DV164121 Microchip Technology, DV164121 Datasheet - Page 54

• 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

PICkit™ 2 User’s Guide
Current Limit Exceeded
Question
Why am I receiving the error message “USB Hub Current Limit Exceeded” from the
®
®
Microsoft
Windows
program?
Answer
Verify that the application circuit is not drawing more than 25 mA from the PICkit 2.
Microsoft Windows Driver
Question
After plugging the PICkit 2 unit into the USB port, Windows 98 SE asks for a driver.
Where is the driver?
Answer
The PICkit 2 uses the drivers included with Windows 98 SE. When Windows 98 SE
prompts for a driver, select “Search for the best driver for your device.” Then select the
checkbox next to “Microsoft Windows Update” and click Next. Windows OS will
automatically install the appropriate driver. Do not use Microchip’s MPLAB ICD 2 USB
device driver.
Verify and Read Return All Zeros
Question
When Verify or Read are clicked, the Program Memory window comes up with all
zeros. What is wrong?
Answer
The device may be code-protected. Ensure code protection has not been selected in
the Configuration Word.
Microsoft Windows 95/98/NT
Question
Windows 95/98/NT
Can I run on
?
Answer
No. These operating systems either do not support USB or have drivers that are not
compatible.
V
/V
Errors
DD
PP
Question
Why do I keep getting a “V
Error” or “V
Error”?
DD
PP
Answer
This error indicates that the PICkit 2 is not able to drive V
or V
to the intended volt-
DD
PP
age. Check the circuit board for shorts, for large current draw and verify that the target
device is connected to the PICkit 2 in accordance with Chapter 3. “Using In-Circuit
Serial Programming™ (ICSP™)”. Make sure that V
capacitance is not reducing
DD
rise time longer than 500 μs.
the V
DD
© 2008 Microchip Technology Inc.
DS51553E-page 50