HP 8924C Assembly page 624

Appendix A, Error Messages
Flash ROM Firmware Upgrade Error Messages
Flash ROM Firmware Upgrade Error Messages
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Test Set firmware is stored in flash ROMs. With flash ROMs, the firmware can be quickly
upgraded with new firmware from a memory card. It is not necessary to open the Test Set
and replace individual ICs. Should problems arise in the process of uploading the new
firmware, the user is notified by messages on the display which state the situation and
suggest any actions to be taken.
The firmware upgrade process begins when the user inserts the firmware upgrade memory
card into the front-panel memory card socket and turns the Test Set on. The Test Set notes
the presence of a valid firmware upgrade card and proceeds to upload the firmware on the
memory card into the flash ROMs on the A16 Host Controller assembly. Any failures
that occur during the upload process are immediately reported and the upload is aborted.
The error messages that may be displayed during a firmware upgrade are listed below in
alphabetical order. Supplemental fault information is included.
Memory Card Checksum Error
The memory card may be at fault. The card reader on the A17 Memory board could also
be faulty.
Memory Card Read Error
This error will always appear if the user removes the memory card during the upload
process. The memory card itself could be faulty or, less likely, the card reader on the A17
Memory board.
Memory Erase Error
This fault is most likely caused by either the flash ROMs themselves or the controller
circuits. In either case replace the A16 Host Controller assembly.
Memory Write Error
This fault is most likely caused by either the flash ROMs themselves or the controller
circuits. In either case replace the A16 Host Controller assembly.
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