VISA - USB - viRead Error

[dieter_1]

Hi !

I've got a problem, with my VISA:RAW USB Connection. I can establish a connection an send Data with the VISA Write VI. Without any Problem. The Problem is, I can't send any information. 

I've done a NI-Spy and would be pleased if anyone could me explain the arguments in the viREad file. Which is the red failed one. 🙂

I can only speculate and don't know where to get the Information.

I'm Using the USB-Port and an NXP LPC2368Controller to communicate with.

[dieter_1]

no one, any idea ????

- does viRead only function with Control-Transfers ??

- Do I have to use two different Endpoints at the Controller, which would be not good, because HID - Interrupt functions only with 1 endpoint.

- perhaps I have to use the USB-VI's but these don't work with my settings wich I have from the HID 1.1

anything ????? :womanvery-happy:

[Christian Mergl]

Hey,

Maybe the following KB can give you some hints: http://digital.ni.com/public.nsf/allkb/457E3ADD7D2C1E7486257323007BAC0D?OpenDocument

Regards,

Christian