Dear All,
I am trying to add a boot loader for my LPC2478 based application. I want to conditionally Branch to my main code at 0x1000 from the boot loader code. When i tried from Startup.s as below
IMPORT __main ; LDR R0, =__main LDR R0, =0x1000 BX R0 it worked fine. Now the problem is that I cannot do the same from main().
This does not compile int main(){
__asm{ LDR R0, =0x1000 B R0 }
}
generating following errors...
boot.c(8): error: #29: expected an expression boot.c(8): error: #1097: Expected a [ or ] boot.c(9): error: #114: label "R0" was referenced but not defined
PLS HELP...THANKS
You are fundamentally wrong. 1. Don't kill people - your code will one day of you go on like this. 2. use a SWI function for the jump - you must be in any privileged mode to configure stack pointers during startup. Branching alone will not work. 3. Don't use inline assembly - only embedded assembly. See your assembler manual. That is the reason for the compilation error by the way.