LIN_send.rar_LIN CODE_LIN 程序_LIN代码_lin send_visual c

#include <hidef.h> /* for EnableInterrupts macro */ #include "derivative.h" /* include peripheral declarations */ #define LEDCPU PTBD_PTBD1 #define LEDCPU_dir PTBDD_PTBDD1 #define LED_ON 0 #define LED_OFF 1 #define BUZZ PTED_PTED5 #define BUZZ_dir PTEDD_PTEDD5 #define BIT(A,B) ((A>>B)&0x01) // A ?a㊣?芍? // B ㊣赤那?A?D米?米迆???? #define ID 0x30 // ID3??米?a0x30 #define EN PTED_PTED2 //LIN那1?邦 #define EN_dir PTEDD_PTEDD2 Bool a; struct message { unsigned char identifier; unsigned char data[8]; }; struct message msg_send; // ?“辰?LIN℅∩足? enum lin_state { IDLE, _BREAK, SYNCH, PROTECTED_IDENTIFIER, DATA0, DATA1, DATA2, DATA3, DATA4, DATA5, DATA6, DATA7, CHECKSUM }; // ?“辰????芍11足? struct frame { unsigned char protected_id; unsigned char data[8]; unsigned char check; enum lin_state state; unsigned char error; }; struct frame frame_send; /*************************************************************/ /* 3?那??‘℅邦??那㊣?車 */ /* 赤a2??∫???米?那?a8MHz㏒?℅邦???米?那8MHz */ /*************************************************************/ void INIT_MCG(void) { MCGC2=0x76; while(!MCGSC_OSCINIT); MCGC1=0xb8; while(MCGSC_IREFST); while(MCGSC_CLKST!=0b10); MCGC2_LP = 1; MCGC1 = 0x98; MCGC3 = 0x44; MCGC2_LP = 0; while(!MCGSC_PLLST); while(!MCGSC_LOCK); MCGC1 = 0x10; while(MCGSC_CLKST!=0b11); } /*************************************************************/ /* 3?那??‘?∩??1﹞ */ /*************************************************************/ void init_cop(void) { SOPT1 = 0x00; // 1??∩??1﹞ } /*************************************************************/ /* 3?那??‘LIN */ /*************************************************************/ void INIT_LIN(void) { unsigned char i; SCI1BDH = 0x00; SCI1BDL = 0x34; //谷豕??SCI12“足??那?a9600 SCI1C1 = 0x00; //谷豕??SCI1?a?y3㏒?㏒那?㏒?∼???那y?Y??㏒??T????D㏒?谷 SCI1C2 = 0x2c; //?那D赤?車那?o赤﹞⊿?赤那y?Y㏒??那D赤?車那??D??1|?邦 SCI1S2_BRK13 = 1; frame_send.protected_id=0; frame_send.state=IDLE; frame_send.error=0; frame_send.check=0; for (i=0;i<8;i++) frame_send.data[i]=0; } /*************************************************************/ /* ?車那㊣o‘那y */ /*************************************************************/ void delay(void) { unsigned int i; for(i=0;i<50000;i++); } /*************************************************************/ /* ????????D㏒?谷?? */ /*************************************************************/ unsigned char LINCalcParity(unsigned char id) { unsigned char parity, p0,p1; parity=id; p0=(BIT(parity,0)^BIT(parity,1)^BIT(parity,2)^BIT(parity,4))<<6; //??D㏒?谷?? p1=(!(BIT(parity,1)^BIT(parity,3)^BIT(parity,4)^BIT(parity,5)))<<7; //??D㏒?谷?? parity|=(p0|p1); return parity; } /*************************************************************/ /* ????o赤D㏒?谷?? */ /*************************************************************/ unsigned char LINCalcChecksum(unsigned char *data) { unsigned int sum = 0; unsigned char i; for(i = 0; i < 8; i++) { sum += data[i]; if(sum&0xFF00) sum = (sum&0x00FF) + 1; } sum ^= 0x00FF; return (unsigned char)sum; } /*************************************************************/ /* ﹞⊿?