demo.c

Compact Flash library for AVR

/*********************************************
Project : FlashFileSD Example
Version : 1.41
Date    : 12/23/2003
Author  : Erick M Higa    
Company : Progressive Resources LLC       
Comments: 
This is a simple example program for the FlashFileSD


Chip type           : ATmega128
Program type        : Application
Clock frequency     : 14.745600 MHz
Memory model        : Small
External SRAM size  : 0
Data Stack size     : 1024
*********************************************/
#include <iom128.h>
#include "putchar.c"
#include "options.h"

void port_init(void)
{
	PORTA = 0xFF;		DDRA  = 0x00;
	PORTB = 0xFF;		DDRB  = 0xFF;
	PORTC = 0xFF; 		DDRC  = 0x00;	  //m103 output only
	PORTD = 0xFF;		DDRD  = 0x00;
	PORTE = 0xFF;		DDRE  = 0x00;
	PORTF = 0xFF;		DDRF  = 0x00;
	PORTG = 0x1F;		DDRG  = 0x00;
}

//UART0 initialisation
// desired baud rate: 115200
// actual: baud rate:115200 (0.0%)
// char size: 8 bit
// parity: Disabled
void uart0_init(void)
{
	UCSR0B = 0x00; //disable while setting baud rate
	UCSR0A = 0x00;
	UCSR0C = 0x06;
	UBRR0L = 0x07; //set baud rate lo
	UBRR0H = 0x00; //set baud rate hi
	UCSR0B = 0x18;
}


//UART1 initialisation
// desired baud rate:115200
// actual baud rate:115200 (0.0%)
// char size: 8 bit
// parity: Disabled
void uart1_init(void)
{
	UCSR1B = 0x00; //disable while setting baud rate
	UCSR1A = 0x00;
	UCSR1C = 0x06;
	UBRR1L = 0x07; //set baud rate lo
	UBRR1H = 0x00; //set baud rate hi
	UCSR1B = 0x18;
}


//call this routine to initialise all peripherals
void init_devices(void)
{
	//stop errant interrupts until set up
	asm("cli"); //disable all interrupts
	XDIV  = 0x00; //xtal divider
	XMCRA = 0x00; //external memory
	port_init();
	uart0_init();
	uart1_init();

	MCUCR = 0x00;
	EICRA = 0x00; //extended ext ints
	EICRB = 0x00; //extended ext ints
	EIMSK = 0x00;
	TIMSK = 0x00; //timer interrupt sources
	ETIMSK = 0x00; //extended timer interrupt sources
	asm("sei"); //re-enable interrupts
	//all peripherals are now initialised
}


// Declare your global variables here
extern uchar rtc_hour, rtc_min, rtc_sec;
extern uchar rtc_date, rtc_month;
extern uint rtc_year;

schar flash _FF_FNAME[] = "demo.dat";
schar flash ld_str[] = "%03ld, ";
schar flash done_str[] = "\r\n\r\nDONE!!!";
schar flash column_d[] = "Column %d, ";
schar flash Fail_str[] = "\r\nFAILED!!! - %02X";
schar flash __Quote = 0x22;
schar flash WORKING_FOLDER[] = "\\TESTFOLD";
schar flash StartDemoStr[] = "\r\nStarting the Demo!!!";
schar flash CreateFailedStr[] = "\r\n%c%s%c Creation FAILED!!!";
schar flash SDSStr[] = "%s%02d%s";
schar flash CSCStr[] = "%c%s%c\r\n";
schar flash CreatedStr[] = "\r\n%c%s%c Created";
schar flash EOFStr[] = "EOF\r\n";
schar flash C2DStr[] = "%c%02d/";
schar flash p2DSlashStr[] = "%02d/";
schar flash p4DStr[] = "%04d  ";
schar flash p2DColinStr[] = "%02d:";
schar flash p2DCRLFStr[] = "%02d%c\r\n";
extern schar flash __CR;
extern schar flash __LF;

main()
{
	FILE *pntr1;
	ulong c, n;
		
 	init_devices();

  #ifdef _RTC_ON_
	twi_setup();
  #endif

	while (initialize_media()==0)
		;
	
	// Create File
	pntr1 = fcreatec(_FF_FNAME, 0);
	n=0;
	while (pntr1==0)
	{
		if (pntr1==0)
		{
			printf(Fail_str, _FF_error);
			n++;
			if (n & 0xF0)
				return;
		}
		pntr1 = fcreatec(_FF_FNAME, 0);
	}
	
	fputc(__Quote, pntr1);
	fprintf(pntr1, _FF_FNAME);
	fputc(__Quote, pntr1);
	fputc(__CR, pntr1);
	fputc(__LF, pntr1);
	// Write to file
  #ifdef _RTC_ON_
	// if real time clock enabled, get and print time and date to file
	rtc_get_timeNdate(&rtc_hour, &rtc_min, &rtc_sec, &rtc_date, &rtc_month, &rtc_year);
	fprintf(pntr1, C2DStr, __Quote, rtc_month);
	fprintf(pntr1, p2DSlashStr, rtc_date);
	fprintf(pntr1, p4DStr, rtc_year);
	fprintf(pntr1, p2DColinStr, rtc_hour);
	fprintf(pntr1, p2DColinStr, rtc_min);
	fprintf(pntr1, p2DCRLFStr, rtc_sec, __Quote);
  #endif
	
	for(c=0; c<10; c++)
		fprintf(pntr1, column_d, c);
	fprintf(pntr1, __CRLF);
	
	for (c=0; c<100; c++)
	{	// print numbers separated by commas
		for (n=0; n<10; n++)
			fprintf(pntr1, ld_str, (((ulong)c*10)+n));
		if (fputc(__CR, pntr1)==EOF)
			break;			// line feed/carriage return
		if (fputc(__LF, pntr1)==EOF)
			break;			// line feed/carriage return
		PORTB ^= 0x40;
		PORTB ^= 0x80;
	}

	fclose(pntr1);
	printf(done_str);

	PORTB &= 0xBF;	// Keep LED on when done
	while (1)
	{	// Blink LED when done
		PORTB ^= 0x80;
		for (c=0; c<100000; c++)
			;
	};

}