请教S700高速计数 点击：625 | 回复：5
发表于：2006-02-10 11:27:00
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High-speed counters count high-speed events that cannot be controlled at CPU scan rates, and can be configured for up to twelve different modes of operation. The maximum counting frequency of a high-speed counter is dependent upon your CPU type.
Each counter has dedicated inputs for clocks, direction control, reset, and start, where these functions are supported. For the two-phase counters, both clocks may run at their maximum rates. In quadrature modes, an option is provided to select one times (1x) or four times (4x) the maximum counting rates. All counters run at maximum rates without interfering with one another.
Each counter has dedicated inputs for clocks, direction control, reset, and start, where these functions are supported. For the two-phase counters, both clocks may run at their maximum rates. In quadrature modes, an option is provided to select one times (1x) or four times (4x) the maximum counting rates. All counters run at maximum rates without interfering with one another.
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