SPRACS8 May   2022 TMS320F2800132 , TMS320F2800133 , TMS320F2800135 , TMS320F2800137 , TMS320F2800152-Q1 , TMS320F2800153-Q1 , TMS320F2800154-Q1 , TMS320F2800155 , TMS320F2800155-Q1 , TMS320F2800156-Q1 , TMS320F2800157 , TMS320F2800157-Q1 , TMS320F280021 , TMS320F280021-Q1 , TMS320F280023 , TMS320F280023-Q1 , TMS320F280023C , TMS320F280025 , TMS320F280025-Q1 , TMS320F280025C , TMS320F280025C-Q1 , TMS320F280033 , TMS320F280034 , TMS320F280034-Q1 , TMS320F280036-Q1 , TMS320F280036C-Q1 , TMS320F280037 , TMS320F280037-Q1 , TMS320F280037C , TMS320F280037C-Q1 , TMS320F280038-Q1 , TMS320F280038C-Q1 , TMS320F280039 , TMS320F280039-Q1 , TMS320F280039C , TMS320F280039C-Q1 , TMS320F280040-Q1 , TMS320F280040C-Q1 , TMS320F280041 , TMS320F280041-Q1 , TMS320F280041C , TMS320F280041C-Q1 , TMS320F280045 , TMS320F280048-Q1 , TMS320F280048C-Q1 , TMS320F280049 , TMS320F280049-Q1 , TMS320F280049C , TMS320F280049C-Q1 , TMS320F28075 , TMS320F28075-Q1 , TMS320F28076 , TMS320F28374D , TMS320F28374S , TMS320F28375D , TMS320F28375S , TMS320F28375S-Q1 , TMS320F28376D , TMS320F28376S , TMS320F28377D , TMS320F28377D-EP , TMS320F28377D-Q1 , TMS320F28377S , TMS320F28377S-Q1 , TMS320F28378D , TMS320F28378S , TMS320F28379D , TMS320F28379D-Q1 , TMS320F28379S

 

  1.   Trademarks
  2. 1Introduction
  3. 2Hardware Connection
  4. 3C2000 I2C Source Code
    1. 3.1 I2CHandle Description
    2. 3.2 I2CBusScan
    3. 3.3 I2C_MasterTransmitter
    4. 3.4 I2C_MasterReceiver
  5. 4EEPROM Byte Write
  6. 5EEPROM Byte Read
  7. 6EEPROM Word Write
  8. 7EEPROM Word Read
  9. 8EEPROM Paged Write
  10. 9EEPROM Paged Read

2 Hardware Connection

The below schematics shows how an EEPROM device can be connected to C2000 I2C module. EEPROM used in this application report is AT24C256. In AT24C256, user configurable pins (A0, A1) called device address pins can be used to address as many as four AT24C256 devices on the same I2C bus. These A0, A1 pins are pulled down which makes the slave address of EEPROM = 0x50. The write protect input pin needs to be connected to ground to allow EEPROM write operation.

For information regarding selection of pull resistor, see the I2C Bus Pull-Up Resistor Calculation.

GUID-410C5758-FF05-41BB-96E7-242E3DF9A307-low.png