Trammell Hudson avatar Trammell Hudson committed e3bfb40 Draft

More attempts to provide better ramping on the pedal

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Files changed (1)

 		if (c == 0x30)
 		{
 			uint8_t chan = midi_getc();
-			uint8_t val = midi_getc();
+			int8_t val = midi_getc();
 			print("pedal ");
 			phex(chan);
 			print(" ");
 				continue;
 			}
 
-			// Faster speeds also increase the
-			// repeat rate
-			pedal_value = -(int8_t)(val/4);
+			// Small displacements still need to move the
+			// screen, just not as fast.
+			if (val < 32)
+			{
+				pedal_value = -val / 2;
+				OCR1A = 64000; // slow
+			} else
 			if (val < 64)
-				OCR1A = 25000;
-			else
-				OCR1A = 16000;
+			{
+				pedal_value = -val / 2;
+				OCR1A = 50000; // moderate speed
+			} else
+			if (val < 96)
+			{
+				pedal_value = -val / 4;
+				OCR1A = 40000; // increasing speed
+			} else
+			{
+				pedal_value = -val / 4;
+				OCR1A = 32000; // high speed;
+			}
+
 			continue;
 		}
 
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