Glossary - Revision history

Markus Friedrich at 08:44, 28 March 2014

2014-03-28T08:44:12Z

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	[[fr:Glossaire]]		[[fr:Glossaire]]
	[[category:About TARGET 3001!]]		[[category:About TARGET 3001!]]
			[[category:homepage]]

Markus Friedrich at 14:05, 26 March 2013

2013-03-26T14:05:50Z

← Older revision		Revision as of 16:05, 26 March 2013
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	'''[[Rests of components]]:''' Rests of components are of interest for the layouter later in the design process. If you e.g. import a 7400 from a [[libraries\|library]] you intend to place a NAND-Gate to your circuit. The according VCC/GND power-connections are fixed later, when the general function of the circuit is designed. Those supply symbols are combined to a separate symbol which are inserted separately by "Import rests of components" in Menu "Components" to your circuit. They need to be connected manually in any case. If not you will receive error messages like "Power without supply" when using the function "Check project".<br>		'''[[Rests of components]]:''' Rests of components are of interest for the layouter later in the design process. If you e.g. import a 7400 from a [[libraries\|library]] you intend to place a NAND-Gate to your circuit. The according VCC/GND power-connections are fixed later, when the general function of the circuit is designed. Those supply symbols are combined to a separate symbol which are inserted separately by "Import rests of components" in Menu "Components" to your circuit. They need to be connected manually in any case. If not you will receive error messages like "Power without supply" when using the function "Check project".<br>

	'''[[Symbol]]:''' A [[symbol]] is a [[schematic]] representation of a [[component]] or parts of it, for example a gate. It is made of a handle (small cross), its drawing (with a symbol name or a component name and a component value) and the according pins~~. It belongs to a [[component]]~~.<br>		'''[[Symbol]]:''' A [[symbol]] is a [[schematic]] representation of a [[component]] or parts of it, for example a gate. It is made of a handle (small cross), its drawing (with a symbol name or a component name and a component value) and the according pins.<br>

	'''[[Reference Symbol]]:''' Reference symbols are used for connections which shall not or can not be displayed as green wires (e.g. in a [[schematic]] having more than one page). For example +,-, GND or any in or outgoing [[signal\|signals]]. By identity of name the connection is made.<br>		'''[[Reference Symbol]]:''' Reference symbols are used for connections which shall not or can not be displayed as green wires (e.g. in a [[schematic]] having more than one page). For example +,-, GND or any in or outgoing [[signal\|signals]]. By identity of name the connection is made.<br>

Markus Friedrich at 14:05, 26 March 2013

2013-03-26T14:05:13Z

← Older revision		Revision as of 16:05, 26 March 2013
Line 11:		Line 11:
	'''[[Rests of components]]:''' Rests of components are of interest for the layouter later in the design process. If you e.g. import a 7400 from a [[libraries\|library]] you intend to place a NAND-Gate to your circuit. The according VCC/GND power-connections are fixed later, when the general function of the circuit is designed. Those supply symbols are combined to a separate symbol which are inserted separately by "Import rests of components" in Menu "Components" to your circuit. They need to be connected manually in any case. If not you will receive error messages like "Power without supply" when using the function "Check project".<br>		'''[[Rests of components]]:''' Rests of components are of interest for the layouter later in the design process. If you e.g. import a 7400 from a [[libraries\|library]] you intend to place a NAND-Gate to your circuit. The according VCC/GND power-connections are fixed later, when the general function of the circuit is designed. Those supply symbols are combined to a separate symbol which are inserted separately by "Import rests of components" in Menu "Components" to your circuit. They need to be connected manually in any case. If not you will receive error messages like "Power without supply" when using the function "Check project".<br>

	'''[[Symbol]]:''' A [[symbol]] is a [[schematic]] representation of a [[component]] or parts of it, for example a gate. It is made of a handle (small cross), its drawing (with a symbol name or a component name and a component value) and the according pins. It belongs to a [[~~compjavascript:insertTags('[',']','http://www.example.com link title');~~		'''[[Symbol]]:''' A [[symbol]] is a [[schematic]] representation of a [[component]] or parts of it, for example a gate. It is made of a handle (small cross), its drawing (with a symbol name or a component name and a component value) and the according pins. It belongs to a [[component]].<br>
	~~External link (remember http:// prefix)onent~~]].<br>

	'''[[Reference Symbol]]:''' Reference symbols are used for connections which shall not or can not be displayed as green wires (e.g. in a [[schematic]] having more than one page). For example +,-, GND or any in or outgoing [[signal\|signals]]. By identity of name the connection is made.<br>		'''[[Reference Symbol]]:''' Reference symbols are used for connections which shall not or can not be displayed as green wires (e.g. in a [[schematic]] having more than one page). For example +,-, GND or any in or outgoing [[signal\|signals]]. By identity of name the connection is made.<br>

Fabienne at 08:07, 14 September 2007

2007-09-14T08:07:55Z

New page

This glossary gives a review on some main terms and items used in TARGET 3001!

