main.c

我改写的在TFT上显示SD卡中BMP文件的程序

#include <avr/io.h>
#include <avr/pgmspace.h>
#include <avr/interrupt.h>
#include <string.h>
#include "tinyfat.h"
#include "TFT_LCD.h"
#include "diskio.h"
#include "portBit.h"






//FILINFO finfo;
FATFS fatfs;				/* File system object for each logical drive */

static volatile 
BYTE timeDelay;






ISR(TIMER0_COMPA_vect)
{
    if(timeDelay) timeDelay--;
	disk_timerproc();	/* Drive timer procedure of low level disk I/O module */
}





static
void IoInit ()
{


//	OCR2 = 90-1;		// Timer2: 100Hz interval (OC2)
//	TCCR2 = 0b00001101;
//	TIMSK = 0b10000000;	// Enable TC2.oc, TC0.oc interrupt
	//DDRC=0xff;
    //PORTC=0xff;
    //DDRD=0xff;

	TCCR0A= (1<<WGM01);   // Timer0: 100Hz interval (8Mhz OSC)
	TCCR0B= (1<<CS02);  
	TIMSK0= (1<<OCIE0A);
	TCNT0 =0;
	OCR0A =15;

	sei();
}



/*-----------------------------------------------------------------------*/
/* Main                                                                  */


BYTE filebuf[256];
BYTE fileNamebuf[6];

void init_fileNamebuf(void)
{
 fileNamebuf[0]='1';
 fileNamebuf[1]='.';
 fileNamebuf[2]='B';
 fileNamebuf[3]='I';
 fileNamebuf[4]='N';
 fileNamebuf[5]='\0';
}








int main(void)
{
    UINT i,j;
	BYTE fileItem;
	UINT  s2; 
	//FATFS *fs;
	//DIR dir;				/* Directory object */
	FIL file1;		/* File object */


	IoInit();
    init_fileNamebuf();
    LCD_Init();
    LCD_SetSCRN(0x001F);//Bule
	disk_initialize(0); 
	f_mount(0, &fatfs);	 
	DelayMs(2000);
	LCD_HLine(2, 100, 100, RED);
	//LCD_HLine(2, 101, 100, RED);
	DelayMs(2000);

	while(1)
		{
		for(fileItem=0;fileItem<10;fileItem++)
			{
			fileNamebuf[0]='1'+fileItem;
			if(f_open(&file1, fileNamebuf, FA_OPEN_EXISTING | FA_READ)==FR_OK)
				{
				LCD_Start_Window();
				for(i=0;i<640;i++)
					{
					f_read(&file1, filebuf, 240, &s2);
					for(j=0;j<240;j++)
						{
						DATA_PORT = filebuf[j];
						L(CTL_PORT,LCD_WR );	//WR=0
						H(CTL_PORT,LCD_WR );	//WR=1
						}
					}
				f_close(&file1);
				DelayMs(2000);
				}
			}
		}
}