STC micro STC8A8K64D4 Series - Page 446

STC8A8K64D4 Series Manual
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void UART1_config(u8 brt)
{
/*********** select Timer2 as baud rate generator *****************/
if(brt == 2)
{
AUXR |= 0x01; //S1 BRT Use Timer2;
SetTimer2Baudraye(Baudrate1);
}
/*********** select Timer1 as baud rate generator *****************/
else
{
TR1 = 0;
AUXR &= ~0x01; //S1 BRT Use Timer1;
AUXR |= (1<<6); //Timer1 set as 1T mode
TMOD &= ~(1<<6); //Timer1 set As Timer
TMOD &= ~0x30; //Timer1_16bitAutoReload;
TH1 = (u8)(Baudrate1 / 256);
TL1 = (u8)(Baudrate1 % 256);
ET1 = 0; //diable interrupt
INT_CLKO &= ~0x02; //does not output clock
TR1 = 1;
}
/*************************************************/
SCON = (SCON & 0x3f) | 0x40; //UART1 mode: 0x00: Synchronous shift output,
// 0x40: 8-bit data, variable baud rate,
// 0x80: 9-bit data, fixed baud rate,
// 0xc0: 9-bit data, variable baud rate
// PS = 1; //High priority
ES = 1; //enable interrupt
REN = 1; //enable recieving
P_SW1 &= 0x3f;
// P_SW1 |= 0x80; //UART1switch to: 0x00: P3.0 P3.1,
// 0x40: P3.6 P3.7,
// 0x80: P1.6 P1.7,
// 0xC0: P4.3 P4.4
B_TX1_Busy = 0;
TX1_Cnt = 0;
RX1_Cnt = 0;
}
//========================================================================
// function: void UART2_config(u8 brt)
// description: UART2 initialization function
// parameters: brt: baud rate selected, 2: select Timer2 as baud rate generator, other values: not valid.
// return: none.
// version: VER1.0
// date: 2014-11-28
// remark:
//========================================================================
void UART2_config(u8 brt)
{
if(brt == 2)
{
SetTimer2Baudraye(Baudrate2);