TMS320F28335 CAN BUS 中斷接收函數內的變數無法更新

各為群上的先進您好

目前在下遇到的問題是在CAN 接收中斷內無法更新變數，但

MAIL BOX暫存器內的數值是會隨CAN BUS傳入的數值做變化

以下是在下的Coding

#include "DSP28x_Project.h"// DSP281x Headerfile Include File
int int0count = 0; // Counter to track the # of level 0 interrupts
int int1count = 0; // Counter to track the # of level 1 interrupts
volatile unsigned int MLBX16_HD = 0;
volatile unsigned int MLBX16_LD = 0;
unsigned int MLBX17_HD = 0;
unsigned int MLBX17_LD = 0;
unsigned int message = 0;
int elsecount = 0;


interrupt void eCAN0INT_ISR(void);
void ECan_MALBOX_INIT(void);
struct ECAN_REGS ECanaShadow;

void main()
{
	InitSysCtrl();

	InitECanGpio();

	DINT;

	InitPieCtrl();

	IER = 0x0000;
	IFR = 0x0000;

	InitPieVectTable();

	// Initialize the CAN module //
	InitECan();

	//InitPieVectTable();
	ECan_MALBOX_INIT();

	EALLOW;
	// Configure CAN interrupts //
	ECanaShadow.CANMIM.all = 0xFFFFFFFF;
	//ECanaRegs.CANMIM.all = ECanaShadow.CANMIM.all;

	ECanaShadow.CANMIL.all = 0x00000000; // MBOX0 asserts MTOF0 (eCAN0INT)
	//ECanaShadow.CANMIL.bit.MIL0 = 1 ; // MBOX0 asserts MTOF1 (eCAN1INT)
	ECanaRegs.CANMIL.all = ECanaShadow.CANMIL.all;

	ECanaShadow.CANMIM.all = 0xFFFFFFFF; // Enable interrupts for all mailboxes
	ECanaRegs.CANMIM.all = ECanaShadow.CANMIM.all;

	//ECanaShadow.CANGIF0.all = ECanaRegs.CANGIF0.all;
	//ECanaShadow.CANGIF0.all = 0xFFFFFFFF;
	//ECanaRegs.CANGIF0.all = ECanaShadow.CANGIF0.all;

	//ECanaShadow.CANGIM.all = ECanaRegs.CANGIM.all;
	ECanaShadow.CANGIM.all = 0;
	ECanaShadow.CANGIM.bit.I0EN = 1; // Enable eCAN0INT
	//ECanaShadow.CANGIM.bit.I1EN = 1; // Enable eCAN1INT
	//ECanaShadow.CANGIM.bit.MTOM = 1; // Enable MBX Timeout interrupt
	ECanaRegs.CANGIM.all = ECanaShadow.CANGIM.all;

	PieVectTable.ECAN0INTA = &eCAN0INT_ISR;
	//PieVectTable.ECAN1INTA = &eCAN1INT_ISR;

	EDIS;

	PieCtrlRegs.PIECTRL.bit.ENPIE = 1; // Enable vector fetching from PIE block
	PieCtrlRegs.PIEACK.bit.ACK9 = 1; // Enables PIE to drive a pulse into the CPU
	PieCtrlRegs.PIEIER9.bit.INTx5 = 1; // Enable INTx.5 of INT9 (eCAN0INT)
	//PieCtrlRegs.PIEIER9.bit.INTx6 = 1; // Enable INTx.6 of INT9 (eCAN1INT)


