main.cpp

00001 #include "mbed.h"
00002   
00003 I2C i2cBus(I2C_SDA, I2C_SCL);
00004  
00005 int main()
00006 {       int i2cAddres;
00007        i2cBus.frequency(100000);
00008        
00009        i2cAddres=0x68; 
00010        for(i2cAddres=3;i2cAddres<119;i2cAddres++)       //  I2C device found at address 0x52
00011        {
00012                       // Address of DS1307 is 0x68 (7 bit address)
00013        int i2c8BitAddres= i2cAddres <<1;  // Convert to 8bit addressing used by mbed 
00014     
00015        int result=i2cBus.write(i2c8BitAddres, NULL, 0);  
00016         
00017         //0 on success (ack), non-0 on failure (nack)                  
00018        if (result==0)   
00019             printf("I2C device found at address 0x%02X             \r\n", i2cAddres);
00020         else
00021             printf("I2C device Not found at address 0x%02X         \r\n", i2cAddres);  
00022             }            
00023 }
00024