From c743eaa060080a7bd236466b93cff3abc96f405b Mon Sep 17 00:00:00 2001 From: Keith Packard Date: Wed, 15 Jan 2014 12:40:26 -0800 Subject: altos: Report battery, apogee and main voltages over APRS This makes APRS more usable when you mute the RF audio on the HT. Signed-off-by: Keith Packard --- src/telemega-v0.1/Makefile | 1 + src/telemega-v0.1/ao_pins.h | 17 +++++++++++++++++ 2 files changed, 18 insertions(+) (limited to 'src/telemega-v0.1') diff --git a/src/telemega-v0.1/Makefile b/src/telemega-v0.1/Makefile index 35f28b30..28ed7c98 100644 --- a/src/telemega-v0.1/Makefile +++ b/src/telemega-v0.1/Makefile @@ -100,6 +100,7 @@ ALTOS_SRC = \ ao_i2c_stm.c \ ao_mpu6000.c \ ao_convert_pa.c \ + ao_convert_volt.c \ ao_log.c \ ao_log_mega.c \ ao_sample.c \ diff --git a/src/telemega-v0.1/ao_pins.h b/src/telemega-v0.1/ao_pins.h index daeb9f17..db397c66 100644 --- a/src/telemega-v0.1/ao_pins.h +++ b/src/telemega-v0.1/ao_pins.h @@ -249,6 +249,23 @@ struct ao_adc { #define AO_ADC_SQ8 AO_ADC_V_PBATT #define AO_ADC_SQ9 AO_ADC_TEMP +/* + * Voltage divider on ADC battery sampler + */ +#define AO_BATTERY_DIV_PLUS 56 /* 5.6k */ +#define AO_BATTERY_DIV_MINUS 100 /* 10k */ + +/* + * Voltage divider on ADC igniter samplers + */ +#define AO_IGNITE_DIV_PLUS 100 /* 100k */ +#define AO_IGNITE_DIV_MINUS 27 /* 27k */ + +/* + * ADC reference in decivolts + */ +#define AO_ADC_REFERENCE_DV 33 + /* * Pressure sensor settings */ -- cgit v1.2.3