	IER |= M_INT9; // Enable INT9 of CPU
	EINT; // Global enable of interrupts
	//ERTM;

	for(;;)
	{
		message = MLBX16_HD<<8;
		message |= MLBX16_LD;
	}

}

void ECan_MALBOX_INIT()
{
	//struct ECAN_REGS ECanaShadow;
	// Config Transmit mail box ID  //
	ECanaMboxes.MBOX0.MSGID.all =  0x80000501;  // Extended Identifier
	ECanaMboxes.MBOX1.MSGID.all  = 0x80000502;  //
	ECanaMboxes.MBOX2.MSGID.all  = 0x80000503;  //
	ECanaMboxes.MBOX3.MSGID.all  = 0x80000504;  //
	ECanaMboxes.MBOX4.MSGID.all  = 0x80000505;  //
	ECanaMboxes.MBOX5.MSGID.all  = 0x80000506;  //
	ECanaMboxes.MBOX6.MSGID.all  = 0x80000507;  //
	ECanaMboxes.MBOX7.MSGID.all  = 0x80000508;  //
	ECanaMboxes.MBOX8.MSGID.all  = 0x80000509;  //
	ECanaMboxes.MBOX9.MSGID.all  = 0x80000510;  //
	ECanaMboxes.MBOX10.MSGID.all = 0x80000511;  //
	ECanaMboxes.MBOX11.MSGID.all = 0x80000512;  //
	ECanaMboxes.MBOX12.MSGID.all = 0x80000513;  //
	ECanaMboxes.MBOX13.MSGID.all = 0x80000514;  //
	ECanaMboxes.MBOX14.MSGID.all = 0x80000515;  //
	ECanaMboxes.MBOX15.MSGID.all = 0x80000516;  //

	// Config Receive mail box ID //ECanaMboxes.MBOX16.MSGID.all = 0x80000601;  //ECanaMboxes.MBOX17.MSGID.all = 0x80000602;  //ECanaMboxes.MBOX18.MSGID.all = 0x80000603;  //ECanaMboxes.MBOX19.MSGID.all = 0x80000604;  //ECanaMboxes.MBOX20.MSGID.all = 0x80000605;  //ECanaMboxes.MBOX21.MSGID.all = 0x80000606;  //ECanaMboxes.MBOX22.MSGID.all = 0x80000607;  //ECanaMboxes.MBOX23.MSGID.all = 0x80000608;  //ECanaMboxes.MBOX24.MSGID.all = 0x80000609;  //ECanaMboxes.MBOX25.MSGID.all = 0x80000610;  //ECanaMboxes.MBOX26.MSGID.all = 0x80000611;  //ECanaMboxes.MBOX27.MSGID.all = 0x80000611;  //ECanaMboxes.MBOX28.MSGID.all = 0x80000613;  //ECanaMboxes.MBOX29.MSGID.all = 0x80000614;  //ECanaMboxes.MBOX30.MSGID.all = 0x80000615;  //ECanaMboxes.MBOX31.MSGID.all = 0x80000616;  //

	// Write to DLC field in Master Control reg //
	ECanaMboxes.MBOX0.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX1.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX2.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX3.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX4.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX5.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX6.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX7.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX8.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX9.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX10.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX11.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX12.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX13.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX14.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX15.MSGCTRL.bit.DLC = 8;

	ECanaMboxes.MBOX16.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX17.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX18.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX19.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX20.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX21.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX22.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX23.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX24.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX25.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX26.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX27.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX28.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX29.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX30.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX31.MSGCTRL.bit.DLC = 8;

	// Configure Mailbox under test as a Transmit & Receive mailbox //

	ECanaShadow.CANMD.all = ECanaRegs.CANMD.all;
	ECanaShadow.CANMD.all = 0xFFFF0000;
	ECanaRegs.CANMD.all = ECanaShadow.CANMD.all;

	// Enable Mailbox under test //

	ECanaShadow.CANME.all = ECanaRegs.CANME.all;
	ECanaShadow.CANME.all = 0xFFFFFFFF;
	ECanaRegs.CANME.all = ECanaShadow.CANME.all;
}

