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Altera_Forum
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13 years ago

MSEL wrong configuration

Hello, I designed a board using a EP4CE22F17C6N and I made a wrong connection on MSEL. I put it on MSEL[2..0] 001 instead of MSEL[2..0] 010. Besides the high level is tied to VCCio e.g 3,3V in...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

Hi there,

while it was a different device (Cyclone IV IIRC) there was some similar behaviour for a wrong MSEL connection. Even with floating pins the JTAG I/F did not work. There seems to be some ambiguity in the datasheet as I would also have expected the JTAG I/F should work for all MSEL connections...

Maybe trying to modify HW to have MSEL floating will give you a chance to test the rest of the board nevermind.