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mikroSDK Library

nvSRAM click

Rating:

5

Author: MIKROE

Last Updated: 2020-12-24

Package Version: 1.0.0.0

mikroSDK Library: 1.0.0.0

Category: SRAM

Downloaded: 2165 times

Not followed.

License: MIT license  

nvSRAM Click is a compact add-on board that contains the most reliable nonvolatile memory. This board features the CY14B101J, a 1-Mbit nvSRAM organized as 128K words of 8 bits each with a nonvolatile element in each memory cell from Cypress Semiconductor.

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  • mikroSDK Library 2.0.0.0
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mikroSDK Library Blog

nvSRAM Click

nvSRAM Click

Native view of the nvSRAM Click board.

View full image
nvSRAM Click

nvSRAM Click

Front and back view of the nvSRAM Click board.

View full image

Library Description

The library covers all the necessary functions to control nvSRAM Click board™. Library performs a standard I2C interface communication.

Key functions:

  • uint32_t nvsram_read_dev_id ( void ) - Read device ID function.
  • void nvsram_memory_write ( uint32_t mem_adr, uint8_t *p_tx_data, uint16_t n_bytes ) - Write memory function.
  • void nvsram_memory_read ( uint32_t mem_adr, uint8_t *p_rx_data, uint16_t n_bytes ) - Read memory function.

Examples description

The application is composed of three sections :

  • System Initialization - Initializes I2C, set PWM pin as outputs, begins to write log.
  • Application Initialization - Initialization driver enables - I2C, lock Serial Number write, disable Block Protection and enable Memory Write, also write log.
  • Application Task - (code snippet) This is an example that demonstrates the use of the nvSRAM Click board™. In this example, we write and then read data from nvSRAM memory. Results are being sent to the Usart Terminal where you can track their changes. All data logs write on USB uart changes approximately for every 5 sec.
void application_task ( )
{
    mikrobus_logWrite( "  Write data : ", _LOG_TEXT );
    mikrobus_logWrite( demo_data, _LOG_TEXT );
    nvsram_memory_write( 12345, &demo_data[ 0 ], 9 );
    mikrobus_logWrite( "- - - - - - - - - - - -", _LOG_LINE );
    Delay_ms( 100 );

    mikrobus_logWrite( "  Read data  : ", _LOG_TEXT );
    nvsram_memory_read( 12345, &read_data[ 0 ], 9 );
    mikrobus_logWrite( read_data, _LOG_TEXT );
    mikrobus_logWrite( "-----------------------", _LOG_LINE );
    Delay_ms( 5000 );
}

Other mikroE Libraries used in the example:

  • I2C
  • UART

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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