Post by thread:Asynchrone RX with another PIC in TX?

Hi everybody, I am trying to program two PIC (16C74A) one is a TX master in asynchrone and the other in RX master asynchrone. The problem is not the TX because i check it with a scope it works fine. But when i put the TX output of my first Pic in the RX input of the other PIC nothing works... What im trying to do is to get the other PIC to recognize the data, and light a led on PORTA 0 if its good and PORTA 1 if not... I cant figure out the problem... Here is my source in Hi-Tech C: #define BaudRate 25 // 2400 = 4MHz / 64(X+1) void initialise(); void main() { initialise(); while(1) { if(RCIF = 1) { if(RCREG == 36) {RA0 = 1; RA1 =0;} else {RA0 = 0; RA1 =1;} } } } void initialise() { GIE = 0; /* Disable les interruptions */ TRISA = 0x00; // 0000 0000 porta en output TRISB = 0x00; // 0000 0000 portb en output. TRISC = 0xC0; // 1100 0000 portc en 7:6 TX/RX /* configuration du USART pour un master asynchrone */ SPBRG = BaudRate; TXSTA = 0x82; // 1000 0000 ... Mode Master, USART asynchrone, Baudrate asynchrone RCSTA = 0xA6; // 1001 0110 ... Enable le Port serie TXIE = 0; // Disable the USART transmit interrupt RCIE = 0; // Disable reception interrupt GIE = 1; // Enable les interruptions } If anyone as an idea please let me know. Thanks all for the help!! Sylvain ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com