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Troubleshooting
Errors and Troubleshooting
The following is a list of frequently asked questions for Silicon
Explorer II. For more information, visit the Actel online support
website at http://www.actel.com/guru. This chapter is divided into
four sections:
• Errors and troubleshooting
• General information
• Software setup
• Hardware setup
Q: I've connected Silicon Explorer II and the window display reads
N/C. Why?
A: Look on the top of the Silicon Explorer II for the flashing yellow
"heartbeat." If it isn't flashing make sure you have properly
connected an adequate power supply.
Q: It's flashing but still N/C. Why?
A: There are a number of things that prevent you from establishing
communication. The following are the most common:
• Wrong COM port. Try all four COM ports, even if you are sure
that your mouse is on COM 1.
• No power to Silicon Explorer II (see above).
• Desktop Systems External connector not connected to the COM
port internally.
• Laptop systems external COM connector disabled (IR Port
Override?). Use your PC's CMOS setup program to enable the
COM port.
• COM port IRQ reassigned for DOS program, control panel not
updated.
• Multiple mouse drivers in system.ini.
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