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110 octets ajoutés ,  9 octobre 2018 à 20:00
Ligne 101 : Ligne 101 :     
== Entrées de contrôle ==
 
== Entrées de contrôle ==
Each pulse to the STEP input corresponds to one microstep of the stepper motor in the direction selected by the DIR pin. These inputs are both pulled low by default through internal 500 kΩ pull-down resistors. If you just want rotation in a single direction, you can leave DIR disconnected.
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Chaque impulsion sur l'entrée STEP correspond à un microstep (micro-pas) d'un moteur pas-à-pas dans la direction sélectionnée par la broche DIR. Ces entrées utilisent des résistance pull-down interne de 500 kΩ pour maintenir le signal au niveau bas. Si vous avez uniquement besoin de faire tourner le moteur dans un seul sens alors vous pouvez laisser la broche DIR déconnectée.
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The chip has two different inputs for controlling its power states: {{overline|SLEEP}} and {{overline|ENBL}}. For details about these power states, see the datasheet. Please note that the driver pulls both of these pins low through internal 500 kΩ pull-down resistors. The default {{overline|SLEEP}} state prevents the driver from operating; this pin must be high to enable the driver (it can be connected directly to a logic “high” voltage between 2.5 V and 5 V, or it can be dynamically controlled by connecting it to a digital output of an MCU). The default state of the {{overline|ENBL}} pin is to enable the driver, so this pin can be left disconnected.
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La puce propose deux entrée différentes pour contrôler l'état d'alimentation: {{overline|SLEEP}} et {{overline|ENBL}}. For details about these power states, see the datasheet. Please note that the driver pulls both of these pins low through internal 500 kΩ pull-down resistors. The default {{overline|SLEEP}} state prevents the driver from operating; this pin must be high to enable the driver (it can be connected directly to a logic “high” voltage between 2.5 V and 5 V, or it can be dynamically controlled by connecting it to a digital output of an MCU). The default state of the {{overline|ENBL}} pin is to enable the driver, so this pin can be left disconnected.
    
{{POLImage|MP6500-02.png|250px|Schematic of nSLEEP and nFAULT pins on MP6500 carrier.}}
 
{{POLImage|MP6500-02.png|250px|Schematic of nSLEEP and nFAULT pins on MP6500 carrier.}}
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