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If I understand right, your way of programming is a one way ticket. You can't neither verify nor reprogram the chip. If you want to, you need a programmer that supports a high voltage programming method, e.g. the Altera Programming Unit (APU).
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Hi thanks for your comment but I’ve found it does work.
I’ve programmed it with a good design and it works. I then programmed it with a bad design and it stopped working as I expect. I’ve programmed it with a good design and it works again.
I’ve not checked if the JTAG pins have been programmed correctly so it is possible it’s only been partial programmed. I will check this out later on when I have time and report back.
Terry
Honored Contributor
