?? commonmain.c
字號(hào):
#include "c8051f040.h"
#include"canreg.h"
sbit P1_0 = P1^0;
sbit P1_1 = P1^1;
sbit P1_2 = P1^2;
sbit P1_3 = P1^3;
#define LEN 8
#define addr 10
#define uint unsigned int
#define uchar unsigned char
xdata uchar recetimeout=0;
xdata uchar checkerror=0;
xdata uchar rr[16],sr[16],t[16],r[16];
xdata uchar count=0;
xdata uchar rececount=0;
bit receive_flag=0;
bit receive_ok=0;
bit CMDflag=0;
bit CMD0flag=0;
//字地址 0 - 255 (只取低8位)
//位地址 0 - 255 (只取低8位)
/* CRC 高位字節(jié)值表 */
const uint code auchCRCHi[] = {
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,
0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,
0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1,
0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1,
0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,
0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40,
0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1,
0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,
0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40,
0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,
0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,
0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,
0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,
0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40,
0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1,
0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,
0x80, 0x41, 0x00, 0xC1, 0x81, 0x40
} ;
/* CRC低位字節(jié)值表*/
const uint code auchCRCLo[] = {
0x00, 0xC0, 0xC1, 0x01, 0xC3, 0x03, 0x02, 0xC2, 0xC6, 0x06,
0x07, 0xC7, 0x05, 0xC5, 0xC4, 0x04, 0xCC, 0x0C, 0x0D, 0xCD,
0x0F, 0xCF, 0xCE, 0x0E, 0x0A, 0xCA, 0xCB, 0x0B, 0xC9, 0x09,
0x08, 0xC8, 0xD8, 0x18, 0x19, 0xD9, 0x1B, 0xDB, 0xDA, 0x1A,
0x1E, 0xDE, 0xDF, 0x1F, 0xDD, 0x1D, 0x1C, 0xDC, 0x14, 0xD4,
0xD5, 0x15, 0xD7, 0x17, 0x16, 0xD6, 0xD2, 0x12, 0x13, 0xD3,
0x11, 0xD1, 0xD0, 0x10, 0xF0, 0x30, 0x31, 0xF1, 0x33, 0xF3,
0xF2, 0x32, 0x36, 0xF6, 0xF7, 0x37, 0xF5, 0x35, 0x34, 0xF4,
0x3C, 0xFC, 0xFD, 0x3D, 0xFF, 0x3F, 0x3E, 0xFE, 0xFA, 0x3A,
0x3B, 0xFB, 0x39, 0xF9, 0xF8, 0x38, 0x28, 0xE8, 0xE9, 0x29,
