Agilent Technologies 8935 Series, Manual

Page: 328 / 343

Appendix A 327
Error Messages
Flash ROM Firmware Upgrade Error Messages
Flash ROM Firmware Upgrade Error Messages
Test Set’s 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 A2A31 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 in alphabetical order in the following paragraphs.
Supplemental fault information is included.
Memory Card Checksum Error
The memory card may be at fault. The card reader on the 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 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 A2A31 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 A2A31 Controller
assembly.