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Altera_Forum's avatar
Altera_Forum
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17 years ago

cycloneⅡ configration problem!!!

Sorry ,My english is poor,I have a question.

when i touch AS port with my hand , the ep2c8q208i8 is reconfigration, especially, touched nconfig pin on the AS port , I have tired nconfig pin to 3.3v with 10k.

someone can help me ,thanks!

3 Replies

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

    FvM, yes , i used a switched power supply for 3.3v,i want to know how can i protective electrostatic. and jakobjones , the fpga is reconfigration when i touch the nconfig pin.

    thinks!
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    17 years ago

    Well yes, driving the nConfig pin to ground is one way to trigger a reconfig. I have a question that may sound strange. Is it just when you touch the nConfig pin or is it when you are trying to plug (or unplug) the USB-Blaster into the AS port?

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

    You're possibly operating the circuit from a switched mode power supply without protecetive ground or other interfering voltages or electrostatic charges are present.

    Generally, you should not touch any circuit parts without ESD protective equipment, parts may be damaged otherwise.

    P.S.: It's been said in reports, that most inexplicable failure events of electronic components are cause by ESD induced damage.