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mikroSDK Library

Flash 3 click

Rating:

8

Author: MikroElektronika Team

Last Updated: 2019-05-03

Category: Storage

Downloaded: 1011 times

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Flash 3 click is a mikroBUS add-on board for adding more Flash Memory to your target board microcontroller. It carries an ISSI IS25LP128 IC with 128 Mbit capacity.

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mikroSDK Library Blog

Front / Back view

Front / Back view

Front and back view of Flash 3 click board

View full image

Library Description

The library covers all the necessary functions that enables the usage of the Flash 3 click board. It offer a choice for writing and reading into and from memory array, also user can access status, and function register and use diferent erase functions. For additional functionality user can check the state of HLD, CE and PW pins.

Key functions:

  • void flash3_normalRead( uint32_t addr, uint8_t* buff, uint32_t cnt ) - Function is used to read memory contents at a maximum frequency of 50MHz.
  • void flash3_write( uint32_t addr, uint8_t *buff, uint32_t cnt ) - Function is used to write data into Flash 3 device.
  • void flash3_fastRead( uint32_t addr, uint8_t* buff, uint32_t cnt ) - Function is used to read memory contents at a maximum frequency of 133MHz.

Examples description

The application is composed of the three sections :

  • System Initialization - Initializes SPI module, LOG and GPIO structures, sets RST, CS and PWM pins as input.
  • Application Initialization - Initalizes SPI driver, Flash 3 click board and makes an initial log.
  • Application Task - (code snippet) This is an example that shows the capabilities of the Flash 3 click by writing into memory array of a Flash 3 click board and reading same data from memory array.
void applicationTask( )
{
    mikrobus_logWrite( "", _LOG_LINE );
    mikrobus_logWrite( "____________________", _LOG_LINE );
    mikrobus_logWrite( "Begin demonstration!", _LOG_LINE );
    mikrobus_logWrite( "", _LOG_LINE );

    mikrobus_logWrite( "Writing : ", _LOG_TEXT );
    mikrobus_logWrite( valIn, _LOG_LINE );
    flash3_write( 0x000000, &valIn[ 0 ], 6 );
    Delay_ms( 100 );
    mikrobus_logWrite( "------------------", _LOG_LINE );

    mikrobus_logWrite( "Reading : ", _LOG_TEXT );
    flash3_normalRead( 0x000000, &valOut[ 0 ], 6 );
    mikrobus_logWrite( valOut, _LOG_LINE );
    Delay_ms( 100 );
    mikrobus_logWrite( "------------------", _LOG_LINE );

    mikrobus_logWrite( "Erasing...", _LOG_LINE );
    flash3_sectorErase( 0x000000 );
    Delay_ms( 300 );
    mikrobus_logWrite( "Erased!", _LOG_LINE );
    Delay_ms( 100 );
    mikrobus_logWrite( "------------------", _LOG_LINE );

    mikrobus_logWrite( "Reading : ", _LOG_TEXT );
    flash3_fastRead( 0x000000, &valOut[ 0 ], 6 );
    mikrobus_logWrite( valOut, _LOG_LINE );
    Delay_ms( 100 );
    mikrobus_logWrite( "------------------", _LOG_LINE );

    mikrobus_logWrite( "Demonstration over!", _LOG_LINE );
    mikrobus_logWrite( "___________________", _LOG_LINE );
    mikrobus_logWrite( "", _LOG_LINE );
    Delay_ms( 5000 );
}

Other mikroE Libraries used in the example:

  • SPI
  • 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.

Schematic

Schematic

Flash 3 click board schematic

View full image

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