{"id":65,"date":"2012-02-01T12:57:57","date_gmt":"2012-02-01T12:57:57","guid":{"rendered":"http:\/\/www.horter.de\/blog\/?p=65"},"modified":"2023-01-14T17:25:20","modified_gmt":"2023-01-14T17:25:20","slug":"i2c-rs232-modem","status":"publish","type":"post","link":"https:\/\/www.horter.de\/blog\/i2c-rs232-modem\/","title":{"rendered":"I2C-RS232-Modem"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" title=\"RS232-I2C-Interface\" src=\"https:\/\/www.horter.de\/i2c\/i2c-modem\/i2c-modem_b1.jpg\" alt=\"Bild RS232-I2C-Modem\" width=\"300\" height=\"215\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>Mit dem I2C-Modem ist es noch einfacher auf I2C-Bausteine zuzugreifen. \u00dcber die serielle Schnittstelle werden Steuersequenzen geschrieben die vom Modem in I2C-Befehle umgesetzt werden.<\/p>\n<p>Das Modem wird mit den Datenleitungen <strong>RxD<\/strong> <strong>TxD<\/strong> und <strong>GND<\/strong> mit der seriellen Schnittstelle des PCs verbunden. das Signal <strong><span style=\"color: #ff0000;\">INT<\/span><\/strong> der Eingabebaugruppen oder Temperatursensoren ist zus\u00e4tzlich wie beim Koppler auf CTS gelegt, kann aber auch \u00fcber einen Steuerbefehl ausgelesen werden.<\/p>\n<p>Auf der I2C-Seite des Modems stehen die Signale <span style=\"color: #ffff00;\"><strong>SCL<\/strong><\/span> und <strong><span style=\"color: #00ff00;\">SDA<\/span><\/strong> f\u00fcr die I2C-Hardware zur Verf\u00fcgung. Wie beim Koppler wird das Signal <strong><span style=\"color: #ff0000;\">INT<\/span><\/strong> nicht unbedingt ben\u00f6tigt kann aber dazu verwendet werden einen Interupt\u00a0 auszul\u00f6sen wenn sich an einer Eingabekarte etwas ver\u00e4ndert hat.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" title=\"Anschluss I2C-RS232-Interface an den Bus\" src=\"https:\/\/www.horter.de\/i2c\/i2c-modem\/schema_modem.jpg\" alt=\"Schema I2C-Bus\" width=\"600\" height=\"165\" \/><\/p>\n<p><span style=\"font-family: arial,helvetica,sans-serif;\">Mit den Jumpern auf der Platine kann die Terminierung der I2C-Signale auf dem Koppler erfolgen. Falls Sie bei l\u00e4ngeren Leitungen am Leitungsende terminieren m\u00f6chten, k\u00f6nnen die Jumper entfernt werden.<\/span><\/p>\n<p><span style=\"font-family: arial,helvetica,sans-serif;\">Die drei Leuchtdioden zeigen den aktuellen Signalpegel an. Dies hat sich bei der Softwareerstellung als\u00a0 ungemein n\u00fctzlich erwiesen.<\/span><\/p>\n<p><span style=\"font-family: arial,helvetica,sans-serif;\">Weitere Informationen finden Sie auf der <a title=\"Produktseite I2C-RS232 Interface\" href=\"https:\/\/www.horter.de\/i2c\/i2c-modem\/i2c_modem_1.html\" target=\"_blank\" rel=\"noopener\">Produktseite <\/a> und im <a title=\"Downloadbereich I2C-Produkte\" href=\"https:\/\/www.horter.de\/download\/i2c_1.html\" target=\"_blank\" rel=\"noopener\">Downloadbereich<\/a>.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>&nbsp; Mit dem I2C-Modem ist es noch einfacher auf I2C-Bausteine zuzugreifen. \u00dcber die serielle Schnittstelle werden Steuersequenzen geschrieben die vom Modem in I2C-Befehle umgesetzt werden. Das Modem wird mit den Datenleitungen RxD TxD und GND mit der seriellen Schnittstelle des&#8230; <a class=\"continue-reading-link\" href=\"https:\/\/www.horter.de\/blog\/i2c-rs232-modem\/\">mehr lesen<\/a><\/p>\n","protected":false},"author":3,"featured_media":28269,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[269,101],"tags":[36,35],"class_list":["post-65","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-i2c-pc-interface","category-programmierung","tag-asci","tag-i2c-modem"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>I2C-RS232-Modem - Horter &amp; Kalb Blog<\/title>\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.horter.de\/blog\/i2c-rs232-modem\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"I2C-RS232-Modem - Horter &amp; Kalb Blog\" \/>\n<meta property=\"og:description\" content=\"&nbsp; Mit dem I2C-Modem ist es noch einfacher auf I2C-Bausteine zuzugreifen. \u00dcber die serielle Schnittstelle werden Steuersequenzen geschrieben die vom Modem in I2C-Befehle umgesetzt werden. Das Modem wird mit den Datenleitungen RxD TxD und GND mit der seriellen Schnittstelle des... mehr lesen\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.horter.de\/blog\/i2c-rs232-modem\/\" \/>\n<meta property=\"og:site_name\" content=\"Horter &amp; Kalb Blog\" \/>\n<meta property=\"article:published_time\" content=\"2012-02-01T12:57:57+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-01-14T17:25:20+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.horter.de\/blog\/wp-content\/uploads\/2012\/02\/I2C-Modem1.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"760\" \/>\n\t<meta property=\"og:image:height\" content=\"760\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"JH\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Verfasst von\" \/>\n\t<meta name=\"twitter:data1\" content=\"JH\" \/>\n\t<meta name=\"twitter:label2\" content=\"Gesch\u00e4tzte Lesezeit\" \/>\n\t<meta name=\"twitter:data2\" content=\"1\u00a0Minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.horter.de\/blog\/i2c-rs232-modem\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.horter.de\/blog\/i2c-rs232-modem\/\"},\"author\":{\"name\":\"JH\",\"@id\":\"https:\/\/www.horter.de\/blog\/#\/schema\/person\/a8a4c3c5d3167dce7c7d31df6088b5d2\"},\"headline\":\"I2C-RS232-Modem\",\"datePublished\":\"2012-02-01T12:57:57+00:00\",\"dateModified\":\"2023-01-14T17:25:20+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.horter.de\/blog\/i2c-rs232-modem\/\"},\"wordCount\":185,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.horter.de\/blog\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.horter.de\/blog\/i2c-rs232-modem\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.horter.de\/blog\/wp-content\/uploads\/2012\/02\/I2C-Modem1.jpg\",\"keywords\":[\"Asci\",\"I2C-Modem\"],\"articleSection\":[\"I2C-PC-Interface\",\"Programmierung\"],\"inLanguage\":\"de\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.horter.de\/blog\/i2c-rs232-modem\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.horter.de\/blog\/i2c-rs232-modem\/\",\"url\":\"https:\/\/www.horter.de\/blog\/i2c-rs232-modem\/\",\"name\":\"I2C-RS232-Modem - Horter &amp; 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