Hi, I am using P89V51RD2 NXP micro controller. I tried this code and able to transmit the char 's' for infinite time. Now i want to print/transmit it once. After removing the while(1) it print infinite time. What should i change in my program to transmit for one time?
// Program to test serial communication of controller with PC using hyper terminal #include<reg51.h> void ini() // Initialize Timer 1 for serial communication { TMOD=0x20; //Timer1, mode 2, baud rate 9600 bps TH1=0XFD; SCON=0x50; TR1=1; } void transmit() // Funtion to transmit serial data { SBUF='s'; while(TI==0); TI=0; } void main() { ini(); while(1) { transmit(); } } /
// Program to test serial communication of controller with PC using hyper terminal #include<reg51.h> void ini() // Initialize Timer 1 for serial communication { TMOD=0x20; //Timer1, mode 2, baud rate 9600 bps TH1=0XFD; SCON=0x50; TR1=1; } void transmit() // Funtion to transmit serial data { SBUF='s'; while(TI==0); TI=0; } void main() { ini(); transmit(); PCON = 0x02 ; // Power Down Mode for P89V51R(Set PD bit in PCON) }
Thank you, after the changes it work as desired. Now i am having problem with receiving a character.
void receive() { char value; while(RI==0) { } value=SBUF; }
Nothing is received to my controller.