better monitor averaging (for AVO-8E3 S/N 13790) with auto-reset of average

1 files changed, 5 insertions, 0 deletions

diff --git a/globals.h b/globals.h
index 534a9bc..85d81d4 100644
--- a/globals.h
+++ b/globals.h
@@ -350,6 +350,9 @@ typedef struct {
 } CalStruct;
 
 
+#define CURR_MON_MAX_OLD_COUNTS 50	// monitor readings are around 50/sec, average over one second
+#define MAX_STEP_DEV_FROM_AVG 5		// reset monitor average if more than N steps difference
+
 typedef struct {
 	float frequency;                /* the global frequency variable */
 	float delay;                    /* the global delay variable */
@@ -361,6 +364,8 @@ typedef struct {
 	/* not part of sav/rcl, generated by amplitude routines */
 
 	float Curr_Mon_value;           /* current monitor reading */
+	float old_mon_vals[CURR_MON_MAX_OLD_COUNTS];	/* for monitor averaging */
+	int num_mon_vals;				/* how many monitor readings are stored */
 	float displayed_mon_val;        /* used to determine when LCD update is required */
 	int Curr_Mon_offset;            /* current monitor ADC offset */