Honored ContributorThe constant type here is two-dimension data array constant which is correct when simulating in Modelsim, but is false when mearsured using oscillograph because I can't reach the inner unit of the constant from the result.
I appreciate any suggestions.Thanks.
Honored ContributorI'd suggest to explain your problem a bit more because I didn't understand anything.
Honored ContributorPost some code so that you make more sense.
Honored ContributorLike the sentence constant RAM:=("....","...",...), I need to reach any index I want when conditions meet. I realize it logically which is correct when simulating, but it went wrong when debug on board using oscillograph. The problem is I can't reach the index I want , or I can't see it in oscillograph
Honored ContributorIm guessing that what you have synthesized is a ROM. You need to provide the correct address to the rom to access the internal values.
Honored ContributorThe constant syntax doesn't say anything about how the constant is actually implemented in your design. It may either mean a constant value that's used at compile time or involve ROM inference, when all prerequisites are met. The value would be accessible somehow in any case. "can't reach the index I want" sounds rather unclear. You should tell, what you are actually doing.
