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tutorials:cb1:development:access_at24c_eeprom_via_i2c
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Table of Contents
Access AT24C EEPROM via I2C
Abstract
In this tutorial, an approach for accessing AT24C EEPROM via I2C bus on Cubieboard1 or Cubieboard2 is presented.
Configuration
In order to access peripheral I2C devices, Cubieboard's script.bin should enable I2C interfaces. Edit script.fex, make certain that the following lines exist there.
[twi1_para] twi1_used = 1 twi1_scl = port:PB18<2><default><default><default> twi1_sda = port:PB19<2><default><default><default>
This will configure Cubieboard's IO port PB18 & PB19 to TWI1-SCK & TWI1-SDA (I2C-1).
Connection
AT24C Access
Example Codes
tutorials/cb1/development/access_at24c_eeprom_via_i2c.1386033644.txt.gz · Last modified: 2013/12/23 14:50 (external edit)
