Hola Olotill
xD Claro que no se ruso xD use el google traslator xD
Una odisea pero claro que aca muestro cmo lo hice.
Yo use un Atmega8 para rescatar otros 2 atmega8,ya no intente el atmega8535 .
Conecta PB0-PB7 del atmega8 a PB0-PB7 del atmega16 , esa es la linea de datos.
PD2-PD6 - sobre PD2-PD6
PD1 en XTAL1
PD7 a PA0
Conecta un led en RSY / BSY y el catodo a tierra.
Asi sabras cunado esta trabajando o no.Yo lo conecto al revez xD para ver bien los flashasos.
PAGEL -- a GND
Una ves que tengas todo armando , RESET ponlo a GND
Luego ENcendera 1 segundo el led eso indica que debes tener conectado el RESET a GND.
CUando vuelva a encender el led te indica que le conectes 12v a GND.
ENtre paso y paso son 5 segundos aprox. suficiente.
CUando el led empiece a parpadear , es que esta listo para bailar xD.
Revisa la configuracion de pines en modo paralelo que coincidan con los del atmega8.
Saludos!
// www.artem.ru
// (C)2008 Artem Kuchin
//
// THIS IS NOT A COMPLETE CODE!!!
// YOU MUST ADD YOU OWN LCD LIB AND REWRITE ALL CALLS TO LCD FUNCTIONS
// ****************************************
// *** SET FREQUENCY CORRECTLY **
#define F_CPU 800000UL
// ****************************************
#include <avr/io.h>
#include <inttypes.h>
#include <util/delay.h>
#include <stdlib.h>
// Los define de abajo son referentes a los pines del PORTD
#define X_XTAL1 1
#define X_OE 2
#define X_WR 3
#define X_BS1 4
#define X_XA0 5
#define X_XA1 6
#define X_BS2 7
int main() {
char i;
unsigned char data[3];
DDRC=0xff;
DDRD|=0b11111110;
//aplicar gnd a reset
PORTC=0xFF;
_delay_ms(1000);
PORTC=0;
// display ON, blinking bottom line cursor
_delay_ms(5000);
// toggle xtal1 at lease 6 times
for(i=0;i<8;i++){
PORTD|=_BV(X_XTAL1);
_delay_ms(10);
PORTD&=~_BV(X_XTAL1);
_delay_ms(10);
}
// set prog enable pins (pagel is gnd, xa0, xa1, bs1 - zero)
// PD4,PD5,PD6
PORTD&=~(_BV(X_XA0)|_BV(X_XA1)|_BV(X_BS1));
PORTD|=_BV(X_WR); // write disables
PORTC=0xFF;
_delay_ms(1000);
PORTC=0;
//aplicar 12v a reset
_delay_ms(5000);
// read signature bytes
// SET OE HIGH
PORTD|=_BV(X_OE);
DDRB=0xff;
for(i=0;i<3;i++){
// load command
//Set XA1 to 1, XA0 to 0. This enables command loading.
PORTD|=_BV(X_XA1);
PORTD&=~_BV(X_XA0);
// Set BS1 to “0”, BS1 - PD4
PORTD&=~_BV(X_BS1);
// Set DATA to command
PORTB=0b00001000; // A: Load Command “0000 1000”.
//Give XTAL1 a positive pulse. This loads the command., XTAL1 - PD1
PORTD|=_BV(X_XTAL1);_delay_ms(10);PORTD&=~_BV(X_XTAL1);_delay_ms(10);
//load address
//Set XA1 to 0, XA0 to 0. This enables address loading.
// XA1 - PD6, XA0 - PD5
PORTD&=~_BV(X_XA1);
PORTD&=~_BV(X_XA0);
// Set BS1 to “0”, BS1 - PD4
PORTD&=~_BV(X_BS1);
// Set DATA to command
PORTB=i; // addr 0
//Give XTAL1 a positive pulse. This loads the address low byte , pd1
PORTD|=_BV(X_XTAL1);_delay_ms(10);PORTD&=~_BV(X_XTAL1);_delay_ms(10);
// XA0=XA1=1
//PORTD|=_BV(X_XA0)|_BV(X_XA1);
DDRB=0;
//Set OE to “0” - OE - PD2
//the selected Signature byte can now be read at DATA.
PORTD&=~_BV(X_OE);
_delay_ms(10);
// read data
data[(int)i]=PINB;
//Set OE to “1”.
PORTD|=_BV(X_OE);
DDRB=0xff;
}
_delay_ms(5000);
// read fuses and lock bits
// load command
//Set XA1 to 1, XA0 to 0. This enables command loading.
