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Ernestoide
11-23-2010, 03:43 AM
Hi

I tried to find any source that explain how to use the USB controller using Visual Basic without success. I'm trying to write a program similar to the PSC interface for the USB servo controller and unfortunately I can't really find what I'm doing wrong. Some sample source code will be very helpful.

I'm using VB5 on Windows XP and the propeller USB controller.

Thanks

wjsteele
11-23-2010, 10:41 AM
I'm not familar with the Servo Controller, but I'm guessing that it's actually a serial interface. When you plug that device in, it should show up as a serial port on your comptuer.

With that, you can then use simple Serial I/O with the MS Comm Control to access it.

Bill

Ernestoide
11-23-2010, 05:25 PM
Thanks for your reply.

I actually can talk with the USB controller. I'm using a Comm object and sending the messages is not the issue. The problem is the format of the message, the USB controller has a firmware that read the commands from the serial port and translate them in servo actions. I guess what I really need is a sample on how to format the messages.

Thanks

E

Ernestoide
11-24-2010, 06:13 PM
Update

I was able to talk to the servo and make it move but I can not understand the format for the High and Low bytes for servo positioning.

Thanks