I am using P89V51RD2 microcontroller. I divided my Flash of ( 64K) into two parts bootloader(15 K) and Application ( 49K) .
I am using IAP functionality to upgrad firmware.
My problem is I need to know wether my bootloader started due to power reset or called from application firmware.
I want a variable which I can access from bootloader as well as from application. I dont know how to define such a variable.
Please help me on this.


Thanks & Regards
Yogesh Ahire
Aftek Limited