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Altera_Forum's avatar
Altera_Forum
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13 years ago

headache with 2 process state machine

Hi everyone, below is the code from a state machine. It is a intended emulate one part of a system to test the other part, so all it is doing is sending rows and columns of data (and looking f...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

your asynchronous process' sensitivity list isn't complete either. you got to put all signals which affects the outcome in the sensitivity list, usually the signals in if-else statement.

for synchronous process, usually it is sufficient to put just clock signal in the sensitivity list. unless you want to add some async signal in it.

eg. registers with async reset 


process (clk, reset)
if (reset = '1') then
...
elsif rising_edge(clk)
..
end process;