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Microprocessor Firmware Update Inventory Model

01 December 1981

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Microprocessor Firmware Update Inventory Model By S. M. BRECHER (Manuscript received June 10, 1981) Microprocessor-based systems are used in many applications of modern telecommunications. The controlling program of most microprocessor systems is stored in firmware which is usually coded into erasable programmable read only memory chips (EPROM). AS new services are implemented, there is a continuing need to update the firmware, a potentially expensive process. In this paper, a method is presented for determining the resources necessary for updating EPROM firmware from a centralized location by using a rotating inventory scheme.