EmbeddedRelated.com
Forums
Memfault Beyond the Launch

communication between PC and LED display

Started by monika August 4, 2008
I am using a LED display which has following specifications:

TFI-32x128-37RG 4.76mm Tri-color RS232/Ethernet   6.9"x26.22"x2" 4
lines of English

I have connected it to PC com port and want to send data through the
port.
But when I use hyperterminal to send some data on the LED board, it is not
responding. 
Is it possible to send data through hyperterminal on LED board?
Or is there any other method to display data on LED board through PC com
port?


On Mon, 04 Aug 2008 08:14:06 -0500, "monika" <monika.varshney@gmail.com>
wrote:

>I am using a LED display which has following specifications: > >TFI-32x128-37RG 4.76mm Tri-color RS232/Ethernet 6.9"x26.22"x2" 4 >lines of English > >I have connected it to PC com port and want to send data through the >port. >But when I use hyperterminal to send some data on the LED board, it is not >responding. >Is it possible to send data through hyperterminal on LED board?
Presumably, yes, if you're using the right baud and character settings (bits/character, parity, stop bits). However, the interactions between Hyperterminal, RTS/CTS, DSR/DTR, and the LED board may also be an issue. You might want to try TeraTerm http://en.wikipedia.org/wiki/TeraTerm
>Or is there any other method to display data on LED board through PC com >port?
I assume you've reviewed the documentation available at http://support.favotech.com/ ? -- Rich Webb Norfolk, VA
monika wrote:
> I am using a LED display which has following specifications: > > TFI-32x128-37RG 4.76mm Tri-color RS232/Ethernet 6.9"x26.22"x2" 4 > lines of English > > I have connected it to PC com port and want to send data through the > port. > But when I use hyperterminal to send some data on the LED board, it is not > responding. > Is it possible to send data through hyperterminal on LED board? > Or is there any other method to display data on LED board through PC com > port? >
As Rich wrote, you need to find out what baud rate, start/stop bits and hardware handshakes this display expects. This information should be in the booklet that came with it or maybe online at the manufacturer's site. Not to spoil the broth here but there can also be electrical discrepancies. For example one of the laptops here has a hard time driving some RS232 devices. A voltmeter revealed it: The laptop only sends a 6V level and some devices don't seem happy with that (although per standard they should). -- Regards, Joerg http://www.analogconsultants.com/ "gmail" domain blocked because of excessive spam. Use another domain or send PM.
Joerg wrote:
> monika wrote: >> I am using a LED display which has following specifications:
How about RTFM: http://support.favotech.com/ http://support.favotech.com/protocol.specs.2.4.jetfile.pdf
>> >> TFI-32x128-37RG 4.76mm Tri-color RS232/Ethernet 6.9"x26.22"x2" 4 >> lines of English >> >> I have connected it to PC com port and want to send data through the >> port. >> But when I use hyperterminal to send some data on the LED board, it is >> not >> responding. Is it possible to send data through hyperterminal on LED >> board? >> Or is there any other method to display data on LED board through PC com >> port? >> > > As Rich wrote, you need to find out what baud rate, start/stop bits and > hardware handshakes this display expects. This information should be in > the booklet that came with it or maybe online at the manufacturer's site. > > Not to spoil the broth here but there can also be electrical > discrepancies. For example one of the laptops here has a hard time > driving some RS232 devices. A voltmeter revealed it: The laptop only > sends a 6V level and some devices don't seem happy with that (although > per standard they should). >

Memfault Beyond the Launch