/i2c-eeprom

Driver for using Serial EEPROM Products (AT24C family) in AVR-ARM microcontrollers.

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i2c-eeprom

Driver for using Serial EEPROM Products (AT24C family) in AVR-ARM microcontrollers.

Version : 0.0.1

  • Type : Embedded Software.

  • Support : All C/C++ compiler.

  • Program Language : C

  • Properties :

Initialization and de-initialization functions:

I2C_Memory_Init();

Operation functions:

I2C_MemoryIsReady(uint16_t time_out);  
I2C_Memory_SingleWrite(uint32_t address,uint8_t udata,uint16_t time_out);  
I2C_Memory_BurstWrite(uint32_t address,uint8_t *udata,uint32_t size,uint16_t time_out);  
I2C_Memory_SingleRead(uint32_t address,uint8_t *udata,uint16_t time_out);  
I2C_Memory_BurstRead(uint32_t address,uint8_t *udata,uint32_t size,uint16_t time_out);  
I2C_Memory_Erase(uint32_t address,uint32_t quantity,uint16_t time_out);

Macros:

#define _ChipCode  
#define _MEMORY_Ax_PIN_STATE 
#define _WP_DISABLE  
#define _WRITE_PROTECT_PORT  
#define _WRITE_PROTECT_PIN

How to use this library

The I2C Memory library can be used as follows:

1. Add .h and source file in project.

2. Config Chipset in 'i2c_memory_conf.h' header, for example:

  • Options:

    #define _AT24C04 // Chipset code

#define _MEMORY_A0_PIN_STATE 0  // Address pin 0 state
#define _MEMORY_A1_PIN_STATE 1  // Address pin 1 state
#define _MEMORY_A2_PIN_STATE 0  // Address pin 2 state

#define _WP_DISABLE  // Write Protect disable macro

#define _WRITE_PROTECT_PORT  GPIOA  // Connected Port for 'Write Protect'
#define _WRITE_PROTECT_PIN   9      // Connected Pin for 'Write Protect'

3. Config I2C and initialize it.

4. Using initialize methods for initialize hardware and chipset, for example:

I2C_Memory_Init();

5. Using operation methods, for example:

int main(void)
{
   
   I2C_Memory_Init();   // Initialize
      
   while()
   {
     I2C_Memory_SingleWrite(0, 'a', 100);
     
     if (I2C_MemoryIsReady(100) == 0)
     {
       // Memory error
     }
     
   }
}

Supported Chipset:

  • AT24 Series
  • AT25 Series

Developer: Majid Derhambakhsh