اقتباس المشاركة الأصلية كتبت بواسطة سعيد قادر جزاك الله كل الخير

اقتباس المشاركة الأصلية كتبت بواسطة Tech Master بـاركـ,,,ـالله لـكــ .. وزرادك مــن فضلــة أخــى الكريــــم على اى اساس يتم اختيار عنوان الميكرو ؟ ام لكل ميكرو عنوان خاص بــة .؟ تقبل مرورى ..

اقتباس المشاركة الأصلية كتبت بواسطة hamzazayyad اليوم اضافه البرنامج مع البروتوس على الوصله التاليه https://rapidshare.com/files/4378284...ster_slave.rar ولا تنسونا من صالح دعائكم

////////////////////////////////////////////////////////////////////////////////
void I2C_init(void);
void I2C_Start(void);
void I2C_Stop(void);
void I2C_Repeted_Star();
unsigned char I2C_Write(unsigned char DAT);
unsigned char I2C_Read(unsigned char ack);
unsigned char I2C1_Bus_IsFree();
////////////////////////////////////////////////////////////////////////////////

void I2C_Init()
{
TRISCbits.TRISC3 = 1; //make C3 input
TRISCbits.TRISC4 = 1; //make C4 input
APFCONbits.SCKSEL = 0; //SCL is on pin RC3
APFCONbits.SDISEL = 0; //SDA is on pin RC4
INTCON = 0xC0; //Enables all active interrupts & all active peripheral interrupts
PIE1bits.SSP1IE = 1; //Enables the MSSP interrupt
PIE2bits.BCL1IE = 0; //Disables the MSSP Bus Collision Interrupt it flag BCL1IF ,
SSPADD = 0x09; //For 100k clock rate
SSPSTATbits.SMP = 1; //Slew rate control disabled
SSPCON1 = 0x38; //Enables the serial port(SSPEN) and configures the SDA and SCL pins & Enable clock
//I2C Master mode, clock = FOSC / (4 * (SSPADD+1))=> 4000000/((9+1)*4) = 100khz
SSPSTATbits.CKE = 0; //Disable SMBus specific inputs
SSPCON3bits.PCIE = 1; //Enable interrupt on detection of Stop condition
SSPCON3bits.SCIE = 1; //Enable interrupt on detection of Start or Restart conditions
SSPCON3bits.SDAHT = 0; //Minimum of 100 ns hold time on SDA after the falling edge of SCL
PIR1bits.SSP1IF = 0;

}
////////////////////////////////////////////////////////////////////////////////
void I2C_Start()
{
SSPCON2bits.SEN = 1;
while(PIR1bits.SSP1IF == 0);
PIR1bits.SSP1IF = 0;
}
////////////////////////////////////////////////////////////////////////////////
unsigned char I2C_Write(unsigned char DAT)
{//0
SSPBUF=DAT;
while(PIR1bits.SSP1IF == 0);
PIR1bits.SSP1IF = 0;

return ACKSTAT; // 0 there is ACK , 1 NACK,
}
////////////////////////////////////////////////////////////////////////////////
unsigned char I2C_Read(unsigned char ack)
{//1
unsigned char DA1;
if(SSPCON1bits.SSPOV==1) // if previous data had not been read from the SSPBUF so we must read it;
DA1=SSPBUF;

SSPCON2bits.RCEN=1;
while(SSPSTATbits.BF == 0);
//while(PIR1bits.SSP1IF == 0); //wait to complet receive data ,
PIR1bits.SSP1IF = 0;
DA1=SSPBUF; //raed data, to receive more byte send ACK (SDA=ACKDT=0)
if(ack == 1)SSPCON2bits.ACKDT=0; //to receive more byte send ACK (SDA=ACKDT=0)
else SSPCON2bits.ACKDT=1; //to stop receive byte send NACK (SDA=ACKDT=1)
SSPCON2bits.ACKEN=1;
while(PIR1bits.SSP1IF == 0); //wait to end ack,
PIR1bits.SSP1IF = 0;

return DA1;
}

////////////////////////////////////////////////////////////////////////////////
void I2C_Stop()
{
SSPCON2bits.PEN=1;
while(PIR1bits.SSP1IF == 0);
PIR1bits.SSP1IF = 0;
}
////////////////////////////////////////////////////////////////////////////////
unsigned char I2C_Bus_Is_Free()
{
if(SSPSTATbits.P == 0 && SSPSTATbits.S ==1 ) return 1; //the bus is busy now,
return 0;
}
////////////////////////////////////////////////////////////////////////////////
void I2C_Repeted_Star()
{
SSPCON2bits.RSEN=1;
while(PIR1bits.SSP1IF == 0);
PIR1bits.SSP1IF = 0;
}