Lpc2000

How are you debugging from Flash using AxD? 
Have you implemented the Flash programming algo for the LPC in AxD?

I was under the impression that the Flash programming interface has 
to be implemented for the LPC by customers.

amit

--- In lpc2000@yahoogroups.com, "tah2k" <tah2k@y...> wrote:
> 
> Still not up and running with my Arm tools and the Keil MCB2130.
> 
> I setup the Arm AXD debugger to run the following script on startup:
> 
> loadsymbols C:\Projects\Sampler_2138\AppFlash\Output\AppFlash.axf
> setpc 0x0
> sreg cpsr 0xd3
> spp vector_catch 0
> spp semihosting_enabled 0
> 
> It basically loads the debug symbols for the image in the 2138 
> flash, initializes the CPSR, sets the pc to 0, and disables 
> breakpoints at the Arm exceptions.
> 
> The debugger loads the source file correctly and the PC is set at 
> 0x0 which is a branch to my startup handler at 0x20. However, if I 
> run, or singlestep, or do anything, I get a "Data abort".
> 
> Also, if I try and display memory starting at 0x0, the debugger 
> gives an error "Memory access failed" and only gives the contents 
of 
> addresses 0-20, the rest 0's.
> 
> I thought perhaps the data abort had something to do with the 
> remapping done by the Philips boot loader, but I checked the MEMMAP 
> flag and it is set to 1, so I am running the flash at 0. 
> 
> I'm new to the part and evaluating it against the AT91 pocessors, 
> and I am fresh out of ideas. The memory bus is internal so its not 
> like I can hook up my logic analyzer too get some ideas.
> 
> Is it possible the Philips memory accelerator is partly to blame? 
> Tehre must be otehrs using Arm tools with this part so I am hoping 
> it is something trivial.
> 
> Any ideas are appreciated.
> Tim