有人能帮我改一下程序吗,真不会
要求如下：利用串口助手，通过串口助手发送0，则流水灯左移，同时数码管显示管显示0。发送1，则流水灯右移，同时数码管显示管显示1。发送2，则流水灯中间向两端发散，同时数码管显示管显示2。发送3，则流水灯全灭，同时数码管显示管显示3。发送4，则流水灯全亮，同时数码管显示管显示4。
#include <reg52.h>
sbit ADDR3 = P1^3;
sbit ENLED = P1^4;
unsigned char code LedChar[] = {
0xC0, 0xF9, 0xA4, 0xB0, 0x99, 0x92, 0x82, 0xF8,
0x80, 0x90, 0x88, 0x83, 0xC6, 0xA1, 0x86, 0x8E
};
unsigned char LedBuff[7] =
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
};
unsigned char T0RH = 0;
unsigned char T0RL = 0;
unsigned char RxdByte = 0;
unsigned char flag200ms = 0;
unsigned char flagLight = 1;
void ConfigTimer0(unsigned int ms);
void ConfigUART(unsigned int baud);
void FlowingLight();
void main()
{
EA = 1;
ENLED = 0;
ADDR3 = 1;
ConfigTimer0(1);
ConfigUART(9600);
while (1)
{
if (flagLight == 0)
{
LedBuff[6] = 0xFF;
}
else
{
if (flag200ms != 0)
{
flag200ms = 0;
FlowingLight();
}
} LedBuff[0] = LedChar[RxdByte & 0x0F];
LedBuff[1] = LedChar[RxdByte >> 4];
}
}void FlowingLight()
{
static unsigned char dir = 0;
static unsigned char shift = 0x01;
LedBuff[6] = ~shift;
if (dir == 0)
{
shift = shift << 1;
if (shift == 0x80)
{
dir = 1;
}
}
else
{
shift = shift >> 1;
if (shift == 0x01)
{
dir = 0;
}
}
}void ConfigTimer0(unsigned int ms)
{
unsigned long tmp;
tmp = 11059200 / 12;
tmp = (tmp * ms) / 1000;
tmp = 65536 - tmp;
tmp = tmp + 13;
T0RH = (unsigned char)(tmp>>8);
T0RL = (unsigned char)tmp;
TMOD &= 0xF0;
TMOD |= 0x01;
TH0 = T0RH;
TL0 = T0RL;
ET0 = 1;
TR0 = 1;
}
void ConfigUART(unsigned int baud)
{
SCON = 0x50;
TMOD &= 0x0F;
TMOD |= 0x20;
TH1 = 256 - (11059200/12/32)/baud;
TL1 = TH1;
ET1 = 0;
ES = 1;
TR1 = 1;
}void LedScan()
{
static unsigned char i = 0;
P0 = 0xFF;
P1 = (P1 & 0xF8) | i;
P0 = LedBuff[i];
if (i < 6)
i++;
else
i = 0;
}void InterruptTimer0() interrupt 1
{
static unsigned char tmr200ms = 0;
TH0 = T0RH;
TL0 = T0RL;
LedScan();
tmr200ms++;
if (tmr200ms >= 200)
{
tmr200ms = 0;
flag200ms = 1;
}
}void InterruptUART() interrupt 4
{
if (RI)
{
RI = 0;
RxdByte = SBUF;
SBUF = RxdByte;
flagLight = !flagLight;
}
if (TI)
{
TI = 0;
}
}
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