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

ad_pnmon: Fix zero checking when valid not constant

main
Laszlo Nagy 2020-09-21 10:43:57 +01:00 committed by Laszlo Nagy
parent c7046a6d72
commit 8476993c1b
1 changed files with 3 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
library/common/ad_pnmon.v
View File

@ -67,6 +67,7 @@ module ad_pnmon #(
reg adc_pn_oos_int = 'd0;
reg adc_pn_err_int = 'd0;
reg [CNT_W-1:0] adc_pn_oos_count = 'd0;
reg adc_valid_zero_d = 'b0;
// internal signals
@ -88,7 +89,7 @@ module ad_pnmon #(
// but OOS_THRESHOLD consecutive zeros would assert out of sync.
assign adc_valid_zero = ALLOW_ZERO_MASKING & adc_pattern_has_zero &
~adc_pn_oos_int & adc_pn_match_z_s;
assign adc_pn_err_s = ~(adc_pn_oos_int | adc_pn_match_s | adc_valid_zero);
assign adc_pn_err_s = ~(adc_pn_oos_int | adc_pn_match_s | adc_valid_zero_d);
// pn oos and counters (16 to clear and set).
@ -100,6 +101,7 @@ module ad_pnmon #(
adc_valid_d <= adc_valid_in;
adc_pn_match_d <= adc_pn_match_d_s;
adc_pn_match_z <= adc_pn_match_z_s;
adc_valid_zero_d <= adc_valid_zero;
if (adc_valid_d == 1'b1) begin
adc_pn_err_int <= adc_pn_err_s;
if ((adc_pn_update_s == 1'b1) && (adc_pn_oos_count >= OOS_THRESHOLD-1)) begin