{"id":223657,"date":"2012-02-26T23:00:00","date_gmt":"2012-02-26T23:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/kit-de-demonstration-pour-controle-dc-dc-de-led\/"},"modified":"2012-02-26T23:00:00","modified_gmt":"2012-02-26T23:00:00","slug":"kit-de-demonstration-pour-controle-dc-dc-de-led","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/kit-de-demonstration-pour-controle-dc-dc-de-led\/","title":{"rendered":"Kit de d\u00e9monstration pour contr\u00f4le DC\/DC de LED"},"content":{"rendered":"<p>Une caract&eacute;ristique importante de ce kit est la nouvelle version du c&eacute;l&egrave;bre outil Renesas Appilet EZ GUI. Gr&acirc;ce &agrave; cet outil, la mise en &oelig;uvre graphique d&rsquo;un syst&egrave;me d&rsquo;&eacute;clairage LED devient tr&egrave;s facile ainsi que la g&eacute;n&eacute;ration du code C pour le RL78\/l1A. Les d&eacute;veloppeurs peuvent programmer leur application en utilisant tout simplement un c&acirc;ble USB. Avec cet outil Appilet EZ, ils peuvent aussi g&eacute;n&eacute;rer les piles logicielles pour les protocoles de communication DALI et DMX512, le tout en quelques secondes. <br \/>\nLa carte d&rsquo;&eacute;valuation de ce kit inclut le composant R5F107DE dot&eacute; de 38 broches et 64 Ko de m&eacute;moire flash. Elle impl&eacute;mente des circuits efficaces pour montrer comment programmer un pilote de LED &agrave; 3 canaux pour un courant constant de 350 mA en topologie de convertisseur &quot; buck &quot;. Ceci se fait en utilisant les compteurs &agrave; modulation de largeur d&rsquo;impulsion (PWM) sur 16 bits fonctionnant &agrave; 64 MHz. Elle montre &eacute;galement comment g&eacute;rer la fonction scintillement (dithering) pour augmenter la r&eacute;solution et descendre sous la barre de la nanoseconde. La carte fournit &eacute;galement une panoplie de p&eacute;riph&eacute;riques analogiques sp&eacute;cifiques int&eacute;gr&eacute;s au microcontr&ocirc;leur, tels qu&rsquo;un amplificateur &agrave; gain programmable et des comparateurs. L&rsquo;architecture interne exceptionnelle des composants de la famille RL78\/I1A r&eacute;duit la taille du code et lib&egrave;re le CPU, lui permettant d&rsquo;ex&eacute;cuter d&rsquo;autres instructions en arri&egrave;re-plan. <br \/>\nQuatre types d&rsquo;interfaces pour la variation de luminosit&eacute; sont support&eacute;s par la carte pour prouver la souplesse de la solution. Elles comprennent DALI, DMX512, la commande &agrave; distance infrarouge et le r&eacute;glage analogique de l&rsquo;intensit&eacute;. <br \/>\nLa carte d&rsquo;&eacute;valuation RL78\/l1A DC\/DC LED Control supporte la fonction de mise au point via l&rsquo;interface USB en utilisant le d&eacute;bogueur IAR C-SPY, &eacute;vitant de faire appel &agrave; un outil suppl&eacute;mentaire. Cette liaison USB assure la programmation de la flash et supporte les fonctions standard de d&eacute;bogage telles que l&rsquo;ex&eacute;cution de code, le pas-&agrave;-pas, les points d&rsquo;arr&ecirc;t logiciels et l&rsquo;acc&egrave;s &agrave; la m&eacute;moire. La carte supporte aussi la mise au point en utilisant l&rsquo;&eacute;mulateur E1. Le kit d&rsquo;&eacute;valuation contient l&rsquo;IAR Embedded Workbench pour le microcontr&ocirc;leur RL78, incluant le compilateur limit&eacute; &agrave; 16Ko en taille de code ainsi que le d&eacute;bogueur IAR C-SPY. <\/p>\n<p><a href=\"http:\/\/www.renesas.eu\" target=\"_blank\" title=\"www.renesas.eu\" rel=\"noopener\">www.renesas.eu <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Renesas Electronics Europe a annonc\u00e9 son kit de d\u00e9monstration pour contr\u00f4le de LED DC\/DC bas\u00e9 sur le microcontr\u00f4leur