{"id":1651,"date":"2019-05-01T14:21:37","date_gmt":"2019-05-01T12:21:37","guid":{"rendered":"http:\/\/entropie.org\/3615\/?p=1651"},"modified":"2019-05-02T07:22:00","modified_gmt":"2019-05-02T05:22:00","slug":"clavier-ps-2-et-arduino-sans-bibliotheque-dediee","status":"publish","type":"post","link":"https:\/\/entropie.org\/3615\/index.php\/2019\/05\/01\/clavier-ps-2-et-arduino-sans-bibliotheque-dediee\/","title":{"rendered":"Clavier PS\/2 et Arduino (sans biblioth\u00e8que d\u00e9di\u00e9e)"},"content":{"rendered":"

Le montage :<\/strong><\/p>\n

Port PS\/2<\/a>
\nBroche 1 (data) => Broche 4 de l’Arduino
\nBroche 2 (non connect\u00e9)
\nBroche 3 => GND de l’Arduino
\nBroche 4 => 5V de l’Arduino
\nBroche 5 (clock) => Broche 3 de l’Arduino
\nBroche 6 (non connect\u00e9)<\/p>\n

Le code Arduino :<\/strong><\/p>\n

\r\n///////////////////////////////////////////////////////////////////<\/font>\r\n\r\nconst<\/font> int<\/font> DATA_PIN<\/font> =<\/font> 4<\/font>;<\/font>\r\nconst<\/font> int<\/font> CLOCK_PIN<\/font> =<\/font> 3<\/font>;<\/font>\r\n\r\n///////////////////////////////////////////////////////////////////<\/font>\r\n\r\nvoid<\/font> setup<\/font>(<\/font>)<\/font> {<\/font>\r\n  pinMode<\/font>(<\/font>DATA_PIN<\/font>,<\/font> INPUT<\/font>)<\/font>;<\/font>\r\n  // C'est le clavier qui g\u00e9n\u00e8re l'horloge de synchronisation<\/font>\r\n  pinMode<\/font>(<\/font>CLOCK_PIN<\/font>,<\/font> INPUT<\/font>)<\/font>;<\/font>\r\n  Serial<\/font><\/b>.<\/font>begin<\/font>(<\/font>9600<\/font>)<\/font>;<\/font>\r\n}<\/font>\r\n\r\n///////////////////////////////////////////////////////////////////<\/font>\r\n\r\nvoid<\/font> loop<\/font>(<\/font>)<\/font> {<\/font>\r\n  Serial<\/font><\/b>.<\/font>println<\/font>(<\/font>dataRead<\/font>(<\/font>)<\/font>,<\/font>HEX<\/font>)<\/font>;<\/font>\r\n}<\/font>\r\n\r\n///////////////////////////////////////////////////////////////////<\/font>\r\n\r\nint<\/font> dataRead<\/font>(<\/font>)<\/font> {<\/font> // La trame est de 11 bits<\/font>\r\n/*<\/font>\r\n  Si la pression est maintenue, le code est envoy\u00e9 environ toutes<\/font>\r\n  les 100 ms (make code). Quand la touche est relach\u00e9e, le clavier<\/font>\r\n  envoie le code F0 suivi du code de la touche relach\u00e9e (break<\/font>\r\n  code), sauf pour quelques touches particuli\u00e8res (voir le fichier<\/font>\r\n  PDF correspondant ci-dessous).<\/font>\r\n*/<\/font>\r\n  byte<\/font> data<\/font> =<\/font> 0<\/font>;<\/font>\r\n  while<\/font> (<\/font>digitalRead<\/font>(<\/font>DATA_PIN<\/font>)<\/font> &&<\/font> digitalRead<\/font>(<\/font>CLOCK_PIN<\/font>)<\/font>)<\/font>;<\/font>\r\n  // 1 bit de start : La ligne de transmission des donn\u00e9es est<\/font>\r\n  // pass\u00e9e au niveau bas et un signal d'horloge est engendr\u00e9 :<\/font>\r\n  while<\/font> (<\/font>digitalRead<\/font>(<\/font>CLOCK_PIN<\/font>)<\/font>)<\/font>;<\/font>\r\n  while<\/font> (<\/font>!