Optionally print debug information

build-number.txt

@@ -1 +1 @@
-562
+615

src/config.h

@@ -16,3 +16,6 @@
 
 // Maximum number of frames to wait. Capture even if it is not within tolerance.
 #define CONFIG_MAX_FRAMES       15
+
+// Print number of black pixels per captured frame
+// #define CONFIG_PRINT_EXPOSURE_DEBUG_INFORMATION

src/main.c

@@ -22,6 +22,24 @@ int main(void)
     extern uint8_t ImageBuffer[CAMERA_IMAGE_WIDTH * CAMERA_IMAGE_HEIGHT / 8];
     Print_Image(ImageBuffer, CAMERA_IMAGE_WIDTH, CAMERA_IMAGE_HEIGHT, 2);
 
+#ifdef CONFIG_PRINT_EXPOSURE_DEBUG_INFORMATION
+    char buffer[32] = "Finished after lines: ";
+    itoa(Camera_FinalFrameCount, buffer + strlen(buffer), 10);
+
+    Print_Text(buffer, &Arpegius_32);
+    Print_Text("Black pixel counts:", &Arpegius_32);
+    for(int i = 0; i < Camera_FinalFrameCount; i++)
+    {
+        if(i >= (int)(sizeof(Camera_BlackPixelCounts)
+            / sizeof(Camera_BlackPixelCounts[0])))
+        {
+            break;
+        }
+        itoa(Camera_BlackPixelCounts[i], buffer, 10);
+        Print_Text(buffer, &Arpegius_32);
+    }
+#endif
+
     LTP1245_FeedPaper(100);
 
     BMP_Save(ImageBuffer, CAMERA_IMAGE_WIDTH, CAMERA_IMAGE_HEIGHT);

src/main.h

@@ -16,6 +16,7 @@
 #include "font_arpegius_16.h"
 #include "font_arpegius_32.h"
 #include "bmp.h"
+#include "config.h"
 
 int main(void);