Flight Data Recorder

Functions to manage and control the flight data recorder. More...

Defines
#define	LOG_WRITE_BUFFER_SIZE   255
	Number of bytes to buffer before writing to flash memory.
Functions
uint32_t	logGetAddress ()
	Last used address in flash memory.
void	logFlush ()
	Write the contents of the temporary log buffer to the flash device.
void	logInit ()
	Prepare the flight data recorder for logging.
void	logSetDisableFlag (bool_t disableFlag)
	Enable and disable flash write operations.
void	logType (LOG_TYPE type)
	Start a entry in the data log.
void	logUint8 (uint8_t value)
	Save an unsigned, 8-bit value in the log.
void	logInt16 (int16_t value)
	Save a signed, 16-bit value in the log.
void	logUint16 (uint16_t value)
	Save an unsigned, 16-bit value in the log.
void	logInt32 (int32_t value)
	Save a signed, 32-bit value in the log.
Variables
uint32_t	logAddress
	Last used address in flash memory.
uint8_t	logBuffer [LOG_WRITE_BUFFER_SIZE]
	Temporary buffer that holds data before it is written to flash device.
uint8_t	logIndex
	Current index into log buffer.
bool_t	logDisableFlag
	Flag that disable writes to flash.

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Detailed Description

Functions to manage and control the flight data recorder.

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Define Documentation

#define LOG_WRITE_BUFFER_SIZE   255

Number of bytes to buffer before writing to flash memory.

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Function Documentation

void logFlush

(

)

Write the contents of the temporary log buffer to the flash device.

If the buffer is empty, nothing is done.

References flashWriteBlock(), logAddress, logBuffer, logDisableFlag, and logIndex.

Referenced by logType().

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uint32_t logGetAddress

(

)

Last used address in flash memory.

This location is where the next log data will be written.

Returns:

24-bit flash memory address

References logAddress.

void logInit

(

)

Prepare the flight data recorder for logging.

References flashReadBlock(), LOG_BOOTED, LOG_COORD, LOG_PUMP, LOG_TEMPERATURE_1, LOG_TEMPERATURE_2, LOG_VOLTAGE, logAddress, logDisableFlag, and logIndex.

Referenced by diagPort(), and main().

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void logInt16

(

int16_t

value

)

Save a signed, 16-bit value in the log.

Parameters:

value

signed, 16-bit value

References logBuffer, and logIndex.

Referenced by main(), and psk31CreateDataPacket().

void logInt32

(

int32_t

value

)

Save a signed, 32-bit value in the log.

Parameters:

value

signed, 32-bit value

References logBuffer, and logIndex.

Referenced by ballastLogEvent(), and sysLogGPSData().

void logSetDisableFlag

(

bool_t

disableFlag

)

Enable and disable flash write operations.

This is used to share the SPI port between the flash and DDS.

Parameters:

disableFlag

disable

References logDisableFlag.

Referenced by psk31TimeUpdate(), psk31TxPacket(), tncTimeUpdate(), and tncTxPacket().

void logType

(

LOG_TYPE

type

)

Start a entry in the data log.

Parameters:

type

of log entry, i.e. LOG_BOOTED, LOG_COORD, etc.

References logAddress, logBuffer, logFlush(), and logIndex.

Referenced by ballastLogEvent(), main(), psk31CreateDataPacket(), and sysLogGPSData().

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void logUint16

(

uint16_t

value

)

Save an unsigned, 16-bit value in the log.

Parameters:

value

unsigned, 16-bit value

References logBuffer, and logIndex.

Referenced by sysLogGPSData().

void logUint8

(

uint8_t

value

)

Save an unsigned, 8-bit value in the log.

Parameters:

value

unsigned, 8-bit value

References logBuffer, and logIndex.

Referenced by ballastLogEvent(), main(), and sysLogGPSData().

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Variable Documentation

uint32_t logAddress

Last used address in flash memory.

Referenced by logFlush(), logGetAddress(), logInit(), and logType().

uint8_t logBuffer[LOG_WRITE_BUFFER_SIZE]

Temporary buffer that holds data before it is written to flash device.

Referenced by logFlush(), logInt16(), logInt32(), logType(), logUint16(), and logUint8().

bool_t logDisableFlag

Flag that disable writes to flash.

Referenced by logFlush(), logInit(), and logSetDisableFlag().

uint8_t logIndex

Current index into log buffer.

Referenced by logFlush(), logInit(), logInt16(), logInt32(), logType(), logUint16(), and logUint8().