KOMMUNIKATIONSNETZ MIT DOPPELMODUS- DATENTRANSFERSYSTEM

A link apparatus in a node of a multinode, collision-resolution, multiplexing communications system connected between a microcontroller (MCU) that receives measurand data from an input device such as a sensor and an integrated driver and receiver (IDR) for assuming some of the functions of the MCU i...

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Bibliographische Detailangaben
Hauptverfasser:	RANDEL, ROBERT, J, STARK, JOHN, HORMEL, RONALD, F, HALTER, RICHARD, A
Format:	Patent
Sprache:	ger
Schlagworte:	BLASTING COMBUSTION ENGINES COMBUSTION ENGINES IN GENERAL ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INTERNAL-COMBUSTION PISTON ENGINES LIGHTING MECHANICAL ENGINEERING TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION WEAPONS
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Beschreibung
Zusammenfassung:	A link apparatus in a node of a multinode, collision-resolution, multiplexing communications system connected between a microcontroller (MCU) that receives measurand data from an input device such as a sensor and an integrated driver and receiver (IDR) for assuming some of the functions of the MCU in delivering and receiving messages to and from a single-wire bus communications network. The MCU contains firmware for converting the measurand data into data bytes, the link apparatus and the MCU contain circuits for effecting a SPI transfer and the link apparatus contains additional circuits for converting each bit of the message bytes into variable pulse width modulated (VPWM) bits. The VPWM bits get converted into J1850 symbols before being placed on a single- wire communications bus. Circuits are provided in the link apparatus for checking arbitration of the protocol and data symbols communicated over the bus.