选择串口模式,19200波特率,取消RTS,DTR,点击发送用户自定义命令并开始下载
测试能直接烧录程序,省去了手动按复位键的烦恼!
不错，很详细，有用，收藏先 忘记发代码了,全部代码如下:#include "STC\STC8H.h"
#include "INTRINS.H"
#include <STRING.H>
#define uchar unsigned char
#define uint unsigned int
bit send_busy;
uchar recv_timeout;
struct BUFF_DATA
{
uchar rptr;
uchar wptr;
char buff;
};
struct BUFF_DATA xdata uart_buff,xdata str_buff;
#define BUFF_POP(x) x.buff
#define BUFF_PUSH(x,d) x.buff = d
#define BUFF_HAS_DATA(x) (x.rptr != x.wptr)
#define BUFF_RESET(x) x.rptr=0;x.wptr=0
#define PBUFF_POP(x) x->buff
#define PBUFF_PUSH(x,d) x->buff = d
#define PBUFF_HAS_DATA(x) (x->rptr != x->wptr)
#define PBUFF_RESET(x) x->rptr=0;x->wptr=0
void Delay1ms(void) //@5.5296MHz
{
unsigned char data i, j;
_nop_();
_nop_();
i = 8;
j = 43;
do
{
while (--j);
} while (--i);
}
void Delay_ms(uint times) //@5.5296MHz
{
unsigned char data i, j;
while (times-->0)
{
_nop_();
_nop_();
i = 8;
j = 43;
do
{
while (--j);
} while (--i);
}
}
void Uart1_Isr(void) interrupt 4
{
if (TI)
{
TI = 0;
send_busy = 0;
}
if (RI)
{
RI = 0;
BUFF_PUSH(uart_buff,SBUF);
recv_timeout = 5;
}
}
void Uart1_Init(void) //19200bps@5.5296MHz
{
SCON = 0x50; //8位数据,可变波特率
AUXR &= 0xBF; //定时器时钟12T模式
AUXR &= 0xFE; //串口1选择定时器1为波特率发生器
TMOD &= 0x0F; //设置定时器模式
TL1 = 0xFA; //设置定时初始值
TH1 = 0xFF; //设置定时初始值
ET1 = 0; //禁止定时器中断
TR1 = 1; //定时器1开始计时
ES = 1; //使能串口1中断
EA = 1;
send_busy = 0;
BUFF_RESET(uart_buff);
}
void UartSend(char dat)
{
while(send_busy);
send_busy = 1;
SBUF = dat;
}
void UartSendStr(char *p)
{
while(*p)
UartSend(*p++);
}
/*
void UartSendBuff(struct BUFF_DATA xdata *d)
{
while(PBUFF_HAS_DATA(d))
{
UartSend(PBUFF_POP(d));
}
}
*/
void DealString(char *p)
{
if(strcmp(p,"hello") == 0)
{
UartSendStr("world!");
}
else if(strcmp(p,"reboot") == 0)
{
Delay_ms(2000);
UartSendStr("bye!");
IAP_CONTR = 0x60;
}
else
{
UartSendStr(p);
}
}
void main()
{
uchar xdata tmp;
Uart1_Init();
UartSendStr("Uart Test!\r\n");
while(1)
{
if(recv_timeout>0)
{
BUFF_RESET(str_buff);
while(recv_timeout>0)
{
while(BUFF_HAS_DATA(uart_buff))
{
tmp = BUFF_POP(uart_buff);
BUFF_PUSH(str_buff,tmp);
}
recv_timeout--;
Delay1ms();
}
BUFF_PUSH(str_buff,0);
DealString(str_buff.buff);
}
/*if(BUFF_HAS_DATA(uart_buff))
{
UartSend(BUFF_POP(uart_buff));
}*/
}
}
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