I'm trying to use the following piece of code to copy a string to a buffer in order to send it over i2c. However, when I run it in the Keil simulator I can see it doing the copy, but then it's changing some of the characters (like the compiler's re-using the memory address). This is pretty much straight out of K&R, so I'm a bit confused.

What am I missing??

Cheers,

Rob.

void send_i2c_data
        (
        unsigned char *str
        )

{
        unsigned int buffer_count = 0;
        unsigned char i2c_status;


		while ((*i2c_buffer = *str)!='')
		{
		str++;
		i2c_buffer++;
		buffer_count++;
		}
	
	i2c_status = i2c_transmit(0x60);


}