interrupt void eCAN0INT_ISR(void) // eCAN
{
	if(ECanaRegs.CANRMP.bit.RMP16 == 1)
	{
		int0count++;
		ECanaRegs.CANRMP.bit.RMP16 = 1;
		MLBX16_HD = ECanaMboxes.MBOX16.MDH.all;
		MLBX16_LD = ECanaMboxes.MBOX16.MDL.all;
		PieCtrlRegs.PIEACK.bit.ACK9 = 1;
		EINT;
	}
	else if(ECanaRegs.CANRMP.bit.RMP17 == 1)
	{
		int1count++;
		ECanaRegs.CANRMP.bit.RMP17 = 1;
		MLBX17_HD = ECanaMboxes.MBOX17.MDH.all;
		MLBX17_LD = ECanaMboxes.MBOX17.MDL.all;
		PieCtrlRegs.PIEACK.bit.ACK9 = 1;
		EINT;
	}


	else
	elsecount++;
}
 /*CANalyzer configuration file: 1M80SPRX.cfg... */

DI ZHOU1：

你能进去中断吗？能具体描述一下你的code是哪里出了问题么？

各為群上的先進您好

目前在下遇到的問題是在CAN 接收中斷內無法更新變數，但

MAIL BOX暫存器內的數值是會隨CAN BUS傳入的數值做變化

以下是在下的Coding

#include "DSP28x_Project.h"// DSP281x Headerfile Include File
int int0count = 0; // Counter to track the # of level 0 interrupts
int int1count = 0; // Counter to track the # of level 1 interrupts
volatile unsigned int MLBX16_HD = 0;
volatile unsigned int MLBX16_LD = 0;
unsigned int MLBX17_HD = 0;
unsigned int MLBX17_LD = 0;
unsigned int message = 0;
int elsecount = 0;


interrupt void eCAN0INT_ISR(void);
void ECan_MALBOX_INIT(void);
struct ECAN_REGS ECanaShadow;

void main()
{
	InitSysCtrl();

	InitECanGpio();

	DINT;

	InitPieCtrl();

	IER = 0x0000;
	IFR = 0x0000;

	InitPieVectTable();

	// Initialize the CAN module //
	InitECan();

	//InitPieVectTable();
	ECan_MALBOX_INIT();

	EALLOW;
	// Configure CAN interrupts //
	ECanaShadow.CANMIM.all = 0xFFFFFFFF;
	//ECanaRegs.CANMIM.all = ECanaShadow.CANMIM.all;

	ECanaShadow.CANMIL.all = 0x00000000; // MBOX0 asserts MTOF0 (eCAN0INT)
	//ECanaShadow.CANMIL.bit.MIL0 = 1 ; // MBOX0 asserts MTOF1 (eCAN1INT)
	ECanaRegs.CANMIL.all = ECanaShadow.CANMIL.all;

	ECanaShadow.CANMIM.all = 0xFFFFFFFF; // Enable interrupts for all mailboxes
	ECanaRegs.CANMIM.all = ECanaShadow.CANMIM.all;

	//ECanaShadow.CANGIF0.all = ECanaRegs.CANGIF0.all;
	//ECanaShadow.CANGIF0.all = 0xFFFFFFFF;
	//ECanaRegs.CANGIF0.all = ECanaShadow.CANGIF0.all;

	//ECanaShadow.CANGIM.all = ECanaRegs.CANGIM.all;
	ECanaShadow.CANGIM.all = 0;
	ECanaShadow.CANGIM.bit.I0EN = 1; // Enable eCAN0INT
	//ECanaShadow.CANGIM.bit.I1EN = 1; // Enable eCAN1INT
	//ECanaShadow.CANGIM.bit.MTOM = 1; // Enable MBX Timeout interrupt
	ECanaRegs.CANGIM.all = ECanaShadow.CANGIM.all;

	PieVectTable.ECAN0INTA = &eCAN0INT_ISR;
	//PieVectTable.ECAN1INTA = &eCAN1INT_ISR;

	EDIS;

	PieCtrlRegs.PIECTRL.bit.ENPIE = 1; // Enable vector fetching from PIE block
	PieCtrlRegs.PIEACK.bit.ACK9 = 1; // Enables PIE to drive a pulse into the CPU
	PieCtrlRegs.PIEIER9.bit.INTx5 = 1; // Enable INTx.5 of INT9 (eCAN0INT)
	//PieCtrlRegs.PIEIER9.bit.INTx6 = 1; // Enable INTx.6 of INT9 (eCAN1INT)