'''[[Circuit]] or [[Project]]:''' A generic term for the [[schematic]] and [[PCB]]. Both will be saved in one file (*.T3001). It is possible to have a couple of [[Project|projects]] open in [[TARGET 3001!]] with one or more open [[Window|windows]] of each [[project]]. It is possible to have a [[window]] of the schematic- and a window of the PCB- file open on the screen. For edition of both, simply toggle between the schematic- and the PCB- window with the '''[F3]''' key. 

'''[[Schematic]]:''' A diagram that shows the electrical perspectives between the connections of [[Component|components]] through inter connections done with signal wires and [[bus|buses]]. 

'''[[PCB]]:''' Printed circuit board, presentation of the electrical connections of the [[Pin|pins]] of [[component]] packages with solder pads and signal tracks. A [[PCB]] can be made out of one or more of the following: ground planes, deletion layers, solder resist layers, insertion legend print layer, solder paste layer, gold coating layer, adhesive coating layer and dimensioning layer, outline layer, routing data layer and a drill hole layer. Up to 100 [[layer|layers]] are possible. All layers are viewed from the top (top view). Layers with a lower layer number can be found below layers with a higher layer number. Therefore the solder side of the [[PCB]] will be viewed from the top, imagine the [[PCB]] is made of glass. An insertion legend print on this [[layer]] must be visible mirrored on the computer screen. 

'''[[Component]]:''' For a [[schematic]], a [[component]] is made of one or more [[symbol|symbols]]. To simulate a circuit, only the components simulation model is of interest. A [[PCB]] designer is interested in the package of a [[component]]. A CD4000 standard CMOS [[component]] contains 2 x NOR-symbols, 1 x NOT-Symbol and 1 x POWER-Supply Symbol as well as a GND symbol. To convert a [[schematic]] into a [[PCB]], each [[symbol]] has to be assigned to an available package. (DIL14 or SMD14). While importing from a [[libraries|library]], each [[component]] will be automatically assigned with an identification number. A[[ component]] can have a name (IC17;R8) and a value (CD4000;4K7). 

'''[[Rests of components]]:''' Rests of components are of interest for the layouter later in the design process. If you e.g. import a 7400 from a [[libraries|library]] you intend to place a NAND-Gate to your circuit. The according VCC/GND power-connections are fixed later, when the general function of the circuit is designed. Those supply symbols are combined to a separate symbol which are inserted separately by "Import rests of components" in Menu "Components" to your circuit. They need to be connected manually in any case. If not you will receive error messages like "Power without supply" when using the function "Check project". 

'''[[Symbol]]:''' A [[symbol]] is a [[schematic]] representation of a [[component]] or parts of it, for example a gate. It is made of a handle (small cross), its drawing (with a symbol name or a component name and a component value) and the according pins. It belongs to a [[compjavascript:insertTags('[',']','http://www.example.com link title');
External link (remember http:// prefix)onent]]. 

'''[[Reference Symbol]]:''' Reference symbols are used for connections which shall not or can not be displayed as green wires (e.g. in a [[schematic]] having more than one page). For example +,-, GND or any in or outgoing [[signal|signals]]. By identity of name the connection is made. 

'''[[Package]]:''' A [[package]] is a physical representation of a [[component]], necessary for the printed circuit board design. It is made of a handle (small cross), its [[drawing]] (outline, maybe with a component name and a component value) and the according pads as footprints (DIL- or SMD-type). It is part of a [[component]]. 

'''[[Pin]]:''' A [[pin]] in [[TARGET 3001!]] is a [[schematic]] representation of a connection of a electronic [[component]]. It has always a [[pin]] number and sometimes a [[pin]] name. A [[pin]] belongs to a [[symbol]] and therefore to the component. If this [[pin]] is connected in the [[schematic]], it is also part of a [[signal]]. Pins not connected, are marked with a small cross at its end. The cross disappears as soon as this [[pin]] gets connected. 

'''(Solder) [[Pad]]:''' A solder [[pad]] is a physical representation of a connection on the printed circuit board. Such a pad has always a pin number. A [[pad]] belongs to a and therefore to the [[component]]. It is part of a [[signal]], if the corresponding pin is connected in the [[schematic]]. The association between a [[pin]] in [[schematic]] and its [[pad]] on [[PCB]] is exclusively dependent on an identical pin number. A [[pad]] with a drill hole appears usually on all copper layers (special layer 100 = all copper layers, or beginning with [[layer]] 101 = pad stack). The drill hole diameter for SMD ( surface-mounted-devices) pads is zero and it has a normal copper [[layer]] (e.g. 16=copper top). 

