isoADC.c File Reference

Driver for AMC131M03-Q1. More...

#include "isoADC.h"

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Macros
#define	ADC_BITS   24
#define	ADC_SCALER   (1 << ADC_BITS)
#define	VBUS_RESISTANCE   4000000
#define	VBUS_SENSE_RESISTANCE   1000
#define	MASK_TO_INT(x)
#define	ISO_ADC_ID   0x23
#define	ADC_RANGE   2.4
#define	WORD_PER_XMISSION   5
#define	WORD_SIZE   3
#define	XMISSION_SIZE   (WORD_PER_XMISSION * WORD_SIZE)
#define	REG_SIZE   2
#define	SPI_WAIT_TIME   2

Functions
uint8_t	wakeup_isoADC (isoADCConfig_t const *cfg_ptr, isoADCData_t *data_ptr)
uint8_t	read_isoADC_register (isoADCRegisterAddr_e address, uint8_t *response_buffer)
uint8_t	write_isoADC_register (isoADCRegisterAddr_e address, uint8_t *response_buffer, uint8_t const *write_bits)
uint8_t	read_isoADC_ID (void)
uint8_t	read_isoADC_ADCs (isoADCConfig_t const *cfg_ptr, isoADCData_t *data_ptr)
uint8_t	read_isoADC_status (isoADCData_t *data_ptr)
uint16_t	calculate_crc (uint8_t *data, uint8_t length)
uint8_t	write_isoADC_reg_with_crc (isoADCRegisterAddr_e address, uint8_t *response_buffer, uint8_t const *write_bits)
bool	convert_raw_to_actual (isoADCConfig_t *config, isoADCData_t *data_ptr)
uint8_t	read_isoADC_reg_with_crc (isoADCRegisterAddr_e address, uint8_t *response_buffer)

Variables
isoADCConfig_t	gIsoADCConfig
isoADCData_t	gIsoADCData

Detailed Description

Driver for AMC131M03-Q1.

Author

cjlam2

Note

the way this chip works, after every command, the 3 channels of ADC readings will be spit onto the MISO line (5 words total per command).

Macro Definition Documentation

ADC_BITS

#define ADC_BITS   24

ADC_RANGE

#define ADC_RANGE   2.4

ADC_SCALER

#define ADC_SCALER   (1 << ADC_BITS)

ISO_ADC_ID

#define ISO_ADC_ID   0x23

MASK_TO_INT

#define MASK_TO_INT

(

x

)

Value:

(1 << (x))

REG_SIZE

#define REG_SIZE   2

SPI_WAIT_TIME

#define SPI_WAIT_TIME   2

VBUS_RESISTANCE

#define VBUS_RESISTANCE   4000000

VBUS_SENSE_RESISTANCE

#define VBUS_SENSE_RESISTANCE   1000

WORD_PER_XMISSION

#define WORD_PER_XMISSION   5

WORD_SIZE

#define WORD_SIZE   3

XMISSION_SIZE

#define XMISSION_SIZE   (WORD_PER_XMISSION * WORD_SIZE)

Function Documentation

calculate_crc()

uint16_t calculate_crc	(	uint8_t *	data,
		uint8_t	length )

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convert_raw_to_actual()

bool convert_raw_to_actual	(	isoADCConfig_t *	config,
		isoADCData_t *	data_ptr )

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read_isoADC_ADCs()

uint8_t read_isoADC_ADCs	(	isoADCConfig_t const *	cfg_ptr,
		isoADCData_t *	data_ptr )

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read_isoADC_ID()

uint8_t read_isoADC_ID

(

void

)

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read_isoADC_reg_with_crc()

uint8_t read_isoADC_reg_with_crc	(	isoADCRegisterAddr_e	address,
		uint8_t *	response_buffer )

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read_isoADC_register()

uint8_t read_isoADC_register	(	isoADCRegisterAddr_e	address,
		uint8_t *	response_buffer )

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read_isoADC_status()

uint8_t read_isoADC_status

(

isoADCData_t *

data_ptr

)

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wakeup_isoADC()

uint8_t wakeup_isoADC	(	isoADCConfig_t const *	cfg_ptr,
		isoADCData_t *	data_ptr )

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write_isoADC_reg_with_crc()

uint8_t write_isoADC_reg_with_crc	(	isoADCRegisterAddr_e	address,
		uint8_t *	response_buffer,
		uint8_t const *	write_bits )

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write_isoADC_register()

uint8_t write_isoADC_register	(	isoADCRegisterAddr_e	address,
		uint8_t *	response_buffer,
		uint8_t const *	write_bits )

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Variable Documentation

gIsoADCConfig

isoADCConfig_t gIsoADCConfig

gIsoADCData

isoADCData_t gIsoADCData

Initial value:

= {
    
    .raw_shunt_voltage = 0,
    .raw_scaled_bus_voltage = 0,
    .raw_thermistor_voltage = 0,
    .shunt_temp = 0,
    .adjusted_shunt_voltage = 0,
    .reset = true,
    .fuse_fail = true,
    .sec_fail = true,
    .abort_fault = true,
}