From: Keith Packard <keithp@keithp.com>
Date: Mon, 11 May 2009 05:57:19 +0000 (-0700)
Subject: Increase the initial accel/baro average to 1000 samples
X-Git-Tag: 0.2~15
X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=commitdiff_plain;h=97cecb517cd7bf75e1219c76a93bfe6964c07052;hp=98806b1ff3f41484663d61ff430e9e2764c7b5e6

Increase the initial accel/baro average to 1000 samples

To get an accurate baseline of the launchpad state, take a longer average of
the two sensors as the unit boots up.

Signed-off-by: Keith Packard <keithp@keithp.com>
---

diff --git a/ao_flight.c b/ao_flight.c
index 06d4ba3d..43fd98b2 100644
--- a/ao_flight.c
+++ b/ao_flight.c
@@ -136,7 +136,7 @@ __xdata int32_t ao_raw_accel_sum, ao_raw_pres_sum;
 void
 ao_flight(void)
 {
-	__pdata static uint8_t	nsamples = 0;
+	__pdata static uint16_t	nsamples = 0;
 
 	ao_flight_adc = ao_adc_head;
 	ao_raw_accel_prev = 0;
@@ -194,10 +194,10 @@ ao_flight(void)
 
 			/* startup state:
 			 *
-			 * Collect 100 samples of acceleration and pressure
+			 * Collect 1000 samples of acceleration and pressure
 			 * data and average them to find the resting values
 			 */
-			if (nsamples < 100) {
+			if (nsamples < 1000) {
 				ao_raw_accel_sum += ao_raw_accel;
 				ao_raw_pres_sum += ao_raw_pres;
 				++nsamples;