Search found 14 matches

Hello,
I wrote a part of code and I don't know how many times it takes.
I cannot use a timer because I want to use this function while 10 seconds, then I use an another function.

#include "1 ...

I think I succeed to write a character into the CGRAM.
void lcd_define_custom_char ()
{
//define what's a pixel
int pixel[1][8] = {{128,128,128,128,1 ...

Hello,
I need to complete my driver for lcd with ST7920 controler.
I would like to set a pixel on with a XY position in order to trace line and circle.

In the [url=http://www.pic16.com/soft/1286 ...

Were you using a -04 or -10 PIC (4 MHz or 10 MHz) ?
-04
So I think the driver may work with a 20MHz crystal, it will be useful if someone else bought the QL_200 development board and need a driver f ...

I've found why it doesn't work !!!
My pic 16f876 doesn't support 20MHz crystal (contrary to mentioned in datasheet)...

a simply program like this one doesn't work:
void main()
{
in ...

I found delay in output_high(e); //enable.
output_low(e); //disable.

enable width will be longer than 140ns.

I really don' ...

Ok, I've done this changement.
but it was first:

void delay()
{
int i=0;
while(i<50)
{
i=i+1;
}
with my 4MHz crystal. I've replaced it by delay_ms(2), you ...

Hello,
My driver work finally well:
#include <16f876.h>
#use delay (clock = 20000000)

#define rs PIN_A5 //COMMNAD/DATA SELECT
#define rw PIN_A4 ...

Thanks the compilation work (it just missed two } in the end of your code ).
But I don't understand how the compiler make the link between graphics.c which allow to display circle, rectangle and othe ...

Hello, I finally try to find a driver and just modify it.
I've found this one:
http://www.ccsinfo.com/forum/viewtopic.php?t=32819&highlight=st7920

But when I try to compile it, I've many erro ...

Hello again.
I've received my QL200 development board and there is one cd into the box.
In the CD there is one file which look like a driver.
//THE experiment is to familiarity the use of 12864LCD ...

Ok thanks.
I will try it and modify it in consequence.

In your document, it's wrote that it use PORT A as control bit and PORT D as data bit.

thanks again.

Hello,
My family has recently offers to me [url=http://www.pic16.com/en/wzcapi/ql200.htm] the development board QL200 for my birthday.

I've in my possession the CCS compiler and I would like to k ...