allow amplitude to be in a limited negative-only range (AVR-CD2-B)

2 files changed, 4 insertions, 1 deletions

diff --git a/device-functions.c b/device-functions.c
index 3853422..b17eada 100644
--- a/device-functions.c
+++ b/device-functions.c
@@ -4498,6 +4498,9 @@ float rst_ampl_value (int channel)
 		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 if ((globals.Flash.min_ampl[channel] < 0.0) && (globals.Flash.max_ampl[channel] < 0.0)) {
+			// both min and max ampls are negative, range does not include zero. AVR-CD2-B CH2.
+			return globals.Flash.max_ampl[channel];
 		} else {
 			// normal unit
 			return 0.0;
diff --git a/flash.c b/flash.c
index ee3b036..1d84309 100644
--- a/flash.c
+++ b/flash.c
@@ -983,7 +983,7 @@ void fixFlash(FlashStruct *mem)
 			}
 
 			if ((safe_val != 0.0) && (mem->rcl_amplitude[i][j] == 0.0)) {
-				// AVR-D4-B
+				// AVR-D4-B, AVR-CD2-B CH2
 				mem->rcl_amplitude[i][j] = safe_val;
 				++fix_initial_constants;
 			}