Boot Loader + Interrupt handling

[see2kor]

Hi Everyone,

I am trying to implement a bootloader which can switch between two different user codes on every reset. The user codes are small in size, hence user_code_1 and user_code_2 can be stored in the flash.

Now since both the user_codes can have their own interrupts, i.e there can be #INT_XXX twice ( both in user_code_1 and user_code_2). This generates an error...

Is there any method to solve this.?

Note:
a) My boot loader does not use interrupts .
b) Currently I have used goto, and written my own ISR handlers for each user_code
c) user_code_1 :0x800 - 0x23FF; user_code_2 :0x2400 - 0x3FFF

Thanks in advance !

Sandeep

[asmallri]

Implement a single general purpose handler which checks to see which application is in control and then passes control to the appropriate function.
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Regards, Andrew

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