How to debug without a file?

[andywell]

Software: codewarrior IDE; debugger: USBTAP; target board PPC: 8250; there is no elf files and source code files, How to run the operating system on the target board for real-time debugging? Thanks

[andywell]

Thank you, I have to try.

[andywell]

I just want to know whether we can use CW-IDE and USBTAP to debug a running program in the target board,without a file(like elf)

[ronco]

You can debug a program running on your MPC8250 board without a pre-built .elf file but you will need a CodeWarrior project -- all CodeWarrior debugger operations require an open project.  Try this: select File->New->EPPC New Project Wizard and walk through the menus to create an MPC8250 project.  Doesn't matter what the code is, you're only creating a place-holder project.  When your project is created select, from the IDE's top tool-bar, Debug->Connect.  This will start a debug session to your board, resetting it and initializing it with the standard MPC8250 eval board configuration.  The debugger should come up pointing at the RESET vector.  Assuming you see valid code, click "Run".  Now you have run-control of your board running its own code out of flash.

If you want to take over a board that's already running then use the Debug->Attach to Process option.  For that you will need to build the code in your place-holder project but you can ignore it and just use the Disassembly view in the debugger.  I hope this helps.

Ron

[tkvenki]

Depends if your Target is ROM/RAM.

1. If the target is ROM you will need to create a s-Record file and then program it into Flash.

Then you can debug the program.

2. If the target is RAM(SRAM/SDRAM) , then there is no need to create a S-record file.  The IDE will manage to place the debug information in the start-up location.

Message Edited by tkvenki on 2009-10-15 05:33 AM

[tkvenki]

Hi andywell,

Your question does not seem to be very clear.....

But few points  may help....

1. If you go through the debugger panel,

    you can find an option to specify the S-record file, you want to Flash.

2. If you need RTOS information in debugger you need a plugin of that RTOS....Like..if you are using

    Threadx(the rtos which I use..)......contact threadx guys and ask them, if they have a plugin for

    CW?

    You can install the plugin to get rtos info....

3. In CW-IDE, you have a Flash programmer, which you culd use to write the code/boot.....

What is the RTOS you are using?

Hope this helps...

Regards,

Venki