eeprom7  2.0.0.0
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EEPROM 7 click

EEPROM 7 Click is a compact add-on board that contains the highest-density memory solution. This board feature the 25CSM04, a 4-Mbit SPI Serial EEPROM with a 128-bit serial number and enhanced write protection mode from Microchip. Internally organized as 2,048 pages of 256 bytes each, the 25CSM04 comes up with the compatible SPI serial interface.

click Product page


Click library

  • Author : Stefan Ilic
  • Date : Jul 2021.
  • Type : SPI type

Software Support

We provide a library for the EEPROM7 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 from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.

Library Description

This library contains API for EEPROM7 Click driver.

Standard key functions :

Example key functions :

Example Description

This is an example that demonstrates the use of the EEPROM 7 Click board.

The demo application is composed of two sections :

Application Init

Initialization driver enables - SPI, also write log.

void application_init ( void ) {
log_cfg_t log_cfg;
eeprom7_cfg_t eeprom7_cfg;
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, " Application Init " );
// Click initialization.
eeprom7_cfg_setup( &eeprom7_cfg );
EEPROM7_MAP_MIKROBUS( eeprom7_cfg, MIKROBUS_1 );
err_t init_flag = eeprom7_init( &eeprom7, &eeprom7_cfg );
if ( SPI_MASTER_ERROR == init_flag ) {
log_error( &logger, " Application Init Error. " );
log_info( &logger, " Please, run program again... " );
for ( ; ; );
}
eeprom7_default_cfg ( &eeprom7 );
log_info( &logger, " Application Task " );
}

Application Task

In this example, we write and then read data from EEPROM 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 3 sec.

void application_task ( void ) {
Delay_ms( 100 );
eeprom7_write_memory( &eeprom7, 0x00001234, &demo_data[ 0 ], 9 );
Delay_ms( 100 );
log_printf( &logger, " > Write data: %s", demo_data );
check_status = eeprom7_send_cmd( &eeprom7, EEPROM7_OPCODE_STATUS_WRBP );
Delay_ms( 1 );
}
eeprom7_read_memory( &eeprom7, 0x00001234, &read_data[ 0 ], 9 );
Delay_ms( 100 );
log_printf( &logger, " > Read data: %s", read_data );
log_printf( &logger, "---------------------\r\n" );
Delay_ms( 3000 );
}

The full application code, and ready to use projects can be installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.

Other Mikroe Libraries used in the example:

  • MikroSDK.Board
  • MikroSDK.Log
  • Click.EEPROM7

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.


eeprom7_t
EEPROM 7 Click context object.
Definition: eeprom7.h:169
EEPROM7_OPCODE_STATUS_WRBP
#define EEPROM7_OPCODE_STATUS_WRBP
Definition: eeprom7.h:70
EEPROM7_MAP_MIKROBUS
#define EEPROM7_MAP_MIKROBUS(cfg, mikrobus)
MikroBUS pin mapping.
Definition: eeprom7.h:153
eeprom7_write_memory
void eeprom7_write_memory(eeprom7_t *ctx, uint32_t addr, uint8_t *p_tx_data, uint8_t n_bytes)
Write EEPROM memory function.
eeprom7_send_cmd
err_t eeprom7_send_cmd(eeprom7_t *ctx, uint8_t cmd)
Send command function.
eeprom7_default_cfg
err_t eeprom7_default_cfg(eeprom7_t *ctx)
EEPROM 7 default configuration function.
application_task
void application_task(void)
Definition: main.c:68
eeprom7_sw_reset
void eeprom7_sw_reset(eeprom7_t *ctx)
Software device reset function.
eeprom7_init
err_t eeprom7_init(eeprom7_t *ctx, eeprom7_cfg_t *cfg)
EEPROM 7 initialization function.
eeprom7_cfg_setup
void eeprom7_cfg_setup(eeprom7_cfg_t *cfg)
EEPROM 7 configuration object setup function.
eeprom7_is_device_ready
uint8_t eeprom7_is_device_ready(eeprom7_t *ctx)
Check the device is ready function.
eeprom7_read_memory
void eeprom7_read_memory(eeprom7_t *ctx, uint32_t addr, uint8_t *p_rx_data, uint8_t n_bytes)
Read EEPROM memory function.
eeprom7_cfg_t
EEPROM 7 Click configuration object.
Definition: eeprom7.h:186
application_init
void application_init(void)
Definition: main.c:35
EEPROM7_OPCODE_STATUS_WREN
#define EEPROM7_OPCODE_STATUS_WREN
Definition: eeprom7.h:71
EEPROM7_DEVICE_IS_READY
#define EEPROM7_DEVICE_IS_READY
Definition: eeprom7.h:135