0xEB, 0x2B, 0x2A, 0xEA, 0xEE, 0x2E, 0x2F, 0xEF, 0x2D, 0xED,
0xEC, 0x2C, 0xE4, 0x24, 0x25, 0xE5, 0x27, 0xE7, 0xE6, 0x26,
0x22, 0xE2, 0xE3, 0x23, 0xE1, 0x21, 0x20, 0xE0, 0xA0, 0x60,
0x61, 0xA1, 0x63, 0xA3, 0xA2, 0x62, 0x66, 0xA6, 0xA7, 0x67,
0xA5, 0x65, 0x64, 0xA4, 0x6C, 0xAC, 0xAD, 0x6D, 0xAF, 0x6F,
0x6E, 0xAE, 0xAA, 0x6A, 0x6B, 0xAB, 0x69, 0xA9, 0xA8, 0x68,
0x78, 0xB8, 0xB9, 0x79, 0xBB, 0x7B, 0x7A, 0xBA, 0xBE, 0x7E,
0x7F, 0xBF, 0x7D, 0xBD, 0xBC, 0x7C, 0xB4, 0x74, 0x75, 0xB5,
0x77, 0xB7, 0xB6, 0x76, 0x72, 0xB2, 0xB3, 0x73, 0xB1, 0x71,
0x70, 0xB0, 0x50, 0x90, 0x91, 0x51, 0x93, 0x53, 0x52, 0x92,
0x96, 0x56, 0x57, 0x97, 0x55, 0x95, 0x94, 0x54, 0x9C, 0x5C,
0x5D, 0x9D, 0x5F, 0x9F, 0x9E, 0x5E, 0x5A, 0x9A, 0x9B, 0x5B,
0x99, 0x59, 0x58, 0x98, 0x88, 0x48, 0x49, 0x89, 0x4B, 0x8B,
0x8A, 0x4A, 0x4E, 0x8E, 0x8F, 0x4F, 0x8D, 0x4D, 0x4C, 0x8C,
0x44, 0x84, 0x85, 0x45, 0x87, 0x47, 0x46, 0x86, 0x82, 0x42,
0x43, 0x83, 0x41, 0x81, 0x80, 0x40
} ;
uint CRC(uchar *p, uchar L)
{
uchar uchCRCHi = 0xFF ; /* 高CRC字節(jié)初始化 */
uchar uchCRCLo = 0xFF ; /* 低CRC 字節(jié)初始化 */
uchar uIndex ; /* CRC循環(huán)中的索引 */
while (L>=0) /* 傳輸消息緩沖區(qū) */
{
uIndex = uchCRCHi ^ *p++ ; /* 計(jì)算CRC */
uchCRCHi = uchCRCLo ^ auchCRCHi[uIndex] ;
uchCRCLo = auchCRCLo[uIndex] ;
L--;
}
return (uchCRCHi << 8 | uchCRCLo) ;
}
void beginsend(uchar r[])
{uchar i=0;
for(i=0;i<count;i++)
{ACC=r[i];
TB80=P;
SBUF0=r[i];
}
}
void start485send(uchar* p)
{
uint modbus16;
P1_1=1;
modbus16=CRC(p,count);
sr[count++]=modbus16>>8;
sr[count++]=modbus16&0xff;
beginsend(p);
CMDflag=0;
CMD0flag=0;
P1_1=0;
}
void Timer0() interrupt 1
{TL0=0X01;
TH0=0X01;
if(recetimeout>0)
{recetimeout--;
if(recetimeout==0&&rececount>0)
{rececount=0;
checkerror=0;
}
}
}
void ASK_repeat(uchar *p)
{uchar i=2;
uint crc_temp16;
sr[1]=0x80|sr[1];
crc_temp16=CRC(&sr,1);
sr[2]=crc_temp16>>8;
sr[3]=crc_temp16&0xff;
count=4;
beginsend(p);
}
void init_Msgobjeck_rx(uchar Msgnum,uchar Id)
{uint temp;
SFRPAGE=CAN0_PAGE;
CAN0ADR=IF2CMDMSK;
CAN0DAT=0X00bb;
/* IF2 Command Mask Registers =0x00bb
WR/RD=1,Mask=0,Arb=1,Control=1,ClrIntPnd=1,TxRqst=0,DataA=1,DataB=1,一次發(fā)送8字節(jié)數(shù)據(jù)*/
CAN0ADR=IF2ARB1;
CAN0DAT=0X0000;
temp=Id<<2;
temp&=0x1fff;
