Pues Gracias por el dato pocher, efectivamente ya no marca el error, aunque sigo un poco confundido de porque no funciona.
Compila bien pero no aprace nada en el display. les pido paciencia y espero puedan ver el error que estoy cometiendo.
este es el programa que uso para hacer la prueba.
#include <16F874A.h>
#use delay(clock=4000000)
#use rs232(baud=9600)
#include <LCDC2.C>
void main()
{
lcd_init();
printf("hola"
![Giño]( "Giño")
;
}
y esta es la libreria como quedo ya con la modificacion:
// The six bus pins are defined here.
// this example happens to use PIC port B3, B4, B5, B6 for LCD data
// and port B5 for LCD ENABLE and port B6 for LCD RS.
#define LCD_D4 PIN_B4
#define LCD_D5 PIN_B5
#define LCD_D6 PIN_B6
#define LCD_D7 PIN_B7
#define LCD_EN PIN_B2
#define LCD_RS PIN_B3
// misc display defines
#define LINE_1 0x00
#define LINE_2 0x40
#define CLEAR_DISP 0x01
// prototype statements
#separate void LCD_Init ( void );
#separate void LCD_SetPosition ( unsigned int cX );
#separate void LCD_PutChar ( unsigned int cX );
#separate void LCD_PutCmd ( unsigned int cX );
#separate void LCD_PulseEnable ( void );
#separate void LCD_SetData ( unsigned int cX );
// whatever pins you assign to the display
// MUST be in a bus that is a CCS type "standard_io".
#use standard_io ( A )
#use standard_io ( B )
#use standard_io ( C )
/*/ code start here
void main ( void )
{
char cX;
cX = 1; // set number
LCD_Init(); // set up LCD for 4-wire bus, etc.
LCD_PutCmd ( CLEAR_DISP ); // clear screen
LCD_SetPosition ( LINE_1 + 0 ); // set line and offset on line
printf ( LCD_PutChar, "Test #%u", cX ); // display message
LCD_SetPosition ( LINE_2 + 5 ); // set line and offset on line
printf ( LCD_PutChar, "2nd test" ); // display message
while ( 1 ); // stop
}*/
/* SIX LCD-SPECIFIC FUNCTIONS ARE BELOW============================== */
#separate void LCD_Init ( void )
{
LCD_SetData ( 0x00 );
delay_ms ( 200 ); /* wait enough time after Vdd rise */
output_low ( LCD_RS );
LCD_SetData ( 0x03 ); /* init with specific nibbles to start 4-bit mode
*/
LCD_PulseEnable();
LCD_PulseEnable();
LCD_PulseEnable();
LCD_SetData ( 0x02 ); /* set 4-bit interface */
LCD_PulseEnable(); /* send dual nibbles hereafter, MSN first */
LCD_PutCmd ( 0x2C ); /* function set (all lines, 5x7 characters) */
LCD_PutCmd ( 0x0C ); /* display ON, cursor off, no blink */
LCD_PutCmd ( 0x01 ); /* clear display */
LCD_PutCmd ( 0x06 ); /* entry mode set, increment & scroll left */
}
#separate void LCD_SetPosition ( unsigned int cX )
{
/* this subroutine works specifically for 4-bit Port A */
LCD_SetData ( swap ( cX ) | 0x08 );
LCD_PulseEnable();
LCD_SetData ( swap ( cX ) );
LCD_PulseEnable();
}
#separate void LCD_PutChar ( unsigned int cX )
{
short cSkip;
/* this subroutine works specifically for 4-bit Port A */
if ( !cSkip )
{
output_high ( LCD_RS );
LCD_SetData ( swap ( cX ) ); /* send high nibble */
LCD_PulseEnable();
LCD_SetData ( swap ( cX ) ); /* send low nibble */
LCD_PulseEnable();
output_low ( LCD_RS );
}
}
#separate void LCD_PutCmd ( unsigned int cX )
{
/* this subroutine works specifically for 4-bit Port A */
LCD_SetData ( swap ( cX ) ); /* send high nibble */
LCD_PulseEnable();
LCD_SetData ( swap ( cX ) ); /* send low nibble */
LCD_PulseEnable();
}
#separate void LCD_PulseEnable ( void )
{
output_high ( LCD_EN );
delay_us ( 3 ); // was 10
output_low ( LCD_EN );
delay_ms ( 3 ); // was 5
}
#separate void LCD_SetData ( unsigned int cX )
{
output_bit ( LCD_D4, cX & 0x01 );
output_bit ( LCD_D5, cX & 0x02 );
output_bit ( LCD_D6, cX & 0x04 );
output_bit ( LCD_D7, cX & 0x08 );
}
