Microchip Technology DM300018 User Manual
Using the dsPIC30F4012
© 2005 Microchip Technology Inc.
DS51558A-page 79
12.6
IN-CIRCUIT DEBUGGING
The sample application program is intended to illustrate how the processor and I/O
modules handle the functionality provided on the dsPICDEM 2 Development Board.
The MPLAB ICD 2 In-Circuit Debugger was used to program the sample application
into the dsPIC30F device. You can also use the MPLAB ICD 2 In-Circuit Debugger to
examine this baseline code to determine specific applicability to your application.
modules handle the functionality provided on the dsPICDEM 2 Development Board.
The MPLAB ICD 2 In-Circuit Debugger was used to program the sample application
into the dsPIC30F device. You can also use the MPLAB ICD 2 In-Circuit Debugger to
examine this baseline code to determine specific applicability to your application.
The examination process requires that three changes be made to the sample
application setup.
application setup.
• The dsPIC30F4012 device must be reprogrammed to recognize the MPLAB ICD
2 as a debugger rather than as a programmer.
• MPLAB IDE must be reconfigured to specify the pins on the dsPIC30F4012
device to be used for debugging.
• The dsPICDEM 2 board must be physically reconfigured to ensure that it connects
the MPLAB ICD 2 debugger to the pins on the dsPIC30F4012 device that were
specified in MPLAB IDE.
specified in MPLAB IDE.
The primary programming and debugging functions (PGC/EMUC, PGD/EMUD) on the
dsPIC30F device are multiplexed with other peripheral modules on the device used by
the sample application. Thus it is necessary to use an alternate pair of debugging pins
(EMUC1/EMUD1, EMUC2/EMUD2 or EMUC3/EMUD3) to examine the baseline code
provided in the sample application.
dsPIC30F device are multiplexed with other peripheral modules on the device used by
the sample application. Thus it is necessary to use an alternate pair of debugging pins
(EMUC1/EMUD1, EMUC2/EMUD2 or EMUC3/EMUD3) to examine the baseline code
provided in the sample application.
12.6.1
Setting Up MPLAB ICD 2 for Debugging
To change MPLAB ICD 2 from a programmer to a debugger:
1.
From the
Debugger menu, click Select Tool>MPLAB ICD 2 to designate the
MPLAB ICD 2 as the debug tool in MPLAB IDE.
2.
From the
Configure menu, select Configuration Bits... The Configuration Bits
window displays the current configuration settings for the device, as shown in
Figure 12-3.
Figure 12-3.
3.
Change the “Comm Channel Select” parameter to Use EMUC2 and EMUD2.
4.
On the dsPICDEM 2 board, change the setting on switch S3 to turn on EMUC2
and EMUD2.
and EMUD2.
5.
Remove any jumpers on headers H6 and H7.
6.
Reprogram the dsPIC30F device (
Debugger>Program menu).
7.
On the dsPICDEM 2 board, turn off M ALL on switch S2.
8.
Reset the program and run it. From the
Debugger menu, select Reset>Processor
Reset. Then select Debugger>Run.