'''[[Signal]]:''' A [[signal]] in [[TARGET 3001!]] is an assigned characteristic. For a [[schematic]], it can contain pins, signal traces, signal tori, signal curves, and junctions (knots) whereas it contains pads, tracks, tori and track curves, bridges, through-holes and [[via|vias]] on the [[PCB]]. To see if two pins or signals are connected, verify their affiliation to the same signal. 

'''[[Drawing]]/[[Design]]:''' A drawing can be made of the following graphical elements: [[line]], [[triangle]],[[ rectangle]], slice, [[torus]], curve, orientation mark and [[text]]. 

'''[[Junction / Node]] (Knot):''' In the [[schematic]], a junction is used to connect crossing [[signal]] traces or to show their connection. A junction is made of a slice which is bigger than the crossing signal tracks. 

'''Node:''' All [[signal|signals]] are assigned to nodes in the simulation program. Because the simulation program sometimes adds internal nodes, their final amount can be higher than the number of signals in the [[schematic]]. 

'''[[Bus]]:''' A [[bus]] in the [[schematic]] is a collection of signal names. All [[Signal|signals]] can be connected to a [[bus]]. It is possible to distinguish graphically between separate busses (databus, addressbus ...), but [[TARGET 3001!]] allows to get any [[signal]] out of any [[bus]] ( for example address line A7 from the databus). To make the signal name of the outgoing signal visible, please hover the mouse over the wire and press '''[n]'''. In the flashing dialog just enter OK. 

'''[[Via]]:''' A [[via]] is a plated through-hole of all copper layers of a printed circuit board (special layer = 100). For the production, it is important to have a sufficient residual ring around the plated through-hole. Please refer to "padstacks" too. 

'''[[Bridge]]:''' A [[bridge]] is a wire connection between two points on the [[PCB]]. The solder pads of the [[bridge]] are made of the current [[Via|vias]]. The [[drawing]] of the wire should be made on the position [[layer]]. 

'''[[Element]]:''' An [[element]] is a database assignment for all [[element|elements]] of a [[drawing]]. 

'''[[Page]]:''' [[TARGET 3001!]] is capable to handle up to 100 schematic pages. Connections between different pages can be made by using reference [[symbol|symbols]]. The gnd-symbol is a well known reference symbol. These connections can also be reached through bus-islands on different pages. Basically, the same signal name = the same signal = connected. 

'''[[Layer]]:'''[[TARGET 3001!]] is capable to handle up to 100 printed circuit board layers. (0..99). Each [[layer]] can be switched visible and invisible. Each [[laye]]r can be assigned to a special function, for example: copper layer, position layer, solder-resist layer... All layers (even copper bottom) will be displayed as a view from top. Imagine the [[PCB]] was made of glass. Special layers are layer 100 for all copper layers and layers 101...250 for padstacks. Please refer to "padstacks" too. 

'''[[Simulation]]:''' The [[schematic]] can be tested and evaluated by the use of the mixed-mode [[simulator]]. The [[simulator]] in [[TARGET 3001!]] is PSPice-and Spice 3f5 compatible. The amount of [[signal|signals]] handled by the [[simulator]] is different according to the version purchased. 

'''[[EMC Check|EMC Analysis]]:''' An integrated tool to check the routed [[PCB]] regarding all design rules recommended for electromagnetic compatibility (EMC). The inductive, capacitive and galvanic coupling of the tracks as well as the radiation value of individual [[signal|signals]] are displayed. 

'''[[Padstack]]:''' A [[padstack]] is a plated through-hole of several (not all) copper layers. [[Padstack|Padstacks]] are distinguishable between types that will be drilled only from one side (blind via) and types that connect only the inner [[Layer|layers]] of a [[PCB]]. These types are invisible from the outside (buried via). 

'''[[Drillhole]]:''' You will not find a simple[[ element]] that represents a simple drillhole as a mounting hole in [[TARGET 3001!]]. Place a [[via]] and set its pad size dimensions smaller than the drillhole size. Also, you should delete its [[signal]]. 

'''[[Mode]]:''' Depending on the [[project]] status, [[TARGET 3001!]] can be operating in different modes. The [[status line]] (bottom of screen) shows the current mode. The [[status line]] shows also the dependencies of several keys with their individual meaning in the according mode. 

'''[[Options]]:''' With the [[options]] feature in the according mode, it is possible to define the settings for [[element|elements]] to be placed in the future. (key '''[o]''' for options). For example: While you work in the mode "Draw Tracks" it is possible to set the properties for [[track|tracks]] to be placed next (layer, width...). 

'''[[Edit]]:''' The currently selected [[element|elements]] can be changed by pressing the '''[e]''' key or by selecting the menu Edit / Change command. This means it concerns [[element|elements]] which were created in the past. 

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[[category:About TARGET 3001!]]