Xarion Comoretto

where to start with In Application programming

Discussion created by Xarion Comoretto on Mar 21, 2012
Latest reply on Apr 3, 2012 by Tony Papadimitriou

Hey guys


I've recenlty had to move to a S08QE device beacuse the 8051 core I am using is becomming obsoleted. I would like update firmware over the air, I have 64KB of eeprom that i can use to temporarily store my new code.


How would you recommend I reflash my device? Store and run my reflashing proceedure in RAM then read the S19 (stored in the eeprom) and write it to flash?


I have seen quite a few references to the doonstack procedure but I am a bit lost as I am not really familiar with it or the freescale  ASM code.


How does the doonstack work? How can I use it to reflash my device? Would I have to code my reflash procedure have to check at the checksum etc in the S19 before writing or does the doonstack include this perhaps?


Thanks :smileyhappy: