Matrix EB002 Скачать руководство пользователя страница 7

7

Sharing a port

There are times when you need to split a 

port into several sections, or where signals 

on a port need to be shared between two or 

more downstream E-blocks boards. In this 

case you need to use a splitter cable. As an 

example of this: supposing that you wanted 

to develop a system that used two external 

analogue sensors. The Sensor board only 

has the capability for one external analogue 

sensor, so you need to use a splitter 

cable and the patch system to make the 

appropriate connections.  The splitter cable 

allows you to connect one upstream port to 

two downstream ports using IDC (Insulation 

Displacement Connector) connectors and 

ribbon cable. Here the link blocks on both 

boards are in the ‘patch’ position. On the top 

board the Analogue sensor is routed to bit 

1, and on the bottom board the Analogue 

sensor is routed to bit 2. This technique 

allows you share ports between several 

devices - this is particularly convenient for 

communications systems where a device’s 

serial port has to be shared.

Protecting E-blocks circuitry

Where possible leaded components have 

been used for all devices on E-blocks boards 

that can be subjected to electrical damage. 

This means that in the case where devices on 

the E-blocks boards do become damaged, 

the task of replacing them is very simple. 

Some upstream boards (ARM processor 

boards and FPGA board) make use of surface 

mounted technology components which can 

not be socketed and which are not easy to 

solder. In these cases we have used smaller 

daughter boards so that if the key device 

is broken then you can simply order a new 

daughter board. 

To protect upstream components, all 

downstream E-blocks have been developed 

with protective resistors so that it is not 

possible to damage an upstream E-block by 

improperly declaring an input as an output, 

and having two output pins with different 

output levels clash.

However there are circumstances where it 

will still be possible to electrically damage 

your E-blocks: 

 

• 

When using screw terminal connectors    

  turn power off when routing power wires. 

 

When connecting two upstream boards  

  together with a gender changer or IDC  

  cable then you are connecting one output   

  to another. It is strongly recommended that   

  you use protective resistors for the lines you  

  need to connect to prevent chip damage. 

 

Although modern chips are less prone to  

  static damage these days, you are advised  

  to make sure you are earthed before   

  handling E-blocks circuit boards. If you have 

  not got access to an antistatic wristband 

  then quickly touching a radiator or other 

  earthed device will minimise the likelihood 

  of static damage. 

 

When using a patch or prototype board you  

  have the opportunity to connect external  

  components directly to the pin of the micro 

  controller or CPLD device. This also means  

  that you have the opportunity to short  

  circuit the device to 0V or +V. 

Содержание EB002

Страница 1: ...www matrixtsl com E blocks user guide...

Страница 2: ...nsiderations 5 Physical properties 8 Available E blocks and accessories 10 Copyright 2014 Matrix Technology Solutions Ltd PIC and PICmicro are trademarks of Arizona Microchip inc AVR is a trademark of...

Страница 3: ...internet boards etc Downstream boards are controlled by the upstream board but information can flow into them and from them Upstream and downstream boards can be snapped together to form a complete el...

Страница 4: ...troller is used to detect an incoming call and then channel local sound to the incoming caller who can hear what is going on in the room A keypad and LCD allow various set ups with dial out at predete...

Страница 5: ...th 3 3V All upstream E blocks have power outputs on screw terminal connectors Upstream E blocks are powered by applying a higher voltage via a power jack connector and use a regulator to generate powe...

Страница 6: ...Bit 1 RV1 Resistor Variable 1 Bit 2 Digital sensors out Bit 3 Analogue sensor Bit 4 Digital sensor in The bits 0 to 4 have been chosen because on many devices in the PICmicro range the A D inputs are...

Страница 7: ...rocessor boards and FPGA board make use of surface mounted technology components which can not be socketed and which are not easy to solder In these cases we have used smaller daughter boards so that...

Страница 8: ...kplane with M3 self locking nuts these will keep the bolts secured onto the circuit board and will act as spacers to keep the board clear of the backplane See Figure 6 When you want to move the system...

Страница 9: ...making them to some extent tamper proof The exception to this is the switch board which because the switches are relatively short requires the spacers to be replaced with M3 lock nuts before the cover...

Страница 10: ...pe board EB016 Patch board kit EB017 CAN bus board EB018 MIDI interface EB021 Motors board EB022 Internet board EB023 Bluetooth board EB024 LIN board EB027 Voice CODEC board EB032 PS2 VGA board EB033...

Страница 11: ...lowcourse CD ROM ELFCS2SI Assembly for PICmicros V4 EL629SI4 Programmable logic techniques ELPLDSI Flowcode V5 for PICmicro TEFLCSI5 Flowcode V5 for ARM TERMSI5 Flowcode V5 for AVR TEVRSI5 Flowcode V5...

Страница 12: ...12 Mati res Introduction aux E blocks 13 Exemples de syst mes E blocks 14 Consid rations lectriques 15 Caract ristiques physiques 18 Disponibilite d E blocks et d accessoires 20...

Страница 13: ...les cartes RS232 ou pour Internet etc Les cartes d aval sont command es par celles d amont mais l information peut circuler dans un sens comme dans l autre On peut accrocher les cartes d amont et d av...

Страница 14: ...nalise le son environnant vers l appelant qui peut ainsi couter ce qui se passe dans la pi ce Un cla vier et un cran LCD permettent de pr voir diff rents sc narios avec composition de num ros des mome...

Страница 15: ...principalement 3 3 V et 5 V En majorit les E blocks d aval sont compatibles avec le 3 3 V Sur tous les E blocks d amont les sorties d alimentation se font par bornes visser Les E blocks d amont sont...

Страница 16: ...gique Bit 4 entr e capteur num rique Les bits 0 4 ont t choisis parce que sur beaucoup de PICmicro les entr es A N se trouvent sur les bits 0 4 du port Si vous voulez utiliser un autre processeur dont...

Страница 17: ...s de composants mont s en surface que l on ne peut pas ins rer dans des supports et qui sont donc difficiles souder Dans ces cas l nous avons fait usage de petites cartes filles de sorte que si le com...

Страница 18: ...s Elles vont maintenir solidement les boulons sur la carte et servir de s parateur pour maintenir la carte distance du fond de panier Si vous devez transporter le syst me un ou deux boulons suppl ment...

Страница 19: ...veau du tableau de commutation parce que les interrupteurs sont rela tivement petits mais n cessitent des s parateurs qu il faut remplacer par des boulons de fixation M3 avant de pouvoir mettre le cou...

Страница 20: ...syst me d adaptation EB017 Platine de bus CAN EB018 Platine MIDI EB021 Motors board EB022 Platine Internet EB023 Platine Bluetooth EB024 Platine de bus LIN EB027 Platine CODEC pour E blocks Bluetooth...

Страница 21: ...owcode ELFCS2SI Assembleur pour PICmicros V4 EL629SI4 Techniques de logique program mable ELPLDSI Flowcode V5 pour PICmicro TEFLCSI5 Flowcode V5 pour ARM TERMSI5 Flowcode V5 pour AVR TEVRSI5 Flowcode...

Страница 22: ...22 Inhalt E blocks Einf hrung 23 Beispiele von E blocks Systemen 24 Elektrische Angaben 25 Mechanische Eigenschaften 28 Verf gbare E blocks und Zubeh r 30...

Страница 23: ...RS232 Boards Internet Boards etc Downstream Module werden zwar generell von Upstream Modulen gesteuert der Datenfluss kann jedoch beide Richtungen in das Modul hinein und aus ihm heraus haben Upstream...

Страница 24: ...AVR Mikrocontroller erkennt ankommende Anrufe und verbindet den Anrufer dann mit dem Mikrofon sodass dieser lauschen kann was sich in dem Raum tut in dem die Wanze platziert ist Eine Tastatur und ein...

Страница 25: ...er Ausg nge zur Spannungsversorgung anderer Module via Schraubklemmen Die Upstream Module selbst werden von h heren Spannungen via Buchsen f r externe Netzteile versorgt Die notwendigen Spannungen f r...

Страница 26: ...gital Sensor Eingang Die Bits 0 bis 4 wurden ausgew hlt da viele Chips der PICmicro Serie die A D Eing nge auf genau diese Bits gelegt haben Falls man einen anderen Mikrocontroller verwendet und z B e...

