[ÁN]_Giao tiếp SPI giữa 1 master và 2 slave dùng CCS
 

chào tất cả mọi người,em đang làm đồ án về SPI mọi người vào xem giúp em với, em sửa mãi mà vẫn chưa được? flie e gửi kèm
/************CHUONG TRINH CHO MASTER******************/
#include "16f887.h"
#device adc=8
#FUSES NOWDT //No Watch Dog Timer
#FUSES HS //High speed Osc (> 4mhz for PCM/PCH) (>10mhz for PCD)
//#FUSES NOPUT //No Power Up Timer
//#FUSES MCLR //Master Clear pin enabled
#FUSES NOPROTECT //Code not protected from reading
#FUSES NOCPD //No EE protection
#FUSES NOBROWNOUT //No brownout reset
//#FUSES IESO //Internal External Switch Over mode enabled
//#FUSES FCMEN //Fail-safe clock monitor enabled
#FUSES NOLVP //No low voltage prgming, B3(PIC16) or B5(PIC18) used for I/O
#FUSES NODEBUG //No Debug mode for ICD
#FUSES NOWRT //Program memory not write protected
//#FUSES BORV40 //Brownout reset at 4.0V
//#FUSES RESERVED //Used to set the reserved FUSE bits

#use delay(clock=20000000)
#include <lcd_lib_4bit.c>
#use spi(DI=PIN_C4, DO=PIN_C5, CLK=PIN_C3,BITS=8)
#use fast_io(b)
int8 nho,phim,value,data[10];
int8 a,b,c;

void read_button(void)
{
if(input_state(pin_d0)==0)
nho=1;
if(nho==1&&input_state(pin_d0)==1)
{
nho=0;
phim++;
}
}
void doc_adc(void)
{
set_adc_channel(0); // chon kenh chuyen doi la kenh 0/AN0
delay_us(10); // thoi gian tre can thiet de adc 8bit co the chuyen doi duoc
value=read_adc(); // doc gia tri adc sau khi chuyen doi xong

a=value/100;
b=(value%100)/10;
c=(value%100)%10;
}
void doc_dulieu(void)
{
while(spi_data_is_in()==true)
{
data[0]=spi_read();
data[1]=spi_read();
data[2]=spi_read();
}
}
void gui_dulieu(void)
{
spi_write(0x00);
delay_us(10);

spi_write(a);
delay_us(10);
spi_write(b);
delay_us(10);
spi_write(c);
delay_us(10);

}
void gui_dulieu1(void)
{
spi_write(0x01);
delay_us(10);

spi_write(a);
delay_us(10);
spi_write(b);
delay_us(10);
spi_write(c);
delay_us(10);

}
void gui_dulieu2(void)
{
spi_write(0x02);
delay_us(10);

spi_write(a);
delay_us(10);
spi_write(b);
delay_us(10);
spi_write(c);
delay_us(10);

}
void xoa_dulieu(void)
{
spi_write(0);
spi_write(0);
spi_write(0);
spi_write(0);
}

void main()
{
set_tris_a(0x01);
output_high(pin_b0);
output_high(pin_b1);
set_tris_d(0x01);

setup_adc(ADC_CLOCK_INTERNAL);// cho phep su dung modul A/D
setup_adc_ports(sAN0|VSS_VDD);// chon chan AN0 lam chan A/D dau vao, su dung dien ap mau cua chip
setup_timer_0(RTCC_INTERNAL|RTCC_DIV_1);
setup_timer_1(T1_DISABLED);
setup_timer_2(T2_DISABLED,0,1);
setup_comparator(NC_NC_NC_NC);
setup_spi(SPI_MASTER|SPI_H_TO_L|SPI_CLK_DIV_4|SPI_ SS_DISABLED);

lcd_init();

phim=0;
value=0;
while(true)
{
read_button();
doc_adc();


lcd_putcmd(0x80);
lcd_putchar("Phim : ");
lcd_putchar(phim+48);

