{"id":58,"date":"2014-08-23T09:54:27","date_gmt":"2014-08-23T08:54:27","guid":{"rendered":"http:\/\/www.jelectronique.com\/?p=58"},"modified":"2014-08-30T13:22:15","modified_gmt":"2014-08-30T12:22:15","slug":"tuto-asf-entreessorties","status":"publish","type":"post","link":"https:\/\/www.jelectronique.com\/?p=58","title":{"rendered":"TUTO XMEGA (ASF) : Entr\u00e9es\/Sorties"},"content":{"rendered":"
\n

La derniere version de ce tuto est disponible sur le WIKI <\/a><\/p>\n<\/blockquote>\n

ASF Atmel Software Framework<\/h2>\n

Introduction<\/h3>\n
\n

ASF est un framwork developp\u00e9 pour faciliter le d\u00e9veloppement de vos applications.<\/p>\n<\/div>\n

Ajouter une librairie<\/h3>\n
\n

Aller dans ASF \u2192 ASF Wizard
\nDans project, s\u00e9lectionner votre projet
\nSelectionner \u201cGPIO – General purpose Input\/Output (service)
\nCliquer sur \u201cAdd\u201dcliquer sur Add pour l’int\u00e9grer \u00e0 votre projet.<\/p>\n

\"\"<\/a><\/p>\n

Cliquer sur \u201cApply\u201d pour confirmer l’importation.<\/p>\n

Vous pouvez maintenant utiliser les fonctions de cette librairie. Pour acc\u00e9der \u00e0 la descriptions d\u00e9taill\u00e9es de ces fonctionner aller dans ASF Explorer \u2192 GPIO \u2192 API<\/abbr> Documentation<\/p>\n<\/div>\n

GPIO – IOPORT<\/h3>\n
\n

La librairie GPIO contient les fonctions de base permettant de lire, configurer ou commander une pin d’entr\u00e9e\/sortie.<\/p>\n

La librairie IOPORT est \u00e9galement incluse dans le \u201cpack\u201d GPIO et vous offre quelques fonctionnalit\u00e9s suppl\u00e9mentaires en se basant sur la librairie GPIO.<\/p>\n

