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WBE2-I-1-WIRE 1-Wire Extension Module/en: различия между версиями
WBE2-I-1-WIRE 1-Wire Extension Module/en (просмотреть исходный код)
Версия 11:01, 27 июня 2019
, 4 года назадНовая страница: «Work features of the applied chip DS2484 and protection circuits are the causes. The protection circuit limits the signal fronts when the DS2484 active pullup is…»
(Новая страница: «====Reasons and detailed description====») |
(Новая страница: «Work features of the applied chip DS2484 and protection circuits are the causes. The protection circuit limits the signal fronts when the DS2484 active pullup is…») |
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====Reasons and detailed description==== | ====Reasons and detailed description==== | ||
Work features of the applied chip DS2484 and protection circuits are the causes. The protection circuit limits the signal fronts when the DS2484 active pullup is active. The DS2484 bus master mistakenly enables an active pullup on a long line at the time of data transfer (active low) by the sensors. | |||
The chip also has a small sampling time, which makes its operation more sensitive to the steepness of the fronts, and therefore to the length of the line. | |||
====Пути обхода==== | ====Пути обхода==== | ||