串口通信

void UART0_Init (void)

{

SCON0 = 0x10; //REN0=1允许接收 S0MODE=0串口工作方式0 （波特率可编程的8位UART）

CKCON = 0x08; //定时器3高字节使用系统时钟0x80 定时器2高字节使用系统时钟0x20 0x04

TMOD = 0x20; //自动重装载的8位计数器/定时器

// TCON = 0x40; //

TH1 = 0x2b;

TR1 = 1; //定时器1工作

}

//-----------------------------------------------------------------------------

// 时钟1中断串口中断

//-----------------------------------------------------------------------------

void UART0_ISR (void) interrupt 4

{

if (RI0 == 1)

{

if( UART_Buffer_Size == 0) // If new word is entered

{

UART_Input_First = 0;

}

RI0 = 0; // Clear interrupt flag

Byte = SBUF0; // Read a character from UART

if (UART_Buffer_Size < UART_BUFFERSIZE)

{

UART_Buffer[UART_Input_First] = Byte; // Store in array

UART_Buffer_Size++; // Update array's size

UART_Input_First++; // Update counter

}

}