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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?Link Copied
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i can not reprogram these parts please help
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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
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