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DRAM Click

DRAM 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.

Click Library

  • Author : Stefan Filipovic
  • Date : Aug 2022.
  • Type : SPI type

Software Support

Example Description

This example demonstrates the use of DRAM Click board by writing specified data to the memory and reading it back.

Example Libraries

  • MikroSDK.Board
  • MikroSDK.Log
  • Click.DRAM

Example Key Functions

  • dram_cfg_setup Config Object Initialization function.
void dram_cfg_setup ( dram_cfg_t *cfg );
  • dram_init Initialization function.
err_t dram_init ( dram_t *ctx, dram_cfg_t *cfg );
  • dram_memory_write This function writes a desired number of data bytes starting from the selected memory address.
err_t dram_memory_write ( dram_t *ctx, uint32_t address, uint8_t *data_in, uint32_t len );
  • dram_memory_read This function reads a desired number of data bytes starting from the selected memory address.
err_t dram_memory_read ( dram_t *ctx, uint32_t address, uint8_t *data_out, uint32_t len );
  • dram_memory_read_fast This function reads a desired number of data bytes starting from the selected memory address performing fast read feature.
err_t dram_memory_read_fast ( dram_t *ctx, uint32_t address, uint8_t *data_out, uint32_t len );

Application Init

Initializes the driver, resets the device and checks the communication by reading and verifying the device ID.

void application_init ( void )
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    dram_cfg_t dram_cfg;  /**< Click config object. */

    /** 
     * 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.
    dram_cfg_setup( &dram_cfg );
    DRAM_MAP_MIKROBUS( dram_cfg, MIKROBUS_1 );
    if ( SPI_MASTER_ERROR == dram_init( &dram, &dram_cfg ) )
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }
    
    if ( DRAM_ERROR == dram_reset ( &dram ) )
    {
        log_error( &logger, " Reset device." );
        for ( ; ; );
    }
    Delay_ms ( 100 );
    
    if ( DRAM_ERROR == dram_check_communication ( &dram ) )
    {
        log_error( &logger, " Check communication." );
        for ( ; ; );
    }
    
    log_info( &logger, " Application Task " );
}

Application Task

Writes a desired number of bytes to the memory and then verifies if it is written correctly by reading from the same memory location and displaying the memory content on the USB UART.

void application_task ( void )
{
    uint8_t data_buf[ 128 ] = { 0 };
    log_printf ( &logger, " Memory address: 0x%.6LX\r\n", ( uint32_t ) STARTING_ADDRESS );
    memcpy ( data_buf, DEMO_TEXT_MESSAGE_1, strlen ( DEMO_TEXT_MESSAGE_1 ) );
    if ( DRAM_OK == dram_memory_write ( &dram, STARTING_ADDRESS, data_buf, sizeof ( data_buf ) ) )
    {
        log_printf ( &logger, " Write data: %s\r\n", data_buf );
        Delay_ms ( 100 );
    }
    memset ( data_buf, 0, sizeof ( data_buf ) );
    if ( DRAM_OK == dram_memory_read ( &dram, STARTING_ADDRESS, 
                                             data_buf, sizeof ( data_buf ) ) )
    {
        log_printf ( &logger, " Read data: %s\r\n\n", data_buf );
        Delay_ms ( 1000 );
        Delay_ms ( 1000 );
        Delay_ms ( 1000 );
    }
    log_printf ( &logger, " Memory address: 0x%.6LX\r\n", ( uint32_t ) STARTING_ADDRESS );
    memcpy ( data_buf, DEMO_TEXT_MESSAGE_2, strlen ( DEMO_TEXT_MESSAGE_2 ) );
    if ( DRAM_OK == dram_memory_write ( &dram, STARTING_ADDRESS, data_buf, sizeof ( data_buf ) ) )
    {
        log_printf ( &logger, " Write data: %s\r\n", data_buf );
        Delay_ms ( 100 );
    }
    memset ( data_buf, 0, sizeof ( data_buf ) );
    if ( DRAM_OK == dram_memory_read_fast ( &dram, STARTING_ADDRESS, data_buf, sizeof ( data_buf ) ) )
    {
        log_printf ( &logger, " Fast read data : %s\r\n\n", data_buf );
        Delay_ms ( 1000 );
        Delay_ms ( 1000 );
        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.