Debugger/Dev Tool

#include <p18cxxx.h>
#include <stdio.h>
#include <delays.h>
#include <spi.h>

#pragma config WDT = OFF, LVP = OFF, OSC = HS
/***********************************
      Prototypes / Defines
***********************************/
void initSPI(void);
void e_togg(void);
void lcd_line(char line);
void lcd_cmd(unsigned char letter);
void lcd_char(unsigned char letter);
void lcd_string(char *senpoint);
void lcd_init(void);
void delay_ms(int ms);
void delay_us(int us);
void delay_s(int s);
void lcdByte(unsigned char dNyb,unsigned char rs);
char RTCRegRead(char adx);
void RTCRegWrite(char adx, char data);

#define CS LATCbits.LATC2
#define CS_T  TRISCbits.TRISC2
#define SCL_T TRISCbits.TRISC3
#define SDA_T TRISCbits.TRISC4
#define SDO_T TRISCbits.TRISC5

#define LCD_DAT_T TRISCbits.TRISC0
#define LCD_CLK_T TRISCbits.TRISC1

#define LCD_DAT LATCbits.LATC0
#define LCD_CLK LATCbits.LATC1

#define LCD_E_T TRISCbits.TRISC6
#define LCD_E   LATCbits.LATC6

char string[] = "                ";
unsigned char time[16];
/***********************************
            Main
***********************************/
void main(void){
    unsigned char tmp,tmp2;
    unsigned char buff[40];
    char i;

    ADCON1 = 0x0E;

    initSPI();
	lcd_init();

	lcd_line(1);
	sprintf(string,"  AtomSoftTech",0);
	lcd_string(&string);

	lcd_line(2);
	sprintf(string," 2-Wire 74LS164",0);
	lcd_string(&string);

    delay_s(3);

	lcd_line(2);
	sprintf(string,"  DS1306 TEST.  ",0);
	lcd_string(&string);

    delay_s(3);

    RTCRegWrite(0x80,0x00);
    RTCRegWrite(0x81,0x32);
    RTCRegWrite(0x82,0x66);
//0x00
//0x23
//0x56


    while(1){

    tmp = RTCRegRead(0x02);
    time[15] = (tmp >> 4) & 0x02;

    if(time[15] == 0) 
        time[15] = 'A' ;
    else 
        time[15] = 'P';

    time[14] = 0x20;

    tmp = RTCRegRead(0x00);
    time[13] = (tmp & 0x0F) + 0x30;
    time[12] = ((tmp >> 4) & 0x0F ) + 0x30;
    time[11] = ':';

    tmp = RTCRegRead(0x01);
    time[10] = (tmp & 0x0F) + 0x30;
    time[9] = ((tmp >> 4) & 0x0F ) + 0x30;
    time[8] = ':';

    tmp = RTCRegRead(0x02);
    time[7] = (tmp & 0x0F) + 0x30;
    time[6] = ((tmp >> 4) & 0x01 ) + 0x30;

    time[5] = 0x20;
    time[4] = ':';
    time[3] = 'e';
    time[2] = 'm';
    time[1] = 'i';
    time[0] = 'T';

	lcd_line(2);
	lcd_string(time);

    delay_ms(100);

    }
}


char RTCRegRead(char adx){
    char tmp;
    CS = 1;
        WriteSPI(adx); //sec
        tmp = ReadSPI();
    CS = 0;

    return tmp;
}

void RTCRegWrite(char adx, char data){
    CS = 1;
    WriteSPI(adx);
    WriteSPI(data);
    CS = 0;
}
void initSPI(void){
    CS_T = 0;       //CS is output
    SCL_T = 0;      //SCL is output
    SDA_T = 1;      //SDA is input
    SDO_T = 0;      //SDO is output

    OpenSPI(SPI_FOSC_4,MODE_10,SMPEND);         //[b]Had to change to SMPEND[/b]

    CS = 1;
        WriteSPI(0x8F);
        WriteSPI(0x00);
    CS = 0;

}

void lcd_string(char *senpoint){
    delay_ms(1);
	while(*senpoint != '\0'){
		lcd_char(*senpoint);
		senpoint++;
	}
}
void lcdByte(unsigned char dNyb,unsigned char rs){
	int i;

	LCD_DAT=0;							//Clear 74LS164 set initial bit to 0
	for(i=0;i<8;i++){				    //repeat for 8 bits
		LCD_CLK=1;LCD_CLK=0;			//write 0's to the 164
	}

	for(i=0;i<4;i++){				    //output the nybble
		if((dNyb & 0x08) != 0)
			LCD_DAT=1;
		else
			LCD_DAT=0;

		LCD_CLK=1;LCD_CLK=0;
		dNyb=dNyb<<1;
	}

	LCD_DAT = rs;						    //output the RS bit value
	LCD_CLK=1;LCD_CLK=0;

	LCD_DAT = 0;
	LCD_CLK=1;LCD_CLK=0;
	LCD_CLK=1;LCD_CLK=0;
	LCD_CLK=1;LCD_CLK=0;

	e_togg();
}

void e_togg(void){
	LCD_E=1;LCD_E=0;
}
void clk_togg(void){
	LCD_CLK=1;LCD_CLK=0;
}
void lcd_line(char line){
    if(line == 0x01)
        lcd_cmd(0x80);
    else
	    lcd_cmd(0xc0);
}

void lcd_cmd(unsigned char letter){
	unsigned char temp;
	temp=letter;
	temp=temp>>4;
	lcdByte(temp,0);
	temp=letter;
	temp=temp&0x0f;
	lcdByte(temp,0);
}

void lcd_char(unsigned char letter){
	unsigned char temp;
	temp=letter;
	temp=temp>>4;
	lcdByte(temp,1);
	temp=letter;
	temp=temp&0x0f;
	lcdByte(temp,1);
}

void lcd_init(void){

    LCD_E_T = 0;
    LCD_CLK_T = 0;
    LCD_DAT_T = 0;

	lcdByte(0x03,0);
	delay_ms(5);
	e_togg();
	delay_us(160);
	e_togg();
	delay_us(160);
	lcdByte(0x02,0);
	delay_us(160);
	lcd_cmd(0x28);					//set 4-bit mode and 2 lines
	delay_us(160);
	lcd_cmd(0x10);					//cursor move & shift left
	delay_us(160);
	lcd_cmd(0x06);					//entry mode = increment
	delay_us(160);
	lcd_cmd(0x0d);					//display on - cursor blink on
	delay_us(160);
	lcd_cmd(0x01);					//clear display
	delay_ms(500);
}

void delay_s(int s){
    int y;
    char x;

    for(y=0;y<s;y++)
        for(x=0;x<4;x++)
            delay_ms(250);

}

void delay_ms(int ms){
    int y;

    for(y=0;y<ms;y++)
        Delay1KTCYx(5);
}

void delay_us(int us){
    int y;
    char x;

    for(y=0;y<us;y++)
        for(x=0;x<5;x++)
            Nop();
}