Skip to content

Latest commit

 

History

History

i2c_eeprom_24c256

Folders and files

NameName
Last commit message
Last commit date

parent directory

..
.vscode
.vscode
 
 
src
src
 
 
README.md
README.md
 
 
platformio.ini
platformio.ini
 
 

README.md

I2C EEPROM 24C256

USART Command

  • Write
    • command: 0x00 <address_1> <address_2> <data>.
    • return: 0xF0 as ACK.
  • Read
    • command: 0x01 <address_1> <address_2>.
    • return: <data>

For example:

>> 0x00 0x00 0x00 0xAB  // Write 0xAB to EEPROM address 0x0000.
<< 0xF0                 // Return from STM32.

>> 0x00 0x00 0x01 0xCD  // Write 0xCD to EEPROM address 0x0001.
<< 0xF0                 // Return from STM32.

>> 0x01 0x00 0x00       // Read EEPROM address 0x0000.
<< 0xAB                 // Data readed.

>> 0x01 0x00 0x01       // Read EEPROM address 0x0001.
<< 0xCD                 // Data readed.

>> 0x00 0x00 0x01 0x39  // Write 0x39 to EEPROM address 0x0001.
<< 0xF0                 // Return from STM32.

>> 0x01 0x00 0x01       // Read EEPROM address 0x0001.
<< 0x39                 // Data readed.

USART params:

  • Baud rate: 9600
  • Data bits: 8
  • Parity: None
  • Stop bits: 1