Subject:
|
FW: IR transmission from legOS?
|
Newsgroups:
|
lugnet.robotics
|
Date:
|
Thu, 1 Apr 1999 03:50:58 GMT
|
Viewed:
|
1140 times
|
| |
|
|
Kay wrote:
> I can't seem to transmit data via IR from the RCX to the desktop.
> This works neither from the code that I wrote, nor from the
> tm-and-ir demo that's part of the legOS distribution. Let me
> describe in more detail what happens with the tm-and-ir demo.
> Transmission from the desktop to the RCX works fine, I see all
> characters displayed in the RCX LED window. But I don't see
> the "hello world" message on my desktop screen, when I press
> the "View" button. What's worse, the attempted transmission
> of "hello world" messes up the connection such that I can't
> even send chars from the desktop to the RCX anymore. Note:
> baud rate, parity, stop bits and char size are set correctly,
> as evident by the initially enabled transmission to the RCX.
Let me try to help here...
1. What program are you using to communicate with the RCX? If its
HyperTerminal (bundled with win95/98) then once in a while the
RCX tower or the program gets confused and you have to reopen
the profile you saved as RCX-COMM (or whatever)
2. Is the green light in the RCX tower on when you press VIEW?
If not, then there is no way for the terminal program to figure
out what the RCX is sending you, since the tower is off. To verify
this, press any key in your terminal program and watch the light
go on. Don't touch any more keys and the light will turn off.
3. To fix 2, you need to feed the RCX tower with characters so
that it knows to keep looking for the RCX messages.
Hmmm, I KNOW this is done to conserve power in tower, but what if
some fearless soul figured out how to disable this "feature"???
Cheers,
Ralph Hempel - P.Eng
--------------------------------------------------------
Check out pbFORTH for LEGO Mindstorms at:
<http://www.bmts.com/~rhempel/lego/pbFORTH/default.html>
--------------------------------------------------------
Reply to: rhempel at bmts dot com
------------------------------------------------------
|
|
1 Message in This Thread:
- Entire Thread on One Page:
- Nested:
All | Brief | Compact | Dots
Linear:
All | Brief | Compact
|
|
|
|
Active threads in Robotics
|
|
|
|
|
|
