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//-----------------------oˉêyéùÃ÷￡¬±äῶ¨òå--------------------------------------------------------
#include <reg51.h>
sbit RE_DE=P1^0;
#define COUNT 10 // ¶¨òå½óêÕ»o3åÇø′óD¡
#define ADD 5 //¶¨òåé豸μØÖ·
unsigned char buffer[COUNT]; //¶¨òå½óêÕ»o3åÇø
unsigned char point; //¶¨òå½óêÕêy¾Y¸öêyָ꾱äá¿
void UART_init(); //′®¿ú3õê¼»ˉoˉêy
void COM_send(void); //′®¿ú½óêÕoˉêy
unsigned char CLU_checkdata(void);//¼ÆËãD￡Ñéλoˉêy
//--------------------------------------------------------------------------------------------------
// oˉêyÃû3Æ￡o UART_init()′®¿ú3õê¼»ˉoˉêy
// oˉêy1|Äü￡o ÔúÏμí3ê±ÖóÎa11.059MHZê±￡¬é趨′®¿ú2¨ìØÂêÎa9600bit/s
// ′®¿ú½óêÕÖD¶ÏÔêDí￡¬·￠ËíÖD¶Ï½ûÖ1
//--------------------------------------------------------------------------------------------------
void UART_init()
{
//3õê¼»ˉ′®DD¿úoí2¨ìØÂê·￠éúÆ÷
SCON =0x0F0; //Ñ¡Ôñ′®¿ú1¤×÷·½ê½Îa3￡¬′ò¿a½óêÕÔêDí
TMOD =0x21; //¶¨ê±Æ÷11¤×÷Ôú·½ê½2￡¬¶¨ê±Æ÷01¤×÷Ôú·½ê½1
TH1 =0xfd; //êμÏÖ2¨ìØÂê9600￡¨Ïμí3ê±Öó11.0592MHZ￡©
TL1 =0xfd; //êμÏÖ2¨ìØÂê9600￡¨Ïμí3ê±Öó11.0592MHZ￡©
TR1 =1; //Æô¶ˉ¶¨ê±Æ÷T1
ET1 =0;
ES=1; //ÔêDí′®DD¿úÖD¶Ï
PS=1; //éè¼Æ′®DD¿úÖD¶ÏóÅÏ輶
EA =1; //μ￥Ƭ»úÖD¶ÏÔêDí
SM2=1; //é豸′|óúμØÖ·¼àìy×′ì¬
}
//--------------------------------------------------------------------------------------------------
// oˉêyÃû3Æ￡o com_interrup()′®¿ú½óêÕÖD¶Ï′|àíoˉêy
// oˉêy1|Äü￡o ½óêÕ°üà¨Æeê¼Î»0xFE￡¬μØַλoíÖÕÖ1λ0xEFÔúÄúμÄê®Î»êy¾Yμ½êy¾Y»o3åÇø￡¬
// μØÖ·2»Æ￥Åä￡¬Ôò½óêÕμ½μÄêÇÎTD§êy×Ö￡¬2»D′μ½½óêÕ»o3åÇø
//--------------------------------------------------------------------------------------------------
com_interrupt(void) interrupt 4 using 3
{
unsigned char RECEIVR_buffer;
if(RI)
{ //′|àí½óêÕÖD¶Ï
RI=0; //Çå3yÖD¶Ï±ê־λ
RECEIVR_buffer=SBUF; //½óêÕ′®¿úêy¾Y
if(point==0) //èç1û»1ûóD½óêÕμ½Æeê¼Î»
{
if(RECEIVR_buffer==0xFE) //ÅD¶ÏêÇ·ñÆeê¼±ê־λ
buffer[point++]=RECEIVR_buffer;//Æeê¼Õyè·￡¬½óêÕÆeê¼Î»
else
point=0; //2»êÇ￡¬¼ìDøμè′yÆeê¼Î»
}
else if(point==1) //êÇ·ñμØַλ
{
if(RECEIVR_buffer==ADD) //ÅD¶ÏμØÖ·êÇ·ñÆ￥Åä
buffer[point++]=RECEIVR_buffer;//μØÖ·Æ￥Åä￡¬½óêÕ¿aê¼½óêÕ
else
point=0; //2»Æ￥Åä￡¬¼ìDøÏÂò»¸öÆeê¼Î»
}
else if(point>0&&point<10) //ÅD¶ÏêÇ·ñ½óêÕ1»ê®Î»êy¾Y
buffer[point++]=RECEIVR_buffer; //2»1»￡¬°Ñ½óêÕμ½μÄêy¾Y·Åèë½óêÕ»o′æÇø
else point=0; //»o3åÇøòÑÂú￡¬Çå3y»o′æÇøÄúêy¾YÖØD½óêÕ
}
if(TI) //′®¿ú·￠ËíÖD¶Ï
{
TI=0; //Çå3y·￠ËíÖD¶Ï
}
}
//--------------------------------------------------------------------------------------------------
// oˉêyÃû3Æ￡o COM_send()′®¿ú·￠Ëíoˉêy
// oˉêy1|Äü￡o °Ñêy¾Y»o3åÇøμÄê®Î»êy¾Y·￠Ëí3öè￥
//--------------------------------------------------------------------------------------------------
void COM_send(void)
{
RE_DE=1; //éèÖÃMAX483½øèë·￠Ëí×′ì¬
for(point=0;point<=10,TI=1;point++) //á¬Dø·￠Ëíê®Î»êy¾Y
//°Ñ»o′æÇøμÄêy¾Y¶¼·￠Ëíμ½′®¿ú
{
SBUF=buffer[point];
TI=0;
}
RE_DE=0; //éèÖÃMAX483½øèë½óêÕ×′ì¬
}
//--------------------------------------------------------------------------------------------------
// oˉêyÃû3Æ￡o Ö÷oˉêy
// oˉêy1|Äü￡o μ÷¶è¸ö×óoˉêy￡¬íê3éí¨DÅ1y3ì
//--------------------------------------------------------------------------------------------------
void main(void)
{
UART_init(); //3õê¼»ˉ′®¿ú
do
{
}
while(point!=10); //ÅD¶Ïêy¾YêÇ·ñ½óêÕíê3é
COM_send(); //μØÖ·Æ￥Åä￡¬êy¾YíêÕû½óêÕ￡¬μ÷ó÷￠Ëí3ìDòí¨ÖaÖ÷»ú
SM2=0; //éèÖÃÎaμã¶Ôμãí¨DÅ×′ì¬
}
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