driver_at24cxx_read_test.c

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#include "driver_at24cxx_read_test.h"
#include <stdlib.h>
 
static at24cxx_handle_t gs_handle;        
uint8_t at24cxx_read_test(at24cxx_t type, at24cxx_address_t address)
{
    uint8_t res, i, j;
    uint8_t buf[12];
    uint8_t buf_check[12];
    uint32_t inc;
    at24cxx_info_t info;
    
    /* link interface function */
    DRIVER_AT24CXX_LINK_INIT(&gs_handle, at24cxx_handle_t);
    DRIVER_AT24CXX_LINK_IIC_INIT(&gs_handle, at24cxx_interface_iic_init);
    DRIVER_AT24CXX_LINK_IIC_DEINIT(&gs_handle, at24cxx_interface_iic_deinit);
    DRIVER_AT24CXX_LINK_IIC_READ(&gs_handle, at24cxx_interface_iic_read);
    DRIVER_AT24CXX_LINK_IIC_WRITE(&gs_handle, at24cxx_interface_iic_write);
    DRIVER_AT24CXX_LINK_IIC_READ_ADDRESS16(&gs_handle, at24cxx_interface_iic_read_address16);
    DRIVER_AT24CXX_LINK_IIC_WRITE_ADDRESS16(&gs_handle, at24cxx_interface_iic_write_address16);
    DRIVER_AT24CXX_LINK_DELAY_MS(&gs_handle, at24cxx_interface_delay_ms);
    DRIVER_AT24CXX_LINK_DEBUG_PRINT(&gs_handle, at24cxx_interface_debug_print);
    
    /* get information */
    res = at24cxx_info(&info);
    if (res != 0)
    {
        at24cxx_interface_debug_print("at24cxx: get info failed.\n");
       
        return 1;
    }
    else
    {
        /* print chip information */
        at24cxx_interface_debug_print("at24cxx: chip is %s.\n", info.chip_name);
        at24cxx_interface_debug_print("at24cxx: manufacturer is %s.\n", info.manufacturer_name);
        at24cxx_interface_debug_print("at24cxx: interface is %s.\n", info.interface);
        at24cxx_interface_debug_print("at24cxx: driver version is %d.%d.\n", info.driver_version / 1000, (info.driver_version % 1000) / 100);
        at24cxx_interface_debug_print("at24cxx: min supply voltage is %0.1fV.\n", info.supply_voltage_min_v);
        at24cxx_interface_debug_print("at24cxx: max supply voltage is %0.1fV.\n", info.supply_voltage_max_v);
        at24cxx_interface_debug_print("at24cxx: max current is %0.2fmA.\n", info.max_current_ma);
        at24cxx_interface_debug_print("at24cxx: max temperature is %0.1fC.\n", info.temperature_max);
        at24cxx_interface_debug_print("at24cxx: min temperature is %0.1fC.\n", info.temperature_min);
    }
    
    /* set chip type */
    res = at24cxx_set_type(&gs_handle, type);
    if (res != 0)
    {
        at24cxx_interface_debug_print("at24cxx: set type failed.\n");
       
        return 1;
    }
    
    /* set iic addr pin */
    res = at24cxx_set_addr_pin(&gs_handle, address);
    if (res != 0)
    {
        at24cxx_interface_debug_print("at24cxx: set address pin failed.\n");
       
        return 1;
    }
    
    /* at24cxx init */
    res = at24cxx_init(&gs_handle);
    if (res != 0)
    {
        at24cxx_interface_debug_print("at24cxx: init failed.\n");
       
        return 1;
    }
    
    /* start read test */
    at24cxx_interface_debug_print("at24cxx: start read test.\n");
    inc = ((uint32_t)type + 1) / 8;
    for (i = 0; i < 8; i++)
    {
        for (j = 0; j < 12; j++)
        {
            buf[j] = (uint8_t)(rand() % 256);
        }
    
        /* write data */
        res = at24cxx_write(&gs_handle, i*inc, (uint8_t *)buf, 12);
        if (res != 0)
        {
            at24cxx_interface_debug_print("at24cxx: write failed.\n");
            (void)at24cxx_deinit(&gs_handle);
            
            return 1;
        }
 
        /* read data */
        res = at24cxx_read(&gs_handle, i*inc, (uint8_t *)buf_check, 12);
        if (res != 0)
        {
            at24cxx_interface_debug_print("at24cxx: read failed.\n");
            (void)at24cxx_deinit(&gs_handle);
            
            return 1;
        }
        for (j = 0; j < 12; j++)
        {
            /* check data */
            if (buf[j] != buf_check[j])
            {
                at24cxx_interface_debug_print("at24cxx: check error.\n");
                (void)at24cxx_deinit(&gs_handle);
                
                return 1;
            }
        }
        at24cxx_interface_debug_print("at24cxx: 0x%04X read write test passed.\n", i*inc);
    }
 
    /* finish read test */
    at24cxx_interface_debug_print("at24cxx: finish read test.\n");
    (void)at24cxx_deinit(&gs_handle);
    
    return 0;
}