PORTD|=_BV(X_XA1);
PORTD&=~_BV(X_XA0);
// Set BS1 to “0”, BS1 - PD4
PORTD&=~_BV(X_BS1);
// Set DATA to command
PORTB=0b00000100; // A: Load Command “0000 1000”.
//Give XTAL1 a positive pulse. This loads the command., XTAL1 - PD1
PORTD|=_BV(X_XTAL1);_delay_ms(10);PORTD&=~_BV(X_XTAL1);_delay_ms(10);
i=0;
DDRB=0;
PORTD&=~_BV(X_OE);
// fuse low byte
PORTD&=~_BV(X_BS1);
PORTD&=~_BV(X_BS2);
_delay_ms(10);
// read data
data[(int)i]=PINB;
i++;
// fuse high byte
PORTD|=_BV(X_BS1);
PORTD|=_BV(X_BS2);
_delay_ms(10);
// read data
data[(int)i]=PINB;
i++;
// lock bits
PORTD|=_BV(X_BS1);
PORTD&=~_BV(X_BS2);
_delay_ms(10);
// read data
data[(int)i]=PINB;
// disable output
PORTD|=_BV(X_OE);
DDRB=0xff;
_delay_ms(5000);
for(i=10;i>0;i--){
_delay_ms(100);
}
DDRD|=0b11111110;
// chip erase
//Set XA1 to 1, XA0 to 0. This enables command loading.
PORTD|=_BV(X_XA1);
PORTD&=~_BV(X_XA0);
// Set BS1 to “0”, BS1 - PD4
PORTD&=~_BV(X_BS1);
// Set DATA to command
PORTB=0b10000000;
//Give XTAL1 a positive pulse. This loads the command., XTAL1 - PD1
PORTD|=_BV(X_XTAL1);_delay_ms(10);PORTD&=~_BV(X_XTAL1);_delay_ms(10);
// Give WR a negative pulse. This starts the Chip Erase. RDY/BSY goes low.
PORTD&=~_BV(X_WR);_delay_ms(10);PORTD|=_BV(X_WR);_delay_ms(10);
// Wait until RDY/BSY goes high before loading a new command.
// load default data for FUSE low byte
//Set XA1 to 1, XA0 to 0. This enables command loading.
PORTD|=_BV(X_XA1);
PORTD&=~_BV(X_XA0);
// Set BS1 to “0”, BS1 - PD4
PORTD&=~_BV(X_BS1);
// Set DATA to command
PORTB=0b01000000;
//Give XTAL1 a positive pulse. This loads the command., XTAL1 - PD1
PORTD|=_BV(X_XTAL1);_delay_ms(10);PORTD&=~_BV(X_XTAL1);_delay_ms(10);
// load data
PORTD&=~_BV(X_XA1);
PORTD|=_BV(X_XA0);
PORTB=0b11100001; // DEFAULT VALUE FOR LOW FUSE BYTE
PORTD|=_BV(X_XTAL1);_delay_ms(10);PORTD&=~_BV(X_XTAL1);_delay_ms(10);
// Set BS1 to “0” and BS2 to “0”.
PORTD&=~_BV(X_BS1);
PORTD&=~_BV(X_BS2);
// Give WR a negative pulse. This starts the Chip Erase. RDY/BSY goes low.
PORTD&=~_BV(X_WR);_delay_ms(10);PORTD|=_BV(X_WR);_delay_ms(10);
// load default data for HIGH low byte
//Set XA1 to 1, XA0 to 0. This enables command loading.
PORTD|=_BV(X_XA1);
PORTD&=~_BV(X_XA0);
// Set BS1 to “0”, BS1 - PD4
PORTD&=~_BV(X_BS1);
// Set DATA to command
PORTB=0b01000000;
//Give XTAL1 a positive pulse. This loads the command., XTAL1 - PD1
PORTD|=_BV(X_XTAL1);_delay_ms(10);PORTD&=~_BV(X_XTAL1);_delay_ms(10);
// load data
PORTD&=~_BV(X_XA1);
PORTD|=_BV(X_XA0);
PORTB=0b10011001; // DEFAULT VALUE FOR HIGH FUSE BYTE
PORTD|=_BV(X_XTAL1);_delay_ms(10);PORTD&=~_BV(X_XTAL1);_delay_ms(10);
// Set BS1 to “0” and BS2 to “0”.
PORTD|=_BV(X_BS1);
PORTD&=~_BV(X_BS2);
// Give WR a negative pulse. This starts the Chip Erase. RDY/BSY goes low.
PORTD&=~_BV(X_WR);_delay_ms(10);PORTD|=_BV(X_WR);_delay_ms(10);
while(1){ PORTC=0xFF;
_delay_ms(500);
PORTC=0;
_delay_ms(500);
}
}
Te adjunto el hex. Use un cristal de 8MHz.
