driver_max31865_basic.c

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#include "driver_max31865_basic.h"
 
static max31865_handle_t gs_handle;        

uint8_t max31865_basic_init(max31865_wire_t wire, max31865_resistor_t type, float ref_resistor)
{
    uint8_t res;
    
    /* link function */
    DRIVER_MAX31865_LINK_INIT(&gs_handle, max31865_handle_t);
    DRIVER_MAX31865_LINK_SPI_INIT(&gs_handle, max31865_interface_spi_init);
    DRIVER_MAX31865_LINK_SPI_DEINIT(&gs_handle, max31865_interface_spi_deinit);
    DRIVER_MAX31865_LINK_SPI_READ(&gs_handle, max31865_interface_spi_read);
    DRIVER_MAX31865_LINK_SPI_WRITE(&gs_handle, max31865_interface_spi_write);
    DRIVER_MAX31865_LINK_DELAY_MS(&gs_handle, max31865_interface_delay_ms);
    DRIVER_MAX31865_LINK_DEBUG_PRINT(&gs_handle, max31865_interface_debug_print);
    
    /* max31865 init */
    res = max31865_init(&gs_handle);
    if (res != 0)
    {
        max31865_interface_debug_print("max31865: init failed.\n");
        
        return 1;
    }
    
    /* set filter */
    res = max31865_set_filter_select(&gs_handle, MAX31865_BASIC_DEFAULT_FILTER_SELECT);
    if (res != 0)
    {
        max31865_interface_debug_print("max31865: set filter select failed.\n");
        (void)max31865_deinit(&gs_handle);
        
        return 1;
    }
    
    /* set wire type */
    res = max31865_set_wire(&gs_handle, wire);
    if (res != 0)
    {
        max31865_interface_debug_print("max31865: set wire failed.\n");
        (void)max31865_deinit(&gs_handle);
        
        return 1;
    }
    
    /* set PT resistor type */
    res = max31865_set_resistor(&gs_handle, type);
    if (res != 0)
    {
        max31865_interface_debug_print("max31865: set resistor type failed.\n");
        (void)max31865_deinit(&gs_handle);
        
        return 1;
    }
    
    /* set reference resistor */
    res = max31865_set_reference_resistor(&gs_handle, ref_resistor);
    if (res != 0)
    {
        max31865_interface_debug_print("max31865: set reference resistor failed.\n");
        (void)max31865_deinit(&gs_handle);
        
        return 1;
    }
    
    /* set fault detection cycle control */
    res = max31865_set_fault_detection_cycle_control(&gs_handle, MAX31865_BASIC_DEFAULT_FAULT_DETECTION_CYCLE_CONTROL);
    if (res != 0)
    {
        max31865_interface_debug_print("max31865: set fault detection cycle control failed.\n");
        (void)max31865_deinit(&gs_handle);
        
        return 1;
    }
    
    /* set high fault threshold */
    res = max31865_set_high_fault_threshold(&gs_handle, MAX31865_BASIC_DEFAULT_HIGH_FAULT_THRESHOLD);
    if (res != 0)
    {
        max31865_interface_debug_print("max31865: set high fault threshold failed.\n");
        (void)max31865_deinit(&gs_handle);
        
        return 1;
    }
    
    /* set low fault threshold */
    res = max31865_set_low_fault_threshold(&gs_handle, MAX31865_BASIC_DEFAULT_LOW_FAULT_THRESHOLD);
    if (res != 0)
    {
        max31865_interface_debug_print("max31865: set low fault threshold failed.\n");
        (void)max31865_deinit(&gs_handle);
        
        return 1;
    }
    
    /* start continuous read */
    res = max31865_start_continuous_read(&gs_handle);
    if (res != 0)
    {
        max31865_interface_debug_print("max31865: start continuous read failed.\n");
        (void)max31865_deinit(&gs_handle);
        
        return 1;
    }
    
    return 0;
}

uint8_t max31865_basic_read(float *temp)
{
    uint16_t raw;
    
    /* continuous read */
    if (max31865_continuous_read(&gs_handle, (uint16_t *)&raw, temp) != 0)
    {
        return 1;
    }
    else
    {
        return 0;
    }
}

uint8_t max31865_basic_deinit(void)
{
    uint8_t res;
    
    /* stop continuous read */
    res = max31865_stop_continuous_read(&gs_handle);
    if (res != 0)
    {
        return 1;
    }
    
    /* deinit */
    if (max31865_deinit(&gs_handle) != 0)
    {
        return 1;
    }
    else
    {
        return 0;
    }
}