CCP协议源码

该为CCP协议的源代码，包括命令处理机和DAQ处理机，符合CCP2.1标准。集成到单片机后可以与上位机软件CANape等进行标定。

typedef struct ccpOdtEntry {
	unsigned char        *ptr;
} ccpOdtEntry_t;
typedef ccpOdtEntry_t ccpODT_t[7];
typedef struct ccpDaqList {
	ccpODT_t    odt[3];
	unsigned short           prescaler;
	unsigned short           cycle;
	unsigned char            eventChannel;
	unsigned char            last;
	unsigned char            flags;
} ccpDaqList_t;
typedef struct {
	unsigned char     b[8];
} ccpMsg_t;
typedef struct {
	unsigned char         len;
	unsigned char         rp;
	ccpMsg_t msg[（3 * 2）];
} ccpQueue_t;
struct ccp {
	unsigned char     Crm[8];
	unsigned char     SessionStatus;
	unsigned char     SendStatus;
	unsigned char        *              MTA[2];
	ccpQueue_t Queue;
	ccpOdtEntry_t *DaqListPtr;
	ccpDaqList_t   DaqList[2];
	unsigned char     UserSessionStatus;
	unsigned short    CheckSumSize;
};
extern  struct ccp ccp;
extern void ccpInit（void）;
extern void ccpDaq（unsigned char     eventChannel）;
extern void ccpCommand（unsigned char *           msg）;
extern unsigned char     ccpSendCallBack（void）;
void ccpSendCrm（void）;
extern unsigned char     ccpBackground（void）;
extern void ccpSend（unsigned char *           msg）;
extern void ccpUserBackground（void）;
extern unsigned char        *              ccpGetPointer（unsigned char     addr_ext unsigned long      addr）;

unsigned char     ccpStationId[] = “ECU00001“;
struct ccp ccp;
void ccpSendCrm（void） {
	;
	if （ccp.SendStatus&（0x20 | 0x10 | 0x40）） {
		ccp.SendStatus |= 0x01;
	}
	else {
		ccp.SendStatus |= 0x10;
		ccpSend（ccp.Crm）;
	}
	;
}
void ccpQueueInit（void） {
	ccp.Queue.len = 0;
	ccp.Queue.rp = 0;
}
unsigned char     ccpQueueWrite（ccpMsg_t *msg） {
	if （ccp.Queue.len >= （3 * 2）） return 0;
	ccp.Queue.msg[（ccp.Queue.rp + ccp.Queue.len） % （3 * 2）] = *msg;
	ccp.Queue.len++;
	return 1;
}
static unsigned char     ccpWriteMTA（unsigned char     n unsigned char     size unsigned char *           d） {
	while （size-->0） {
		*（ccp.MTA[n]） = *d;
		ccp.MTA[n]++;
		d++;
	}
	return 1;
}
static void ccpReadMTA（unsigned char     n unsigned char     size unsigned char *           d） {
	while （size-->0） {
		*d = *（ccp.MTA[n]）;
		d++;
		ccp.MTA[n]++;
	}
}
static unsigned char     ccpClearDaqList（unsigned char     daq） {
	unsigned char *           p;
	unsigned char *           pl;
	if （daq >= 2） return 0;
	p = （unsigned char *）&ccp.DaqList[daq];
	pl = p + sizeof（ccpDaqList_t）;
	while （p	ccp.SessionStatus |= 0x02;
	ccpQueueInit（）;
	return 3;
}
static unsigned char     ccpPrepareDaq（unsigned char     daq unsigned char     last unsigned char     eventChannel unsigned short    prescaler） {
	if （daq >= 2） return 0;
	ccp.DaqList[daq].eventChannel = eventChannel;
	if （prescaler == 0） prescaler = 1;
	ccp.DaqList[daq].prescaler = prescaler;
	ccp.DaqList[daq].cycle = 1;
	ccp.DaqList[daq].last = last;
	ccp.DaqList[daq].flags = 0x04;
	return 1;
}
static unsigned char     ccpStartDaq（unsigned char     daq

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     文件       10217  2017-11-19 08:38  CCP.c