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Altera_Forum's avatar
Altera_Forum
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15 years ago

DE2 push buttons question

I have a simple counter in VHDL for DE2-115 (should work with any DE2). KEY0 starts counting, KEY1 stops, KEY2 resets. The output is displayed on 7-seg LEDs HEX0 - HEX3 in hexa digits (to be simple m...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Right now, KEY is level sensitive. You can make KEY edge-triggered input to counter. For example, a press on KEY will toggle state from STOP to START. Another press on KEY will toggle state from START to STOP. And back and forth.