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Debugger General Information
Break Sequence
1.Removes any breakpoints in your code and keeps the breakpoint table intact.
2.Takes a snapshot of the machine state if the function was entered using SYSCALL. This machine state is then accessible to you for diagnostic purposes.
SYSFAIL* Assertion/Negation
Upon a reset/powerup condition the debugger asserts the VMEbus SYSFAIL* line (refer to the VMEbus specification). SYSFAIL* stays asserted if any of the following has occurred:
❏Confidence test failure
❏NVRAM checksum error
❏NVRAM low battery condition
❏Local memory configuration status
❏Self test (if System Mode) has completed with error
❏MPU clock speed calculation failure
After debugger initialization is done and none of the above situations have occurred, the SYSFAIL* line is negated. This indicates to the user or VMEbus masters the state of the debugger. In a
MPU Clock Speed Calculation
The clock speed of the microprocessor is calculated and checked against a user definable parameter contained in NVRAM (refer to the CNFG command in Appendix A). If the check fails, a warning message is displayed.