LCD problem with ATmega16 and CVAVR

Well, I'm attempting to use an LCD-module with ATmega16 -controller. I
met a confusing
problem. I'm programming with CodeVisionAVR, which has a library of lcd
functions.

When I wrote into main program:

lcd_gotoxy(0,0);
lcd_putsf("hello world");

That resulted perfectly correct displaying of text "hello world" on the
LCD, so
the lcd and its connections seem to be ok.

BUT when I attempted to use lcd_putchar -function, which should display
the value of
a variable, a problem occured. So firstly, I declared a global variable
h and set it
to 1, by writing at the beginning of the code:

int h=1;

Then attempted to get it displayed by writing into the main program:

lcd_gotoxy(0,0);
lcd_putchar(h);

But the "1" didn't get displayed. Instead, it displays || -looking
character.
As well did many other values of h, and some values displayed as |||
-character.

I also tried changing the data type of the h from int to char and
unsigned char,
but with same results. What might be wrong?

 

Try instead:

int h = '1';

 

Rich Webb a écrit :

Or
char h = 0x30 + 1;

 

Thanks a lot! That did it