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Add 32 step grayramp to test pattern

This commit is contained in:
paulb-nl 2018-01-20 22:08:10 +01:00
parent bee64c6fbc
commit a39888845a
2 changed files with 9 additions and 4 deletions
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9
rtl/videogen.v
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@ -50,8 +50,11 @@ parameter H_OVERSCAN = 40; //at both sides
parameter V_OVERSCAN = 16; //top and bottom
parameter H_AREA = 640;
parameter V_AREA = 448;
parameter H_BORDER = (H_AREA-512)/2;
parameter V_BORDER = (V_AREA-256)/2;
parameter H_GRADIENT = 512;
parameter V_GRADIENT = 256;
parameter V_GRAYRAMP = 84;
parameter H_BORDER = (H_AREA-H_GRADIENT)/2;
parameter V_BORDER = (V_AREA-V_GRADIENT)/2;
parameter X_START = H_SYNCLEN + H_BACKPORCH;
parameter Y_START = V_SYNCLEN + V_BACKPORCH;
@ -138,6 +141,8 @@ begin
V_gen <= (h_cnt[0] ^ v_cnt[0]) ? 8'hff : 8'h00;
else if ((h_cnt < X_START+H_OVERSCAN+H_BORDER) || (h_cnt >= X_START+H_OVERSCAN+H_AREA-H_BORDER) || (v_cnt < Y_START+V_OVERSCAN+V_BORDER) || (v_cnt >= Y_START+V_OVERSCAN+V_AREA-V_BORDER))
V_gen <= 8'h50;
else if (v_cnt >= Y_START+V_OVERSCAN+V_BORDER+V_GRADIENT-V_GRAYRAMP)
V_gen <= (((h_cnt - (X_START+H_OVERSCAN+H_BORDER)) >> 4) << 3) + (h_cnt - (X_START+H_OVERSCAN+H_BORDER) >> 6);
else
V_gen <= (h_cnt - (X_START+H_OVERSCAN+H_BORDER)) >> 1;
end

4
sys.sopcinfo
View File

@ -1,11 +1,11 @@
<?xml version="1.0" encoding="UTF-8"?>
<EnsembleReport name="sys" kind="sys" version="1.0" fabric="QSYS">
<!-- Format version 17.1 590 (Future versions may contain additional information.) -->
<!-- 2017.12.07.21:28:37 -->
<!-- 2018.01.20.21:54:44 -->
<!-- A collection of modules and connections -->
<parameter name="AUTO_GENERATION_ID">
<type>java.lang.Integer</type>
<value>1512674917</value>
<value>1516481684</value>
<derived>false</derived>
<enabled>true</enabled>
<visible>false</visible>