	IER |= M_INT9; // Enable INT9 of CPU
	EINT; // Global enable of interrupts
	//ERTM;

	for(;;)
	{
		message = MLBX16_HD<<8;
		message |= MLBX16_LD;
	}

}

void ECan_MALBOX_INIT()
{
	//struct ECAN_REGS ECanaShadow;
	// Config Transmit mail box ID  //
	ECanaMboxes.MBOX0.MSGID.all =  0x80000501;  // Extended Identifier
	ECanaMboxes.MBOX1.MSGID.all  = 0x80000502;  //
	ECanaMboxes.MBOX2.MSGID.all  = 0x80000503;  //
	ECanaMboxes.MBOX3.MSGID.all  = 0x80000504;  //
	ECanaMboxes.MBOX4.MSGID.all  = 0x80000505;  //
	ECanaMboxes.MBOX5.MSGID.all  = 0x80000506;  //
	ECanaMboxes.MBOX6.MSGID.all  = 0x80000507;  //
	ECanaMboxes.MBOX7.MSGID.all  = 0x80000508;  //
	ECanaMboxes.MBOX8.MSGID.all  = 0x80000509;  //
	ECanaMboxes.MBOX9.MSGID.all  = 0x80000510;  //
	ECanaMboxes.MBOX10.MSGID.all = 0x80000511;  //
	ECanaMboxes.MBOX11.MSGID.all = 0x80000512;  //
	ECanaMboxes.MBOX12.MSGID.all = 0x80000513;  //
	ECanaMboxes.MBOX13.MSGID.all = 0x80000514;  //
	ECanaMboxes.MBOX14.MSGID.all = 0x80000515;  //
	ECanaMboxes.MBOX15.MSGID.all = 0x80000516;  //

	// Config Receive mail box ID //ECanaMboxes.MBOX16.MSGID.all = 0x80000601;  //ECanaMboxes.MBOX17.MSGID.all = 0x80000602;  //ECanaMboxes.MBOX18.MSGID.all = 0x80000603;  //ECanaMboxes.MBOX19.MSGID.all = 0x80000604;  //ECanaMboxes.MBOX20.MSGID.all = 0x80000605;  //ECanaMboxes.MBOX21.MSGID.all = 0x80000606;  //ECanaMboxes.MBOX22.MSGID.all = 0x80000607;  //ECanaMboxes.MBOX23.MSGID.all = 0x80000608;  //ECanaMboxes.MBOX24.MSGID.all = 0x80000609;  //ECanaMboxes.MBOX25.MSGID.all = 0x80000610;  //ECanaMboxes.MBOX26.MSGID.all = 0x80000611;  //ECanaMboxes.MBOX27.MSGID.all = 0x80000611;  //ECanaMboxes.MBOX28.MSGID.all = 0x80000613;  //ECanaMboxes.MBOX29.MSGID.all = 0x80000614;  //ECanaMboxes.MBOX30.MSGID.all = 0x80000615;  //ECanaMboxes.MBOX31.MSGID.all = 0x80000616;  //

	// Write to DLC field in Master Control reg //
	ECanaMboxes.MBOX0.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX1.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX2.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX3.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX4.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX5.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX6.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX7.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX8.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX9.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX10.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX11.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX12.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX13.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX14.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX15.MSGCTRL.bit.DLC = 8;

	ECanaMboxes.MBOX16.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX17.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX18.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX19.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX20.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX21.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX22.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX23.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX24.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX25.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX26.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX27.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX28.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX29.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX30.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX31.MSGCTRL.bit.DLC = 8;

	// Configure Mailbox under test as a Transmit & Receive mailbox //

	ECanaShadow.CANMD.all = ECanaRegs.CANMD.all;
	ECanaShadow.CANMD.all = 0xFFFF0000;
	ECanaRegs.CANMD.all = ECanaShadow.CANMD.all;

