driver_max31865_read_test.c

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#include "driver_max31865_read_test.h"
 
static max31865_handle_t gs_handle;        

uint8_t max31865_read_test(max31865_wire_t wire, max31865_resistor_t type, float ref_resistor, uint32_t times)
{
    uint8_t res;
    uint32_t i;
    max31865_info_t info;
    
    /* 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);
    
    /* get chip information */
    res = max31865_info(&info);
    if (res != 0)
    {
        max31865_interface_debug_print("max31865: get info failed.\n");
       
        return 1;
    }
    else
    {
        /* print chip information */
        max31865_interface_debug_print("max31865: chip is %s.\n", info.chip_name);
        max31865_interface_debug_print("max31865: manufacturer is %s.\n", info.manufacturer_name);
        max31865_interface_debug_print("max31865: interface is %s.\n", info.interface);
        max31865_interface_debug_print("max31865: driver version is %d.%d.\n", info.driver_version / 1000, (info.driver_version % 1000) / 100);
        max31865_interface_debug_print("max31865: min supply voltage is %0.1fV.\n", info.supply_voltage_min_v);
        max31865_interface_debug_print("max31865: max supply voltage is %0.1fV.\n", info.supply_voltage_max_v);
        max31865_interface_debug_print("max31865: max current is %0.2fmA.\n", info.max_current_ma);
        max31865_interface_debug_print("max31865: max temperature is %0.1fC.\n", info.temperature_max);
        max31865_interface_debug_print("max31865: min temperature is %0.1fC.\n", info.temperature_min);
    }
    
    /* max31865 init */
    res = max31865_init(&gs_handle);
    if (res != 0)
    {
        max31865_interface_debug_print("max31865: init failed.\n");
       
        return 1;
    }
    
    /* set filter select 50Hz */
    res = max31865_set_filter_select(&gs_handle, MAX31865_FILTER_SELECT_50HZ);
    if (res != 0)
    {
        max31865_interface_debug_print("max31865: set filter select failed.\n");
        (void)max31865_deinit(&gs_handle);       
        
        return 1;
    }
    
    /* set wire */
    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 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 automatic delay */
    res = max31865_set_fault_detection_cycle_control(&gs_handle, MAX31865_FAULT_DETECTION_CYCLE_CONTROL_AUTOMATIC_DELAY);
    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, 0xFFFEU);
    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, 0x0000U);
    if (res != 0)
    {
        max31865_interface_debug_print("max31865: set low fault threshold failed.\n");
        (void)max31865_deinit(&gs_handle);
        
        return 1;
    }
    
    /* start read test */
    max31865_interface_debug_print("max31865: start read test.\n");
    
    /* continuous read test test */
    max31865_interface_debug_print("max31865: continuous read test test.\n");
    
    /* start continuous */
    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;
    }
    for (i = 0; i < times; i++)
    {
        uint16_t raw;
        float temp;
        
        /* delay 2000 ms */
        max31865_interface_delay_ms(2000);
    
        /* read data */
        res = max31865_continuous_read(&gs_handle, (uint16_t *)&raw, (float *)&temp);
        if (res != 0)
        {
            max31865_interface_debug_print("max31865: read failed.\n");
            (void)max31865_deinit(&gs_handle);
            
            return 1;
        }
        max31865_interface_debug_print("max31865: continuous read %0.2fC.\n", temp); 
    }
 
    /* stop continuous read */
    res = max31865_stop_continuous_read(&gs_handle);
    if (res != 0)
    {
        max31865_interface_debug_print("max31865: stop continuous read failed.\n");
        (void)max31865_deinit(&gs_handle);
        
        return 1;
    }
 
    /* single read test */
    max31865_interface_debug_print("max31865: single read test.\n");
    for (i = 0; i < times; i++)
    {
        uint16_t raw;
        float temp;
        
        /* delay 2000 ms */
        max31865_interface_delay_ms(2000);
 
        /* single read */
        res = max31865_single_read(&gs_handle, (uint16_t *)&raw, (float *)&temp);
        if (res != 0)
        {
            max31865_interface_debug_print("max31865: read failed.\n");
            (void)max31865_deinit(&gs_handle);
            
            return 1;
        }
        max31865_interface_debug_print("max31865: single read %0.2fC.\n", temp);
    }
 
    /* finish read test */
    max31865_interface_debug_print("max31865: finish read test.\n");
    (void)max31865_deinit(&gs_handle);
    
    return 0;
}