Module: tamComm

Executive Summary

This module reads in a message of type tamSensorBodyFswMsg, outputs the magnetometer measurement vector in vehicle’s body coordinates tam_B with the name of tamOutMsgName.

Module Assumptions and Limitations

No assumptions are made.

Message Connection Descriptions

The following table lists the module input and output messages. The module msg variable name is set by the user from python. The msg type contains a link to the message structure definition, while the description provides information on what this message is used for.

Module I/O Messages

Msg Variable Name	Msg Type	Description
tamInMsgName	tamSensorIntMsg	TAM sensor interface input message
tamOutMsgName	tamSensorBodyFswMsg	TAM sensor interface output message

User Guide

In order to transform the tam_S vector of tamSensorIntMsg from sensor to body frame, dcm_BS should be defined.

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Functions

void SelfInit_tamProcessTelem(tamConfigData *configData, int64_t moduleID)

This method initializes the configData for the TAM sensor interface. It checks to ensure that the inputs are sane and then creates the output message

Return

void

Parameters

• configData: The configuration data associated with the TAM sensor interface

void CrossInit_tamProcessTelem(tamConfigData *configData, int64_t moduleID)

This method performs the second stage of initialization for the TAM sensor interface. It’s primary function is to link the input messages that were created elsewhere.

Return

void

Parameters

• configData: The configuration data associated with the TAM interface

void Update_tamProcessTelem(tamConfigData *configData, uint64_t callTime, int64_t moduleID)

This method takes the sensor data from the magnetometers and converts that information to the format used by the TAM nav.

Return

void

Parameters

• configData: The configuration data associated with the TAM interface

• callTime: The clock time at which the function was called (nanoseconds)

void Reset_tamProcessTelem(tamConfigData *configData, uint64_t callTime, int64_t moduleID)

This method performs a complete reset of the module. Local module variables that retain time varying states between function calls are reset to their default values.

Return

void

Parameters

• configData: The configuration data associated with the guidance module

struct tamConfigData

#include <tamComm.h>

module configuration message definition

Public Members

double dcm_BS[9]

[T] Row - Sensor to Body DCM

char tamInMsgName[MAX_STAT_MSG_LENGTH]

[-] The name of the TAM interface input message

char tamOutMsgName[MAX_STAT_MSG_LENGTH]

[-] The name of the TAM interface output message

int32_t tamSensorMsgID

[-] TAM sensor IDs tied to the input name

int32_t tamOutMsgID

[-] TAM message ID for the output port

TAMSensorBodyFswMsg tamLocalOutput

[-] TAM output data structure

BSKLogger *bskLogger

BSK Logging.