lcd_putcmd(0xc0);
lcd_putchar("Adc : ");
lcd_putchar(a+48);
lcd_putchar(b+48);
lcd_putchar(c+48);


switch(phim)
{
case 0:
lcd_putcmd(0x89);
lcd_putchar("Xoa Du lieu");
output_low(pin_b0);
output_low(pin_b1);
xoa_dulieu();
break;
case 1:
lcd_putcmd(0x89);
lcd_putchar("Gui 2 Slave");
output_low(pin_b0);
output_low(pin_b1);
gui_dulieu();
break;
case 2:
lcd_putcmd(0x89);
lcd_putchar("Gui Slave 1");
output_low(pin_b0);
output_high(pin_b1);
gui_dulieu1();
doc_dulieu();
lcd_putcmd(0xc9);
lcd_putchar("Nhan slave1: ");
lcd_putchar(data[0]+48);
lcd_putchar(data[1]+48);
lcd_putchar(data[2]+48);
break;
case 3:
lcd_putcmd(0x89);
lcd_putchar("Gui Slave 2");
output_high(pin_b0);
output_low(pin_b1);
gui_dulieu2();
doc_dulieu();
lcd_putcmd(0xc9);
lcd_putchar("Nhan slave2: ");
lcd_putchar(data[0]+48);
lcd_putchar(data[1]+48);
lcd_putchar(data[2]+48);
break;
case 4:
output_high(pin_b0);
output_high(pin_b1);
phim=0;
break;
}
}
}
/*********************CHUONG TRINH CHO SLAVE1*********************/
#include "16f887.h"
#device adc=8
#FUSES NOWDT //No Watch Dog Timer
#FUSES HS //High speed Osc (> 4mhz for PCM/PCH) (>10mhz for PCD)
#FUSES NOPUT //No Power Up Timer
//#FUSES MCLR //Master Clear pin enabled
#FUSES NOPROTECT //Code not protected from reading
#FUSES NOCPD //No EE protection
#FUSES NOBROWNOUT //No brownout reset
//#FUSES IESO //Internal External Switch Over mode enabled
//#FUSES FCMEN //Fail-safe clock monitor enabled
#FUSES NOLVP //No low voltage prgming, B3(PIC16) or B5(PIC18) used for I/O
#FUSES NODEBUG //No Debug mode for ICD
#FUSES NOWRT //Program memory not write protected
//#FUSES BORV40 //Brownout reset at 4.0V
//#FUSES RESERVED //Used to set the reserved FUSE bits

#use delay(clock=20000000)
#use spi(DI=PIN_C4, DO=PIN_C5, CLK=PIN_C3,BITS=8)
#include <lcd_lib_4bit.c>
int8 data[10],a,b,c,value;

void gui_dulieu(void);
void doc_dulieu(void);
void doc_adc(void);

void doc_adc(void)
{
set_adc_channel(0); // chon kenh chuyen doi la kenh 0/AN0
delay_us(10); // thoi gian tre can thiet de adc 8bit co the chuyen doi duoc
value=read_adc(); // doc gia tri adc sau khi chuyen doi xong

a=value/100;
b=(value%100)/10;
c=(value%100)%10;
}

void gui_dulieu(void)
{
spi_write(a);
delay_us(10);
spi_write(b);
delay_us(10);
spi_write(c);
delay_us(10);
}

void doc_dulieu(void)
{
while(spi_data_is_in()==true)
{
data[0]=spi_read(1);
data[1]=spi_read(1);
data[2]=spi_read(1);
data[3]=spi_read(1);
}
if(data[0]==0x01)
gui_dulieu();
}
void main()
{
set_tris_a(0x01);

setup_adc(ADC_CLOCK_INTERNAL);// cho phep su dung modul A/D
setup_adc_ports(sAN0|VSS_VDD);// chon chan AN0 lam chan A/D dau vao, su dung dien ap mau cua chip

setup_timer_0(RTCC_INTERNAL|RTCC_DIV_1);
setup_timer_1(T1_DISABLED);
setup_timer_2(T2_DISABLED,0,1);

