HP 16600A Series User Manual page 255

Chapter 12: Troubleshooting the Analysis Probe
Inverse Assembler Problems
Inverse Assembler Problems
This section lists problems that you might encounter while using the
inverse assembler.
When you obtain incorrect inverse assembly results, it may be unclear
whether the problem is in the analysis probe or in your target system. If
you follow the suggestions in this section to ensure that you are using
the analysis probe and inverse assembler correctly, you can proceed
with confidence in debugging your target system.
No inverse assembly or incorrect inverse
assembly
This problem may be due to incorrect synchronization, modified
configuration, incorrect connections, or a hardware problem in the
target system. A locked status line can cause incorrect or incomplete
inverse assembly.
❏ Ensure that each logic analyzer pod is connected to the correct analysis
probe connector.
There is not always a one-to-one correspondence between analyzer
pod numbers and analysis probe cable numbers. Analysis Probes must
supply address (ADDR), data (DATA), and status (STAT) information
to the analyzer in a predefined order. The cable connections for each
analysis probe are often altered to support that need. Thus, one
analysis probe might require that you connect cable 2 to analyzer pod
2, while another will require you to connect cable 5 to analyzer pod 2.
See Chapter 3 for connection information.
❏ Check the activity indicators for status lines locked in a high or low state.
❏ Verify that the STAT, DATA, and ADDR format labels have not been
modified from their default values.
These labels must remain as they are configured by the configuration
254 Solutions for CPU32