Lpc2000

Yes, you need ULINK to run the Keil debugger, but you can get some faith in
the system and trouble shoot with the following

 

-          Use IAP to download the Keil elf to the mcb2100.  

-          If successful, you know that the elf is good.

-          Use Arm tools and multi-ice to download the same elf.

-          If successful, then there was probably something bad with the elf
you built

-          If it still fails, then there is something wrong with the
multi-ice environment

 

 

 

  _____  

From: tah2k [mailto:tah2k@...] 
Sent: Tuesday, December 21, 2004 7:41 AM
To: lpc2000@yahoogroups.com
Subject: [lpc2000] Re: Data Aborts

 


I understand where you are coming from, but I am trying to prevent 
buying more tools. From what I understand, the keil tools require 
their own emulator to actually run the debugger, and I already have 
3 multi-ice. 

I am missing something, this should be trivial. If I reload the 
blinky application, it works just fine.

I have also got a keil mcb2100 board and I have the same issue.


--- In lpc2000@yahoogroups.com, "Dan Beadle" <dan.beadle@i...> wrote:
> I suggest you download the Keil tools.  
> 
>  
> 
> Download their demos.  That will verify that everything is working 
properly.
> 
> 
>  
> 
> From there, you could try the ARM tools with the Keil elf output.  
At that
> point, you know that the board and the code are good.  So you 
would only be
> working one problem.
> 
>  
> 
>  
> 
>  
> 
>   _____  
> 
> From: tah2k [mailto:tah2k@y...] 
> Sent: Monday, December 20, 2004 4:15 PM
> To: lpc2000@yahoogroups.com
> Subject: [lpc2000] Data Aborts
> 
>  
> 
> 
> 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
> 
> 
> 
> 
> 
> 
> 
> 
> 
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