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Geometrics::GmMfamEmulator Class Reference

Class developed in order to develop and debug MFAM-based applications, because a debug halt when running the MFAM SPI in the debuggers in code composer is not recoverable (TI acknowledged that the SPI interfaces would lock the debugger when running the Tiva SOCs in a communication sometime around 2017 or 2018, and stated that they did not plan to do anything about it; hard to argue with that position - the chip was more than 10 years in production at that point) . This class needs occasional dev work in order to keep up with changing application requirements, for example as the application uses more of the data in the SPI packet. More...

#include <GmMFAMEmulator.hpp>

Inheritance diagram for Geometrics::GmMfamEmulator:
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Collaboration diagram for Geometrics::GmMfamEmulator:
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Public Member Functions

 GmMfamEmulator (UInt8 iSubjectId, GmManagedArrayRingBuffer< uint8_t, GM_SIZE_OF_APP_DATA_QUEUE > *mainEventQueue)
 
int Initialize ()
 
virtual void Halt ()
 
int AddFakeRecord ()
 
- Public Member Functions inherited from Geometrics::GmMfamDataSource
 GmMfamDataSource (UInt8 iSubjectId, GmManagedArrayRingBuffer< uint8_t, GM_SIZE_OF_APP_DATA_QUEUE > *mainEventQueue)
 
int Start ()
 
virtual int CheckCalibrate (Bool bForceCalibrate)
 
int SetSimpleSubsampleRate (int iNewRate)
 
int ResetBuffers (Bool bForceCalibrate)
 
virtual UInt16 SystemStatus ()
 
virtual int WriteToStorage (UInt32 ui32Topic, char *pData, UInt32 iSize, GmStorage *psStorage, UInt32 ui32FormatId)
 
Bool IsSuperMag ()
 
Bool MagOneDataValid ()
 
Bool MagTwoDataValid ()
 
Bool PpsLocked ()
 
Bool PpsAvailable ()
 
int MagOneStartupStatusString (char *strBuffer, int iBufferLength)
 
int MagTwoStartupStatusString (char *strBuffer, int iBufferLength)
 
int MagOneOperatingStatusString (char *strBuffer, int iBufferLength)
 
int MagTwoOperatingStatusString (char *strBuffer, int iBufferLength)
 
int LastMagOneDataValue (float *pfDataValue)
 
int LastMagTwoDataValue (float *pfDataValue)
 
UInt16 MagMainMode ()
 
UInt16 CompassStatus ()
 
bool IsInStartup ()
 
Bool SystemHasStartedUp ()
 
Bool SystemFailed ()
 
void SaveMonitorPacket (IndexedMfamFilteredPacketWithHeader *pMonitorPacket, Bool bFilter)
 
- Public Member Functions inherited from Geometrics::GmBufferedSensor
 GmBufferedSensor (UInt8 iSubjectId, int iRingCount, int iDataSize, GmManagedArrayRingBuffer< uint8_t, GM_SIZE_OF_APP_DATA_QUEUE > *mainEventQueue)
 Constructor for derived classes, when it's OK to allocate a local buffer dynamically. More...
 
 GmBufferedSensor (UInt8 iSubjectId, int iRingCount, int iDataSize, UInt8 *puiBuffer, UInt32 uiBufferSize, GmManagedArrayRingBuffer< uint8_t, GM_SIZE_OF_APP_DATA_QUEUE > *mainEventQueue)
 Constructor used by most derived classes on memory-constrained systems. In this case the derived class provides a buffer, usually static, so that the buffer doesn't need to be allocated dynamically. More...
 
int Start ()
 
int ResetBuffers ()
 
Bool HasData ()
 
int ReadRecord (char *pcDestination, int iSize)
 The main interface for consumers of a sensors data to get that data. It simply copies the data in the sensor's buffer into the caller's buffer. It is up to the caller to know what to do with that data, and how to free any local memory. (This function should have been name ReadNextRecord)
 
virtual int DeleteNextRecord ()
 DeleteNextRecord allows a caller to discard the next record without retrieving it. The subclasses that implement DeleteNextRecord must be able to deal with any memory that needs to be freed, or other such concerns.
 
- Public Member Functions inherited from Geometrics::GmEventSource
void SetSensorId (int iSensorId)
 
int GetSensorId ()
 

Static Public Attributes

static GmMfamEmulatorm_static_msTheOneSensor = NULL
 
- Static Public Attributes inherited from Geometrics::GmMfamDataSource
static UInt16 m_static_iSystemStatus
 

Additional Inherited Members

- Static Public Member Functions inherited from Geometrics::GmMfamDataSource
static int DecodeMagStartupStatus (UInt16 iMagStatus, char *strBuffer, int iBufferLength)
 
static int DecodeMagOperatingStatus (UInt16 iMagStatus, char *strBuffer, int iBufferLength)
 
- Public Attributes inherited from Geometrics::GmMfamDataSource
uint32_t mQueueFillTopThreshold
 
uint32_t mQueueFillRestartThreshold
 
- Public Attributes inherited from Geometrics::GmBufferedSensor
CChildRingBufferm_rbBuffer
 The local buffer into which the sensor or event source stores each of its events or measurements. When an item is committed to this buffer, it also adds an event (consisting of the sensor's subject ID) into the application main event queue. The full event or measurement remains here, until the application reads the subject ID out of the main queue and then asks this sensor object for the full information by calling ReadRecord.
 
UInt8 m_iSubjectId
 
- Protected Member Functions inherited from Geometrics::GmMfamDataSource
int RecordStatus (MfamSpiPacket *pmspRecord)
 
- Protected Attributes inherited from Geometrics::GmMfamDataSource
IndexedMfamFilteredPacketWithHeader m_mspStatusPacket
 
int m_iSimpleSubsampleRate
 
IndexedMfamFilteredPacketWithHeader m_amspStatusRecords [MAG_SPI_TOTAL_RECORDS]
 
- Protected Attributes inherited from Geometrics::GmEventSource
int m_iSensorId
 
- Static Protected Attributes inherited from Geometrics::GmMfamDataSource
static bool m_static_boolInitialized
 
static int m_static_iSubsampleCount = 0
 

Detailed Description

Class developed in order to develop and debug MFAM-based applications, because a debug halt when running the MFAM SPI in the debuggers in code composer is not recoverable (TI acknowledged that the SPI interfaces would lock the debugger when running the Tiva SOCs in a communication sometime around 2017 or 2018, and stated that they did not plan to do anything about it; hard to argue with that position - the chip was more than 10 years in production at that point) . This class needs occasional dev work in order to keep up with changing application requirements, for example as the application uses more of the data in the SPI packet.

To enable the emulator in an MFAM-based application, use this in GeoAppDefs.hpp:

#define EMULATE_MFAM_SENSOR GEO_TRUE

rather than this:

#define MFAM_MODULE GEO_FALSE


The documentation for this class was generated from the following files: