78K0/Lx3 - See it!
User’s Manual
U18759EE2V0UM00
69
Communication with the
78K0/Lx3 - See it!
board is disabled.
Cause:
The driver may not be installed correctly.
Action:
Check if "USB Serial Port" and "USB High Speed Serial Converter" are installed correctly by
referring to
CHAPTER 7.5 USB Driver Installation
.
Cause:
The COM port selected via the “Port list box” within device setup menu of WriteEZ3 may not be
set correctly.
Action:
Set the port checked using Device Manager.
Cause:
The
78K0/Lx3 - See it!
board is operating in normal mode.
Action:
Set the board to the WriteEZ3 FLASH programming mode.
Cause:
The PRM file selected in [Device Setup] may be incorrect.
Action:
Use the corresponding PRM file that matches the target device. For information about the PRM
file, refer to
CHAPTER 8 WRITEEZ3 FLASH programming software.
Cause:
The setting of "Supply oscillator" in [Device Setup] may be incorrect.
Action:
Make a correct setting according to the specifications of the target device.
