How to use Altera BRAM instance as a DualPort RAM with 1 Write and 2 parallel reads

Hi Maximov,

Thanks a lot for ur reply

Answers inline to your questions below

1) Did you re-configure the memory block in source code or with the GUI? (I'd recommend the latter)?

I just used the instance in source code, and did not use GUI. What difference does it make?

2) Have you checked warning messages from the compilation flow?

Yes, couldnt find anything suspicious. Since you have pointed this out. I ll scrutinize again and confirm :)

3) Is Timing Closure done?

Yes. Timing closure is done, and there are no negative slacks.

4)Have you tried in-circuit debug?

No, In-Circuit debugging seems to be the last debugging option for me, as it takes time to set up. So I m investing time right now to find obvious bugs/mistakes.

5) What do you mean by invalid data?

Invalid Data means data which is not expected. In my case, all data is coming to be zero.

My read case is continuous 16 addresses, and all the read data has value 0.

6) Do you have built-in memory test?

No, i ve not explored one yet. Is it available for altsyncram?.

Thanks again

Jeebu