Help me in the FBUS protocol

Great, that was the best you could do, you can try sending different kind of messages to understand some packet format, like most of the fields are going to be fixed. It really helps a lot.

First I installed the Bonrix softwares in the system.
I transmitted a message by connecting the nokia3310 mobile to the system.
while transmitting the msg i monitored the data frame from the system to the mobile by using the Bonrix software.
I used the same frame. in my controller.
Thanks and regards

giri

Glad it worked in the end

Have you worked out where you\we went wrong ?

The Frame is not yet analysed, I will analyse as soon as possible and I will post a detailed description on it.

Thanks and Regards

that would be really helpful for everyone will be waiting for reply.

Hi,

I would like to know whether the same fbus protocol (in embeddtronics.com ) can be used for nokia 1100 ???

senchen,
nokia 1100 follows a different frame structure, so you cannot use nokia 3310 protocol.

#include <AT89X52.h>
 //
void set_baud(){
TI=0;
SCON=0x50;
T2CON=0x34;
RCAP2H=0x0FF;
RCAP2L=0x0FD;
TR2=1;
}


void serial_send(unsigned char a){
TI=0;
SBUF=a;
while(TI==0);
TI=0;
}

void delay(){
unsigned char xa;
for(xa=0;xa<400;xa++);}
void req_firmware(){
 unsigned char ii;
code unsigned char cmd_frm[16]={0x1E, 0x00, 0x0C, 0xD1, 0x00, 0x07, 0x00, 0x01, 0x00, 0x03, 0x00, 0x01, 0x60, 0x00, 0x72, 0xD5};
for(ii=0;ii<=15;ii++)
{
serial_send(cmd_frm[ii]);

} }

void send_confirmation(){
unsigned char iiii;
code unsigned char cmd_confirm[]={0x1E, 0x00, 0x0C, 0x7F, 0x00, 0x02, 0xD2, 0x01, 0xC0, 0x7C};
for(iiii=0;iiii<10;iiii++) {
serial_send(cmd_confirm[iiii]);


}
}

void synch(){
unsigned char i2;
for(i2=0;i2<128;i2++)
serial_send(0x55);



}
code unsigned char test[]={0x1E, 0x0C, 0x00, 0x7F, 0x00, 0x02, 0xD1, 0x00, 0xCF, 0x71};
unsigned char buffer[50];
unsigned char i;
bit rcv_flag=0;
bit match=1;
void serial0() interrupt 4 {

if(RI==1){
P0=0x01;
if(rcv_flag==0)
i=0;
buffer[i]=SBUF;


i++;
rcv_flag=1;

RI=0;
}
else{ TI=0;}
}

void main(){
//unsigned char j;
unsigned char ca;
P0=0xFF;

set_baud();
synch();

IE=0x90;
do{

req_firmware();
//delay();
}
while(!rcv_flag);

IE=0x00;
P0=0x02;

for(ca=0;ca<10;ca++)
if(buffer[ca]!=test[ca])
match=0;

if(match)
P0=0xE7;




send_confirmation();




while(1);

}

This is my code for requesting firmware out of a nokia phone, now i implemented a similar code in visual C++ and works fine with my phone but with MCU and phone connection, i connected DTR to pin 2 and RTS to pin 6 of MAX 232 , and the rest RXD TXD GND accordingly, but wont work, i also connected DTR RTS from PC (while setting DTR high RTS low) into the circuit( just to provide the voltages to power up the datacable's circuitry) but wont work, i recieve nothing, my code works fine when connected mcu with pc, in Real Term or Hercules etc but wouldnt work with phone, is it a hardware problem??? my MCU circuit and Serial circuitry is working fine ... i've used both my breadboarded ckt and also the 8051 trainer i have, no hope, any help would be much appreciated!

I think your datacable is not enabling the FBUS. here is what i found, that might solve your problem.

connect the DTR pin to a +3 to 12 Volt supply and RTS to a -3 to -12Volt supply. The easy way to achieve this is by using a Max232 or similar transceiver for the RS232 TX and RX pins and then connecting the DTR pin on the serial cable to the V+ pin on the Max232. Do the same for the RTS, however connect it to the V- pin on the Max232. The V+ and V- pins are derived from internal charge pumps that double the input voltage. ie. for a 5V Max232, the V+ will +10V and the V- will be -10V. I hope this clears up this issue for most people!