pci9420.h

来自「CAN通讯的测试软件,数据可发送及接收,并能设置时间」· C头文件 代码 · 共 90 行

#include <windows.h>

// define data structure used in PCCAN
// used for config card 
struct PORT_CONFIG
{
	WORD workMode;           // 0 for 11-bit(CAN2.0A);
	                         // 1 for 29-bit(CAN2.0B)
	WORD filterMode;         // 0 for single filter mode, 
	                         // 1 for dual filter mode;
	DWORD accCode;           // accept code
	DWORD accMask;           // accept mask
	BYTE timer0;             // timer0 register (set baudrate)
	BYTE timer1;             // timer1 register
	BYTE control;            // enable interrupt
};

// used for select one port of card
struct PORT_STRUCT
{                                 
    BYTE card;               // index of card(start from 0)    
    BYTE channel;            // select one of channel(start from 0)
};

// CAN Packet used for sending/receiving data
struct CAN_PACKET 
{
	DWORD CAN_ID;           // CAN ID field (32-bit unsigned integer)
	BYTE  rtr;               // CAN RTR bit.
	BYTE  length;               // Length of data field.
	BYTE  data[8];           // Data (8 bytes maximum)
	DWORD time;             // Reserved for future use
	BYTE  reserved;           // Reserved byte
};

struct CAN_PACKET1000
{
	WORD         num;
	CAN_PACKET   packet[1000];
};

// used for select one port of card
struct PORT_REG
{  
   BYTE card;               // index of card(start from 0)    
   BYTE reg;                // one of register in SJA1000
   BYTE value;              // for Reading:  value read from one register
                            // for writting: value want to write to one register     // reserved
};

#ifdef __cplusplus    
extern "C" {          
#endif                
BOOL WINAPI   CAN_Open(void);
// Initialize and set IRQ function 
BOOL WINAPI   CAN_Init(PORT_STRUCT *ptrStuct,PORT_CONFIG *ptrConfig);

// read function 
BOOL WINAPI   CAN_Inquiry_Rece(PORT_STRUCT *ptrStruct);
BOOL WINAPI   CAN_Rece(PORT_STRUCT *ptrStruct,CAN_PACKET *ptrPacket);
BOOL WINAPI   CAN_Clear_RxBuffer(PORT_STRUCT *ptrStruct);
BOOL WINAPI   CAN_Get_RxBufferCount(PORT_STRUCT *ptrStruct);
BOOL WINAPI   CAN_Read_RxBuffer(PORT_STRUCT *ptrStruct,CAN_PACKET1000 *ptrPacket1000);

// send function
BOOL WINAPI   CAN_Inquiry_Trans(PORT_STRUCT *ptrStruct);
BOOL WINAPI   CAN_Trans(PORT_STRUCT *ptrStruct,CAN_PACKET *ptrPacket);

// read/write function
BOOL WINAPI   CAN_Read_Register(PORT_REG *ptrPortReg);       
BOOL WINAPI   CAN_Write_Register(PORT_REG *ptrPortReg); 

// enable/disable receive
BOOL WINAPI   CAN_Enable_Receive(PORT_STRUCT *ptrStruct);           
BOOL WINAPI   CAN_Disable_Receive(PORT_STRUCT *ptrStruct);
BOOL WINAPI   CAN_Inquiry_Status(PORT_STRUCT *ptrStruct);

// Attach event to specified card
BOOL WINAPI   CAN_Intr_Attach(HANDLE pEventHdl, BYTE card);

// reset and close function
BOOL WINAPI   CAN_Soft_Reset(PORT_STRUCT *ptrStruct);
BOOL WINAPI   CAN_Hard_Reset(PORT_STRUCT *ptrStruct);      
BOOL WINAPI   CAN_Close(void);

#ifdef __cplusplus   
}                    
#endif