	// Enable Mailbox under test //

	ECanaShadow.CANME.all = ECanaRegs.CANME.all;
	ECanaShadow.CANME.all = 0xFFFFFFFF;
	ECanaRegs.CANME.all = ECanaShadow.CANME.all;
}

interrupt void eCAN0INT_ISR(void) // eCAN
{
	if(ECanaRegs.CANRMP.bit.RMP16 == 1)
	{
		int0count++;
		ECanaRegs.CANRMP.bit.RMP16 = 1;
		MLBX16_HD = ECanaMboxes.MBOX16.MDH.all;
		MLBX16_LD = ECanaMboxes.MBOX16.MDL.all;
		PieCtrlRegs.PIEACK.bit.ACK9 = 1;
		EINT;
	}
	else if(ECanaRegs.CANRMP.bit.RMP17 == 1)
	{
		int1count++;
		ECanaRegs.CANRMP.bit.RMP17 = 1;
		MLBX17_HD = ECanaMboxes.MBOX17.MDH.all;
		MLBX17_LD = ECanaMboxes.MBOX17.MDL.all;
		PieCtrlRegs.PIEACK.bit.ACK9 = 1;
		EINT;
	}


	else
	elsecount++;
}
 /*CANalyzer configuration file: 1M80SPRX.cfg... */

user5762900：

回复 Huang Alex:

你好，请问你是怎么解决的？

各為群上的先進您好

目前在下遇到的問題是在CAN 接收中斷內無法更新變數，但

MAIL BOX暫存器內的數值是會隨CAN BUS傳入的數值做變化

以下是在下的Coding

#include "DSP28x_Project.h"// DSP281x Headerfile Include File
int int0count = 0; // Counter to track the # of level 0 interrupts
int int1count = 0; // Counter to track the # of level 1 interrupts
volatile unsigned int MLBX16_HD = 0;
volatile unsigned int MLBX16_LD = 0;
unsigned int MLBX17_HD = 0;
unsigned int MLBX17_LD = 0;
unsigned int message = 0;
int elsecount = 0;


interrupt void eCAN0INT_ISR(void);
void ECan_MALBOX_INIT(void);
struct ECAN_REGS ECanaShadow;

void main()
{
	InitSysCtrl();

	InitECanGpio();

	DINT;

	InitPieCtrl();

	IER = 0x0000;
	IFR = 0x0000;

	InitPieVectTable();

	// Initialize the CAN module //
	InitECan();

	//InitPieVectTable();
	ECan_MALBOX_INIT();

	EALLOW;
	// Configure CAN interrupts //
	ECanaShadow.CANMIM.all = 0xFFFFFFFF;
	//ECanaRegs.CANMIM.all = ECanaShadow.CANMIM.all;

	ECanaShadow.CANMIL.all = 0x00000000; // MBOX0 asserts MTOF0 (eCAN0INT)
	//ECanaShadow.CANMIL.bit.MIL0 = 1 ; // MBOX0 asserts MTOF1 (eCAN1INT)
	ECanaRegs.CANMIL.all = ECanaShadow.CANMIL.all;

	ECanaShadow.CANMIM.all = 0xFFFFFFFF; // Enable interrupts for all mailboxes
	ECanaRegs.CANMIM.all = ECanaShadow.CANMIM.all;

	//ECanaShadow.CANGIF0.all = ECanaRegs.CANGIF0.all;
	//ECanaShadow.CANGIF0.all = 0xFFFFFFFF;
	//ECanaRegs.CANGIF0.all = ECanaShadow.CANGIF0.all;

	//ECanaShadow.CANGIM.all = ECanaRegs.CANGIM.all;
	ECanaShadow.CANGIM.all = 0;
	ECanaShadow.CANGIM.bit.I0EN = 1; // Enable eCAN0INT
	//ECanaShadow.CANGIM.bit.I1EN = 1; // Enable eCAN1INT
	//ECanaShadow.CANGIM.bit.MTOM = 1; // Enable MBX Timeout interrupt
	ECanaRegs.CANGIM.all = ECanaShadow.CANGIM.all;