Nous allons ajouter dans notre projet<\/p>\n

#include <ioport.h><\/span><\/pre>\n
pour pouvoir utiliser certains mot-cl\u00e9s.<\/p>\n<\/div>\n
Commander une sortie<\/h4>\n
\n
La premi\u00e8re chose \u00e0 faire et de d\u00e9finir quelle pin vous souhaitez commander. Pour ma part, je souhaite piloter une led qui est connect\u00e9e \u00e0 PD4. Pour simplifier la lisibilit\u00e9 du code, nous allons d\u00e9finir un nom pour cette sortie :<\/p>\n
#define LED_ROUGE IOPORT_CREATE_PIN(PORTD, 4)<\/span><\/pre>\n
Ensuite, il faut initialiser les fonctions IOPORT avant de pouvoir les utiliser.<\/p>\n
ioport_init(<\/span>)<\/span>;<\/span><\/pre>\n
Vous devez \u00e9galement d\u00e9finir la direction de votre pin<\/p>\n
ioport_set_pin_dir(<\/span>LED_ROUGE,<\/span> IOPORT_DIR_OUTPUT)<\/span>;<\/span><\/pre>\n
Ma led est allum\u00e9e quand PD4 est \u00e0 0V. Les XMEGA permettent facilement d’inverser la commande d’une sortie et ensuite avoir une code plus \u201clogique\u201d avec un allumage de la led quand la sortie est mise \u00e0 \u201c1\u201d.<\/p>\n
ioport_set_pin_mode(<\/span>LED_ROUGE,<\/span>IOPORT_MODE_INVERT_PIN)<\/span>;<\/span><\/pre>\n
Pour finir par la mettre \u00e0 l’\u00e9tat haut<\/p>\n
ioport_set_pin_level(<\/span>LED_ROUGE,<\/span> 1<\/span>)<\/span>;<\/span><\/pre>\n
Ce qui vous fait, au final<\/p>\n
#include <avr\/io.h><\/span>\r\n#include <ioport.h><\/span>\r\n\u00a0\r\n#define LED_ROUGE IOPORT_CREATE_PIN(PORTD, 4) \/\/LED_Rouge = PD4<\/span>\r\n\u00a0\r\nint<\/span> main(<\/span>void<\/span>)<\/span>\r\n{<\/span>\r\n\t\/\/Initialisation des entr\u00e9es\/sorties<\/span>\r\n\tioport_init(<\/span>)<\/span>;<\/span>\t\t\t\t\t\t\/\/Initialisation d'IOPORT<\/span>\r\n\tioport_set_pin_dir(<\/span>LED_ROUGE,<\/span> IOPORT_DIR_OUTPUT)<\/span>;<\/span>\t\/\/LED_ROUGE est une sortie<\/span>\r\n\tioport_set_pin_mode(<\/span>LED_ROUGE,<\/span>IOPORT_MODE_INVERT_PIN)<\/span>;<\/span>\t\/\/Inverse la commande de la pin LED_ROUGE <\/span>\r\n\u00a0\r\n\tioport_set_pin_level(<\/span>LED_ROUGE,<\/span>1<\/span>)<\/span>;<\/span>\t\t\t\/\/LED_Rouge \u00e0 l'\u00e9tat haut<\/span>\r\n\u00a0\r\n    while<\/span>(<\/span>1<\/span>)<\/span>\r\n    {<\/span>\r\n        \/\/TODO:: Please write your application code <\/span>\r\n    }<\/span>\r\n}<\/span><\/pre>\n<\/div>\n
Lire une entr\u00e9e<\/h4>\n
\n
On va ajouter \u00e0 notre code la lecture d’un bouton et modifier l’\u00e9tat de la led en fonction de l’appui du bouton. De la m\u00eame mani\u00e9re que pour la LED, nous allons nommer cette entr\u00e9e bouton.<\/p>\n
#define BOUTON IOPORT_CREATE_PIN(PORTF, 1)\t\t\/\/BOUTON = PF1<\/span><\/pre>\n
Mon bouton met une masse sur l’entr\u00e9e lors de l’appui. Tout comme pour la LED, il est plus logique d’inverser cette entr\u00e9e afin d’avoir un \u00e9tat \u201c1\u201d lors de l’appui.<\/p>\n
\tioport_set_pin_dir(<\/span>BOUTON,<\/span> IOPORT_DIR_INPUT)<\/span>;<\/span>\t\t\t\/\/BOUTON en entr\u00e9e<\/span>\r\n\tioport_set_pin_mode(<\/span>BOUTON,<\/span>IOPORT_MODE_INVERT_PIN)<\/span>;<\/span>\t\t\/\/Inverse l'\u00e9tat de la pin<\/span><\/pre>\n
Nous allons ensuite tester de mani\u00e8re permanente l’\u00e9tat du bouton. Si le bouton est appuy\u00e9, la LED sera allum\u00e9e.<\/p>\n
if<\/span>(<\/span>ioport_get_pin_level(<\/span>BOUTON)<\/span>)<\/span>\t\t\/\/Appui sur le bouton<\/span>\r\n\tioport_set_pin_level(<\/span>LED_ROUGE,<\/span>1<\/span>)<\/span>;<\/span>\t\/\/Allume la LED<\/span>\r\nelse<\/span>\t\t\t\t\t\t\/\/Relachement du bouton<\/span>\r\n\tioport_set_pin_level(<\/span>LED_ROUGE,<\/span>0<\/span>)<\/span>;<\/span>\t\/\/Eteind la LED<\/span><\/pre>\n
Voici le code complet :<\/p>\n
#include <avr\/io.h><\/span>\r\n#include <ioport.h><\/span>\r\n\u00a0\r\n#define LED_ROUGE IOPORT_CREATE_PIN(PORTD, 4)\t\/\/LED_Rouge = PD4<\/span>\r\n#define BOUTON IOPORT_CREATE_PIN(PORTF, 1)\t\/\/BOUTON = PF1<\/span>\r\n\u00a0\r\nint<\/span> main(<\/span>void<\/span>)<\/span>\r\n{<\/span>\r\n\t\/\/Initialisation des entr\u00e9es\/sorties<\/span>\r\n\tioport_init(<\/span>)<\/span>;<\/span>\t\t\t\t\t\t\t\/\/Initialisation d'IOPORT<\/span>\r\n\tioport_set_pin_dir(<\/span>LED_ROUGE,<\/span> IOPORT_DIR_OUTPUT)<\/span>;<\/span>\t\t\/\/LED_ROUGE est une sortie<\/span>\r\n\tioport_set_pin_mode(<\/span>LED_ROUGE,<\/span>IOPORT_MODE_INVERT_PIN)<\/span>;<\/span>\t\t\/\/Inverse la commande de la pin  <\/span>\r\n\u00a0\r\n\tioport_set_pin_dir(<\/span>BOUTON,<\/span> IOPORT_DIR_INPUT)<\/span>;<\/span>\t\t\t\/\/BOUTON en entr\u00e9e<\/span>\r\n\tioport_set_pin_mode(<\/span>BOUTON,<\/span>IOPORT_MODE_INVERT_PIN)<\/span>;<\/span>\t\t\/\/Inverse l'\u00e9tat de la pin<\/span>\r\n\u00a0\r\n\twhile<\/span>(<\/span>1<\/span>)<\/span>\r\n\t{<\/span>\r\n\t\tif<\/span>(<\/span>ioport_get_pin_level(<\/span>BOUTON)<\/span>)<\/span>\t\t\/\/Appui sur le bouton<\/span>\r\n\t\t\tioport_set_pin_level(<\/span>LED_ROUGE,<\/span>1<\/span>)<\/span>;<\/span>\t\/<\/span>Allume la LED\r\n\t\telse<\/span>\t\t\t\t\t\t\/\/Relachement du bouton<\/span>\r\n\t\t\tioport_set_pin_level(<\/span>LED_ROUGE,<\/span>0<\/span>)<\/span>;<\/span>\t\/\/Eteind la LED\t\t<\/span>\r\n\t}<\/span>\r\n}<\/span><\/pre>\n<\/div>\n","protected":false},"excerpt":{"rendered":"
La derniere version de ce tuto est disponible sur le WIKI ASF Atmel Software Framework Introduction ASF est un framwork developp\u00e9 pour faciliter le d\u00e9veloppement de vos applications. Ajouter une librairie Aller dans ASF \u2192 ASF Wizard Dans project, s\u00e9lectionner… Continuer la lecture →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":26,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-58","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-electronique"],"_links":{"self":[{"href":"https:\/\/www.jelectronique.com\/index.php?rest_route=\/wp\/v2\/posts\/58","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jelectronique.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.jelectronique.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.jelectronique.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.jelectronique.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=58"}],"version-history":[{"count":4,"href":"https:\/\/www.jelectronique.com\/index.php?rest_route=\/wp\/v2\/posts\/58\/revisions"}],"predecessor-version":[{"id":103,"href":"https:\/\/www.jelectronique.com\/index.php?rest_route=\/wp\/v2\/posts\/58\/revisions\/103"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jelectronique.com\/index.php?rest_route=\/wp\/v2\/media\/26"}],"wp:attachment":[{"href":"https:\/\/www.jelectronique.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=58"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.jelectronique.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=58"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.jelectronique.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=58"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}