3M SC400 Serial Resistive, Справочное руководство

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14 SC400 Controller Reference Guide
3M Touch Systems Proprietary Information
Status Light (LED) Diagnostics
3M Touch Systems controllers are highly reliable units; however, there may be occasions
when the controller does not perform exactly as you expected. The SC400 controller
provides diagnostic feedback with a light emitting diode (LED) on the component side of
the board that indicates the status of the touch screen unit. During normal operation,
when you touch the touch screen the LED becomes bright as long as the controller
detects a touch. A flashing (or blinking) LED during power-up indicates the controller’s
power-on self-test failed. Refer to Table 2 for a description of each error code.
Table 2 LED Diagnostic Codes for SC400 Controllers
Flashes Self Test
Condition
Self Test
Bit Description What to do…
1 Reserved. 0 Reserved
2 ROM Error 1 Firmware EPROM checksum
verification error No recovery. Replace the controller.
3 Reserved. 2 Reserved
4 Block 1
checksum Error
3 Operating parameters invalid
(using defaults). Cycle power off and on.
5 Hardware error 4 Power up touch screen
connector voltages out of range Check connections to touch screen
6 Reserved. 5 Reserved
7 Reserved. 6 Reserved
What's Next?
Installing and Using MicroTouch™ Software
The MicroTouch™ Software Suite includes a driver and tools that enable your touch
screen to work with your computer. 3M Touch Systems has touch screen drivers for
many operating systems, including Microsoft® Windows® XP, 2000, 9X, Windows Me,
and Windows NT 4.0. Be sure to install the touch screen software for your operating
system.
TouchWare 5.64 SR4 supports the SCxxx family of controllers. Please check the
corporate website for the latest releases of software and dcoumentation.
For more information on connecting your cables and installing and using the touch
screen, refer to the
TouchWare™ for Windows User’s Guide (19-224) . All 3M Touch
Systems documentation is available from the corporate website at www.3Mtouch.com or
from the Touch Solutions CD (P/N 19-640).