{"id":7263,"date":"2021-01-18T14:16:46","date_gmt":"2021-01-18T14:16:46","guid":{"rendered":"https:\/\/www.fambach.net\/?p=7263"},"modified":"2021-01-20T09:40:11","modified_gmt":"2021-01-20T09:40:11","slug":"espressif-idf-tasks-2","status":"publish","type":"post","link":"https:\/\/www.fambach.net\/en\/espressif-idf-tasks-2\/","title":{"rendered":"Espressif IDF \u2013 GPIOs"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 ez-toc-wrap-left counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Contents\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.fambach.net\/en\/espressif-idf-tasks-2\/#Grundsatzliches\" >Grunds&auml;tzliches<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.fambach.net\/en\/espressif-idf-tasks-2\/#Ausgang\" >Ausgang<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.fambach.net\/en\/espressif-idf-tasks-2\/#Eingang\" >Eingang<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.fambach.net\/en\/espressif-idf-tasks-2\/#Fazit\" >Conclusion<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.fambach.net\/en\/espressif-idf-tasks-2\/#Verwandte_Beitrage\" >Verwandte Beitr&auml;ge<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.fambach.net\/en\/espressif-idf-tasks-2\/#Quellen\" >Sources<\/a><\/li><\/ul><\/nav><\/div>\n\n<p class=\"wp-block-paragraph\">Die meisten GPIO Pins des ESP32 sind, bis auf ein paar Ausnahmen, sowohl Eing&auml;nge als auch Ausg&auml;nge (Siehe hierzu auch das entsprechende Datenblatt). Wie diese Digital angesteuert werden, zeigen die n&auml;chsten Beispiele. <\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Grundsatzliches\"><\/span>Grunds&auml;tzliches<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Sind die Pins als Digital konfiguriert k&ouml;nnen sie jeweil den Wert 1= true oder 0= false annehmen.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Ausgang\"><\/span>Ausgang<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Hier das Blinkbeispiele mit dem periodischen Timern aus der vorangegangenen &Uuml;bung. Nur wird jetzt eine LED geschaltet.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Als bin&auml;ren Ausgang konfigurieren<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>gpio_set_direction(&lt;LED_PIN&gt;, GPIO_MODE_OUTPUT);<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Wert setzten<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>gpio_set_level(&lt;LED_PIN&gt;, &lt;0|1&gt;);<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"> <\/p>\n\n\n\n<script>\nvar project = \"sfambach\/espressif-idf\/tree\/master\/L7_GPIO_OUTPUT\";\nvar file = \"\/main\/main.c\";\nvar test = project + file;\nvar startAt = 16;\nvar endAt = 0;\n\ndocument.write('<a href=\"https:\/\/github.com\/'+project+'\" target=\"_blank\">Link zu Git');\ndocument.write('<a href=\"https:\/\/downgit.github.io\/#\/home?url=https:\/\/github.com\/'+project+'\" target=\"_blank\">Download des Projektes mit DownGit<\/script><p>&#8218;);\n\ndocument.write(&#8218;<\/p><div style=\"font-size:1vw\">&#8218;);\ndocument.write(&#8218;<script src=\"https:\\\/\\\/gist-it.appspot.com\\\/github.com\\\/'+test+'\\?slice='+startAt+':'+endAt+'\"><\\\/script>');\ndocument.write('<\/script><p>&#8218;);\n\n\n\n\n<\/p><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Eingang\"><\/span>Eingang<span class=\"ez-toc-section-end\"><\/span><\/h2><p class=\"wp-block-paragraph\">Mein Code hierzu orientiert sich sehr stark am Beispiel Projekt &#8222;examples\/peripherals\/gpio\/generic_gpio&#8220; der IDF. <\/p><p class=\"wp-block-paragraph\">Das Beispiel ist leider etwas umfangreicher geworden, da es mit zwei esentiellen Mechanismen arbeitet. Zum einen den Interrupts und zum andren einen Task. Die Tasks habe ich kurz zuvor eingef&uuml;hrt.