From e1678aa56d0d1deaf003e0a04f09d26000d9eca5 Mon Sep 17 00:00:00 2001
From: "Michael J. Chudobiak" <mjc@avtechpulse.com>
Date: Wed, 2 Oct 2013 11:27:39 -0400
Subject: added chans_opposite_polarities for AVR-D3-B-MS1 error checking

---
 error_utils.c | 20 ++++++++++++++++++--
 flash.c       |  1 +
 globals.h     |  3 ++-
 3 files changed, 21 insertions(+), 3 deletions(-)

diff --git a/error_utils.c b/error_utils.c
index 503724d..718c40b 100644
--- a/error_utils.c
+++ b/error_utils.c
@@ -647,6 +647,21 @@ int Error_check(ChannelStruct ChannelStateToTest[max_channels])
 		}
 	}
 
+	float real_max_ampl[max_channels];
+	float real_min_ampl[max_channels];
+	for (i=0; i<max_channels; i++) {
+		real_max_ampl[i]=globals.Flash.max_ampl[i];
+		real_min_ampl[i]=globals.Flash.min_ampl[i];
+	}
+
+	// handle AVR-D3-B-MS1, where the two channels must have opposite polarities
+	if (	(globals.Flash.channels==2) && globals.Flash.chans_opposite_polarities && globals.Flash.ChanKey_amplitude) {
+		if (ChannelStateToTest[0].amplitude > 0.0) {
+			real_max_ampl[1] = 0.0;
+		} else {
+			real_min_ampl[1]= 0.0;
+		}	
+	}
 
 	for (i=0; (i<num_of_chan) && !early_quit; ++i) {
 		/* Must be changing a setting */
@@ -1048,7 +1063,7 @@ int Error_check(ChannelStruct ChannelStateToTest[max_channels])
 
 
 			/* --- check minimum amplitude --- */
-			globals.Constraints.err_min_ampl[i]=globals.Flash.min_ampl[i];
+			globals.Constraints.err_min_ampl[i]=real_min_ampl[i];
 
 			if ( (globals.Constraints.err_min_ampl[i]>=0.0 && ChannelStateToTest[i].amplitude<(0.999*globals.Constraints.err_min_ampl[i]))
 			                || (globals.Constraints.err_min_ampl[i]<0.0 && ChannelStateToTest[i].amplitude<(1.001*globals.Constraints.err_min_ampl[i])) ) {
@@ -1083,7 +1098,8 @@ int Error_check(ChannelStruct ChannelStateToTest[max_channels])
 
 
 			/* --- check maximum amplitude --- */
-			globals.Constraints.err_max_ampl[i]=globals.Flash.max_ampl[i];
+			globals.Constraints.err_max_ampl[i]=real_max_ampl[i];
+
 			if ( (globals.Constraints.err_max_ampl[i]>=0.0 && ChannelStateToTest[i].amplitude>(1.001*globals.Constraints.err_max_ampl[i]))
 			                || (globals.Constraints.err_max_ampl[i]<0.0 && ChannelStateToTest[i].amplitude>(0.999*globals.Constraints.err_max_ampl[i])) ) {
 				report_error=amplitude_upper_limit;
diff --git a/flash.c b/flash.c
index 03b0529..781537b 100644
--- a/flash.c
+++ b/flash.c
@@ -462,6 +462,7 @@ static void initFlashValues(FlashStruct *mem)
 	mem->self_cal_typical_time_sec=0;
 
 	mem->prf_limiter=1;
+	mem->chans_opposite_polarities=0;
 
 	mem->pcb116c_mon=1;	/* more recent ADC, different reading code */
 	mem->warn_even_if_output_off=0;
diff --git a/globals.h b/globals.h
index a5a1623..bb6b346 100644
--- a/globals.h
+++ b/globals.h
@@ -456,8 +456,9 @@ typedef struct {
 	char self_cal;			/* 242 */
 
 	char prf_limiter;		/* 243 */
+	char chans_opposite_polarities;	/* 244 */
 
-	char spare_padding[12];		/* 244 - padding between common and per-channel sections of the */
+	char spare_padding[11];		/* 245 - padding between common and per-channel sections of the */
 	/* flash eeprom. Adjust size if variables added to common section, */
 	/* so that per-channel section starts at 256 */
 
-- 
cgit