LTC2484.cpp File Reference

Library for LTC2484: 24-Bit Delta Sigma ADC with Easy Drive Input Current Cancellation. More...

Detailed Description

Library for LTC2484: 24-Bit Delta Sigma ADC with Easy Drive Input Current Cancellation.

Definition in file LTC2484.cpp.

Go to the source code of this file.

Functions
int8_t	LTC2484_EOC_timeout (uint8_t cs, uint16_t miso_timeout)
	Checks for EOC with a specified timeout. More...
void	LTC2484_read (uint8_t cs, uint8_t adc_command, int32_t *adc_code)
	Read LTC2484 result, program configuration for next conversion. More...
float	LTC2484_code_to_voltage (int32_t adc_code, float LTC2484_lsb, int32_t LTC2484_offset_code)
	Calculates the LTC2484 input bipolar voltage. More...
float	LTC2484_temperature (int32_t adc_code, float LTC2484_t0, float LTC2484_r0)
	Calculate the LTC2484 temperature. More...
void	LTC2484_cal_voltage (int32_t zero_code, int32_t fs_code, float zero_voltage, float fs_voltage, float *LTC2484_lsb, int32_t *LTC2484_offset_code)
	Calibrate the lsb. More...
void	LTC2484_cal_temperature (int32_t adc_code, float temperature, float *LTC2484_t0, float *LTC2484_r0)
	Calibrate temperature. More...

Function Documentation

LTC2484_cal_temperature()

void LTC2484_cal_temperature	(	int32_t	adc_code,
		float	temperature,
		float *	LTC2484_t0,
		float *	LTC2484_r0
	)

Calibrate temperature.

Returns

Void

Parameters

adc_code	ADC code
temperature	Actual temperature
LTC2484_t0	Temperature calibration value
LTC2484_r0	Voltage for temperature calibration value

Definition at line 123 of file LTC2484.cpp.

LTC2484_cal_voltage()

void LTC2484_cal_voltage	(	int32_t	zero_code,
		int32_t	fs_code,
		float	zero_voltage,
		float	fs_voltage,
		float *	LTC2484_lsb,
		int32_t *	LTC2484_offset_code
	)

Calibrate the lsb.

Returns

Void

Parameters

zero_code	Offset (Code)
fs_code	Code measured with full-scale input applied
zero_voltage	Measured zero voltage
fs_voltage	Actual voltage applied during full-scale measurement
LTC2484_lsb	Returns LSB value (volts)
LTC2484_offset_code	Returns Offset (Code)

Definition at line 109 of file LTC2484.cpp.

LTC2484_code_to_voltage()

float LTC2484_code_to_voltage	(	int32_t	adc_code,
		float	LTC2484_lsb,
		int32_t	LTC2484_offset_code
	)

Calculates the LTC2484 input bipolar voltage.

Returns

Calculated voltage

Parameters

adc_code	Raw ADC code
LTC2484_lsb	LSB value (volts)
LTC2484_offset_code	Offset (Code)

Definition at line 96 of file LTC2484.cpp.

LTC2484_EOC_timeout()

int8_t LTC2484_EOC_timeout	(	uint8_t	cs,
		uint16_t	miso_timeout
	)

Checks for EOC with a specified timeout.

Returns

Returns 0=successful, 1=unsuccessful (exceeded timeout)

Parameters

cs	Chip Select pin
miso_timeout	Timeout (in millisends)

Definition at line 84 of file LTC2484.cpp.

LTC2484_read()

void LTC2484_read	(	uint8_t	cs,
		uint8_t	adc_command,
		int32_t *	adc_code
	)

Read LTC2484 result, program configuration for next conversion.

Returns

void

Parameters

cs	Chip Select pin
adc_command	Command byte
adc_code	Returns raw 32-bit code read from ADC

Definition at line 90 of file LTC2484.cpp.

LTC2484_temperature()

float LTC2484_temperature	(	int32_t	adc_code,
		float	LTC2484_t0,
		float	LTC2484_r0
	)

Calculate the LTC2484 temperature.

Returns

Calculated Temperature

Parameters

adc_code	ADC code
LTC2484_t0	Temperature calibration value
LTC2484_r0	Voltage for temperature calibration value

Definition at line 102 of file LTC2484.cpp.