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mkr
Joined: 08 Aug 2006
Posts: 49
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| Help on T6963C LCD controller |
 Posted: Thu Mar 29, 2007 7:14 am |
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Hello All,
I asked a dum question earlier on sending a string "ABC" to T6963C based LCD.
I am using the driver now. I simply wanted to send "ABC" using the glcd_putc("ABC");, seems that the
argument of the function is a character type. How can I then send a string.
Are there bits and peices of the code not posted or si the whole code posted.
My MCU is dsPIC30F6014a and LCD is 240x128 pixel. I have selected 8x8 font size and CE is always tied to low.
Here is the code snippet.
Code:
| Code: |
int main(void)
{
init_io();
glcd_init();
glcd_WriteByte(1, (LCDModeSet|LCDMode_XOR));
glcd_WriteByte(1, (LCDDispMode|LCDDisp_TXT|LCDDisp_GRH));
glcd_gotoxy(4,3,1); // 1 = text area of memory; note that there are only
// 16 rows of text possible
glcd_putc("ABC");
} //End of main()
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help please
_________________
Thanks
mkr |
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treitmey
Joined: 23 Jan 2004
Posts: 1094
Location: Appleton,WI USA
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| Posted: Thu Mar 29, 2007 8:26 am |
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The compiler will((magically)) take a function that accepts a char, and make a loop for you that will call it multiple times for a string. so..
to print a string you
| Code: | glcd_WriteCmd0(AutoModeReset);
glcd_WriteCmd0(LCDDispMode | LCDDisp_TXT| LCDDisp_GRH);
printf(glcd_putc,"Good Morning!"); |
This has the printf using the glcd_putc function.. and it would normally
take just a single char.. but the compiler puts in a loop that calls
glcd_putc once for EVERY char in "Good Morning!" string.
Also look at C:\Program Files\PICC\Examples\EX_LCDKB.C
and C:\Program Files\PICC\Drivers\LCD.C
see how lcd_putc just takes a single char but in the example it is
given a string and works on with it. This may not be the case for future compilers. |
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