matched new and old histograms simulation

sensor/sens_histogram.v

@@ -24,7 +24,7 @@
     // Alternative: copy/erase to a separate buffer in the beginning/end of a frame?
 
 module  sens_histogram #(
-    parameter HISTOGRAM_RAM_MODE =     "NOBUF", // valid: "NOBUF" (32-bits, no buffering), "BUF18", "BUF32"
+    parameter HISTOGRAM_RAM_MODE =     "BUF32", // "NOBUF", // valid: "NOBUF" (32-bits, no buffering), "BUF18", "BUF32"
     parameter HISTOGRAM_ADDR =         'h33c,
     parameter HISTOGRAM_ADDR_MASK =    'h7fe,
     parameter HISTOGRAM_LEFT_TOP =     'h0,

sensor/sensor_channel.v

@@ -43,7 +43,7 @@ module  sensor_channel#(
     
 
     parameter SENSOR_NUM_HISTOGRAM=       3, // number of histogram channels
-    parameter HISTOGRAM_RAM_MODE =        "NOBUF", // valid: "NOBUF" (32-bits, no buffering), "BUF18", "BUF32"
+    parameter HISTOGRAM_RAM_MODE =        "BUF32", // "NOBUF", // valid: "NOBUF" (32-bits, no buffering), "BUF18", "BUF32"
     parameter SENS_NUM_SUBCHN =        3, // number of subchannels for his sensor ports (1..4)
     parameter SENS_GAMMA_BUFFER =         0, // 1 - use "shadow" table for clean switching, 0 - single table per channel
     

sensor/sensors393.v

@@ -35,7 +35,7 @@ module  sensors393 #(
     parameter SENSI2C_STATUS_REG_REL =    0,     // 4 locations" 'h20, 'h22, 'h24, 'h26
     parameter SENSIO_STATUS_REG_REL =     1,     // 4 locations" 'h21, 'h23, 'h25, 'h27
     parameter SENSOR_NUM_HISTOGRAM=       3,     // number of histogram channels
-    parameter HISTOGRAM_RAM_MODE =        "NOBUF", // valid: "NOBUF" (32-bits, no buffering), "BUF18", "BUF32"
+    parameter HISTOGRAM_RAM_MODE =        "BUF32", // "NOBUF", // valid: "NOBUF" (32-bits, no buffering), "BUF18", "BUF32"
     parameter SENS_NUM_SUBCHN =           3,     // number of subchannels for his sensor ports (1..4)
     parameter SENS_GAMMA_BUFFER =         0,     // 1 - use "shadow" table for clean switching, 0 - single table per channel