From 244c370cee3d8f2a00dc5d7c55e6ff8be2d80fdd Mon Sep 17 00:00:00 2001
From: "Michael J. Chudobiak" <mjc@avtechpulse.com>
Date: Thu, 23 Oct 2014 11:16:30 -0400
Subject: AVR-D4-B mods: if min+max ampl both positive, do not reset to zero

---
 device-functions.c | 69 ++++++++++++++++++++++++++++++++----------------------
 1 file changed, 41 insertions(+), 28 deletions(-)

(limited to 'device-functions.c')

diff --git a/device-functions.c b/device-functions.c
index 3b1bf22..879ae73 100644
--- a/device-functions.c
+++ b/device-functions.c
@@ -89,7 +89,7 @@ void Main_Rst (void)
 			globals.ChannelState[i].pw=0.0;
 		}
 
-		globals.ChannelState[i].amplitude = rst_fixed_ampl_point(i);
+		globals.ChannelState[i].amplitude = rst_ampl_value(i);
 		globals.ChannelState[i].offset=0.0;
 
 		globals.ChannelState[i].zout=globals.Flash.zout_min[i];
@@ -4480,41 +4480,54 @@ int number_of_fixed_ampl_points(int channel)
 }
 
 
-float rst_fixed_ampl_point (int channel)
+float rst_ampl_value (int channel)
 {
 	// smallest positive value, or zero
 
-	int i, max, pos_count, neg_count;
-	pos_count = 0;
-	neg_count = 0;
-
-	float smallest_pos, smallest_neg;
-	smallest_pos = 1e9;
-	smallest_neg = -1e9;
-
+	int max;
 	max = number_of_fixed_ampl_points(channel);
 
-	// any zeroes?
-	for (i=0; i<max; i++) {
-		if (globals.Flash.fixed_ampl_points[channel][i] >= 0.0 ) {
-			++pos_count;
-			if (globals.Flash.fixed_ampl_points[channel][i] < smallest_pos) {
-				smallest_pos = globals.Flash.fixed_ampl_points[channel][i];
-			}
-		} else if (globals.Flash.fixed_ampl_points[channel][i] < 0.0 ) {
-			++neg_count;
-			if (globals.Flash.fixed_ampl_points[channel][i] > smallest_neg) {
-				smallest_neg = globals.Flash.fixed_ampl_points[channel][i];
+	if (max == 0) {
+		// not a unit that uses a list of fixed amplitudes
+
+		if ((globals.Flash.min_ampl[channel] > 0.0) && (globals.Flash.max_ampl[channel] > 0.0)) {
+			// both min and max ampls are positive, range does not include zero. AVR-D4-B.
+			return globals.Flash.min_ampl[channel];
+		} else {
+			// normal unit
+			return 0.0;
+		}
+	} else {
+		int i, pos_count, neg_count;
+		pos_count = 0;
+		neg_count = 0;
+
+		float smallest_pos, smallest_neg;
+		smallest_pos = 1e9;
+		smallest_neg = -1e9;
+
+		// any zeroes?
+		for (i=0; i<max; i++) {
+			if (globals.Flash.fixed_ampl_points[channel][i] >= 0.0 ) {
+				++pos_count;
+				if (globals.Flash.fixed_ampl_points[channel][i] < smallest_pos) {
+					smallest_pos = globals.Flash.fixed_ampl_points[channel][i];
+				}
+			} else if (globals.Flash.fixed_ampl_points[channel][i] < 0.0 ) {
+				++neg_count;
+				if (globals.Flash.fixed_ampl_points[channel][i] > smallest_neg) {
+					smallest_neg = globals.Flash.fixed_ampl_points[channel][i];
+				}
 			}
 		}
-	}
 
-	if (pos_count > 0) {
-		return smallest_pos;
-	} else if (neg_count > 0) {
-		return smallest_neg;
-	} else {
-		return 0.0;
+		if (pos_count > 0) {
+			return smallest_pos;
+		} else if (neg_count > 0) {
+			return smallest_neg;
+		} else {
+			return 0.0;
+		}
 	}
 }
 
-- 
cgit