Страница 27: ...sitzen welche im Falle eines Falles leicht ausgewechselt werden kann Selbstverst ndlich sind diese Tochterplatinen auch einzeln lieferbar Um Upstream Boards zu sch tzen sind au erdem alle Ports der D...

Страница 28: ...egrenzte mechanische Stabilit t Ein Beispiel dieser Montageart zeigt Bild 5 Stabile Montage Wenn die Grundkonfiguration eines E blocks Systems einmal steht empfiehlt es sich die Montage richtig stabil...

Страница 29: ...ulicht diesen Aufbau Die Abdeckhaube macht ein E blocks Modul mechanisch stabiler und sch tzt dieses in gewissem Ausma gegen unabsichtliche und willk rliche Zerst rung Eine Ausnahme ist das Switch Boa...

Страница 30: ...ine EB015 Prototypen Platine EB016 Patch Feld EB017 CAN Board EB018 MIDI Board EB021 Motors board EB022 Internet Board EB023 Bluetooth Board EB024 LIN Bus Board EB027 Bluetooth CODEC Board EB032 PS2 u...

Страница 31: ...se ELFCS2SI Assembler f r PIC Mikrocontroller V4 EL629SI4 Programmable Logic Techniques ELPLDSI Flowcode V5 f r PICmicro TEFLCSI5 Flowcode V5 f r ARM TERMSI5 Flowcode V5 f r AVR TEVRSI5 Flowcode V5 f...

Страница 32: ...32 Contenido Introducci n a los E blocks 33 Ejemplos de sistemas de E blocks 34 Consideraciones El ctricas 35 Propiendades F sicas 38 Accesorios y E blocks disponibles 40...

Страница 33: ...mos incluir la tarjeta LED la tarjeta RS232 la tarjeta Internet etc Las tarjetas downstream est n controladas por la tarjeta upstream pero la informaci n puede entrar y salir de ellas Las tarjetas up...

Страница 34: ...r AVR para detectar las llamadas entrantes y a continu aci n canalizar el sonido local al emisor entrante que puede escuchar lo que sucede en la sala Un teclado y un LCD permiten realizar diversas con...

Страница 35: ...tencia en los conectores de terminales de tornillo Los E blocks upstream son alimentados aplicando una tensi n superior a trav s de un conector de potencia macho y utilizan un regu lador para generar...

Страница 36: ...entes Bit 0 LDR Resistencia Dependiente de la Luz Bit 1 RV1 Resistencia Variable1 Bit 2 Salida sensores digitales Bit 3 Sensor anal gico Bit 4 Entrada sensor digital Se han seleccionado los bits 0 a 4...

Страница 37: ...ta del procesador ARM y tarjeta FPGA utilizan componentes SMD que no pueden insertase en zocalo y que son dificiles de soldar En estos casos hemos utilizado una tarjeta secundaria m s peque a de modo...

Страница 38: ...as autoblocantes M3 estos mantendr n los pernos en su lugar correspondiente en el cuadro de circuitos y actu ar n como separadores para mantener la tarjeta separada de la placa base consulte la Figura...

Страница 39: ...y provocan que en cierta medida sean inviolables La excepci n es la tarjeta de pulsadores que de bido a que los pulsadores son relativamente cortos requiere que los separadores sean sustituidos por c...

Страница 40: ...bus CAN EB018 Tarjeta interface MIDI EB021 Motors board EB022 Tarjeta Internet EB023 Tarjeta Bluetooth EB024 Tarjeta bus LIN EB027 Tarjeta CODEC de voz de los E blocks EB032 Tarjeta Interconexi n VGA...

Страница 41: ...code ELFCS2SI Ensamblador para PICmicros EL629SI4 T cnicas de programaci n digital ELPLDSI FlowCode v5 para PICmicro TEFLCSI5 FlowCode v5 para ARM TERMSI5 FlowCode v5 para AVR TEVRSI5 FlowCode v5 para...

Страница 42: ...42 Notes...

Страница 43: ...43 Notes...

Страница 44: ...for any incidental special or consequential damages including but not limited to loss of business profits whether in action contract or tort or based on a warranty arising out of or in connection wit...

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