sram  2.0.0.0
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SRAM click

SRAM Click presents additional 1Mbit SRAM memory that can be added to device.

click Product page


Click library

  • Author : Mihajlo Djordjevic
  • Date : Dec 2019.
  • Type : SPI type

Software Support

We provide a library for the Sram 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 Sram Click driver.

Standard key functions :

  • Config Object Initialization function.

    void sram_cfg_setup ( sram_cfg_t *cfg );

  • Initialization function.

    SRAM_RETVAL sram_init ( sram_t *ctx, sram_cfg_t *cfg );

  • Click Default Configuration function.

    void sram_default_cfg ( sram_t *ctx );

Example key functions :

Examples Description

SRAM Click write and read data from 23LC1024 Serial RAM device.

The demo application is composed of two sections :

Application Init

Application Init performs Logger and Click initialization.

void application_init ( void )
{
log_cfg_t log_cfg;
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_printf( &logger, "--------------------------\r\n" );
log_printf( &logger, " Application Init\r\n" );
Delay_ms ( 100 );
// Click initialization.
sram_cfg_setup( &cfg );
SRAM_MAP_MIKROBUS( cfg, MIKROBUS_1 );
sram_init( &sram, &cfg );
log_printf( &logger, "--------------------------\r\n" );
log_printf( &logger, " ------ SRAM Click ----- \r\n" );
log_printf( &logger, "--------------------------\r\n" );
Delay_ms ( 1000 );
log_printf( &logger, " -- Initialization done --\r\n" );
log_printf( &logger, "--------------------------\r\n" );
Delay_ms ( 1000 );
}

Application Task

SRAM Click communicates with register via SPI protocol by write data to and read data from 23LC1024 Serial RAM device. Results are being sent to the UART where you can track their changes. All data logs on USB UART for aproximetly every 5 sec.

void application_task ( void )
{
log_printf( &logger, " Writing text :\r\n" );
for ( n_cnt = 0; n_cnt < 16; n_cnt++ )
{
Delay_ms ( 100 );
log_printf( &logger, "%c", send_buffer[ n_cnt ] );
}
log_printf( &logger, "\r\n" );
log_printf( &logger, " Read text :\r\n" );
log_printf( &logger, "%s", &mem_data[ 0 ] );
log_printf( &logger, "\r\n" );
log_printf( &logger, "--------------------------\r\n" );
Delay_ms ( 1000 );
}

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.Sram

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.


sram_cfg_t
Click configuration structure definition.
Definition: sram.h:131
sram_cfg_setup
void sram_cfg_setup(sram_cfg_t *cfg)
Config Object Initialization function.
send_buffer
char send_buffer[17]
Definition: main.c:27
n_cnt
uint8_t n_cnt
Definition: main.c:29
SRAM_MAP_MIKROBUS
#define SRAM_MAP_MIKROBUS(cfg, mikrobus)
Definition: sram.h:63
sram_write_byte
void sram_write_byte(sram_t *ctx, uint32_t reg_address, uint8_t write_data)
Generic write byte of data funcion.
application_task
void application_task(void)
Definition: main.c:69
mem_data
char mem_data[17]
Definition: main.c:28
sram_read_byte
uint8_t sram_read_byte(sram_t *ctx, uint32_t reg_address)
Generic read byte of data funcion.
application_init
void application_init(void)
Definition: main.c:38
sram_init
SRAM_RETVAL sram_init(sram_t *ctx, sram_cfg_t *cfg)
Initialization function.