Kakute F7 RSSI analog pin remap to voltage sensor

KG_Fairbarn · July 22, 2020, 6:55pm

I would like to use the RSSI pin on my Kakute F7 for an analog voltage sensor input but I cannot determine what to set BATT_VOLT_PIN to. The RSSI_ANA_PIN parameter is missing from my parameter list so I cannot see what default pin was used for RSSI to remap for voltage sensing.

vierfuffzig · July 22, 2020, 7:19pm

hwdef says it‘s PC5:

github.com

ArduPilot/ardupilot/blob/db081459d8a57ec82bdc7a68213027ee285f06a0/libraries/AP_HAL_ChibiOS/hwdef/KakuteF7/hwdef.dat#L71




PC3 BATT_VOLTAGE_SENS ADC1 SCALE(1)
PC2 BATT_CURRENT_SENS ADC1 SCALE(1)


# define default battery setup
define HAL_BATT_VOLT_PIN 13
define HAL_BATT_CURR_PIN 12
define HAL_BATT_VOLT_SCALE 10.1
define HAL_BATT_CURR_SCALE 17.0


PC5 RSSI_ADC ADC1


PA2 LED0 OUTPUT LOW


# USART1
PA10 USART1_RX USART1
PA9  USART1_TX USART1


# USART2
PD5 USART2_TX USART2
PD6 USART2_RX USART2

script says PC5 translates to PIN15 in runtime:

github.com

ArduPilot/ardupilot/blob/db081459d8a57ec82bdc7a68213027ee285f06a0/libraries/AP_HAL_ChibiOS/hwdef/scripts/STM32F745xx.py#L887


	"PA5"	:	5,
	"PA6"	:	6,
	"PA7"	:	7,
	"PB0"	:	8,
	"PB1"	:	9,
	"PC0"	:	10,
	"PC1"	:	11,
	"PC2"	:	12,
	"PC3"	:	13,
	"PC4"	:	14,
	"PC5"	:	15,
}




if __name__ == '__main__':
    # test clock settings


    def check_range(name, value, minv, maxv):
        '''check range of a value'''
        import sys
        if value < minv: