How to use i2c with PIC16F84A and PIC12F675 ?

[Adek]

i'm use 16F84A is master and use 12F675 is slave.
master connect with mmc card via rs232.
my master will read parameter from slave and keep parameter to temp and then pass that value to mmc card.
i'm wanna to know how stretegy to read and write.
Thanks.

[Adek]

This is main of slave.
/***********************************************************/
void main(void)
{
int16 value;
int i;
float volt;
char val[9];

setup_port_a(ALL_ANALOG);
setup_adc(ADC_CLOCK_INTERNAL);
set_adc_channel(0);

value = Read_ADC();
volt = Vbe * (float) value;
sprintf(val,"<%0.5f>",volt);
for(i=0;i<7;i++)
i2c_write(val[i]);
delay_ms(1);
}
/***********************************************************/
and this main of master.
/***********************************************************/
#use i2c(master, sda=PIN_A0, scl=PIN_A1)
#use rs232 ( baud=9600, xmit=TxD, rcv=RxD, stream=memory)
void main()
{
char tmp[12];
char begin[4] ={0x0A,0x0D,0x3E};
char write[3] =":";
char fmane[13]="TEST0001.TXT";
char val_sen;
int i,j,k,l,test;

while (!kbhit());
for(i=0;i<3;i++) tmp[i]=getc();
for(j=0;j<3;j++) if(tmp[j]!=begin[j])reset_cpu();

putc('W');

while(!kbhit());
for(k=0;k<1;k++) tmp[k]=getc();
for(k=0;k<1;k++) if(tmp[k]==write[k]) test=1;
for(l=0;l<12;l++) putc(fmane[l]);

putc(13);

while(TRUE)
{ i2c_start();
i2c_write(0x01);
for(i=0;i<7;i++)
tmp[i] = i2c_read();
i2c_stop();
putc(',');
for(i=0;i<7;i++)
putc(tmp[i]);
delay_ms(1);
}
}
/***********************************************************/

Now it can write file to mmc card, but data put to mmc card it wrong.

[PCM programmer]

In the following thread, they discuss the reasons why a hardware SSP
module is needed for an i2c slave:
http://www.ccsinfo.com/forum/viewtopic.php?t=23177
Your two PICs don't have a hardware SSP module.