Lpc2000

Thank you for your help, I hadn't included                 
                LDR     R0, =PINSEL2
                LDR     R1, =PINSEL2_Val
                STR     R1, [R0]
in my startup file so PINSEL2 register was never activated.

Everything is working now thanks for your help.

Wun

--- In lpc2000@yahoogroups.com, "didier_edna" <didier_edna@y...> 
wrote:
> 
> Hello,
> 
> I was having similar problems, trying to run code from the external
> RAM. We are using the IAR environment, with a Macraigor clone
> (chamelion from amontec). But the solution should be simular for 
you.
> 
> The solution I found was setting the PINSEL2 register to the 
correct
> value for activating the address and data bus lines. The value I 
used
> for the phytec board is 0x 0FE1 69EC (at address 0x E002 C014).
> 
> Then you have to set the BCFG1 register to 0x 2000 0400 (at 
address 0x
> FFE0 0004), this to get the correct access to the RAM (zero 
waitstates
> , ...).
> 
> In IAR you can do this in a macro file, so every time you upload 
the
> executable, the registers are set to these values. Otherwise there 
is
> no way of getting the executable in external RAM. I suppose there 
is a
> simular way of working for KEIL. If not, you can use the 30 day 
trial
> version of IAR (www.iar.com)
> 
> The same has to be done for the external periferals (eg when using 
the
> on board ethernet controller), but for the corresponding CS 
register.
> 
> Hope this helps you,
> 
> Didier
> 
> 
> --- In lpc2000@yahoogroups.com, "wunny83" <wunny83@y...> wrote:
> > 
> > Hi im new at this but im having trouble storing data to the 
adress 
> > 0x81000000, while my program will run fine if internal memory is 
> > used.
> > 
> > Im using keil and uvision ulink with the gcc compiler.
> > 
> > I have set up the text start 0x80000000 and data start 
0x81000000 in 
> > the linker while my top stack is 0x81010000 while I have tried 
many 
> > others because i dont know the exact value of the top stack for 
> > external memory; my linker script file is also se up properly.
> > I have also tried different memmap settings 0x02 and 0x03.
> > 
> > When debugging using ulink jtag, the variable that are 
initailized 
> > do not get values and eventually the pc will go to 0x00-0x14 
range.
> > 
> > Everything works fine when using internal mem with data start 
> > 0x40000000 and top stack 0x40004000
> > 
> > Thanks in advance
> > 
> > Wun