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jgil
Visitor II
May 29, 2003
Question

using JTAG( mixed systems)

  • May 29, 2003
  • 2 replies
  • 621 views
Posted on May 29, 2003 at 14:07

using JTAG( mixed systems)

    This topic has been closed for replies.

    2 replies

    J
    jgilAuthor
    Visitor II
    May 17, 2011
    Posted on May 17, 2011 at 11:54

    I'm trying to use the JTAG interface with two devices. An device is powered to 5V and the other is powered to 3.3V . How should a mixed voltage JTAG chain be laid out, what should the

    device order be, and what should the VCC of the parallel cable be?

    Thanks in advance for any comments.

    Regards,

    Jokin

    J
    joseph2399
    Visitor II
    May 17, 2011
    Posted on May 17, 2011 at 11:54

    Assume your 3.3V device is 5V tolarent, then you should put your 5V device in the front.

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