SandCoffin
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2 types of coin : A is 5 and B is 10 cents, only one coin can be accepted at a time
15 cents ~> gate open
>15cents ~> change is also returned
That is the abbreviation of the problem and I got the schematic circuit here using DFF.
I used quartus II to design, and use modelsim to simulate, all compilations work successfully but modelsim does not generate any wave signal
I think problem is related to the DFF, I try by adding more input to PRN and CLRN port of DFF but still does not have any wave signal.
Could anyone give me some advice? I am just a beginner
Appreciate any help
15 cents ~> gate open
>15cents ~> change is also returned
That is the abbreviation of the problem and I got the schematic circuit here using DFF.
I used quartus II to design, and use modelsim to simulate, all compilations work successfully but modelsim does not generate any wave signal
I think problem is related to the DFF, I try by adding more input to PRN and CLRN port of DFF but still does not have any wave signal.
Could anyone give me some advice? I am just a beginner
Appreciate any help
