DV164121 Microchip Technology, DV164121 Datasheet - Page 50

• Manufacturer Part Number: DV164121
• Description: KIT PICKIT 2 DEBUG EXPRESS
• Manufacturer: Microchip Technology
• Series: PICkit™ 2r
• Type: Microcontrollerr

Specifications of DV164121

• Contents: Board, PICkit™ 2 Programmer, Cable, CD
• Processor To Be Evaluated: PIC family
• Data Bus Width: 8 bit, 16 bit, 32 bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: PIC Micro® MCU
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

DS51553E-page 46
FIGURE 4-21:
9. Select ADCON0 from the first drop-down list and then click Add SFR to add
FIGURE 4-22:
10. Select Debugger>Run to the run the program. Again, the program will stop after
11. Examine the values of the ADCON0 and ADCON1 registers in the Watch
Note:
ADCON0 to the Watch window. Repeat this to add ADCON1 and ADRESH to the
Watch window. The selected SFRs should be visible in the Watch window as
shown in Figure 4-22.
it reaches the breakpoint.
window. The ADCON0 value is ‘0x40’ (b’01000000’). This corresponds to the
hex value designated in the program. However, this is not correct. A review of the
“PIC16F882/883/884/886/887 Data Sheet” (DS41291), Analog-to-Digital (A/D)
Converter Module section, indicates that the last bit should be a ‘1’
(b’01000001’) to turn on the A/D module. To fix this bug, change:
movlw 0x40
to
movlw 0x41, as shown in Figure 4-23.
It is not recommended to use the View>File Registers and View>Special
Function Registers windows when debugging with PICkit 2 Debug Express.
When these windows are open, the entire contents must be written then
read back from the target device on every operation. This may slow down
debugging operations significantly. Instead, only add the SFR and File
Register variables of interest to a Watch window as described in this
tutorial.
NEW WATCH WINDOW
ADD SFRs TO WATCH
© 2008 Microchip Technology Inc.