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duodiscus92's avatar
duodiscus92
Icon for New Contributor rankNew Contributor
4 years ago
Solved

Programmer with random behavior

Hi, Configuration is : Windows 10 Max V CPLD Development Kit (low cost) Type A-B USB cable Quartus Prime Programmer Lite Edition Sometimes but rarely I can upload my design (verilog) int...
  • duodiscus92's avatar
    duodiscus92
    4 years ago

    Today, I have received a new board from my retailer.

    It seems to work well.

    So, this confirm it was a failure on the card, probably a bad contact at the level of USB plug.

    As the retailer ask me not to return the board but to discard it, I will try to redo some welds

    Thanks for your help.

    Regards

JohnT_Altera's avatar
JohnT_Altera
Icon for Regular Contributor rankRegular Contributor
4 years ago

Hi,


When you mention sometimes it is working and sometime it is not working, is it using the same file? This might happen if there is some Signal Integrity issue happening on the JTAG interface


  • duodiscus92's avatar
    duodiscus92
    Icon for New Contributor rankNew Contributor
    4 years ago

    Yes, it is with the same file.

    When it is working, then it important not to touch anything (no power down, no cable unplug), so I have a kind of "working session" and then I can upload my various designs (.pof files) without problem.

    Conversely, when its not working good, then I am unable to upload the same files. It seems more and more obvious that it is a hardware failure at the USB level ...

    I contacted my retailer (RS-Components, France) for a exchange of the development kit ... waiting for his reply ...