driver_ads1118_mutichannel_test.c

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#include "driver_ads1118_mutichannel_test.h"
 
static ads1118_handle_t gs_handle;        

uint8_t ads1118_multichannel_test(ads1118_channel_t channel, uint32_t times)
{
    uint8_t res;
    uint32_t i;
    ads1118_info_t info;
    
    /* link interface function */
    DRIVER_ADS1118_LINK_INIT(&gs_handle, ads1118_handle_t); 
    DRIVER_ADS1118_LINK_SPI_INIT(&gs_handle, ads1118_interface_spi_init);
    DRIVER_ADS1118_LINK_SPI_DEINIT(&gs_handle, ads1118_interface_spi_deinit);
    DRIVER_ADS1118_LINK_SPI_TRANSMIT(&gs_handle, ads1118_interface_spi_transmit);
    DRIVER_ADS1118_LINK_DELAY_MS(&gs_handle, ads1118_interface_delay_ms);
    DRIVER_ADS1118_LINK_DEBUG_PRINT(&gs_handle, ads1118_interface_debug_print);
    
    /* get information */
    res = ads1118_info(&info);
    if (res != 0)
    {
        ads1118_interface_debug_print("ads1118: get info failed.\n");
        
        return 1;
    }
    else
    {
        /* print chip info */
        ads1118_interface_debug_print("ads1118: chip is %s.\n", info.chip_name);
        ads1118_interface_debug_print("ads1118: manufacturer is %s.\n", info.manufacturer_name);
        ads1118_interface_debug_print("ads1118: interface is %s.\n", info.interface);
        ads1118_interface_debug_print("ads1118: driver version is %d.%d.\n", info.driver_version / 1000, (info.driver_version % 1000) / 100);
        ads1118_interface_debug_print("ads1118: min supply voltage is %0.1fV.\n", info.supply_voltage_min_v);
        ads1118_interface_debug_print("ads1118: max supply voltage is %0.1fV.\n", info.supply_voltage_max_v);
        ads1118_interface_debug_print("ads1118: max current is %0.2fmA.\n", info.max_current_ma);
        ads1118_interface_debug_print("ads1118: max temperature is %0.1fC.\n", info.temperature_max);
        ads1118_interface_debug_print("ads1118: min temperature is %0.1fC.\n", info.temperature_min);
    }
    
    /* ads1118 init */
    res = ads1118_init(&gs_handle);
    if (res != 0)
    {
        ads1118_interface_debug_print("ads1118: init failed.\n");
        
        return 1;
    }
    
    /* set range 6.144V */
    res = ads1118_set_range(&gs_handle, ADS1118_RANGE_6P144V);
    if (res != 0)
    {
        ads1118_interface_debug_print("ads1118: set range failed.\n");
        (void)ads1118_deinit(&gs_handle);
        
        return 1;
    }
    
    /* set 128SPS rate */
    res = ads1118_set_rate(&gs_handle, ADS1118_RATE_128SPS);
    if (res != 0)
    {
        ads1118_interface_debug_print("ads1118: set rate failed.\n");
        (void)ads1118_deinit(&gs_handle);
        
        return 1;
    }
    
    /* disable dout pull up */
    res = ads1118_set_dout_pull_up(&gs_handle, ADS1118_BOOL_FALSE);
    if (res != 0)
    {
        ads1118_interface_debug_print("ads1118: set dout pull up failed.\n");
        (void)ads1118_deinit(&gs_handle);
        
        return 1;
    }
    
    /* set adc mode */
    res = ads1118_set_mode(&gs_handle, ADS1118_MODE_ADC);
    if (res != 0)
    {
        ads1118_interface_debug_print("ads1118: set mode failed.\n");
        (void)ads1118_deinit(&gs_handle);
        
        return 1;
    }
    
    /* start multichannel test */
    ads1118_interface_debug_print("ads1118: start multichannel test.\n");
    res = ads1118_set_channel(&gs_handle, channel);
    if (res != 0)
    {
        ads1118_interface_debug_print("ads1118: set channel failed.\n");
        (void)ads1118_deinit(&gs_handle);
        
        return 1;
    }
    for (i = 0; i < times; i++)
    {
        int16_t raw;
        float s;
      
        /* single read */
        res = ads1118_single_read(&gs_handle, (int16_t *)&raw, (float *)&s);
        if (res != 0)
        {
            ads1118_interface_debug_print("ads1118: read failed.\n");
            (void)ads1118_deinit(&gs_handle);
            
            return 1;
        }
        ads1118_interface_debug_print("ads1118: %d/%d voltage is %0.2fV.\n", i + 1, times, s);
        ads1118_interface_delay_ms(1000);
    }
    
    /* finish multichannel test */
    ads1118_interface_debug_print("ads1118: finish multichannel test.\n");
    (void)ads1118_deinit(&gs_handle);
    
    return 0;
}