At one point, we did design a JP1.x cable that was supposed to work with all flash remotes, but then we found an incompatibility problem when trying to use the same interface for JP1.3 as for JP1.1. Flash remotes are sometimes referred to collectively as JP1.x remotes. UEIC marked the 6-pin connector in these remotes JP1.1, JP1.2, or JP1.3 depending on the type of microcomputer used, so we called them that too. These omit the EEPROM in favor of using part of the flash RAM to store programmable data. Remotes currently manufactured use newer technology flash microcomputers. We have always called these JP1 remotes because that was the original designation of the 6-pin connector marked on the PCB. Prior to about 2004, all remotes used a separate memory chip (EEPROM) for programmable data. Remotes manufactured by UEIC can be classified according to the type of microcomputer used and the type of memory used to store user configurable data. An unfortunate byproduct has been the accumulation of a bewildering array of interface designs, with support for some earlier designs dwindling as newer and better designs were developed. Since its origin, the JP1 Forum has continually updated its software and hardware (interface cable) designs to stay abreast of the various changes in design of remotes by their manufacturer, UEIC, and to accommodate the evolution in PC design that has resulted in steady disappearance of legacy ports, first parallel ports, and more recently serial ports.
Posted: Tue 9:03 am Post subject: Choose the right JP1/JP1.x interface cable - Read this first Profile Log in to check your private messages Log inįile Section File Search Lookup Tool WikiĬhoose the right JP1/JP1.x interface cable - Read this first
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