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Altera_Forum's avatar
Altera_Forum
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17 years ago

Output Pins stuck at VCC or GND

Hi all. I've just finished writing and simulating a program which functions as a calculator.. However upon compiling the program, there is this warning which says: "Output Pins stuck at VCC or ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

I find part of the answers! That was my fault while typing the codes.Here it was WHEN START_DETECTED=>

IF BCLKX8_RISING='0' THEN

NEXTSTATE<=START_DETECTED;

ELSIF RXD<='1'.....

The last sentence rxd should be rxd='1' !!

I admire FvM who found that the state never reach RECV_DATA,How did you find that? It was very important clue.