Code:
/*
* File: main.c
* Author: arhimed
*
* Created on December 18, 2012, 2:33 PM
*/
#include <p24FJ64GB002.h>
#include <i2c.h>
#include <uart.h>
/*
*
*/
int main() {
unsigned char i2cbyte;
unsigned char SlaveAddress = 0x90;
int i;
AD1PCFGbits.PCFG = 0x1fff;
LATBbits.LATB8 = 0;
TRISBbits.TRISB8 = 0;
// U2TX -> RP15(pin 26)
RPOR7bits.RP15R = 5;
TRISBbits.TRISB15 = 0;
// U2RX -> RP14(pin25)
RPINR19bits.U2RXR = 14;
ConfigIntUART2(UART_RX_INT_DIS | UART_TX_INT_DIS);
OpenUART2(UART_EN & UART_IDLE_CON & UART_IrDA_DISABLE & UART_MODE_FLOW & UART_UEN_00 & UART_DIS_WAKE & UART_DIS_LOOPBACK
& UART_DIS_ABAUD & UART_UXRX_IDLE_ONE & UART_BRGH_FOUR & UART_NO_PAR_8BIT & UART_1STOPBIT,
UART_INT_TX & UART_IrDA_POL_INV_ZERO & UART_SYNC_BREAK_DISABLED & UART_TX_ENABLE & UART_INT_RX_CHAR & UART_ADR_DETECT_DIS
& UART_RX_OVERRUN_CLEAR, 416);
//Enable channel
I2C1CONbits.SEN =0; //not in start
I2C1CONbits.RSEN =0; //not in rs
I2C1CONbits.PEN =0; //not in stop
I2C1CONbits.RCEN =0; //not receiving now
I2C1CONbits.ACKEN =1; //init ack and send ackdt
I2C1CONbits.ACKDT =0; //ack with ack
I2C1CONbits.STREN =0; //no clock stretching
I2C1CONbits.GCEN =0; //disable general call
I2C1CONbits.SMEN =0; //smbus trsh disabled
I2C1CONbits.DISSLW =0; //enable slew rate
I2C1CONbits.A10M =0; //7bit addressing
I2C1CONbits.IPMIEN =0; //do not play smart
I2C1CONbits.SCLREL =1; //release clock
I2C1CONbits.I2CSIDL=0; //continue in idle mode
I2C1CONbits.I2CEN =0; //disable
I2C1BRG = 0x9D; // 100khz
I2C1ADD = SlaveAddress; //Slave Address
I2C1STATbits.ADD10 = 0; // 7-bit address
IFS1bits.MI2C1IF = 0; // Clear Interrupt
I2C1CONbits.I2CEN = 1; // Enable I2C Mode
i2cbyte = I2C1RCV; // read buffer to clear buffer full
IdleI2C1(); //Wait to complete
StartI2C1(); //Send the Start Bit
IdleI2C1(); //Wait to complete
MasterWriteI2C1((SlaveAddress) | 0);
IdleI2C1();
MasterWriteI2C1(0x00);
IdleI2C1();
RestartI2C1();
MasterWriteI2C1((SlaveAddress) | 1);
IdleI2C1();
i2cbyte = MasterReadI2C1();
NotAckI2C1();
StopI2C1();
IdleI2C1();
for (i=0;i<100;i++) WriteUART2('\n');
WriteUART2(0x00);
WriteUART2(i2cbyte);
WriteUART2(0x00);
for (i=0;i<10;i++) WriteUART2('.');
return (0);
}
a okacicu i hex pa probaj dal sljaka (ja nemam pri ruci nista da probam tako da je ovo malo napamet)
Re: SW I2C works while HW I2C doesn't - PIC24FJ64GB002
Re: SW I2C works while HW I2C doesn't - PIC24FJ64GB002
), C (a i ostale) biblioteke zatvorene, ... Primeri za dodatni hardver koji prodaju KATASTROFA ...
Re: SW I2C works while HW I2C doesn't - PIC24FJ64GB002
