Debugging a Device

Use the following commands to debug a device.

• Reset – refer to the device data sheet for Reset information. If a Reset is needed for debugging purposes: first, halt the target; then, enter the command:

  Reset

• Set Breakpoint – there are two ways to set a breakpoint for debugging:

  Set a breakpoint by source-line-number using the command:

  Break filename: linenumber

  For example: Break main.c:53

  Set a breakpoint at an absolute address using command:

  Break *address

  For example: Break *0x108

• Set Watchpoint – to set a watchpoint for debugging:

  Set a watchpoint by specifying an address and the type of watch using the command:

  Watch address breakontype

  For example: Watch 0xa0007ff0 R

  or

  Watch address breakontype[:value] [passcount]

  For example: Watch 0xa0007ff0 R:0xf 1

• Delete Breakpoint – to delete a breakpoint, use the command:

  Delete [breakpoint number]

  If no argument is specified in this command, it will delete all breakpoints.

• Run Program – the Run command can be used to run the program until it reaches a breakpoint.
• Step Through – to step through the program, use the Step command or Next command.
• See Variable Value – a Print [variable] command can be used to see the value of a variable or an SFR.
• Exit – use the Quit command to exit the MDB.