<\/p><p class=\"wp-block-paragraph\">Als bin&auml;ren Eingang  konfigurieren<\/p><pre class=\"wp-block-code\"><code>gpio_set_direction(&lt;LED_PIN&gt;, GPIO_MODE_INPUT);<\/code><\/pre><p class=\"wp-block-paragraph\">Wert abfragen<\/p><pre class=\"wp-block-code\"><code>bool gpio_get_level(&lt;PIN&gt;);<\/code><\/pre><p class=\"wp-block-paragraph\">Interupt aktivieren<\/p><pre class=\"wp-block-code\"><code>\/\/Interupt Typ setzten\ngpio_set_intr_type(\n     &lt;PIN&gt;, \n     &lt;\n      GPIO_INTR_DISABLE \/\/ deaktiviert\n      GPIO_INTR_POSEDGE\r \/\/ Steigende Flanke\n      GPIO_INTR_NEGEDGE\r \/\/ Fallender Flanke\n\r      GPIO_INTR_ANYEDGE\r \/\/ Beider Flanken\n      GPIO_INTR_LOW_LEVEL\r \/\/ Eingang Low\n      GPIO_INTR_HIGH_LEVEL \/\/ Eingang High\n     &gt;\n);\r\n\r\n\/\/ Interupt f&uuml;r Pin aktivieren\ngpio_intr_enable(&lt;PIN&gt;);\r<\/code><\/pre><p class=\"wp-block-paragraph\">Beispielprogramm<\/p><p class=\"wp-block-paragraph\">Vor der Verwendung des Beispielprogramms menuconfig nicht vergessen, die Schalter k&ouml;nnen einzel aktiviert werden. Zus&auml;tzlich kann die Kurz\/Lang Unterscheidung eingeschaltet werden. Diese pr&uuml;ft ob ein Knopf lange oder kurz gedr&uuml;ckt wurde.:<\/p><figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"363\" height=\"190\" src=\"https:\/\/www.fambach.net\/wp-content\/uploads\/2021-01-20-09_41_03.jpg\" alt=\"\" class=\"wp-image-7321\"><figcaption>Aktivierung \/ Konfiguration der Schalter<\/figcaption><\/figure><script>\nvar project = \"sfambach\/espressif-idf\/tree\/master\/L7_GPIO_INPUT\";\nvar file = \"\/main\/main.c\";\nvar test = project + file;\nvar startAt = 16;\nvar endAt = 0;\n\ndocument.write('<a href=\"https:\/\/github.com\/'+project+'\" target=\"_blank\">Link zu Git');\ndocument.write('<a href=\"https:\/\/downgit.github.io\/#\/home?url=https:\/\/github.com\/'+project+'\" target=\"_blank\">Download des Projektes mit DownGit');\n\ndocument.write('<div style=\"font-size:1vw\">');\ndocument.write('<script src=\"https:\\\/\\\/gist-it.appspot.com\\\/github.com\\\/'+test+'\\?slice='+startAt+':'+endAt+'\"><\\\/script>');\ndocument.write('');\n<\/script><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Fazit\"><\/span>Conclusion<span class=\"ez-toc-section-end\"><\/span><\/h2><p class=\"wp-block-paragraph\">GPIOs sind einfach zu bedienen. Die Handhabung &auml;hnelt der Arduino GUI. Kommen Interupte dazu wird der Code schnell komplexer.<\/p><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Verwandte_Beitrage\"><\/span>Verwandte Beitr&auml;ge<span class=\"ez-toc-section-end\"><\/span><\/h2><p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.fambach.net\/en\/?p=6943\">Main contribution<\/a><\/p><div class=\"display-posts-listing\">\n<div class=\"listing-item\"><a class=\"title\" href=\"https:\/\/www.fambach.net\/en\/espressif-idf-projekt-erstellen\/\">Espressif IDF \u2013 Create Project<\/a><\/div>\n<div class=\"listing-item\"><a class=\"title\" href=\"https:\/\/www.fambach.net\/en\/espressif-idf-konsolenausgabe\/\">Espressif IDF \u2013 Console Output<\/a><\/div>\n<div class=\"listing-item\"><a class=\"title\" href=\"https:\/\/www.fambach.net\/en\/espressif-idf-fehlerbehandlung\/\">Espressif IDF \u2013 Error Handling<\/a><\/div>\n<div class=\"listing-item\"><a class=\"title\" href=\"https:\/\/www.fambach.net\/en\/espressif-idf-log-nachrichten\/\">Espressif