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mikroSDK Library

SRAM 2 click

Rating:

5

Author: MIKROE

Last Updated: 2020-07-16

Package Version: 1.0.0.0

mikroSDK Library: 1.0.0.0

Category: SRAM

Downloaded: 3275 times

Not followed.

License: MIT license  

SRAM 2 Click is based on ANV32A62A SRAM memory from Anvo-Systems Dresden. It's a 64Kb serial SRAM with a non-volatile SONOS storage element included with each memory cell, organized as 8k words of 8 bits each. The devices are accessed by a two-wire bus. Up to 4 cascadable devices can share the common bus.

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  • mikroSDK Library 2.0.0.0
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mikroSDK Library Blog

SRAM 2 Click

SRAM 2 Click

Native view of the SRAM 2 Click board.

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SRAM 2 Click

SRAM 2 Click

Front and back view of the SRAM 2 Click board.

View full image

Library Description

Library provides control over reading and writing data via I2C module. You can use 2 specific functions for reading and writing to memory.

Key functions:

  • void sram2_write_protect( uint8_t state ) - Write protect data selection
  • void sram2_write_memory( uint16_t addr, uint8_t wr_data ) - Generic write data function
  • uint8_t sram2_read_memory( uint16_t addr ) - Generic read data function

Examples description

The application is composed of three sections :

  • System Initialization - Initializes I2C module
  • Application Initialization - Initializes driver init
  • Application Task - Writes and then reads data from memory
void application_task ( )
{
     uint8_t cnt;
     
     mikrobus_logWrite( ">> Write data [MikroE] to memory.", _LOG_LINE );
     sram2_write_protect( SRAM2_WR_ENABLE );
     for ( cnt = 0; cnt < 8; cnt++ )
     {
         sram2_write_memory( memory_addr + cnt, message_data[ cnt ] );
     }
     Delay_ms( 1000 );
     sram2_write_protect( SRAM2_WR_DISABLE );
     mikrobus_logWrite( ">> Read data from memory. Data : ", _LOG_TEXT );
     for ( cnt = 0; cnt < 8; cnt++ )
     {
         rx_data = sram2_read_memory( memory_addr + cnt );
         mikrobus_logWrite( &rx_data, _LOG_BYTE );
         mikrobus_logWrite( " ", _LOG_TEXT );
         Delay_100ms();
     }
     mikrobus_logWrite( " ", _LOG_LINE );
     mikrobus_logWrite( "--------------------------------", _LOG_LINE );
     Delay_ms( 2000 );
}

Other mikroE Libraries used in the example:

  • I2C Library
  • UART Library

Additional notes and informations

Depending on the development board you are using, you may need USB UART clickUSB 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.

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