RE: problem in running 'Hello_fl' example by codewarrior 8.7

Keep the entry point at __start.  When the debugger enters there, select
'mixed' mode so you can confirm if the source assembly is actually
stored.  In addition, under target settings in the debugger portion,
select the checkbox for 'verify memory writes'.  If the verify fails or
you don't see your disassembled code in the debugger, then the code is
not loading correctly - this is likely caused by having the linker
assemble to the wrong address.
 
On the subject of wrong address, please check you have memory at
0x10000000.  This must be external RAM, correct?  If so, please ensure
the config file is correctly setting up a chip select for this memory.
 
Maybe take a step back and try something easier i.e. under 'debug' tab,
select connect to test if the wiggler is correctly communicating with
the device.  If it appears to connect, open a memory window at internal
RAM and test you can read an write data.  I don't know exactly what the
connect does, but if it runs the config file, you should also be able to
read/write the external RAM at 0x10000000.  If it doesn't execute the
config file, then view the registers and edit the BRx/ORx to enable the
chip select x until you get your memory setup correctly.
 
I am not familiatr with the board or project you are running - if its
external flash, you have to ensure your flash programmer is correctly
setup which is an additional step to aim for once you verify you can
connect.
 
- Allan

________________________________

From: MPC500@... [mailto:MPC500@...] On Behalf
Of F KH
Sent: Friday, January 02, 2009 11:07 PM
To: MPC500@...
Subject: [MPC500] problem in running 'Hello_fl' example by codewarrior
8.7



Hi,
I'm trying to run Hello_Fl(latest version) example on a PHYCORE MPC555
with
CW8.7, but after making the project when I try to debug,an error
occurred(Could
not set PC on entry point).
I change the entry point of project in EPPC Linker(__start) to main but
it
doesn't work too.examine different states of debugger setting so,but
each time
the error occur ed.
I set my printer port on normal mode and use MSIWiggler(Parallel port)
and
everything in setting page is default or set by example project.
Some times it goes through and make an powerpc exception error:
'powerpc exception
 machine check exception 0X200'
I think the addresses of the project aren't correct.
{FPU Buffer address   :0x10000000
 Code address           :0x10002000
  Stack Address        :0x100FFFF0   }
Thanks in advance for all your replies.
   
F.Kh



 


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