/*****************************************************
This program was produced by the
CodeWizardAVR V2.05.3 Standard
Automatic Program Generator
© Copyright 1998-2011 Pavel Haiduc, HP InfoTech s.r.l.
http://www.hpinfotech.com
Project :
Version :
Date : 2012/02/17
Author : Hamid.....
Company :
Comments:
Chip type : ATmega32A
Program type : Application
AVR Core Clock frequency: 8 MHz
Memory model : Small
External RAM size : 0
Data Stack size : 512
*****************************************************/
#include <mega32a.h>
#include <alcd.h>
#include <ff.h>
#include <stdio.h>
#include <delay.h>
#define T1_OVF_FREQ 100
#define T1_PRESC 1024L
#define T1_INIT (0x10000L-(_MCU_CLOCK_FREQUENCY_/(T1_PRESC*T1_OVF_FREQ)))
unsigned char buffer[14];
FRESULT res;
unsigned int nbytes;
FATFS drive;
FIL file;
char path1[]="0:/a.txt";
interrupt [TIM1_OVF] void timer_comp_isr(void)
{
TCNT1H=T1_INIT>>8;
TCNT1L=T1_INIT&0xFF;
disk_timerproc();
}
void main(void)
{
TCCR1A=0x00;
TCCR1B=(1<<CS12)|(1<<CS10);
TCNT1H=T1_INIT>>8;
TCNT1L=T1_INIT&0xFF;
TIMSK=1<<TOIE1;
#asm("sei")
lcd_init(20);
lcd_clear();
if ((res=f_mount(0,&drive))==FR_OK)
lcd_putsf("FAT mounted = OK");
delay_ms(100);
lcd_clear();
lcd_putsf("working ...");
res=f_open(&file,path1,FA_READ);
if (res==FR_OK){
lcd_clear();
lcd_putsf("File Opened");
}
else if(res==FR_DISK_ERR){
lcd_clear();
lcd_putsf("FR_DISK_ERR");
}
else if(res==FR_INT_ERR){
lcd_clear();
lcd_putsf("FR_INT_ERR");
}
else if(res==FR_NOT_READY){
lcd_clear();
lcd_putsf("FR_NOT_READY");
}
else if(res==FR_INVALID_OBJECT){
lcd_clear();
lcd_putsf("FR_INVALID_OBJECT");
}
else if(res==FR_TIMEOUT){
lcd_clear();
lcd_putsf("FR_TIMEOUT");
}
else{
lcd_clear();
lcd_putsf("CAN'NT Open File");
}
delay_ms(100);
lcd_clear();
res=f_read(&file,buffer,14,&nbytes);
if (res==FR_OK){
lcd_putsf("Reading Data...");
}
else if(res==FR_DISK_ERR){
lcd_clear();
lcd_putsf("FR_DISK_ERR");
}
else if(res==FR_INT_ERR){
lcd_clear();
lcd_putsf("FR_INT_ERR");
}
else if(res==FR_NOT_READY){
lcd_clear();
lcd_putsf("FR_NOT_READY");
}
else if(res==FR_INVALID_OBJECT){
lcd_clear();
lcd_putsf("FR_INVALID_OBJECT");
}
else if(res==FR_TIMEOUT){
lcd_clear();
lcd_putsf("FR_TIMEOUT");
}
else {
lcd_putsf("CANN'T Reading Data");
}
delay_ms(100);
lcd_clear();
lcd_puts(buffer);
delay_ms(100);
lcd_clear();
if ((res=f_close(&file))==FR_OK)
lcd_putsf("File closed");
while(1){}
}
clock frequency changed while in master mode
:applause:
/*****************************************************
This program was produced by the
CodeWizardAVR V2.05.3 Standard
Automatic Program Generator
© Copyright 1998-2011 Pavel Haiduc, HP InfoTech s.r.l.
http://www.hpinfotech.com
Project :
Version :
Date : 2012/02/17
Author : Hamid.....
Company :
Comments:
Chip type : ATmega32A
Program type : Application
AVR Core Clock frequency: 8 MHz
Memory model : Small
External RAM size : 0
Data Stack size : 512
*****************************************************/
#include <mega32a.h>
#include <alcd.h>
#include <ff.h>
#include <stdio.h>
#include <delay.h>
#define T1_OVF_FREQ 100
#define T1_PRESC 1024L
#define T1_INIT (0x10000L-(_MCU_CLOCK_FREQUENCY_/(T1_PRESC*T1_OVF_FREQ)))
unsigned char buffer[10];
FRESULT res;
unsigned int nbytes;
FATFS drive;
FIL file;
char path1[]="0:/hamid.txt";
char path2[]="0:/test.txt";
interrupt [TIM1_OVF] void timer_comp_isr(void)
{
/* re-initialize Timer1 */
TCNT1H=T1_INIT>>8;
TCNT1L=T1_INIT&0xFF;
/* card access low level timing function */
disk_timerproc();
}
void main(void)
{
TCCR1A=0x00;
TCCR1B=(1<<CS12)|(1<<CS10);
TCNT1H=T1_INIT>>8;
TCNT1L=T1_INIT&0xFF;
TIMSK=1<<TOIE1;
delay_ms(1000);
#asm("sei")
// Alphanumeric LCD initialization
// RS - PORTA Bit 0
// RD - PORTA Bit 6
// EN - PORTA Bit 1
// D4 - PORTA Bit 2
// D5 - PORTA Bit 3
// D6 - PORTA Bit 4
// D7 - PORTA Bit 5
// Characters/line: 16
lcd_init(16);
lcd_clear();
if ((res=f_mount(0,&drive))==FR_OK)
lcd_putsf("FAT mounted = OK");
delay_ms(1000);
lcd_clear();
if ((res=f_open(&file,path1,FA_READ))==FR_OK)
lcd_putsf("File open hamid");
delay_ms(1000);
lcd_clear();
if ((res=f_read(&file,buffer,14,&nbytes))==FR_OK)
lcd_putsf("Reading Data");
delay_ms(1000);
lcd_clear();
lcd_puts(buffer);
delay_ms(1000);
lcd_clear();
if ((res=f_close(&file))==FR_OK)
lcd_putsf("File closed");
delay_ms(1000);
lcd_clear();
if ((res=f_open(&file,path2,FA_READ))==FR_OK)
lcd_putsf("File opened test");
delay_ms(1000);
lcd_clear();
if ((res=f_read(&file,buffer,14,&nbytes))==FR_OK)
lcd_putsf("Reading Data");
delay_ms(1000);
lcd_clear();
lcd_puts(buffer);
delay_ms(1000);
lcd_clear();
if ((res=f_close(&file))==FR_OK)
lcd_putsf("File closed");
while(1);
}
دیدگاه