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Altera_Forum
Honored Contributor I
739 Views

Single rate FIR is not synthesizable.

Hi, my name is itay. 

I have a weird problem with the DSPBA: 

When I open the demo_AD9578 it compiles and run perfectly. 

I actually copy the same filter to my own model and I also  

make sure that all of the inputs are the same format. 

 

input is sfix(16)_En(15), 

coefs are the same, 

there are 17 symmetrical coefs (exactly the same as the demo), 

valid is boolean, 

ch is uint8, 

FPGA is stratix IV. 

 

When I run my model it doesn't compile and gives me the next error: 

"Found a non-synthesizable block in the synthesizable block" 

and points to the Single_Rate_Fir. 

 

What can be wrong? I am a bit frustrated about it, cause i am  

working on it for several days. 

 

thanks ahead, 

Itay.
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1 Reply
Altera_Forum
Honored Contributor I
32 Views

If you attach your model here, it will be much easier to see what's wrong. 

 

From your description, everything seems fine.
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