mram2  2.0.0.0
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MRAM 2 click

MRAM 2 Click is a compact add-on board for applications that must store and retrieve data and programs quickly using a small number of pins.

click Product page


Click library

  • Author : MikroE Team
  • Date : Sep 2020.
  • Type : SPI type

Software Support

We provide a library for the Mram2 Click as well as a demo application (example), developed using MikroElektronika compilers. The demo can run on all the main MikroElektronika development boards.

Package can be downloaded/installed directly form compilers IDE(recommended way), or downloaded from our LibStock, or found on mikroE github account.

Library Description

This library contains API for Mram2 Click driver.

Standard key functions :

  • Config Object Initialization function.

    void mram2_cfg_setup ( mram2_cfg_t *cfg );

  • Initialization function.

    MRAM2_RETVAL mram2_init ( mram2_t *ctx, mram2_cfg_t *cfg );

Example key functions :

  • Write Enable function

    void mram2_wren ( mram2_t *ctx );

  • Enter Sleep Mode function

    void mram2_sleep ( mram2_t *ctx );

  • Write Data Bytes function

    void mram2_write ( mram2_t *ctx, uint32_t mem_adr, uint8_t *wr_data, uint8_t n_bytes );

Examples Description

This example demonstrates the use of MRAM 2 Click board.

The demo application is composed of two sections :

Application Init

Initializes the driver, sets the write protect and disables the hold signal.

void application_init ( void )
{
log_cfg_t log_cfg;
// Logger initialization.
LOG_MAP_USB_UART( log_cfg );
log_cfg.level = LOG_LEVEL_DEBUG;
log_cfg.baud = 9600;
log_init( &logger, &log_cfg );
log_info( &logger, "---- Application Init ----" );
// Click initialization.
mram2_cfg_setup( &cfg );
MRAM2_MAP_MIKROBUS( cfg, MIKROBUS_1 );
mram2_init( &mram2, &cfg );
log_printf( &logger, "------------------- \r\n" );
log_printf( &logger, " MRAM 2 Click \r\n" );
log_printf( &logger, "------------------- \r\n" );
log_printf( &logger, " Initialized \r\n" );
log_printf( &logger, "------------------- \r\n" );
Delay_ms( 100 );
}

Application Task

Writes "MikroE" into the first 6 memory locations, and then reads it back and displays it to the USB UART approximately every 5 seconds.

void application_task ( void )
{
mram2_wren( &mram2 );
log_printf( &logger, "Write enabled!\r\n" );
Delay_ms( 100 );
log_printf( &logger, "Writing \"%s\" to memory...\r\n", val_in );
mram2_write( &mram2, 0x000000, &val_in[ 0 ], 6 );
Delay_ms( 100 );
mram2_wrdi ( &mram2 );
log_printf( &logger, "Write disabled!\r\n" );
Delay_ms( 100 );
mram2_read ( &mram2, 0x000000, &val_out[ 0 ], 6 );
log_printf( &logger, "Read data : %s\r\n", val_out );
log_printf( &logger, "-------------------\r\n" );
Delay_ms( 5000 );
}

The full application code, and ready to use projects can be installed directly form compilers IDE(recommneded) or found on LibStock page or mikroE GitHub accaunt.

Other mikroE Libraries used in the example:

  • MikroSDK.Board
  • MikroSDK.Log
  • Click.Mram2

Additional notes and informations

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


mram2_read
void mram2_read(mram2_t *ctx, uint32_t mem_adr, uint8_t *rd_data, uint8_t n_bytes)
Read Data Bytes function.
MRAM2_MAP_MIKROBUS
#define MRAM2_MAP_MIKROBUS(cfg, mikrobus)
Definition: mram2.h:53
mram2_cfg_setup
void mram2_cfg_setup(mram2_cfg_t *cfg)
Config Object Initialization function.
mram2_cfg_t
Click configuration structure definition.
Definition: mram2.h:149
application_task
void application_task(void)
Definition: main.c:65
MRAM2_WP_ENABLE
#define MRAM2_WP_ENABLE
Definition: mram2.h:113
mram2_write
void mram2_write(mram2_t *ctx, uint32_t mem_adr, uint8_t *wr_data, uint8_t n_bytes)
Write Data Bytes function.
MRAM2_HLD_DISABLE
#define MRAM2_HLD_DISABLE
Definition: mram2.h:116
mram2_hold
void mram2_hold(mram2_t *ctx, uint8_t state)
Hold function.
mram2_write_protect
void mram2_write_protect(mram2_t *ctx, uint8_t state)
Write Protect function.
val_in
char val_in[7]
Definition: main.c:31
mram2_wrdi
void mram2_wrdi(mram2_t *ctx)
Write Disable function.
application_init
void application_init(void)
Definition: main.c:36
mram2_wren
void mram2_wren(mram2_t *ctx)
Write Enable function.
mram2_init
MRAM2_RETVAL mram2_init(mram2_t *ctx, mram2_cfg_t *cfg)
Initialization function.
val_out
char val_out[7]
Definition: main.c:32