Lpc2000

Hi,

have a look to the Map-file.
Check if the bss area is within the range of the RAM memory area 
(below the stack area).

regards
xjag


--- In lpc2000@yahoogroups.com, "arkeryd" <arkeryd@y...> wrote:
> Hi,
> 
> After adding several new source files to my application for LPC2129,
> it hangs when jumping from startup.s to main(). 
> 
> The first thing that came to my mind was that perhaps too much ram
> memory was now used.
> However, after checking by running startup.s trough the debugger, it
> doesn't seem like that.
> I use the default startup.s for LPC2129.
> 
> The last address used by the .data- and .bss-sections
> (variables/arrays) in my application is 0x40001748.
> 
> And this should not collide with stack either, as I use the default
> stack address and sizes:
> Interrupt Mode size: 0x80
> User/system mode size: 0x400
> And just 4 bytes size in other modes.
> Top of stack address: 0x40004000.
> 
> The weird thing is even though no memory collision should occur, the
> application starts if I comment out the "Clear .bss section code" in
> startup.s, so it must somehow be some collision, but I don't
> understand why.
> 
> # Clear .bss section (Zero init)
>                 MOV     R0, #0
>                 LDR     R1, =__bss_start__
>                 LDR     R2, =__bss_end__
> LoopZI:         CMP     R1, R2
>                 STRLO   R0, [R1], #4
>                 BLO     LoopZI
> 
> Any input to clear my confusion would be much appreciated! :)