Vehicle computer diagnostic interface apparatus

Details Vehicle computer diagnostic interface apparatus Vehicle computer diagnostic interface apparatus

1985-09-10

1989-08-01

Harkcom, Gary V.

Boots, shoes, and leggings

3644241, G06F 1300, G06F 1342

Patent

active

048538507

ABSTRACT:
The communications adapter provides an interface between automotive vehicle on-board computer and a test computer running diagnostic software. Using a dual-ported random access memory, the circuit receives serial data from the on-board computer, preprocesses that data into a standardized data format, and places the standardized data directly into the memory space of the test computer. The dual-ported memory may be placed at a user selected address within the memory space of the test computer, so that it will not conflict with the diagnostic program running on the test computer. The invention is readily upgradable by uploading preprocessor software into random access memory, thereby making the invention upwardly compatible as new makes and models are introduced.

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"Motorola Semiconductors", Motorola Semiconductor Products, Inc., 1981.

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