Posted on May 17, 2011 at 12:09 Hi, I'm trainning unsucessfully to set up the uart1 at 19200 bps using timer1 / 40MHz clk. I've changed all stuff on the mcu getting just a high level output on P1_3. What would be missing in set-up code ?? uPSD looks like running well for I/O port's working routines. P1SFS0 = 0x0C; SCON = 0x70; SCON1 = 0x70; T2CON = 0xC0; TMOD = 0x22; PCON = 0x40; IE = 0x00; IEA = 0x12; IP = 0x00; IPA = 0x00; TI1 = 1; ET1 = 1; PT1 = 1; TH1 = 0xF5; TCON = 0x40; any help would be appreciate, thanks in advance, ic