let rise time go to the lowest hardware-possible value, not just the specified minimum - for AVRQINSTRUMENT_6_4_19c

1 files changed, 28 insertions, 0 deletions

diff --git a/device-functions.c b/device-functions.c
index de954fd..81bf1d9 100644
--- a/device-functions.c
+++ b/device-functions.c
@@ -2680,6 +2680,34 @@ static int inverse_interpolation (int x1, int x2, float y1, float y2, float y_ne
 }
 
 
+float min_possible_hw_rise_time (int channel, float use_ampl)
+{
+	// special function to let rise time go to the lowest hardware-possible value, not just the specified minimum - for AVRQ
+	float min_so_far, try_this;
+
+	int i, j, actual_pol;
+
+	if (use_ampl<0.0) {
+		actual_pol=1;
+	} else {
+		actual_pol=0;
+	}
+
+	min_so_far = globals.Flash.max_rise_time[channel];
+
+	for (i=0;i<ampl_ranges;i++) {
+		for (j=0;j<std_range_size;j++) {
+			try_this = globals.Flash.rise_time_pwl[channel][i][actual_pol][j];
+			if ((try_this > 0.0) && (try_this < min_so_far)) {
+				min_so_far = try_this;
+			}
+		}
+	}
+
+	return min_so_far;
+}
+
+
 int Set_VI_Control(int parameter,int channel,float new_ampl,int *point_found,int *relay_range,int *atten_range,
                    int *UseNegData,int *entry,int *word_out,int *actual_pol,int *word_out_aux)
 {