max31889.h

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/***************************************************************************/
 
#ifndef MAX31889_H
#define MAX31889_H
 
#include <errno.h>
#include "no_os_i2c.h"
 
#define MAX31889_REG_STATUS             0x00
#define MAX31889_REG_INT_ENABLE         0x01
#define MAX31889_REG_FIFO_WRITE_PTR     0x04
#define MAX31889_REG_FIFO_READ_PTR      0x05
#define MAX31889_REG_OVERL_CNT          0x06
#define MAX31889_REG_DATA_CNT           0x07
#define MAX31889_REG_FIFO_DATA          0x08
#define MAX31889_REG_FIFO_CONFIG        0x09
#define MAX31889_REG_FIFO_CONFIG2       0x0A
#define MAX31889_REG_SYS_CNTRL          0x0C
#define MAX31889_REG_ALARM_HIGH_MSB     0x10
#define MAX31889_REG_ALARM_HIGH_LSB     0x11
#define MAX31889_REG_ALARM_LOW_MSB      0x12
#define MAX31889_REG_ALARM_LOW_LSB      0x13
#define MAX31889_REG_TEMP_SETUP         0x14
#define MAX31889_REG_GPIO_SETUP         0x20
#define MAX31889_REG_GPIO_CNTRL         0x21
#define MAX31889_REG_PART_ID            0xFF
 
#define MAX31889_MAX_CONV_STEPS         10
#define MAX31889_CONV_RATE              0.005
 
#define MAX31889_MEASUREMENT_TRIG_VALUE 0xC1
#define TEMP_MEAS_WAIT_UNTIL_ERROR_MS   1000
 
struct max31889_desc {
    struct no_os_i2c_desc *i2c_desc;
};
 
struct max31889_init_param {
    struct no_os_i2c_init_param *i2c_ip;
};
 
int32_t max31889_trig_conversion(struct max31889_desc*);
int32_t max31889_write_reg(struct max31889_desc*, uint8_t, uint8_t*, uint8_t);
int32_t max31889_read_reg(struct max31889_desc*, uint8_t, uint8_t*, uint8_t);
int32_t max31889_trig_and_read_temp(struct max31889_desc*, double*);
int32_t max31889_init(struct max31889_desc**, struct max31889_init_param*);
int32_t max31889_remove(struct max31889_desc*);
 
#endif