Hi all,

Is there any special note on using UART of AT89C52 with baudrate generator mode of its Timer2?

Upon transmitting string, the first character transmitted seems to be unpredictable. I use polled transmitting and receiving.

The snippet:
void ser_init( unsigned int rate ) {
// Timer2 setup
TH2 = RCAP2H = rate >> 8;
TL2 = RCAP2L = rate;
SCON = 0x72; // Mode 1, REN 1
T2CON = 0x34; // TR2 = 1;
}