IDF \u2013 Log Messages<\/a><\/div>\n<div class=\"listing-item\"><a class=\"title\" href=\"https:\/\/www.fambach.net\/en\/espressif-idf-timer\/\">Espressif IDF \u2013 Timer<\/a><\/div>\n<div class=\"listing-item\"><a class=\"title\" href=\"https:\/\/www.fambach.net\/en\/espressif-idf-menuconfig\/\">Espressif IDF \u2013 Menuconfig<\/a><\/div>\n<div class=\"listing-item\"><a class=\"title\" href=\"https:\/\/www.fambach.net\/en\/espressif-idf-tasks\/\">Espressif IDF \u2013 Tasks<\/a><\/div>\n<div class=\"listing-item\"><a class=\"title\" href=\"https:\/\/www.fambach.net\/en\/espressif-idf-tasks-2\/\">Espressif IDF \u2013 GPIOs<\/a><\/div>\n<\/div>\n\n\n\n<\/p><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Quellen\"><\/span>Sources<span class=\"ez-toc-section-end\"><\/span><\/h2><p class=\"wp-block-paragraph\"><a rel=\"noreferrer noopener\" href=\"https:\/\/docs.espressif.com\/projects\/esp-idf\/en\/latest\/esp32\/index.html\" target=\"_blank\">IDF - Programming Guide<\/a><\/p><p class=\"wp-block-paragraph\"><a href=\"https:\/\/docs.espressif.com\/projects\/esp-idf\/en\/latest\/esp32\/api-reference\/peripherals\/gpio.html\" target=\"_blank\" rel=\"noreferrer noopener\">IDF - GPIO &amp; RTC GPIO<\/a><\/p><p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>Die meisten GPIO Pins des ESP32 sind, bis auf ein paar Ausnahmen, sowohl Eing&auml;nge als auch Ausg&auml;nge (Siehe hierzu auch das entsprechende Datenblatt). Wie diese Digital angesteuert werden, zeigen die n&auml;chsten Beispiele. Grunds&auml;tzliches Sind die Pins als Digital konfiguriert k&ouml;nnen sie jeweil den Wert 1= true oder 0= false annehmen. Ausgang Hier das Blinkbeispiele mit &#8230;<\/p>\n<a href=\"https:\/\/www.fambach.net\/en\/espressif-idf-tasks-2\/\" class=\"read-more-link\">Carry on reading <span class=\"screen-reader-text\">\"Espressif IDF &#8211; GPIOs\"<\/span> <span class=\"meta-nav\">\u2192<\/span><\/a>","protected":false},"author":1,"featured_media":7328,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"no","_lmt_disable":"no","footnotes":""},"categories":[188,472,473,496],"tags":[465,474,498,492,476,493,491],"class_list":["post-7263","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-esp-32","category-esp32-s2","category-espressif-idf","category-how-to","tag-espressif","tag-espressif-idf","tag-framework","tag-howto","tag-idf","tag-lehrgang","tag-tutorial","penguin-post","penguin-post-not-sticky"],"modified_by":"sfambach","_links":{"self":[{"href":"https:\/\/www.fambach.net\/en\/wp-json\/wp\/v2\/posts\/7263","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fambach.net\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fambach.net\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fambach.net\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fambach.net\/en\/wp-json\/wp\/v2\/comments?post=7263"}],"version-history":[{"count":14,"href":"https:\/\/www.fambach.net\/en\/wp-json\/wp\/v2\/posts\/7263\/revisions"}],"predecessor-version":[{"id":7330,"href":"https:\/\/www.fambach.net\/en\/wp-json\/wp\/v2\/posts\/7263\/revisions\/7330"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.fambach.net\/en\/wp-json\/wp\/v2\/media\/7328"}],"wp:attachment":[{"href":"https:\/\/www.fambach.net\/en\/wp-json\/wp\/v2\/media?parent=7263"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fambach.net\/en\/wp-json\/wp\/v2\/categories?post=7263"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fambach.net\/en\/wp-json\/wp\/v2\/tags?post=7263"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}