eeram3v3

---

EERAM 3v3 Click

EERAM 3v3 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 : Jelena Milosavljevic
• Date : Jun 2021.
• Type : I2C type

Software Support

Example Description

This example show using EERAM Click to store the data to the SRAM ( static RAM ) memory. The data is read and written by the I2C serial communication bus, and the memory cells are organized into 2048 bytes, each 8bit wide.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.EERAM3v3

Example Key Functions

• eeram3v3_cfg_setup Config Object Initialization function.

void eeram3v3_cfg_setup ( eeram3v3_cfg_t *cfg );

• eeram3v3_init Initialization function.

err_t eeram3v3_init ( eeram3v3_t *ctx, eeram3v3_cfg_t *cfg );

• eeram3v3_generic_write This function writes a desired number of data bytes starting from the selected register by using I2C serial interface.

void eeram3v3_generic_write ( eeram3v3_t *ctx, uint8_t reg, uint8_t *tx_buf, uint8_t tx_len );

• eeram3v3_generic_read This function reads a desired number of data bytes starting from the selected register by using I2C serial interface.

void eeram3v3_generic_read ( eeram3v3_t *ctx, uint8_t reg, uint8_t *rx_buf, uint8_t rx_len );

• eeram3v3_status_write Status register contains settings for write protection and auto-store function. Use this function to configure them.

void eeram3v3_status_write ( eeram3v3_t *ctx, uint8_t command );

Application Init

EERAM driver nitialization.

void application_init ( void ) 
{
    log_cfg_t log_cfg;             /**< Logger config object. */
    eeram3v3_cfg_t eeram3v3_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.
    
    eeram3v3_cfg_setup( &eeram3v3_cfg );
    EERAM3V3_MAP_MIKROBUS( eeram3v3_cfg, MIKROBUS_1 );
    err_t init_flag = eeram3v3_init( &eeram3v3, &eeram3v3_cfg );
    if ( I2C_MASTER_ERROR == init_flag ) {
        log_error( &logger, " Application Init Error. " );
        log_info( &logger, " Please, run program again... " );

        for ( ; ; );
    }

    log_info( &logger, " Application Task " );
}

Application Task

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

void application_task ( void )
{
    log_info( &logger, "Writing MikroE to  SRAM memory, from address 0x0150:" );
    eeram3v3_write( &eeram3v3, 0x0150, &wr_data, 9 );
    log_info( &logger, "Reading 9 bytes of SRAM memory, from address 0x0150:" );
    eeram3v3_read( &eeram3v3, 0x0150, &rd_data, 9 );
    log_info( &logger, "Data read: %s", 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.

---