Hello world, I am using P89LV51RD2 micro-controller and using u-vision V2.40a! I want to remotely update user application on the micro-controller.
For doing it,first I need to download user-application image into the external flash. Once the user application is downloaded, I want the bootloader to write the downloaded image into internal flash of the micro-controller.
On power-reset, the bootloader has to check whether the user-application has to be upgraded or not. If the user-application has to be upgraded, then the bootloader has to write downloaded user application image into the internal flash.
Where should I add the bootloader? Can I modify the STARTUP.A51 file to add the bootloader routine just before when the instruction "LJMP ?C_START" is executed? After bootloder executes,How can make sure that interrupt vector table gets redirected to a given location in user application,Can I get help regarding this?