Serial communication via USB device
Moderators: FourthWorld, heatherlaine, Klaus, kevinmiller, robinmiller
Serial communication via USB device
I have a Matrix orbital LCD module attatched to a USB-I2C translation module. This is plugged into a USB port on my Windows box. I have a piece of driver software for the translation module installed on my box. This driver makes the USB interface look like a regular serial port.
With other demo software I have proved to myself that this setup works.
However, I do not seem to be able to communicate with the LCD using RR.
Here is the code I am using;
open driver "com7:" for update
put the result into field "fldMsg"
#following are dec values for I2C control of Matrix orbital LCD (clear screen)
write numtochar(80) to driver "com7:"
write numtochar(254) to driver "com7:"
write numtochar(88) to driver "com7:"
close driver "com7:"
There is a small led on the translation module that flashes with the demo software but does not with the RR code.
Any ideas?
Jeff
With other demo software I have proved to myself that this setup works.
However, I do not seem to be able to communicate with the LCD using RR.
Here is the code I am using;
open driver "com7:" for update
put the result into field "fldMsg"
#following are dec values for I2C control of Matrix orbital LCD (clear screen)
write numtochar(80) to driver "com7:"
write numtochar(254) to driver "com7:"
write numtochar(88) to driver "com7:"
close driver "com7:"
There is a small led on the translation module that flashes with the demo software but does not with the RR code.
Any ideas?
Jeff
Chat with other RunRev developers, pop over to www.bjoernke.com/runrev/chatrev.php
Hi Jim
Yes I have "solved" this issue. Solved as in still early days with run rev code but at least I have proven that communication is possible using a virtual serial port over a USB cable in Win XP.
If you want more please post a question and I will try and help.
Jeff
Yes I have "solved" this issue. Solved as in still early days with run rev code but at least I have proven that communication is possible using a virtual serial port over a USB cable in Win XP.
If you want more please post a question and I will try and help.
Jeff
Chat with other RunRev developers, pop over to www.bjoernke.com/runrev/chatrev.php
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Re: Serial communication via USB device
I am the owner of a Valiant Roamer 2
http://www.roamer-educational-robot.com/
So . . . the Roamer has a USB connector (meaning it has a USB port to connect to a PC, and at the other end of
the cable a highly individual connector to connect to the Roamer.
except:
1. How do I determine what driver to open (as there is NO driver as such for the Roamer)?
2. What is the difference between 'open driver' and a USB port?
3. How on earth do I understand what signals to send to the Roamer if I get that far?
http://www.roamer-educational-robot.com/
So . . . the Roamer has a USB connector (meaning it has a USB port to connect to a PC, and at the other end of
the cable a highly individual connector to connect to the Roamer.
except:
1. How do I determine what driver to open (as there is NO driver as such for the Roamer)?
2. What is the difference between 'open driver' and a USB port?
3. How on earth do I understand what signals to send to the Roamer if I get that far?