I use an RF 315/434 MHz ASK RECEIVER and 315/434 MHz ASK TRANSMITTER for the communication between two 89c52 microcontrollers. I am a beginner. In the transmitter microcontroller i use the normal code for transmission of 1,2,3... by using sending some filters 'A' then 'B' and data and then 'Z' to check whether the data is receiving correctly. i use SMOD 0x50 TMOD 0x20 baud rate 9600. in the main loop
for(i=0;i<100;i++) { led=0x00; serial_tx('A'); led=0x01; serial_tx('B'); led=0x01; serial_tx(i); led=0x01; serial_tx('Z'); led=0x01; msdelay(); }
in debugger when i is 0 it shows the value i=0x00; when i is 1, i=0x01...
and in the receiver same SMOD 0x50, TMOD 0x20 baud rate 9600, in serial_read() temp=SBUF is stored
unsigned char temp, temp1, store; while(1) { serial_read(); if(temp=='A') { serial_read(); if(temp=='B') { serial_read(); temp1=temp; serial_read(); if(temp=='Z') { P1=temp1; // data stored and sent to port1 } } } }
here port 1 is connected with 8 led. but i am not sure of how the data sequence is being received. The lights are blinking with some randomness. Any solution regarding this. And the data sent to P1 is in binary ? Thanks in advance.
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