{"id":166843,"date":"2017-07-17T00:11:33","date_gmt":"2017-07-17T00:11:33","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/une-nouvelle-passerelle-pour-le-bus-lin\/"},"modified":"2017-07-17T00:11:33","modified_gmt":"2017-07-17T00:11:33","slug":"une-nouvelle-passerelle-pour-le-bus-lin","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/une-nouvelle-passerelle-pour-le-bus-lin\/","title":{"rendered":"Une nouvelle passerelle pour le bus LIN"},"content":{"rendered":"<p>Chaque MLX81120 se connecte en esclave LIN sur le bus LIN principal, et il est command\u00e9 directement par le module BCM (Body Control Module, ou module de commande d\u2019habitacle) du v\u00e9hicule. Ce nouveau dispositif permet de connecter jusqu&rsquo;\u00e0 16 modules LIN RGB esclave sur un bus LIN priv\u00e9, permettant ainsi de connecter jusqu&rsquo;\u00e0 196 \u00e9clairages \u00e0 LED \u00e0 un m\u00eame BCM par l&rsquo;interm\u00e9diaire d&rsquo;un bus LIN. Cette passerelle LIN-LIN nouvelle-g\u00e9n\u00e9ration s\u2019appuie sur le contr\u00f4leur \u00e0 CPU RISC, MLX16. Ce MCU 16&nbsp;bits int\u00e8gre 32&nbsp;ko de m\u00e9moire Flash (avec ECC), 16&nbsp;ko de ROM, 2&nbsp;ko de RAM, et 380&nbsp;octets d\u2019EEPROM (avec ECC). La ROM est livr\u00e9e charg\u00e9e avec un driver LIN, un bootloader (chargeur d&rsquo;amor\u00e7age), une biblioth\u00e8que math\u00e9matique et un algorithme de gestion de couleurs RVB.<\/p>\n<p>Le contr\u00f4leur de protocole LIN fonctionne jusqu&rsquo;\u00e0 19.2&nbsp;kBauds et il est conforme LIN 2.x et SAE J2602. Ce bloc g\u00e8re les trames de mani\u00e8re autonome&nbsp;; en s&rsquo;assurant qu&rsquo;il y ait tr\u00e8s peu d&rsquo;interruptions de l&rsquo;application principale. Sont \u00e9galement inclus dans le MLX81120 un transpondeur LIN ma\u00eetre et esclave, tous deux conformes LIN 2.x et SAE J2602. Le 2nd transpondeur ma\u00eetre permet d\u2019obtenir une architecture d\u2019\u00e9clairage ambiant d\u00e9centralis\u00e9e dans une voiture, gr\u00e2ce \u00e0 laquelle on peut ajouter et\/ou modifier des fonctions d&rsquo;\u00e9clairage pour diff\u00e9rents mod\u00e8les de voitures ou diff\u00e9rents niveaux d\u2019\u00e9quipement, sans avoir \u00e0 remplacer le module BCM ni l\u2019ECU (Electronic Control Unit, ou unit\u00e9 de commande \u00e9lectronique) d\u2019\u00e9clairage.<\/p>\n<p>Une grande capacit\u00e9 d&rsquo;E\/S est disponible gr\u00e2ce \u00e0 quatre lignes E\/S \u00e0 tension \u00e9lev\u00e9e, \u00e0 plusieurs sorties PWM (Pulse Width Modulation, ou modulation de largeur d&rsquo;impulsion)16&nbsp;bits, \u00e0 des entr\u00e9es \u00e0 capacit\u00e9 d\u2019interruption et \u00e0 un CAN 10&nbsp;bits \u00e0 pr\u00e9-driver int\u00e9gr\u00e9. Le MLX81120 est dot\u00e9 d\u2019un r\u00e9gulateur de tension haut-rendement, qui ne consomme que 20&nbsp;\u03bcA en mode veille. Les autres fonctions sont notamment la compensation de temp\u00e9rature de LED, la compensation de courant de fuite de LED, ainsi qu\u2019un circuit de surveillance int\u00e9grale de batterie et de temp\u00e9rature.<\/p>\n<p>Le MLX81120 est tr\u00e8s souple, peut \u00eatre configur\u00e9 pour r\u00e9pondre aux diff\u00e9rents besoins utilisateur gr\u00e2ce \u00e0 sa m\u00e9moire Flash, et n\u2019a besoin que de trois composants externes pour LIN RVB, ce qui fait gagner de la place sur la carte et r\u00e9duit le co\u00fbt de la solution.<\/p>\n<p><a href=\"http:\/\/www.melexis.com\">www.melexis.com<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Melexis annonce une nouvelle passerelle LIN-LIN (Local Interconnect Network, ou r\u00e9seau local d&rsquo;interconnexion) qui surmonte la limitation \u00e0 16 dispositifs des bus LIN typiques. <\/p>\n","protected":false},"author":9,"featured_media":166844,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[881],"tags":[],"domains":[47],"ppma_author":[1141],"class_list":["post-166843","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Une nouvelle passerelle pour le bus LIN ...<\/title>\n<meta name=\"description\" content=\"Melexis annonce une nouvelle passerelle LIN-LIN (Local Interconnect Network, ou r\u00e9seau local d&#039;interconnexion) qui surmonte la limitation \u00e0 16 dispositifs...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/166843\/\" \/>\n<meta property=\"og:locale\" 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