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VHou0's avatar
VHou0
Icon for New Contributor rankNew Contributor
6 years ago

VCC pin connection of JTAG chain

The red box in the figure below recommends that we connect the VCC of the download cable to 2.5V.

If we connect the VCC of the download cable to 3.3V and provide clamping diodes between the FPGA and JTAG as shown in the below , is it feasible?

2 Replies

  • VHou0's avatar
    VHou0
    Icon for New Contributor rankNew Contributor
    6 years ago

    Hi Support team,

    Our current connection is show below.

    Thanks in advance.

    • ShafiqY_Intel's avatar
      ShafiqY_Intel
      Icon for Frequent Contributor rankFrequent Contributor
      6 years ago

      Hi VHou0,

      We recommend to power up the VCC of the download cable with a 2.5-V supply from VCCA.

      Other than this value, we are not recommend and you can try use other value on your own risk.

      Thanks.

      Regards,

      Matt