livebox:hah_i2c

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livebox:hah_i2c [2011/07/11 13:12] – external edit 127.0.0.1livebox:hah_i2c [2011/12/31 19:27] – [Firmware debugging] brett
Line 130: Line 130:
 i2c B4210 - PPE chip at 0x42 write byte 0x10 i2c B4210 - PPE chip at 0x42 write byte 0x10
 </code> </code>
 +
 +The firmware command "''i2c scan''" is VERY useful when making sure that the hardware is correctly setup and configured.  Issuing this command will perform a scan of ALL I2C addresses from 0x00-0xFF to see what responds.  You can only run this with direct microcom connection to the AVR running in DEBUG mode.  See also [[hah_microcontroller]]
 +
 ===== xAP control ===== ===== xAP control =====
 {{ :livebox:i2c-pin-endpoints.png|}} {{ :livebox:i2c-pin-endpoints.png|}}
  • livebox/hah_i2c.txt
  • Last modified: 2011/12/31 19:31
  • by brett