setup_comparator(NC_NC_NC_NC);

setup_spi(SPI_SLAVE|SPI_H_TO_L|SPI_CLK_DIV_4);

lcd_init();

data[0]=0;
data[1]=0;
data[2]=0;
data[3]=0;
while(true)
{
doc_adc();
doc_dulieu();

lcd_putcmd(0x80);
lcd_putchar("Adc_gui:");
lcd_putchar(a+48);
lcd_putchar(b+48);
lcd_putchar(c+48);

lcd_putcmd(0xc0);
lcd_putchar("Adc_nhan:");
lcd_putchar(data[1]+48);
lcd_putchar(data[2]+48);
lcd_putchar(data[3]+48);

}
}
/*********************CHUONG TRINH CHO SLAVE2*********************/
#include "16f887.h"
#device adc=8
#FUSES NOWDT //No Watch Dog Timer
#FUSES HS //High speed Osc (> 4mhz for PCM/PCH) (>10mhz for PCD)
#FUSES NOPUT //No Power Up Timer
//#FUSES MCLR //Master Clear pin enabled
#FUSES NOPROTECT //Code not protected from reading
#FUSES NOCPD //No EE protection
#FUSES NOBROWNOUT //No brownout reset
//#FUSES IESO //Internal External Switch Over mode enabled
//#FUSES FCMEN //Fail-safe clock monitor enabled
#FUSES NOLVP //No low voltage prgming, B3(PIC16) or B5(PIC18) used for I/O
#FUSES NODEBUG //No Debug mode for ICD
#FUSES NOWRT //Program memory not write protected
//#FUSES BORV40 //Brownout reset at 4.0V
//#FUSES RESERVED //Used to set the reserved FUSE bits

#use delay(clock=20000000)
#use spi(DI=PIN_C4, DO=PIN_C5, CLK=PIN_C3,BITS=8)
#include <lcd_lib_4bit.c>
int8 data[10],a,b,c,value;

void gui_dulieu(void);
void doc_dulieu(void);
void doc_adc(void);
void doc_adc(void)
{
set_adc_channel(0); // chon kenh chuyen doi la kenh 0/AN0
delay_us(10); // thoi gian tre can thiet de adc 8bit co the chuyen doi duoc
value=read_adc(); // doc gia tri adc sau khi chuyen doi xong

a=value/100;
b=(value%100)/10;
c=(value%100)%10;
}
void gui_dulieu(void)
{
spi_write(a);
delay_us(10);
spi_write(b);
delay_us(10);
spi_write(c);
delay_us(10);
}

void doc_dulieu(void)
{
while(spi_data_is_in()==true)
{
data[0]=spi_read(1);
data[1]=spi_read(1);
data[2]=spi_read(1);
data[3]=spi_read(1);
}
if(data[0]==0x02)
gui_dulieu();
}
void main()
{
set_tris_a(0x01);
setup_adc(ADC_CLOCK_INTERNAL);// cho phep su dung modul A/D
setup_adc_ports(sAN0|VSS_VDD);// chon chan AN0 lam chan A/D dau vao, su dung dien ap mau cua chip

setup_timer_0(RTCC_INTERNAL|RTCC_DIV_1);
setup_timer_1(T1_DISABLED);
setup_timer_2(T2_DISABLED,0,1);

setup_comparator(NC_NC_NC_NC);

setup_spi(SPI_SLAVE|SPI_H_TO_L|SPI_CLK_DIV_4);

lcd_init();

data[0]=0;
data[1]=0;
data[2]=0;
data[3]=0;
while(true)
{
doc_adc();
doc_dulieu();

lcd_putcmd(0x80);
lcd_putchar("Adc_gui :");
lcd_putchar(a+48);
lcd_putchar(b+48);
lcd_putchar(c+48);

lcd_putcmd(0xc0);
lcd_putchar("Adc_nhan :");
lcd_putchar(data[1]+48);
lcd_putchar(data[2]+48);
lcd_putchar(data[3]+48);


}
}