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transfering data to LCD via I2C

 
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PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Fri Mar 17, 2006 1:49 pm     Reply with quote
Use printf to convert to ASCII. Use the re-direction feature of the CCS
printf() function to send the output to your lcd driver. Example:

Code:

#include <16F877.H>
#fuses XT, NOWDT, NOPROTECT, BROWNOUT, PUT, NOLVP
#use delay(clock=4000000)
//#use rs232(baud=9600, xmit=PIN_C6, rcv=PIN_C7, ERRORS)

#include <lcd.c>

//===============================
void main()
{
float value;

lcd_init();

value = 1.243;

printf(lcd_putc, "%7.3f", value);

while(1);
}
croc4



Joined: 02 Sep 2005
Posts: 10

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Thank you!!!
PostPosted: Fri Mar 17, 2006 2:11 pm     Reply with quote
Thanks, the printf, did the trick. I didn't know you could do that, I have a lot to learn.

Thanks again,

Croc4
gs



Joined: 22 Aug 2005
Posts: 30
Location: Ioannina - Greece

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PostPosted: Sat Mar 18, 2006 7:52 pm     Reply with quote
You could also multiply with 1000 and print the result as 1000's,".",100's,10's,1's

If you want to avoid use of floats you could modify the calculations this way.
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