NetMedia 2X16 LCD

[young]

Anyone has used NetMedia 2X16 LCD using CCS. I currently have one , and I want to use it, but do not know how. It just use one wire communication RX. but I could not get it work. here is my program

[young]

It is a serial LCD, any suggestions or code please?

[PCM programmer]

Well how about using Google ?

If I go to Google, and search for NetMedia 2X16 LCD, I get the manual for the device:
http://www.basicx.com/Products/SLCD/ser2x16.pdf

I also get sample code for Basic Stamp 2, from Peter H. Anderson,
a well-known professor in the Pic community.
http://www.phanderson.com/basicx/lcd_2x16_bs2.html

By studying that code, I can see that before he uses the LCD,
he calls two routines:

LCDSetGeometry
and
LCDReset

When I look at those routines, I see that they use the Serout command.
I can see that it uses 9600 baud, so I know to set my #use rs232()
statement in CCS for 9600 baud also.
I can see that the LCDSetGeometry function has 6 data bytes that must
be sent: 15, 16, $80, $c0, $80, $80
So I could do this by using the CCS putc() command, because it sends
a single byte out the RS232 pin. Like this:

putc(15);
putc(16);
putc(0x80);
putc(0xc0);
putc(0x80);
putc(0x80);

For LCDReset function, I must send one byte (14), and then delay
for 1000 ms. So this would work:
putc(14);
delay_ms(1000);

There may be other details that are important. You can use Google
to find more documents on the LCD and study them.

[John Morley]

Hi,

Also, are you sure you've connected to the pin you specify in your code, and are you sure the connections to the LCD are correct? Do you have a scope to put on the data output pin from the PIC to see if any data is being sent??

John
_________________
John Morley

[young]

I saw the code in Basic, and am trying to undertstand it. If there is already one sample, it will be great.

I believe that I connected pins correctly.

I will try to find it out, anyway!

[young]

what does
sewrout TXPin, N9600,10, [12]
number 10 means?

is it right if I define function as

[PCM programmer]

If you use Google, and type in SEROUT, then you get this as the
top link:
http://www.parallax.com/dl/docs/cols/nv/vol1/col/nv16.pdf

It tells you the format of the Serout command:

Serout tpin, baudmode, {pace,} [output data]

It says the "pace" parameter is the number of milliseconds
between characters. So, if your example has "10", then
that's a 10 ms delay. You can do this with CCS like this:

putc(12);
delay_ms(10);


If you have several characters for "output data", then
put a delay_ms(10); statement after each putc() statement.
This will do the same thing as the Serout command.

[young]

Thank you very much

as of my code

[PCM programmer]

Yes, it looks like you have properly translated the Basic Stamp 2 function to C.

[young]

Thank you:

I put this together for a test, but I hust see "||||||||||" on my screen. what might happened?

[PCM programmer]

[Guest]

Thank you PCM:
I just came back to work. I will work on it till I solve.


I put the "INVERT" there, but still not signal at all.

[Guest]

and My chip become so hot, I am afraid it burned. but I still have several spare one. I will keep trying.

[Guest]

When I remove Invert, the ||| bar comes back again, When I use INVERT it becomes hot. Do you think I should use RS232 to try, I will and let you know.

[Guest]

I connected RS232 between 16f819 and LCD RX, just some strange character, mostly japanese character., Any suggestions?