System Library Functions

Generic system functions similiar to the run-time C library. More...

Functions
uint16_t	sysCRC16 (uint8_t *buffer, uint8_t length, uint16_t crc)
	Calculate the CRC-16 CCITT of buffer that is length bytes long.
void	sysInit ()
	Initialize the system library and global resources.
void	sysLogGPSData ()
	Log the current GPS position.
void	sysLogVoltage ()
	Log the ADC values of the bus and reference voltage values.

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Detailed Description

Generic system functions similiar to the run-time C library.

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Function Documentation

uint16_t sysCRC16	(	uint8_t *	buffer,
		uint8_t	length,
		uint16_t	crc
	)

Calculate the CRC-16 CCITT of buffer that is length bytes long.

The crc parameter allow the calculation on the CRC on multiple buffers.

Parameters:

	buffer	Pointer to data buffer.
	length	number of bytes in data buffer
	crc	starting value

Returns:

CRC-16 of buffer[0 .. length]

Definition at line 2001 of file PicoBeacon.c.

References value.

Referenced by tncTxPacket().

void sysInit

(

)

Initialize the system library and global resources.

Definition at line 2023 of file PicoBeacon.c.

References gpsPowerOff(), IO_CS, IO_GPS_TXD, IO_LED, IO_OSK, IO_PS0, IO_PS1, IO_PTT, and IO_UPDATE.

Referenced by main().

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void sysLogGPSData

(

)

Log the current GPS position.

Definition at line 2048 of file PicoBeacon.c.

References GPSPOSITION_STRUCT::altitudeCM, GPSPOSITION_STRUCT::dop, GPSPOSITION_STRUCT::heading, GPSPOSITION_STRUCT::hours, GPSPOSITION_STRUCT::hSpeed, GPSPOSITION_STRUCT::latitude, LOG_COORD, logInt32(), logType(), logUint16(), logUint8(), GPSPOSITION_STRUCT::longitude, GPSPOSITION_STRUCT::minutes, GPSPOSITION_STRUCT::seconds, GPSPOSITION_STRUCT::status, GPSPOSITION_STRUCT::trackedSats, GPSPOSITION_STRUCT::visibleSats, and GPSPOSITION_STRUCT::vSpeed.

Referenced by main().

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void sysLogVoltage

(

)

Log the ADC values of the bus and reference voltage values.

Definition at line 2072 of file PicoBeacon.c.

References adcRawBusVolt(), adcRawRefVolt(), LOG_VOLTAGE, logType(), and logUint16().

Referenced by tncTxPacket().

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