Introduction

The power module is responsible for distributing power to the rest of the backplane and therefore requires little software for successful operation. However, power distribution can be monitored and provide valuable insight into the backplane's behaviors.

This page reflects the software design for the second revision of the sensor module

Data

Name

Data

Type

Size (bytes)

Sample Rate (Hz)

INA219 (3v3)

Voltage

Power

Current

float

float

float

32

32

32

15

INA219 (5v0)

Voltage

Power

Current

float

float

float

32

32

32

15

INA219 (BATT)

Voltage

Power

Current

float

float

float

32

32

32

15

*** If I did my math right, 15 hertz assuming a default 12-bit resolution for the INA219s.

Name	Data	Type	Size (bytes)	Sample Rate
VIN Voltage	Voltage	int	16	50

*** Need to determine good sample rate for the ADC (Consult James)

Tasks

Name	Responsibility	Priority
INA219 Telemetry	Read in INA219 data and queue the data for processing	High
INA219 Processing	Process telemetry, log it and send it over Ethernet	Medium
ADC Telemetry	Read in STM32 ADC values	High
ADC Processing	Process ADC telemetry, log it and send it over Ethernet	Medium

Callbacks

Name	Responsibility
Ethernet Receive	Receive notification packet to toggling logging between liftoff and landing

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