<\/font>digitalRead<\/font>(<\/font>CLOCK_PIN<\/font>)<\/font>)<\/font>;<\/font>\r\n  // 8 bits de donn\u00e9es (bit de poids faible (LSB) en premier)<\/font>\r\n  for<\/font> (<\/font>int<\/font> d<\/font>=<\/font>0<\/font>;<\/font> d<\/font><=<\/font>7<\/font>;<\/font> d<\/font>++<\/font>)<\/font> {<\/font>\r\n    // Les donn\u00e9es sont valables sur le front descendant<\/font>\r\n    // du signal d'horloge<\/font>\r\n    while<\/font> (<\/font>digitalRead<\/font>(<\/font>CLOCK_PIN<\/font>)<\/font>)<\/font>;<\/font>\r\n    data<\/font> =<\/font> data<\/font> |<\/font> digitalRead<\/font>(<\/font>DATA_PIN<\/font>)<\/font> <<<\/font> d<\/font>;<\/font>\r\n    while<\/font> (<\/font>!<\/font>digitalRead<\/font>(<\/font>CLOCK_PIN<\/font>)<\/font>)<\/font>;<\/font>\r\n  }<\/font>\r\n  // 1 bit de parit\u00e9<\/font>\r\n  while<\/font> (<\/font>digitalRead<\/font>(<\/font>CLOCK_PIN<\/font>)<\/font>)<\/font>;<\/font>                    \r\n  while<\/font> (<\/font>!<\/font>digitalRead<\/font>(<\/font>CLOCK_PIN<\/font>)<\/font>)<\/font>;<\/font>\r\n  // 1 bit de stop<\/font>\r\n  while<\/font> (<\/font>digitalRead<\/font>(<\/font>CLOCK_PIN<\/font>)<\/font>)<\/font>;<\/font>                   \r\n  while<\/font> (<\/font>!<\/font>digitalRead<\/font>(<\/font>CLOCK_PIN<\/font>)<\/font>)<\/font>;<\/font>\r\n  return<\/font> data<\/font>;<\/font>\r\n}<\/font>\r\n\r\n///////////////////////////////////////////////////////////////////<\/font>\r\n<\/pre>\n
Les codes obtenus avec le programme Arduino ci-dessus :<\/strong><\/p>\n
Clavier PS\/2<\/a> (fichier PDF)<\/p>\n","protected":false},"excerpt":{"rendered":"
Le montage : Port PS\/2 Broche 1 (data) => Broche 4 de l’Arduino Broche 2 (non connect\u00e9) Broche 3 => GND de l’Arduino Broche 4 => 5V de l’Arduino Broche 5 (clock) => Broche 3 de l’Arduino Broche 6 (non connect\u00e9) Le code Arduino : /////////////////////////////////////////////////////////////////// const int DATA_PIN = 4; const int CLOCK_PIN = … Continuer la lecture de « Clavier PS\/2 et Arduino (sans biblioth\u00e8que d\u00e9di\u00e9e) »<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10,5],"tags":[],"class_list":["post-1651","post","type-post","status-publish","format-standard","hentry","category-arduino","category-tutoriels"],"_links":{"self":[{"href":"https:\/\/entropie.org\/3615\/index.php\/wp-json\/wp\/v2\/posts\/1651"}],"collection":[{"href":"https:\/\/entropie.org\/3615\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/entropie.org\/3615\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/entropie.org\/3615\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/entropie.org\/3615\/index.php\/wp-json\/wp\/v2\/comments?post=1651"}],"version-history":[{"count":12,"href":"https:\/\/entropie.org\/3615\/index.php\/wp-json\/wp\/v2\/posts\/1651\/revisions"}],"predecessor-version":[{"id":1663,"href":"https:\/\/entropie.org\/3615\/index.php\/wp-json\/wp\/v2\/posts\/1651\/revisions\/1663"}],"wp:attachment":[{"href":"https:\/\/entropie.org\/3615\/index.php\/wp-json\/wp\/v2\/media?parent=1651"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/entropie.org\/3615\/index.php\/wp-json\/wp\/v2\/categories?post=1651"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/entropie.org\/3615\/index.php\/wp-json\/wp\/v2\/tags?post=1651"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}