Chapter 9 Troubleshooting - Renesas RL78/I1A User Manual

RL78/I1A

Chapter 9 Troubleshooting

R01UH0363EJ0100 Rev. 1.00
March 23, 2012

In driver installation, recognition based on Plug and Play is disabled.
Cause:
The USB connector may not be inserted normally into the USB port of the
personal computer.
Action:
Check that the USB connector is inserted fully into the USB port of the personal
computer.
Alternatively, disconnect the USB connector, and then insert the USB connector
again after a while.

The driver file cannot be found at a specific location
Cause:
The WriteEZ5 programming software may not be installed correctly.
Action:
Install the WriteEZ5 software again by referring to Chapter 6 Software
Installation.

In checking by Device Manager, "USB Serial Port" or "USB High Speed
Serial Converter" is not displayed. Alternatively, the "!" or "" is
prefixed
Cause:
The USB connector may not be inserted normally into the USB port of the
personal computer.
Action:
Check that the USB connector is inserted fully into the USB port of the personal
computer.
Alternatively, disconnect the USB connector from the USB port, then insert the
USB connector again after a while.
Cause:
The driver may not be installed correctly.
Action:
<1> When this product is connected to the personal computer, right-click the
driver marked with "!" or "".
Click Erase when displayed.
<2> On Device Manager, execute [Hardware Modification Scan].
<3> Install the driver again with Plug and Play.
Cause:
The device may not be recognized (in the case of connection with the USB hub).
Chapter 9 Troubleshooting
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