Warning !
To avoid catastrophic damage to PC, programmer or target system:
• Ensure that both your target system and PC are connected to a common earth point.
• Make sure that all interconnections are made before applying power to PC and target
system.
• If you are using a laptop or PC which is not connected to mains earth, it is
recommended that you make a hard-wired connection from the COM port D-connector
shell and the target system to a common earth point.
• Avoid plugging and unplugging ISP connector while either the PC or target system is
powered up.
• Please ensure that any
devices connected to the
user target system are also
properly grounded to the
same common earth point.
• Please see Diagram opposite
Any damage caused to the programmer through inadequate earthing is not
covered under warranty
User
Target
System
PC
GEMINI-1
External
Devices
1
2
3
1 Earth connection to PC
2 Target system earth
3 Earth from external device
Common earthing point
User Guide V0.90
7
Hardware Installation Instructions
Overview
The GEMINI-1 programmer connects to any spare PC
serial
(COM) port. If you only have
one serial port and this is in use for e.g. a modem, it may be possible to add another serial
port to your machine by inserting a new I/O card.
For further hardware installation help, please refer to the:
Installation Troubleshooting Guide
