Fatal Errors - Fluke 8508A Service Manual

8508A
Service Manual

Fatal Errors

Fatal errors are reported only via the front panel display. These messages are all coded as
9000 series faults. Each of the fatal errors that might occur are identified in the following
paragraphs.
When a fatal error occurs the processor halts the operation of the multimeter. Cycling the
power off and on may clear the message. Howerver, fatal errors are generally caused by
hardware or software faults which require repair by at a Fluke Service Center.
9000 System Kernel Fault
This error is generated for system queue errors, stack overflows etc.
See Table 4-4 for descriptions of 9000 system kernel fault errors.
id
9001 Run Time System Error
This error is detected and generated by the Pascal run time system support e.g. variable
out of range.
9002 Unexpected Exception
See Table 4-5 for descriptions of unexpected exception errors.
id
02
03
04
05
08
09
10
24
9003 PROM Sumcheck Failure
9004 RAM Check Failure
4-16
Table 4-4. 9000 System Kernel Fault Errors
00
user stack overwritten (addr = user stack pointer address)
01
activity at head of queue not current (addr = address of queue)
02
current activity not at head of queue (addr = address of queue)
Table 4-5. Unexpected Exception Errors
bus error (usually due to addressing non-existant memory or IO)
address error (due to attempting a word access to an odd address)
illegal instruction
zero divide
privilege violation
trace (trace facility is not used)
unimplemented instructions
11
unimplemented instructions
spurious interrupt (most likely cause is noise)
Addr id
Fault
Addr id
Exception