> ... What is the baud rate to the LCDX Monitor and
Downloads are at 115200. If you choose to use COM1 for I/O in your project, it
will be used for downloads after compiling a project - and it will carry your
COM1 data during execution. You can use the Monitor port in the IDE to see that
data; set its speed to match the speed you choose in your project. I just
loaded the DoorLock demo project and see that it doesn't put any data on
> ... What kind of handshaking do the LCDX ports
None. The IDE does, however, toggle DTR (ATN at the LCDX end) to start and stop
the LCDX and to initiate downloads.
> ... Does the LCDX use a null cable?
No, you can plug the DB9M on your USB-RS232 adapter, or a female-to-male serial
extension cable from it, into the DB9F on the LCDX.
> ... Is the LCDX a BX24 or BX35 because the forum
provided conflicting information?
It uses a BX35 whose I/O is dedicated to specific functions and pins on the
LCDX. File LCDXLib.bas, supplied on the CD and available on the Netmedia web
site, describes the I/O assignments and provides functions to use the display
Posted by merogman2004●June 3, 2011
I received the LCDX in the mail about a week ago. After careful research I
chosed the LCDX because I didn't have the time to write and troubleshoot low
level code to get visual feedback. For a lack of an "Getting Started" for the
LCDX I turned to this forum for hints, clues and answers.
The first 8 hours was trying to figure out where this "Lab Door 2 is Locked
Enter Code > <" came from and why it wasn't addressed in the Literature. I
expected a demo program. I had it connected to the laptop and I couldn't
download to it. Eventually, I wired up the keypad and found some numbers to put
in it for activation. Then it came back.
The second 8 hours was spent pouring over all the supplied and downloaded
literature and researching this forum again for some insight. Maybe the problem
was my win 7 USB to serial cable converter (Win 7 is a story and endeavor in
itself). The USB to serial converter was working fine. Maybe it was the new
serial cable. The cable was working fine. All this time I duplicated my efforts
in 9600 and 19200 baud.
All this time I have been removing and returning power to the LCDX for the lack
of a reset function on the LCDX, which is a very hazardous practice to do in
The third 8 hours was spent trying everything suggested on this forum for LCDX.
Nothing worked to allow me to stop the LCDX and download a program. I took out
the digital meter and measure the 12 volt supply to the LCDX. It measured 11.03
volts at the plug, unconnected to the LCDX. Next I went to the 7-12 volt pad
and measured 8.23 volts. I then measured the 5 volt supply and it measured 4.98
volts. I finally went to the ATN Diagnostic and was able to toggle 6.10 volts
as a high and -6.23 volts as a low, repeatedly measured at the LCDX pins. I
then checked my serial cable and it is a straight serial cable and not a null
modem serial cable. Pin 3 on the 9 db connector (center pin) ohms out the other
end (center pin).
My questions are:
What is the baud rate to the LCDX Monitor and Download ports?
What kind of handshaking do the LCDX ports use?
Does the LCDX use a null cable?
Is the LCDX a BX24 or BX35 because the forum provided conflicting
Is there a probability that my LCDX is defective?
How do I halt the LCDX and download a program to it?
Help, I have one eye above water and I see a log with eyes swimming my way...