RL78\/l1A. Cette famille de MCU, comprenant cinq ASSP (Application-Specific Standard Product), est destin\u00e9e aux applications d&rsquo;\u00e9clairage. Ce kit de d\u00e9monstration pour contr\u00f4le de LED DC\/DC permet aux d\u00e9veloppeurs de d\u00e9couvrir tous les avantages des solutions bas\u00e9es sur microcontr\u00f4leur pour mettre en \u0153uvre un pilote de LED. Ils peuvent notamment apprendre \u00e0 g\u00e9rer le contr\u00f4le du courant constant d&rsquo;une LED ainsi que les diverses mani\u00e8res de moduler l&rsquo;intensit\u00e9 lumineuse en tirant parti des ressources sp\u00e9cifiques \u00e0 l&rsquo;\u00e9clairage inclues dans le MCU RL78\/l1A.<\/p>\n","protected":false},"author":22,"featured_media":223658,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[881],"tags":[],"domains":[47],"ppma_author":[1149],"class_list":["post-223657","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Kit de d\u00e9monstration pour contr\u00f4le DC\/DC de LED ...<\/title>\n<meta name=\"description\" content=\"Renesas Electronics Europe a annonc\u00e9 son kit de d\u00e9monstration pour contr\u00f4le de LED DC\/DC bas\u00e9 sur le microcontr\u00f4leur RL78\/l1A. Cette famille de MCU,...\" \/>\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\/223657\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Kit de d\u00e9monstration pour contr\u00f4le DC\/DC de LED\" \/>\n<meta property=\"og:description\" content=\"Renesas Electronics Europe a annonc\u00e9 son kit de d\u00e9monstration pour contr\u00f4le de LED DC\/DC bas\u00e9 sur le microcontr\u00f4leur RL78\/l1A. Cette famille de MCU, comprenant cinq ASSP (Application-Specific Standard Product), est destin\u00e9e aux applications d&#039;\u00e9clairage. Ce kit de d\u00e9monstration pour contr\u00f4le de LED DC\/DC permet aux d\u00e9veloppeurs de d\u00e9couvrir tous les avantages des solutions bas\u00e9es sur microcontr\u00f4leur pour mettre en \u0153uvre un pilote de LED. Ils peuvent notamment apprendre \u00e0 g\u00e9rer le contr\u00f4le du courant constant d&#039;une LED ainsi que les diverses mani\u00e8res de moduler l&#039;intensit\u00e9 lumineuse en tirant parti des ressources sp\u00e9cifiques \u00e0 l&#039;\u00e9clairage inclues dans le MCU RL78\/l1A.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/223657\/\" \/>\n<meta property=\"og:site_name\" content=\"EENewsEurope\" \/>\n<meta property=\"article:published_time\" content=\"2012-02-26T23:00:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.ecinews.fr\/wp-content\/uploads\/import\/default\/files\/import\/eci3174_renesas.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2560\" \/>\n\t<meta property=\"og:image:height\" content=\"1792\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"eeNews Europe\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta 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Cette famille de MCU,...","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/223657\/","og_locale":"fr_FR","og_type":"article","og_title":"Kit de d\u00e9monstration pour contr\u00f4le DC\/DC de LED","og_description":"Renesas Electronics Europe a annonc\u00e9 son kit de d\u00e9monstration pour contr\u00f4le de LED DC\/DC bas\u00e9 sur le microcontr\u00f4leur RL78\/l1A. Cette famille de MCU, comprenant cinq ASSP (Application-Specific Standard Product), est destin\u00e9e aux applications d'\u00e9clairage. Ce kit de d\u00e9monstration pour contr\u00f4le de LED DC\/DC permet aux d\u00e9veloppeurs de d\u00e9couvrir tous les avantages des solutions bas\u00e9es sur microcontr\u00f4leur pour mettre en \u0153uvre un pilote de LED. 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