//使用F350,串口为P0.4,P0.5;
//-----------------------------------------------------------------------------
// 所包含的头文件
//------------------------------------------------------------------------
#include <c8051f350.h>
#include <stdio.h>
//-----------------------------------------------------------------------------
// 常量定义
//-----------------------------------------------------------------------------
#define SYSCLK 24500000 // 系统工作频率
#define BAUDRATE 9600 // 串口工作波特率
//-----------------------------------------------------------------------------
// F35x’定时器2的16位SFR
//-----------------------------------------------------------------------------
sfr16 TMR2RL = 0xca;
sfr16 TMR2 = 0xcc;
//-----------------------------------------------------------------------------
// 功能函数
//-----------------------------------------------------------------------------
void SYSCLK_Init (void);
void PORT_Init (void);
void UART0_Init (void);
void UART0_ISR (void);
bit ReceiveBit;
unsigned char temp;
/*延时程序*/
void delay(unsigned int m)
{
unsigned int n;
n=0;
while(n<m)
{n++;}
return;
}
//-----------------------------------------------------------------------------
// 主程序
//-----------------------------------------------------------------------------
void main (void) {
unsigned char i;
PCA0MD &= ~0x40; // 禁止看门狗
ReceiveBit=0;
PORT_Init(); // 初始化端口I/O
SYSCLK_Init (); // 初始化系统时钟
UART0_Init(); // 串口初始化
EA=1;
ES0=1;
while(1)
{
while(ReceiveBit==1)
{
ES0=0;
EA=0;
ReceiveBit=0;
delay(60000);
delay(60000);
delay(60000);
SBUF0=temp;
while(TI0==0);
TI0=0;
delay(60000);
delay(60000);
delay(60000);
ES0=1;
EA=1;
}
}
}
//-----------------------------------------------------------------------------
// 端口初始化
//-----------------------------------------------------------------------------
//
// Configure the Crossbar and GPIO ports.
//
// P0.4 - UART TX
// P0.5 - UART RX
void PORT_Init (void)
{
P0MDOUT |= 0x10; // 使能 UTX 为推挽输出
XBR0 = 0x01; // 使能 UART on P0.4(TX) and P0.5
XBR1 = 0x40;
}
//-----------------------------------------------------------------------------
// 系统时钟初始化
//-----------------------------------------------------------------------------
void SYSCLK_Init (void)
{
OSCICN |= 0x03; // 配置内部振荡器的的最大频率
RSTSRC = 0x04; // 使能始终丢失检测寄存器
}
//-----------------------------------------------------------------------------
// 串口初始化
//-----------------------------------------------------------------------------
void UART0_Init (void)
{
SCON0 = 0x10;
CKCON = 0x80;
TMOD = 0x20;
TH1=0X96;
TR1 = 1;
}
//-----------------------------------------------------------------------------
// 时钟2中断
//-----------------------------------------------------------------------------
void UART0_ISR (void) interrupt 4
{if(!TI0)
{
RI0=0;
temp=SBUF0;
ReceiveBit=1;
}
TI0=0;
}