赤?足2ao‘那y */ /*************************************************************/ Bool LINCheckSend(enum lin_state status, unsigned char val) { // 米豕∩y∩??迆那y?Y?車那?米??a?1 while(frame_send.state < status) if(frame_send.error) return(FALSE); switch(status) { case _BREAK: case SYNCH: break; case PROTECTED_IDENTIFIER: if(frame_send.protected_id != val) return(FALSE); break; case DATA0: case DATA1: case DATA2: case DATA3: case DATA4: case DATA5: case DATA6: case DATA7: if(frame_send.data[status-DATA0] != val) return(FALSE); break; case CHECKSUM: if(frame_send.check != val) return(FALSE); break; } return(TRUE); } /*************************************************************/ /* LIN﹞⊿?赤℅??迆o‘那y */ /*************************************************************/ Bool LINSendChar(unsigned char ch) { while(!SCI1S1_TDRE); //米豕∩y﹞⊿?赤那y?Y??∩??‾㏒“?o3??‾㏒??a?? SCI1D = ch; return(TRUE); } /*************************************************************/ /* LIN﹞⊿?赤????3? */ /*************************************************************/ Bool LINSendbreak(void) { while(!SCI1S1_TDRE); //米豕∩y﹞⊿?赤那y?Y??∩??‾㏒“?o3??‾㏒??a?? SCI1C2_SBK = 1; //?車芍D∩y﹞⊿?赤米??D?1℅?﹞? SCI1C2_SBK = 0; //﹞米???y3㏒﹞⊿?赤2迄℅‾ return(TRUE); } /*************************************************************/ /* LIN﹞⊿?赤D??⊿o‘那y */ /*************************************************************/ Bool LINSendMsg(void) { unsigned char check_sum, parity_id, i; frame_send.error = 0; // ﹞⊿?赤????3? if(!LINSendbreak()) return(FALSE); // ?足2谷????3?﹞⊿?赤 if(!LINCheckSend(_BREAK,0x00)) return(FALSE); // ﹞⊿?赤赤?2?3? if(!LINSendChar(0x55)) return(FALSE); // ?足2谷赤?2?3?﹞⊿?赤 if(!LINCheckSend(SYNCH,0x55)) return(FALSE); // ????????D㏒?谷 parity_id=LINCalcParity(msg_send.identifier); // ﹞⊿?赤㊣那那?﹞?3? if(!LINSendChar(parity_id)) return(FALSE); // ?足2谷㊣那那?﹞?3?﹞⊿?赤 if(!LINCheckSend(PROTECTED_IDENTIFIER, parity_id)) return(FALSE); for(i=0; i < 8; i++) { // ﹞⊿?赤那y?Y3? if(!LINSendChar(msg_send.data[i])) return(FALSE); // ?足2谷那y?Y3?﹞⊿?赤 if(!LINCheckSend(DATA0+i, msg_send.data[i])) return(FALSE); } check_sum = LINCalcChecksum(msg_send.data); // ﹞⊿?赤D㏒?谷o赤3? if(!LINSendChar(check_sum)) return(FALSE); // ?足2谷D㏒?谷o赤3?﹞⊿?赤 if(!LINCheckSend(CHECKSUM, check_sum)) return(FALSE); frame_send.state = IDLE; return(TRUE); } /*************************************************************/ /* LIN?車那?℅??迆o‘那y */ /*************************************************************/ Bool LINGetChar(void) { unsigned volatile char ch; // LIN?車那?赤“米角℅∩足? switch(frame_send.state) { case IDLE: if(!(SCI1S1&0x22)) return(FALSE); if(SCI1D) return(FALSE); break; case _BREAK: if(!(SCI1S1&0x20)) return(FALSE); if(SCI1D != 0x55) return(FALSE); break; case SYNCH: if(!(SCI1S1&0x20)) return(FALSE); ch = SCI1D; frame_send.protected_id = ch; break; case PROTECTED_IDENTIFIER: case DATA0: case DATA1: case DATA2: case DATA3: case DATA4: case DATA5: case DATA6: if(!(SCI1S1&0x20)) return(FALSE); ch = SCI1D; fra