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Turn ON vehicle and connect to ATmega Chip using Device Programming (Apply and Read).

Warning

Check Fuses

See Low Level Controller for more information on fuses and first time use

Here the fuses that The following fuses deviate from the default that should and therefore need to be set correctly:

FuseCorrect Setting
HIGH.SPIENUnchecked
HIGH.EESAVEOptional i.e. checked or unchecked
LOW.CKDIV8

Unchecked

LOW.SUT_CKSELExt. Crystal Osc. 8.0- MHz; Start-up time: 16 CK + 65ms

Warning

If vehicle is behaving irregularly i.e. servo steering is acting erratic, LEDs timing appears off, this is most likely due to an issue with the clock.

  1. Check the above settings again. 
  2. Check external crystal oscillater on bottom side of board using oscilloscope (should be 16MHz)

4. Flash ATmega

Flash chip using Start without Debugging

Warning

Turn OFF vehicle after flashing is complete BEFORE disconnecting programmer

5. Tests

By setting a jumper, a test mode is activated. This allows testing the inputs and outputs without the MLC.

Multimedia
namellc_test.mp4