2.3.3 Debugging 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.