temp|=0x8000;
CAN0DAT=temp;
/*MsgVal=1,Xtd=0,為標(biāo)準(zhǔn)模式，擴(kuò)展ID無(wú)效，Dir=0，為接收*/
CAN0DAT=0X0488;
/*IF2 Message Control Registers=0x0488
NewDat=0,MsgLst=0,IntPnd=0,UMask=0,TxIE=0,RxIE=1,接收中斷使能;RmtEn=0,TxRqst=0
EoB=1,DLC3-0=1000,即數(shù)據(jù)長(zhǎng)度為8*/
CAN0ADR=IF2CMDRQST;
CAN0DATL=Msgnum;
}
void init_Msgobject_tx(uchar Msgnum,uchar Id)
{uint temp;
SFRPAGE=CAN0_PAGE;
CAN0ADR=IF1CMDMSK;
CAN0DAT=0X00b3;
/* IF1 Command Mask Registers =0x00b3
WR/RD=1,Mask=0,Arb=1,Control=1,ClrIntPnd=0,TxRqst=0,DataA=1,DataB=1,一次發(fā)送8字節(jié)數(shù)據(jù)*/
CAN0ADR=IF1ARB1;
CAN0DAT=0X0000;
temp=Id<<2;
temp&=0x1fff;
temp|=0xa000;
CAN0DAT=temp;
/*MsgVal=1,Xtd=0,為標(biāo)準(zhǔn)模式，擴(kuò)展ID無(wú)效，Dir=1，為發(fā)送*/
CAN0DAT=0X0088;
/*IF1 Message Control Registers=0x0088
NewDat=0,MsgLst=0,IntPnd=0,UMask=0,TxIE=0,RxIE=0,RmtEn=0,TxRqst=0
EoB=1,DLC3-0=1000,即數(shù)據(jù)長(zhǎng)度為8*/
CAN0ADR=IF2CMDRQST;
CAN0DAT=Msgnum;
}
void clear_Msgobjects()
{uchar i;
SFRPAGE=CAN0_PAGE;
CAN0ADR=IF1CMDMSK;
CAN0DAT=0X00FF;
for(i=1;i<33;i++)
{CAN0ADR=IF1CMDRQST;
CAN0DATL=i;
}
}
void command_receive(uchar Msgnum)
{uchar i;
P1_0=1;
SFRPAGE=CAN0_PAGE;
CAN0ADR=IF2CMDMSK;
CAN0DAT=0X000E;
CAN0ADR=IF2CMDRQST;
CAN0DAT=Msgnum;
CAN0ADR=IF2DATA1;
for(i=0;i<4;i+=2)
{sr[count++]=CAN0DATH;
sr[count++]=CAN0DATL;
if(count==2) count++;
}
P1_0=0;
}
void CMDinit_Msgobject_rx(uchar Msgnum,uchar Id)
{uint temp;
SFRPAGE=CAN0_PAGE;
CAN0ADR=IF2CMDMSK;
CAN0DAT=0X00ba;
/* IF2 Command Mask Registers =0x00bb
WR/RD=1,Mask=0,Arb=1,Control=1,ClrIntPnd=1,TxRqst=0,DataA=1,DataB=0,一次發(fā)送8字節(jié)數(shù)據(jù)*/
CAN0ADR=IF2ARB1;
CAN0DAT=0X0000;
temp=Id<<2;
temp&=0x1fff;
temp|=0x8000;
CAN0DAT=temp;
/*MsgVal=1,Xtd=0,為標(biāo)準(zhǔn)模式，擴(kuò)展ID無(wú)效，Dir=0，為接收*/
CAN0DAT=0X0484;
/*IF2 Message Control Registers=0x0484
NewDat=0,MsgLst=0,IntPnd=0,UMask=0,TxIE=0,RxIE=1,接收中斷使能;RmtEn=0,TxRqst=0
EoB=1,DLC3-0=0100,即數(shù)據(jù)長(zhǎng)度為8*/
CAN0ADR=IF2CMDRQST;
CAN0DAT=Msgnum;
}
void data_receive(uchar Msgnum)
{uchar i;
P1_0=1;
SFRPAGE=CAN0_PAGE;
CAN0ADR=IF2CMDMSK;
CAN0DAT=0X000F;
CAN0ADR=IF2CMDRQST;
CAN0DATL=Msgnum;
CAN0ADR=IF2DATA1;
for(i=0;i<LEN;i+=2)
{sr[count++]=CAN0DATH;
sr[count++]=CAN0DATL;
