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Altera_Forum's avatar
Altera_Forum
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16 years ago

Jtag Working Wrong!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Hi everybody!

Recently,I'm debug a board about Ep2c8 which build by myself，after I welding end all devices，

I made a sample test program and download it with QuartusII8.0. Then Quartus tell me download success! But I find that fpga does't work as my test program!My test program just make fpga's some pins output as low! As a result ,all pins output as a high！

So ,Someone who know about it ,please tell me why!!

Thank you very much!

Shenhuan 2009-11-22:confused:

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  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    16 years ago

    Thanks for your advice!

    My board work now,there are something about nCS pin,because the problem of welding,nCS pin hasnot been pull down to ground!