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Altera_Forum's avatar
Altera_Forum
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17 years ago

nStatus can't go high

I have just finished my pcb of EP3C25F324, but it can't work when I power on the board, all user IO pins stayed high, the nSTATUS remaid low, and nCONFIG statyed high. Is't the problem of POR? Or ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

can you show me more details?

I have some problem.

Where i made mistake?

Cyclone 4: EP4CE6E22C8n

VCCINT: 1.2V

VCCA: 2.5V

VCCD_PLL: 1.2V