Probleme Ecriture port serie, quel code envoyer

Bonjour,
Actuellement en école d'ingénieur, dans un projet pour une entreprise, je dois réaliser un VI permettant la lecture de données d'un capteur (thermocouple) sur lequel un microcontroleur a été gréffé, puis par la suite on souhaite envoyer des informations au capteur pour pouvoir modifier son gain, son offset.
Mon problème se situe au niveau de l'envoie d'information.
L'entreprise travaillait sous hyperterminal. Lorsque que le capteur envoyait les informations, il suffisait d'appuyer sur la touche "a" du clavier pour selectionner le paramêtre à modifier, appuyer ensuite sur "p" pour augmenter ce paramêtre et enfin appuyer sur "echap" pour valider cette modification et sortir du paramétrage.
Ma question est donc, comment dois envoyer l'information sous labview afin de simuler l'appui sur les touches "a" puis "p" puis "echap".
Dans un premier temps j'ai pensé a utilisé le code ASCII des touches du clavier, mais cela ne marche toujours pas
note; le paramêtre associé à la touche "a" est l'offset du capteur.
Je vous laisse en pièce jointe mon VI.
Merci de votre aide !
Résolu !
Accéder à la solution.
Pièces jointes :
port serie ecriture(modif11).vi ‏85 KB

Je ne peux pas ouvrir ton code, pas ta version de LabVIEW sur mon PC.
Je te propose quelques pistes :
> hyperterminal configure le port série (parité, vitesse, ….) tu fais de même, via VISA Open ?
> il y a peut-être un caractère de fin de commande (CR, LF, …) à ajouter,
> tu utilises la fonction VISA Write, un des paramètres d’entrée est une chaîne de caractère, ton idée de câbler une constante string « a » ou « p » me semble correcte.
Je pense donc que ton problème provient de la configuration du port ou d’un caractère de fin de commande ou réception.
Luc Desruelle | Voir mon profil | LabVIEW Code & blog
Co-auteur livre LabVIEW : Programmation et applications
CLA : Certified LabVIEW Architect / Certifié Architecte LabVIEW
CLD : Certified LabVIEW Developer / Certifié Développeur LabVIEW

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