zcy
/
pluto_hdl_adi
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

axi_adc_decimate: Do proper sign extension in bypass mode 

The output data of the decimation block is 16-bit signed. Properly sign
extend the 12-bit input signal when the filter is bypassed.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
main
Lars-Peter Clausen 2017-04-07 16:47:26 +02:00
parent 19ca0b3073
commit a02a763139
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
library/axi_adc_decimate/axi_adc_decimate_filter.v
View File

@ -124,7 +124,7 @@ module axi_adc_decimate_filter (
always @(*) begin
case (filter_enable[0])
1'b0: adc_dec_data_a = adc_data_a;
1'b0: adc_dec_data_a = {{4{adc_data_a[11]}},adc_data_a};
default: adc_dec_data_a = {adc_fir_data_a[25], adc_fir_data_a[25:11]};
endcase
@ -134,7 +134,7 @@ module axi_adc_decimate_filter (
endcase
case (filter_enable[0])
1'b0: adc_dec_data_b = adc_data_b;
1'b0: adc_dec_data_b = {{4{adc_data_b[11]}},adc_data_b};
default adc_dec_data_b = {adc_fir_data_b[25], adc_fir_data_b[25:11]};
endcase