to burn SOF file into the device as it is volatile.

    Regards,

    YL