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glossary:glossary_i [2014/11/11 13:29]
127.0.0.1 external edit
glossary:glossary_i [2019/03/02 10:31] (current)
WortingUK [ICSP]
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 [[http://​www.kpsec.freeuk.com/​components/​ic.htm|http://​www.kpsec.freeuk.com/​components/​ic.htm]] [[http://​www.kpsec.freeuk.com/​components/​ic.htm|http://​www.kpsec.freeuk.com/​components/​ic.htm]]
  
 +
 +===== ICSP =====
 +
 +==In Circuit Serial Programming.==
 +A means whereby microprocessors (PICs etc), may be programmed while mounted in the circuit they are intended to control. There are NO standard physical designs used for ICSP. Many MERG modules are provided with a common design connector to facilitate this, and a lead to connect the popular PICKIT programmer to the CBUS connector is [[:​helpsystem:​pickit2cbus|shown here.]]\\
  
 ===== Incandescent lamps ===== ===== Incandescent lamps =====
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 ===== Inductor ===== ===== Inductor =====
  
-An inductor is a coil of wire which may have a core of air, iron or ferrite (a brittle material made from(iron). Its electrical property is called inductance and the unit for this is the henry, symbol H. 1H is very large so mH and uH are used, 1000uH and 1000mH=1H. Iron and ferrite cores increase the induction. \\ +An inductor is a coil of wire which may have a core of air, iron or ferrite (a brittle material made from iron). Its electrical property is called inductance and the unit for this is the Henry, symbol H. 1H is very large so mH and uH are used, 1000uH=1mH and 1000mH=1H. Iron and ferrite cores increase the inductance. \\ 
-Inductors are mainly used to tune circuits and to block high frequency AC signals (they re sometimes called chokes) \\ +Inductors are mainly used to tune circuits and to block high-frequency AC signals (they're sometimes called chokes) \\ 
-They pass DC easily, but block AC signals ​,This is the opposite to capacitor.+They pass DC easily, but block AC signals; this is the opposite ​action ​to capacitor.
  \\ {{:​glossary:​inductor.jpg}}  \\ {{:​glossary:​inductor.jpg}}
  \\ [[http://​www.kpsec.freeuk.com/​components/​other.htm#​inductor|http://​www.kpsec.freeuk.com/​components/​other.htm#​inductor]]  \\ [[http://​www.kpsec.freeuk.com/​components/​other.htm#​inductor|http://​www.kpsec.freeuk.com/​components/​other.htm#​inductor]]
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 ===== Infra red emitter ===== ===== Infra red emitter =====
  
- +These are LEDs which emit outside of the visible light range. 
-These IR emitters are high intensity Gallium Arsenide infrared emitting diodes ​mounted in clear plastic with smoke color lens. They are made with Gallium Aluminum Arsenide window layer on Gallium Arsenide Infrared emitting diodes. Viewing angle is 20 degrees+IR emitters are generally ​mounted in plastic with clear or smoke color lens.
  \\ {{:​glossary:​ir-emit.jpg}}  \\ {{:​glossary:​ir-emit.jpg}}
  
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 Name for means of linking the operation of points and signals such that signals can only show a proceed aspect when points are correctly set, and that points cannot be moved unless the signals over them are showing stop aspects. Interlocking can be mechanical, electrical using relays or carried out by computers. Name for means of linking the operation of points and signals such that signals can only show a proceed aspect when points are correctly set, and that points cannot be moved unless the signals over them are showing stop aspects. Interlocking can be mechanical, electrical using relays or carried out by computers.
  
 +=====ISR===== 
 +Interrupt Service Routine. A subroutine called automatically by processor hardware when conditions within a peripheral cause an interrupt flag to be set and the matching interrupt enable flag is also set. Often there are priority settings also, a High priority interrupt cannot itself be interrupted whereas a Low priority interrupt can be interrupted by a High level one.
glossary/glossary_i.1415712585.txt.gz · Last modified: 2015/07/21 12:18 (external edit)