Fujitsu MB2147-01, Application Note

Page: 105 / 121

Breakpoints and Program Stepping
FR Family MB2198-01 Emulating and Debugging Installation Guide, Doc. No. 002-05223 Rev. *A 13
The MCU then executes the program just until your breakpoint is reached. The source window will then look like
this:
The yellow highlighted line is the actual line where the CPU is halted.
Now we want to step an instruction further. Therefore click on ,or select Debug

Run

Step in , or press
“F6”. The source window will change to:
The CPU has performed the load instruction and is waiting at the call instruction to the subroutine at
H’000C01E6
.
Do one instruction step further (press “F6”). Then the highlighted line will jump to the wait function:
25:
26: while (1)
27: {
28: wait(20000);
=> ( X ) 000C01E2: 9B044E20 LDI:20 #04E20,R4 .
=> ( ) 000C01E6: D7DB CALL \wait
29:
30: PDR1++;
=> ( ) 000C01E8: 0A01 DMOVB @001,R13
=> ( ) 000C01EA: 8BD0 MOV R13,R0
=> ( ) 000C01EC: A410 ADD #1,R0
=> ( ) 000C01EE: 8B0D MOV R0,R13
=> ( ) 000C01F0: 1A01 DMOVB R13,@001
=> ( ) 000C01F2: E0F7 BRA 000C01E2
25:
26: while (1)
27: {
28: wait(20000);
=> ( X ) 000C01E2: 9B044E20 LDI:20 #04E20,R4
=> ( ) 000C01E6: D7DB CALL \wait .
29:
30: PDR1++;
=> ( ) 000C01E8: 0A01 DMOVB @001,R13
=> ( ) 000C01EA: 8BD0 MOV R13,R0
=> ( ) 000C01EC: A410 ADD #1,R0
=> ( ) 000C01EE: 8B0D MOV R0,R13
=> ( ) 000C01F0: 1A01 DMOVB R13,@001
=> ( ) 000C01F2: E0F7 BRA 000C01E2