Eval » Historie » Revision 7
Revision 6 (Maximilian Seesslen, 09.09.2024 14:36) → Revision 7/9 (Maximilian Seesslen, 09.09.2024 14:36)
h1. Eval
Biwak supports bootloader via linkerscript.
There needs to be some communication between BL and APP;
APP --> \-> BL: start app or bl?
BL --> \-> APP: Version of BL; does this combination work- Should be checked when flashing.
Lower bottom of stack can not be used because this can change with newer firmware release.
* Communication via option bytes: This way RAM has not to be preserved; incomplete updates are handled. Some cost.
* ISR-Table is relocated by Kokon
* When BL was used, Application does not need to config the clock any more. Can save a lot of flash
* Kokon should send article number and Bootloaderfirmware, so flash tool can verify if this is the correct image
* App clears option bytes again
Problem is: Bootloader and application probably have different configurations. An seperate build has to be triggered. -> Arena supports subsets now.
Biwak supports bootloader via linkerscript.
There needs to be some communication between BL and APP;
APP --> \-> BL: start app or bl?
BL --> \-> APP: Version of BL; does this combination work- Should be checked when flashing.
Lower bottom of stack can not be used because this can change with newer firmware release.
* Communication via option bytes: This way RAM has not to be preserved; incomplete updates are handled. Some cost.
* ISR-Table is relocated by Kokon
* When BL was used, Application does not need to config the clock any more. Can save a lot of flash
* Kokon should send article number and Bootloaderfirmware, so flash tool can verify if this is the correct image
* App clears option bytes again
Problem is: Bootloader and application probably have different configurations. An seperate build has to be triggered. -> Arena supports subsets now.