flash2

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Flash 2 Click

Flash 2 Click demo application is developed using the NECTO Studio, ensuring compatibility with mikroSDK's open-source libraries and tools. Designed for plug-and-play implementation and testing, the demo is fully compatible with all development, starter, and mikromedia boards featuring a mikroBUS™ socket.

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Click Library

• Author : MikroE Team
• Date : Feb 2020.
• Type : SPI type

Software Support

Example Description

This example demonstrates the process of writing and reading data from Flash 2 Click memory.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.Flash2

Example Key Functions

• flash2_cfg_setup Config Object Initialization function.

void flash2_cfg_setup ( flash2_cfg_t *cfg );

• flash2_init Initialization function.

err_t flash2_init ( flash2_t *ctx, flash2_cfg_t *cfg );

• flash2_default_cfg Click Default Configuration function.

void flash2_default_cfg ( flash2_t *ctx );

• flash2_global_block_unlock The Global Block-Protection Unlock instruction.

void flash2_global_block_unlock ( flash2_t *ctx  );

• flash2_chip_erase The Chip-Erase instruction clears all bits.

void flash2_chip_erase ( flash2_t *ctx  );

• flash2_read_generic The Read instruction, 03H, is supported in SPI bus protocol only with clock frequencies up to 40 MHz.

void flash2_read_generic ( flash2_t *ctx, uint32_t address, uint8_t *buffer, uint32_t data_count  );

Application Init

Flash Driver Initialization, initialization of Click by setting mikorBUS to approprieate logic levels, performing global block unlock and chip erase functions.

void application_init ( void )
{
    log_cfg_t log_cfg;
    flash2_cfg_t cfg;

    /** 
     * Logger initialization.
     * Default baud rate: 115200
     * Default log level: LOG_LEVEL_DEBUG
     * @note If USB_UART_RX and USB_UART_TX 
     * are defined as HAL_PIN_NC, you will 
     * need to define them manually for log to work. 
     * See @b LOG_MAP_USB_UART macro definition for detailed explanation.
     */
    LOG_MAP_USB_UART( log_cfg );
    log_init( &logger, &log_cfg );
    log_info( &logger, "---- Application Init ----" );

    //  Click initialization.

    flash2_cfg_setup( &cfg );
    FLASH2_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    flash2_init( &flash2, &cfg );
    Delay_ms ( 300 );
    flash2_global_block_unlock( &flash2 );
    Delay_ms ( 400 );
    flash2_chip_erase( &flash2 );
    Delay_ms ( 300 );
}

Application Task

Writing data to Click memory and displaying the read data via UART.

void application_task ( void )
{
    log_printf( &logger, "Writing MikroE to flash memory, from address 0x015015:\r\n" );
    flash2_write_generic( &flash2, 0x015015, &wr_data[ 0 ], 9 );
    log_printf( &logger, "Reading 9 bytes of flash memory, from address 0x015015:\r\n" );
    flash2_read_generic( &flash2, 0x015015, &rd_data[ 0 ], 9 );
    log_printf( &logger, "Data read: %s\r\n", rd_data );
    Delay_ms ( 1000 );
}

Application Output

This Click board can be interfaced and monitored in two ways:

• Application Output - Use the "Application Output" window in Debug mode for real-time data monitoring. Set it up properly by following this tutorial.
• UART Terminal - Monitor data via the UART Terminal using a USB to UART converter. For detailed instructions, check out this tutorial.

Additional Notes and Information

The complete application code and a ready-to-use project are available through the NECTO Studio Package Manager for direct installation in the NECTO Studio. The application code can also be found on the MIKROE GitHub account.

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