Update YUV CPLD to V9.1 with TTL support

vhdl_YUV_8bit/RGBtoHDMI.ucf

@@ -28,7 +28,7 @@ NET "X2_I"      LOC = "P38";       # input
 
 NET "version"   LOC = "P33";       # input  gpio18 (gsr)
 
-NET "clamp"     LOC = "P19";       # input  gpio24
+NET "analog"    LOC = "P19";       # input  gpio24
 
 NET "sp_clk"    LOC = "P44";       # input  gpio20 (gclk)
 NET "sp_data"   LOC = "P7";        # input  gpio0  (input only)

vhdl_YUV_8bit/RGBtoHDMI.vhdl

@@ -27,7 +27,7 @@ entity RGBtoHDMI is
         X1_I:      in    std_logic;
         X2_I:      in    std_logic;
 
-        clamp:     out   std_logic;
+        analog:    inout   std_logic;
 
         -- From Pi
         clk:       in    std_logic;
@@ -50,7 +50,8 @@ architecture Behavorial of RGBtoHDMI is
 
     -- Version number: Design_Major_Minor
     -- Design: 0 = Normal CPLD, 1 = Alternative CPLD, 2=Atom CPLD, 3=YUV6847 CPLD
-    constant VERSION_NUM  : std_logic_vector(11 downto 0) := x"390";
+    constant VERSION_NUM_ANALOG      : std_logic_vector(11 downto 0) := x"391";
+    constant VERSION_NUM_TTL         : std_logic_vector(11 downto 0) := x"B91";
 
     -- NOTE: the difference between the leading and trailing offsets is
     -- 256 clks = 32 pixel clocks.
@@ -83,7 +84,6 @@ architecture Behavorial of RGBtoHDMI is
     signal clamp_size : unsigned (1 downto 0);
     signal mux        : std_logic;
 
-
      -- State to determine whether to invert A
     signal inv_V     : std_logic;
 
@@ -135,8 +135,9 @@ architecture Behavorial of RGBtoHDMI is
     signal sample_UV : std_logic;
     signal sample_Q  : std_logic;
 
-    signal HS_counter : unsigned(1 downto 0);
-
+    signal HS_counter   : unsigned(1 downto 0);
+    signal clamp_pulse  : std_logic;
+    signal clamp_enable : std_logic;
 
      begin
     -- Offset is inverted as we count upwards to 0
@@ -349,7 +350,11 @@ architecture Behavorial of RGBtoHDMI is
             -- In both cases, we only need to "buffer" CN/LN
 
             if version = '0' then
-                quad  <= VERSION_NUM;
+                if analog = '1' then
+                    quad <= VERSION_NUM_ANALOG;
+                else
+                    quad <= VERSION_NUM_TTL;
+                end if;
                 psync <= FS_I;
             elsif sampling = '1' then
                 if sample_Q = '1' then
@@ -405,14 +410,14 @@ architecture Behavorial of RGBtoHDMI is
 
      -- Generate the clamp output (sp_data overloaded as clamp on/off)
                 if (four_level = '1' ) then
-                   clamp <= not(sample_Y) and sp_data;
+                   clamp_pulse <= not(sample_Y) and sp_data;
                else
                     if clamp_size = 0 then
-                         clamp <= not(HS1 or HS2) and sp_data;
+                         clamp_pulse <= not(HS1 or HS2) and sp_data;
                     elsif misc_counter = 0 then
-                         clamp <= '0';
+                         clamp_pulse <= '0';
                     elsif HS4 = '1' then
-                         clamp <= sp_data;
+                         clamp_pulse <= sp_data;
                     end if;
                 end if;
 
@@ -423,4 +428,7 @@ architecture Behavorial of RGBtoHDMI is
     -- output the registered version to save a macro-cell
     csync <= HS5;
 
