Fujitsu MB2147-01, Application Note

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Monitoring and Manipulating
FR Family MB2198-01 Emulating and Debugging Installation Guide, Doc. No. 002-05223 Rev. *A 19
5.4.1 Example of Manipulating Memory
Use the example program from above compile it and enter debugging mode.
Set a break point at address
H’000C01A4
:
Enter execution mode and the CPU stops at
H’000C01A4
. Now select View

Watch and add variable
a
. Then
select View

Memory and enter start address
H’3C7FA
.
You will find the C variable
a
at the address
H’0003C7FA
. Assume you want to change its value. Therefore
double click on
H’3C7FA
. The following dialog window will pop up:
Now type 40 in the Data text field and watch the variable window. You will see that the value of
a
will change
immediately to
H’40200000
.
5.4.2 Realtime Memory
There is another way to view memory. Choose View

Realtime memory . A Setup window will occur (if not, click
the right button of the new opened window and select
Setup Area…
.). In the Setup debug environment window
select Realtime memory area
. Enter “
0
” for the
Start address for Area number: 1 . Click on Set and then OK . The
new Realtime memory window looks much like the Memory window, but is limited to 255 Byte (per area), but
highlights any memory changes in red.
To see the memory in “real time” during execution, choose
Setup

Debug environment

Debug environment .
Then select the Monitoring
folder and enter “
D’100
at Sampling Time: (using USB connection to the PC) and
click on check box Realtime memory window :
=> ( ) 000C01A0: 1781 ST RP,@-R15
=> ( ) 000C01A2: 0F01 ENTER #004
17: {
18: for (i=0; i<a; i++);
=> ( X ) 000C01A4: C000 LDI:8 #00,R0
=> ( ) 000C01A6: 9B3CC000 LDI:20 #3C000,R12