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PICkit™ SERIAL ANALYZER

USER’S GUIDE

Chapter 11. Troubleshooting

11.1 INTRODUCTION

This chapter describes questions and answers to common problems associated with

using the PICkit™ Serial Analyzer and how to resolve them.

11.2 FREQUENTLY ASKED QUESTIONS

PICkit™ Serial Analyzer could not be found

Question

I am receiving the error message, “PICkit™ Serial Analyzer could not be found” in the

Transactions window, but the PICkit™ Serial Analyzer is plugged in. What is wrong?

Answer

Open the Windows

operating system Device Manger by clicking on Control Panel >

System, selecting the Hardware tab and clicking on Device Manger button. Check if

there is an error displayed under Human Interface Devices as shown in Figure 11-1.

If an error is displayed, try unplugging and the re-plugging the USB cable until the error

goes away (this may take 3 or 4 tries).

If the error persists, try another USB port or hub. Try plugging the PICkit™ Serial

Analyzer into another computer to verify that the USB port is working.

FIGURE 11-1: WINDOWS

DEVICE MANAGER

Current Limit Exceeded

Question

I received the error message “USB Hub Current Limit Exceeded” from the Windows

operating system. What is wrong?

Answer

The USB port current limit is set to 100 mA. If the target device plus PICkit™ Serial

Analyzer exceeds this current limit, the USB port will shut down. Check for shorts. The

target device can be externally powered if more power is needed.

Microsoft

Windows

98 SE

Question

After plugging the PICkit™ Serial Analyzer into the USB port, Windows

98 SE asks

for a driver. Where is the driver?

Answer

PICkit™ Serial Analyzer uses the Human Interface Device (HID) driver included with

the Windows

Operating System. When Windows

98 SE prompts for a driver, select

“Search for the best driver for your device.” Then select the check box next to “Microsoft

Windows Update” and click Next. Windows will automatically install the appropriate

driver. Do not use Microchip’s MPLAB

ICD 2 USB driver.