+    clamp_enable <= '1' when mux = '1' else version;
+    analog <= 'Z' when clamp_enable = '0' else clamp_pulse;
+
  end Behavorial;

vhdl_YUV_8bit/iseconfig/RGBtoHDMI.projectmgr

@@ -9,13 +9,13 @@
          <ClosedNodesVersion>2</ClosedNodesVersion>
       </ClosedNodes>
       <SelectedItems>
-         <SelectedItem>RGBtoHDMI.ucf (C:/Github/RGBtoHDMI/vhdl_YUV_8bit/RGBtoHDMI.ucf)</SelectedItem>
+         <SelectedItem>RGBtoHDMI - Behavorial (C:/Github/RGBtoHDMI/vhdl_YUV_8bit/RGBtoHDMI.vhdl)</SelectedItem>
       </SelectedItems>
       <ScrollbarPosition orientation="vertical" >0</ScrollbarPosition>
       <ScrollbarPosition orientation="horizontal" >0</ScrollbarPosition>
       <ViewHeaderState orientation="horizontal" >000000ff00000000000000010000000100000000000000000000000000000000020200000001000000010000006400000123000000020000000000000000000000000200000064ffffffff000000810000000300000002000001230000000100000003000000000000000100000003</ViewHeaderState>
       <UserChangedColumnWidths orientation="horizontal" >false</UserChangedColumnWidths>
-      <CurrentItem>RGBtoHDMI.ucf (C:/Github/RGBtoHDMI/vhdl_YUV_8bit/RGBtoHDMI.ucf)</CurrentItem>
+      <CurrentItem>RGBtoHDMI - Behavorial (C:/Github/RGBtoHDMI/vhdl_YUV_8bit/RGBtoHDMI.vhdl)</CurrentItem>
    </ItemView>
    <ItemView engineview="SynthesisOnly" sourcetype="DESUT_VHDL_ARCHITECTURE" guiview="Process" >
       <ClosedNodes>
@@ -62,13 +62,13 @@
          <ClosedNodesVersion>1</ClosedNodesVersion>
       </ClosedNodes>
       <SelectedItems>
-         <SelectedItem></SelectedItem>
+         <SelectedItem/>
       </SelectedItems>
       <ScrollbarPosition orientation="vertical" >0</ScrollbarPosition>
       <ScrollbarPosition orientation="horizontal" >0</ScrollbarPosition>
       <ViewHeaderState orientation="horizontal" >000000ff000000000000000100000001000000000000000000000000000000000000000000000000f6000000010000000100000000000000000000000064ffffffff000000810000000000000001000000f60000000100000000</ViewHeaderState>
       <UserChangedColumnWidths orientation="horizontal" >false</UserChangedColumnWidths>
-      <CurrentItem></CurrentItem>
+      <CurrentItem/>
    </ItemView>
    <SourceProcessView>000000ff00000000000000020000011b0000011b01000000040100000002</SourceProcessView>
    <CurrentView>Implementation</CurrentView>

vhdl_YUV_8bit/iseconfig/RGBtoHDMI.xreport

@@ -1,9 +1,9 @@
 <?xml version='1.0' encoding='UTF-8'?>
 <report-views version="2.0" >
  <header>
-  <DateModified>2020-08-11T02:57:19</DateModified>
+  <DateModified>2021-05-24T20:21:41</DateModified>
   <ModuleName>RGBtoHDMI</ModuleName>
-  <SummaryTimeStamp>2020-08-10T05:51:05</SummaryTimeStamp>
+  <SummaryTimeStamp>2021-05-24T19:31:41</SummaryTimeStamp>
   <SavedFilePath>C:/Github/RGBtoHDMI/vhdl_YUV_8bit/iseconfig/RGBtoHDMI.xreport</SavedFilePath>
   <ImplementationReportsDirectory>C:/Github/RGBtoHDMI/vhdl_YUV_8bit/working\</ImplementationReportsDirectory>
   <DateInitialized>2019-12-14T17:34:57</DateInitialized>

vhdl_YUV_8bit/working/RGBtoHDMI_summary.html

@@ -72,5 +72,5 @@
 </TABLE>
 
 
-<br><center><b>Date Generated:</b> 08/11/2020 - 02:57:19</center>
+<br><center><b>Date Generated:</b> 05/24/2021 - 20:21:41</center>
 </BODY></HTML>