diff options
Diffstat (limited to 'src/modules/px4iofirmware/registers.c')
-rw-r--r-- | src/modules/px4iofirmware/registers.c | 28 |
1 files changed, 9 insertions, 19 deletions
diff --git a/src/modules/px4iofirmware/registers.c b/src/modules/px4iofirmware/registers.c index b37259997..43161aa70 100644 --- a/src/modules/px4iofirmware/registers.c +++ b/src/modules/px4iofirmware/registers.c @@ -189,7 +189,8 @@ volatile uint16_t r_page_setup[] = PX4IO_P_SETUP_ARMING_FAILSAFE_CUSTOM | \ PX4IO_P_SETUP_ARMING_ALWAYS_PWM_ENABLE | \ PX4IO_P_SETUP_ARMING_RC_HANDLING_DISABLED | \ - PX4IO_P_SETUP_ARMING_LOCKDOWN) + PX4IO_P_SETUP_ARMING_LOCKDOWN | \ + PX4IO_P_SETUP_ARMING_FORCE_FAILSAFE) #define PX4IO_P_SETUP_RATES_VALID ((1 << PX4IO_SERVO_COUNT) - 1) #define PX4IO_P_SETUP_RELAYS_VALID ((1 << PX4IO_RELAY_CHANNELS) - 1) @@ -738,30 +739,19 @@ registers_get(uint8_t page, uint8_t offset, uint16_t **values, unsigned *num_val { /* * Coefficients here derived by measurement of the 5-16V - * range on one unit: + * range on one unit, validated on sample points of another unit * - * V counts - * 5 1001 - * 6 1219 - * 7 1436 - * 8 1653 - * 9 1870 - * 10 2086 - * 11 2303 - * 12 2522 - * 13 2738 - * 14 2956 - * 15 3172 - * 16 3389 + * Data in Tools/tests-host/data folder. * - * slope = 0.0046067 - * intercept = 0.3863 + * measured slope = 0.004585267878277 (int: 4585) + * nominal theoretic slope: 0.00459340659 (int: 4593) + * intercept = 0.016646394188076 (int: 16646) + * nominal theoretic intercept: 0.00 (int: 0) * - * Intercept corrected for best results @ 12V. */ unsigned counts = adc_measure(ADC_VBATT); if (counts != 0xffff) { - unsigned mV = (4150 + (counts * 46)) / 10 - 200; + unsigned mV = (166460 + (counts * 45934)) / 10000; unsigned corrected = (mV * r_page_setup[PX4IO_P_SETUP_VBATT_SCALE]) / 10000; r_page_status[PX4IO_P_STATUS_VBATT] = corrected; |