trunk/PIC/main.c

/* H7 -projekt opgave */

#include <pic18.h>
#include "delay.h"
#include "i2c.h"
#include "lcd.h"


#define TC74 0x9A /* I2C TC74 IC */

void i2c_init(void)
{
#ifdef I2C_MODULE
    SSPMode(MASTER_MODE);
    SSPEN = 1;
    CKP = 1;
#else
    SCL_DIR = I2C_OUTPUT;
    SDA_DIR = I2C_OUTPUT;
    SDA = 0;
    SCL = 0;
#endif
}

char ReadTemp(void)
{
        char temp;
        i2c_WriteTo(TC74);
        i2c_PutByte(0x00); //tell TC74 we want to read
        i2c_ReadFrom(TC74);
        temp = i2c_GetByte(I2C_LAST);
        i2c_Stop(); //assert a stop condition on SDA & SCL
        return temp;
}

void main(void) 
{
        lcd_init(0); //init in 4-bit mode
        i2c_init();
        
        while (1)
        {
        }
}
1	torben	2	/* H7 -projekt opgave */
2
3			#include <pic18.h>
4			#include "delay.h"
5			#include "i2c.h"
6			#include "lcd.h"
7
8
9			#define TC74 0x9A /* I2C TC74 IC */
10
11			void i2c_init(void)
12			{
13			#ifdef I2C_MODULE
14			SSPMode(MASTER_MODE);
15			SSPEN = 1;
16			CKP = 1;
17			#else
18			SCL_DIR = I2C_OUTPUT;
19			SDA_DIR = I2C_OUTPUT;
20			SDA = 0;
21			SCL = 0;
22			#endif
23			}
24
25			char ReadTemp(void)
26			{
27			char temp;
28			i2c_WriteTo(TC74);
29			i2c_PutByte(0x00); //tell TC74 we want to read
30			i2c_ReadFrom(TC74);
31			temp = i2c_GetByte(I2C_LAST);
32			i2c_Stop(); //assert a stop condition on SDA & SCL
33			return temp;
34			}
35
36			void main(void)
37			{
38			lcd_init(0); //init in 4-bit mode
39			i2c_init();
40
41			while (1)
42			{
43			}
44			}