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Altera_Forum's avatar
Altera_Forum
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15 years ago

dose external programmer also use JTAG pins to program the chip EPM7160SQC160-10N?

Hi,

I found I can't reprogram the chip EPM7160SQC160-10N because the JTAG is disabled in original design. So I can't program it by USB blaster cable. of courese it can be programmed by external programmer before it is soldered on the PWA. I want to know whether the external programmer also uses the JTAG interface to program the chip. If it uses the other pins to program the chip, what're these pins?

2 Replies

  • fr1's avatar
    fr1
    Icon for New Contributor rankNew Contributor
    4 years ago

    i can not reprogram these parts please help

    • MBenca's avatar
      MBenca
      Icon for Occasional Contributor rankOccasional Contributor
      4 years ago

      Hi fr1,
      it is possible to reprogram or to erase such a device with help of an universal device programmer even if the device has a JTAG lock active. The following 3rd party manufacturers have such universal device programmers: BPM Micro, Elnec or Hi-Lo systems. The same can be done with help of the Altera Programming Unit as well but this product has been obsoleted for a long time.

      Regards,
      Martin