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Altera_Forum's avatar
Altera_Forum
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17 years ago

code problem

Hi, I am wring a mermory code, but the waveform is not correct. There is no change of fin_add, only when add_en='1' then add_en_next change. I think probable it is coz the used(num) never become zero...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

caraey,

If to tell why your code is not working, that's because you assign:

fin_add<='0';

and

fin_add<='1';

in the same process.

Only the last assignment to a signal is in force.

Read more about VHDL: Behavior with Processes