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Hi all,
I don't see the design is completely pipelined.
all statements involving three additions can be further pipelined e.g.
sum1 <= row1_reg[23:16] + row1_reg[15:8] + row1_reg[7:0];
into :
sum1a <= row1_reg[23:16] + row1_reg[15:8];
sum1b <= row1_reg[7:0];
sum1 <= sum1a + sum1b;
and so on.
Moreover, there is another way of doing the average FIR filter using feedback and subtractor instead of full additions.
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Hi ,
I run a test and it looks like that , as FvM mentioned, the divider is the root cause for the problem.
Kind regards
GPK
Honored Contributor
