Please follow steps to flash ATmega with current CPM ATmega Firmware.
Steps require Main Vehicle PCB to be connected to vehicle to provide power |
For questions, please contact:
Start Atmel Studio 7.0 and load current vehicle firmware solution "vehicle_atmega2560_firmware.atsln"
Make sure vehicle is powered off before connecting programmer |
With vehicle power OFF, connect ICE programmer AVR Port to JTAG header.
Make sure to check pinout of Programmer, Vehicle and Connector Cable:
Turn ON vehicle and connect to ATmega Chip using Device Programming (Apply and Read).
The following fuses deviate from the default and therefore need to be set correctly:
Fuse | Correct Setting |
---|---|
HIGH.SPIEN | Unchecked |
HIGH.EESAVE | Optional i.e. checked or unchecked |
LOW.CKDIV8 | Unchecked |
LOW.SUT_CKSEL | Ext. Crystal Osc. 8.0- MHz; Start-up time: 16 CK + 65ms |
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.
|
Flash chip using Start without Debugging
Turn OFF vehicle after flashing is complete BEFORE disconnecting programmer |
By setting a jumper, a test mode is activated. This allows testing the inputs and outputs without the MLC.