
A-78 IntelliTouch/SecureTouch Guide
Diagnostic Codes
AccuTouch controller power-on diagnostic codes are typically displayed when
an Elo driver is loaded, or through the Touchscreen Control Panel. The codes
will be a pair of bytes displayed in hex. Only the first byte is significant with
AccuTouch controllers.
The following table lists the bit positions defined for the byte. A 1 bit indicates a
failure. Diagnostic codes are computed by summing the value for each bit
position using hexadecimal arithmetic.
Bit Value (hex) Description
7 80 Touch microprocessor test incomplete
6 40 Reserved
5 20 Touch microprocessor test failed— touchscreen may not
be connected
4 10 Nonvolitle RAM checksum test failure
3 08 RAM read/write test failure
2 04 ROM checksum test failure
1 02 Microprocessor logic/register test failure
0 01 Firmware/hardware compatibility test failure
Komentáře k této Příručce