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Altera_Forum
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7 years ago

Can I use this trick for CPLD MAX V small MBGA package

Hello, I have designed a small board with a CPLD MAXV MBGA package(5M80ZM68I5) since I did not use all the pins and I did not want to use high tech board production which is expensive I u...
Altera_Forum's avatar
Altera_Forum
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7 years ago

Hey Alex and FvM

I see a misunderstanding in my mesurments

I check those pins again and this is the result:

On the boards that have a problem, before flashing and when probing, TDI , TMS, TDO =3.3V, TCK = 0V.

On the boards that do not have a problem, TDI and TMS= 3.3V, while TDO and TCK = 0V

So please consider that those boards that TDO pin is 3.3V, we have problem

Then what is your idea? still you think about assembly issue?