Interfacing 89C51 Microcontroller with PC using UART

[Sathiesh Kumar]

I am interfacing 89c51 microcontroller with PC using UART... when i used the code below.. i can used to send and receive the messages in hyperterminal but its not the actual message.. for example if i send Z from PC, microcontroller returns it back by [ ... if i send w from PC , microcontroller returns back by sending u ... what might be the problem.. i also checked it for different baud rates.... i have used max232 ic in between microcontroller and rs232...
Compiler:MikroC for 8051
please check it...

char uart_rd;

void main() {
  
  UART1_Init(4800);               // Initialize UART module at 4800 bps
  Delay_ms(100);                  // Wait for UART module to stabilize
  
  UART1_Write_Text("Start");
  while (1) {                     // Endless loop
    if (UART1_Data_Ready()) {     // If data is received,
      uart_rd = UART1_Read();     //   read the received data,
      UART1_Write(uart_rd);       //   and send data via UART
    }
  }
}

 

[srikanthsamaga]

Check stop bits, and also no. of data bits used...