if(count==2) count++;
}
sr[2]=count+2;
P1_0=0;
}
void CANO_transist(uchar Msgnum)
{uchar i=0;
P1_3=1;
SFRPAGE=CAN0_PAGE;
CAN0ADR=IF1CMDMSK;
CAN0DAT=0X0087;
CAN0ADR=IF1DATA1;
for(i=3;i<rececount-2;i+=2)
{CAN0DATH=t[i++];
CAN0DATL=t[i++];
}
CAN0ADR=IF1CMDRQST;
CAN0DATL=Msgnum;
P1_3=0;
}
void ISR_UART0() interrupt 4
{
if (RI0)
{P1_2=1;
RI0=0;
recetimeout=3;
t[rececount]=SBUF0;
ACC=t[rececount];
if(P!=RB80)
checkerror=1;
if (rececount==0)
{if(addr!=t[rececount])
rececount=0;
else
rececount++;
}
else
{rececount++;
if(t[2]==rececount)
receive_flag=1;
else
receive_flag=0;
}
P1_2=0;
}
}
void ISRname () interrupt 19
{ uint xdata can0temp16;
uint xdata page_save;
uint xdata status;
page_save=SFRPAGE;
SFRPAGE=CAN0_PAGE;
status=CAN0STA;
if((status&0x10)!=0)
{CAN0STA&=0xef;
CAN0ADR=INTPEND1;
can0temp16=CAN0DAT;
if((can0temp16&0x0001)!=0)
{count=0;
command_receive(0x01);
if(sr[1]==0x01||sr[1]==0x02||sr[1]==0x03||sr[1]==0x04)
{ sr[2]=count+2;
CMD0flag=1;
}
}
if((can0temp16&0x0002)!=0)
{data_receive(0x02);
CMDflag=1;
}
}
SFRPAGE=page_save;
}
void SYSCLK_INIT()
{uint i;
OSCXCN=0X67;
for(i=0;i<256;i++)
{while(!(OSCXCN&0X80))
OSCICN=0X88;
}
}
void PORT_INIT()
{SFRPAGE=CONFIG_PAGE;
XBR0=0X04;
XBR1=0X00;
XBR2=0X40;
XBR3=0X80;
P0MDOUT=0X01;
}
void UART0_INIT()
{SFRPAGE=UART0_PAGE;
SCON0=0XD0;
PCON=0X00;
ES0=1;
SFRPAGE = TMR2_PAGE;
TMR2CN = 0x00;
TMR2CF = 0x08;
}
void TIMER_INIT()
{SFRPAGE = TIMER01_PAGE;
TMOD=0X01;
TH0=0X01;
TL0=0X01;
TR0=1;
ET0=1;
}
void INIT_GROUPS()
{
SYSCLK_INIT();
PORT_INIT();
UART0_INIT();
TIMER_INIT();
clear_Msgobjects();
CMDinit_Msgobject_rx(0x01,0x02);
init_Msgobjeck_rx(0x02,0x02);
init_Msgobject_tx(0x10,0x01);
EIE1=0X20;
SFRPAGE=CAN0_PAGE;
CAN0CN=0X41;
CAN0ADR=BITREG;
CAN0DAT=0X01;
CAN0CN=0X02;
}
void main()
{xdata uint temp16;
EA=0;
INIT_GROUPS();
EA=1;
while(1)
{if(CMDflag||CMD0flag)
{ start485send(&sr);}
if(receive_flag)
{ temp16=CRC(&t,rececount);
if(temp16==0)
receive_ok=1;
else
receive_ok=0;
if(receive_ok)
{ if(t[1]==(0x80|sr[1]))
ASK_repeat(&sr);
if(t[1]==sr[1])
CANO_transist(10);
else
checkerror=1;
}
}
}
}
?? 快捷鍵說(shuō)明
復(fù)制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號(hào)
Ctrl + =
減小字號(hào)
Ctrl + -