I2C


read i2c addresses

U-Boot

U-Boot > i2c dev < busnumber >
U-Boot > i2c probe

example

Linux

root@MBaXXX:~ i2cdetect <busnumber>

example

read eeprom

on

  • TQMa7x
  • TQMa335x
U-Boot > i2c dev 0
U-Boot > i2c md 0x50 0x00.2 0x100
  • TQMa28
TQMa28 U-Boot > i2c dev 1
TQMa28 U-Boot > i2c md 0x50 0x00.2 0x100
  • TQMa6ULx
U-Boot > i2c dev 3
U-Boot > i2c md 0x50 0x00.2 0x100

You can see in offset 20 the mac-address, in offset 30 the serial number and in offset 40 the TQ short.

Disclaimer
TQ-Systems GmbH provides the Board Support Packages (BSP) free of charge. The software included in the shipment has been configured individually for the starter kits. The software is only intended to evaluate the module. The use of the Board Support Packages (BSP) is only allowed within the scope of functionality described by TQ-Systems GmbH. TQ-Systems GmbH does not accept any liability for all further changes of the Board Support Package and for any damage resulting from its use.