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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

Apparently, the intended design purpose is to fill a new memory location each time add_en is asserted.

In my opinion, it can't be done asynchronously, at least an edge detection for the add_en signal is needed.