Library Description

The library initializes and defines the SPI bus and drivers that offer a choice for writing data in memory and reads data from memory. The library includes function for controling configuration of the device, software reset and erasing memory.

Key functions:

• void flash5_send_cmd ( uint8_t cmd_data ) - Sends one Byte of data
• void flash5_page_read_memory ( uint16_t column_addr, uint8_t *data_buf, uint16_t buf_size ) - Reads data from memory to buffer
• void flash5_page_load_memory ( uint16_t column_addr, uint8_t *data_buf, uint16_t buf_size ) - Writes data to memory from buffer
• uint8_t flash5_read_status_data ( uint8_t status_cmd, uint8_t status_addr ) - Reads status of selected status registar
• void flash5_write_status_data ( uint8_t status_cmd, uint8_t status_addr, uint8_t status_data ) - Writes status to selected status registar
• void flash5_erase_chip ( void ) - Erases whole device memory
• void flash5_software_reset ( void ) - Resets device

Examples description

The application is composed of three sections :

• System Initialization - Initializes SPI module
• Application Initialization - Initializes driver, resets device, erasing one page of memory, tests communication and configures device
• Application Task - Writes "MikroE" to device memory and then reads it and sends it to log

void applicationTask( )
{
    uint8_t n_counter;

    flash5_send_cmd( FLASH5_CMD_WRITE_ENABLE );
    flash5_page_load_memory( 0x000A, &write_buf[ 0 ], 6 );
    flash5_page_read_memory( 0x000A, &read_buf[ 0 ], 6 );

    for( n_counter = 0; n_counter < 6; n_counter++ )
    {
        mikrobus_logWrite( &read_buf[ n_counter ], _LOG_BYTE );
        Delay_ms( 100 );
    }
    
    mikrobus_logWrite( "", _LOG_LINE );
    mikrobus_logWrite( "-------------------", _LOG_LINE );
    Delay_ms( 5000 );
}

Other mikroE Libraries used in the example:

• SPI
• Conversions
• UART

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.