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)((65536UL - (MAIN_Fosc / 4) / Baudrate1) / 256);
TL1 = (u8)((65536UL - (MAIN_Fosc / 4) / Baudrate1) % 256);
ET1 = 0; //Disable interrupts
INTCLKO &= ~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 interrupt
ES = 1; //enable interrupt
REN = 1; //enable to receive
P_SW1 &= 0x3f;
P_SW1 |= 0x00; //UART1 switch to:
//0x00: P3.0 P3.1,
//0x40: P3.6 P3.7,
//0x80: P1.6 P1.7,
//0xC0: P4.3 P4.4
RX1_TimeOut = 0;
}
void UART1_int (void) interrupt 4
{
if(RI)
{
RI = 0;
Rx_cnt++;
if(Rx_cnt >= DMA_AMT_LEN) Rx_cnt = 0;
RX1_TimeOut = 5; //If no new data is received within 5ms, it is determined that a string
of data has been received.
}
if(TI)
{
TI = 0;
BusyFlag = 0;
}
}
void timer0 (void) interrupt 1
{
B_1ms = 1; //1ms flag
}
void UART1_DMA_Interrupt(void) interrupt 13
{
if (DMA_UR1T_STA & 0x01) //send completed
{
To Next Page
Loading...