Library Description

The library covers all the necessary functions to control EEPROM 7 Click board™. Library performs a standard SPI interface communication.

Key functions:

• (uint8_t *p_tx_data, uint8_t n_bytes) - Write EEPROM memory function.
• ( uint8_t *p_rx_data, uint8_t n_bytes) - Read EEPROM memory function.
• uint8_t eeprom7_is_device_ready ( void ) - Check the device is ready function.

Examples description

The application is composed of three sections :

• System Initialization - Initializes SPI, sets RST, CS and PWM pin as outputs, begins to write log.
• Application Initialization - Initialization driver enables - SPI, also write log.
• Application Task - (code snippet) This is an example that demonstrates the use of the EEPROM 7 Click board™. In this example, we write and then read data from EEPROM memory. Results are being sent to the Usart Terminal where you can track their changes. All data logs write on USB uart changes approximately for every 3 sec.

void application_task ( )
{
    eeprom7_send_cmd( EEPROM7_OPCODE_STATUS_WREN );
    Delay_ms( 100 );
    
    eeprom7_write_memory( 0x00001234, &demo_data[ 0 ], 9 );
    Delay_ms( 100 );
    
    mikrobus_logWrite( " Write data : ", _LOG_TEXT );

    for ( n_cnt = 0; n_cnt < 9; n_cnt++ )
    {
        mikrobus_logWrite( &demo_data[ n_cnt ], _LOG_BYTE );
    }
    
    mikrobus_logWrite( "- - - - - - - - - - -", _LOG_LINE );

    while ( eeprom7_is_device_ready( ) == EEPROM7_DEVICE_IS_READY )
    {
        check_status = eeprom7_send_cmd( EEPROM7_OPCODE_STATUS_WRBP );
        Delay_ms( 1 );
    }

    eeprom7_read_memory( 0x00001234, &read_data[ 0 ], 9 );
    Delay_ms( 100 );
    
    mikrobus_logWrite( " Read data  : ", _LOG_TEXT );
    
    for ( n_cnt = 0; n_cnt < 9; n_cnt++ )
    {
        mikrobus_logWrite( &read_data[ n_cnt ], _LOG_BYTE );
    }

    mikrobus_logWrite( "---------------------", _LOG_LINE );
    Delay_ms( 3000 );
}

Other mikroE Libraries used in the example:

• SPI
• UART
• Conversions

Additional notes and informations

Depending on the development board you are using, you may need USB UART click, USB UART 2 click or RS232 click to connect to your PC, for development systems with no UART to USB interface available on the board. The terminal available in all MikroElektronika compilers, or any other terminal application of your choice, can be used to read the message.