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Still need to work on FIR, but IIR is working.

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This commit is contained in:
Imants Pulkstenis
2020-06-10 01:30:00 +03:00
parent 682207dfa1
commit bcfcc84975
6 changed files with 362 additions and 76 deletions
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ld3/dds_vhdl/sin_gen.vhd
+4 -4
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@@ -22,7 +22,7 @@ use ieee.numeric_std.all; --use this library if arithmetic required
entity sin_gen is
generic
(
phase_width : integer := 9;
phase_width : integer := 9;
data_width : integer := 16;
sampling_f : integer := 4535; -- 100MHz/22050
clock_cnt_width : integer := 13
@@ -585,9 +585,9 @@ begin --define the operation of the module!
else
if clock_cnt <= sampling_f then
clock_cnt <= unsigned(clock_cnt) + 1;
--if clock_cnt = (sampling_f-1)/2 then
-- clock_out <= not clock_out;
--end if;
if clock_cnt = (sampling_f-1)/2 then
clock_out <= not clock_out;
end if;
else
phase_cnt <= unsigned(phase_cnt) + unsigned(phase_incr);
clock_cnt <= (others => '0');