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Altera_Forum
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11 years ago

Waveform- Forcing Unknown(X)

Hello , i have a problem about the waveform simulation. I have design the mic1 processor and i want to add A[32](bus line) + B[32] ((bus line)=C[32](bus line). For example A=200 and B=0. When i run t...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

Finally, i set a value for the fmax in the classic timing analyzer wizard and now is working fine. Now the next problem is, when it has to read some data from an address ( i use the altsyncram block) it doesn't makes it right. For example i want to read the value 5 from the address 200. In the mif file i have type the 5 in the '200 space'. I have also put pins in the altsyncram for the address and the data and in the waveform during the clock cycle which the read signal is 1, the result of the address is 200 when the clock goes from0 to 1, but the data doesn't change. May i have to set a different value in fmax or set a higher period?