Svenska ElektronikForumet

Kod: Markera allt

#include <pic.h>
#include <htc.h>
#include "lcd.h"
#include "delay.h"


__CONFIG(INTIO & WDTDIS & PWRTDIS & MCLRDIS & UNPROTECT & BORDIS & IESODIS & FCMDIS);
char buffer[52];	//Databuffer
int index = 0; 

void usart(void){
	TRISB = 0XFF;
	TRISC = 0X00;	//Just for debug
	PORTC = 0;		//-||-
	ANSELH = 0x00; 	//All pins digital
	SPBRG = 52;		//4800 bps
	BRGH = 1;
	TXEN = 1; 		//Allows sending
	SYNC = 0; 		//The SYNC bit should be cleared to select asynchronous operation.
	SPEN = 1; 		//SPEN bit is used to enable the entire serial port
	CREN = 0;
	CREN = 1; 		//Allows receiving
	
	GIE = 1;  		//*Interrupts
	PEIE = 1;
	TXIE = 0; 		//Disable transmit interrupt
	RCIE = 1; 		//Enable receive interrupt

}

static void interrupt isr(void){	
	if((RCIE)&&(RCIF)){

		if(OERR){       // If overun-error has occured                  
			CREN=0;     // Re-enable receiving           
			CREN=1;     
        }  
		 
		char r = RCREG;
		
		
			buffer[index] = r;  //Place received byte in buffer
			index++;			//Increment index
		
	}       

}

void main(void){
 	lcd_init();
	lcd_clear();
	lcd_posyx(0,0);
	usart();							//Initialize USART
	while(1){							//Do forever
		if(index>=15){		
			CREN = 0;				//Stop receiving 
			
			for(int i = 0; i <= index-1; i++){  //Print buffer
		
				lcd_data(buffer[i]);
	
			}
			DelayMs(1000);
			lcd_clear();
			lcd_posyx(0,0);
			index = 0;							
			CREN = 1;			//Start receiving again
		
		}
	}
}