	PieVectTable.ECAN0INTA = &eCAN0INT_ISR;
	//PieVectTable.ECAN1INTA = &eCAN1INT_ISR;

	EDIS;

	PieCtrlRegs.PIECTRL.bit.ENPIE = 1; // Enable vector fetching from PIE block
	PieCtrlRegs.PIEACK.bit.ACK9 = 1; // Enables PIE to drive a pulse into the CPU
	PieCtrlRegs.PIEIER9.bit.INTx5 = 1; // Enable INTx.5 of INT9 (eCAN0INT)
	//PieCtrlRegs.PIEIER9.bit.INTx6 = 1; // Enable INTx.6 of INT9 (eCAN1INT)


	IER |= M_INT9; // Enable INT9 of CPU
	EINT; // Global enable of interrupts
	//ERTM;

	for(;;)
	{
		message = MLBX16_HD<<8;
		message |= MLBX16_LD;
	}

}

void ECan_MALBOX_INIT()
{
	//struct ECAN_REGS ECanaShadow;
	// Config Transmit mail box ID  //
	ECanaMboxes.MBOX0.MSGID.all =  0x80000501;  // Extended Identifier
	ECanaMboxes.MBOX1.MSGID.all  = 0x80000502;  //
	ECanaMboxes.MBOX2.MSGID.all  = 0x80000503;  //
	ECanaMboxes.MBOX3.MSGID.all  = 0x80000504;  //
	ECanaMboxes.MBOX4.MSGID.all  = 0x80000505;  //
	ECanaMboxes.MBOX5.MSGID.all  = 0x80000506;  //
	ECanaMboxes.MBOX6.MSGID.all  = 0x80000507;  //
	ECanaMboxes.MBOX7.MSGID.all  = 0x80000508;  //
	ECanaMboxes.MBOX8.MSGID.all  = 0x80000509;  //
	ECanaMboxes.MBOX9.MSGID.all  = 0x80000510;  //
	ECanaMboxes.MBOX10.MSGID.all = 0x80000511;  //
	ECanaMboxes.MBOX11.MSGID.all = 0x80000512;  //
	ECanaMboxes.MBOX12.MSGID.all = 0x80000513;  //
	ECanaMboxes.MBOX13.MSGID.all = 0x80000514;  //
	ECanaMboxes.MBOX14.MSGID.all = 0x80000515;  //
	ECanaMboxes.MBOX15.MSGID.all = 0x80000516;  //

	// Config Receive mail box ID //ECanaMboxes.MBOX16.MSGID.all = 0x80000601;  //ECanaMboxes.MBOX17.MSGID.all = 0x80000602;  //ECanaMboxes.MBOX18.MSGID.all = 0x80000603;  //ECanaMboxes.MBOX19.MSGID.all = 0x80000604;  //ECanaMboxes.MBOX20.MSGID.all = 0x80000605;  //ECanaMboxes.MBOX21.MSGID.all = 0x80000606;  //ECanaMboxes.MBOX22.MSGID.all = 0x80000607;  //ECanaMboxes.MBOX23.MSGID.all = 0x80000608;  //ECanaMboxes.MBOX24.MSGID.all = 0x80000609;  //ECanaMboxes.MBOX25.MSGID.all = 0x80000610;  //ECanaMboxes.MBOX26.MSGID.all = 0x80000611;  //ECanaMboxes.MBOX27.MSGID.all = 0x80000611;  //ECanaMboxes.MBOX28.MSGID.all = 0x80000613;  //ECanaMboxes.MBOX29.MSGID.all = 0x80000614;  //ECanaMboxes.MBOX30.MSGID.all = 0x80000615;  //ECanaMboxes.MBOX31.MSGID.all = 0x80000616;  //

	// Write to DLC field in Master Control reg //
	ECanaMboxes.MBOX0.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX1.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX2.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX3.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX4.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX5.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX6.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX7.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX8.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX9.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX10.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX11.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX12.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX13.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX14.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX15.MSGCTRL.bit.DLC = 8;

	ECanaMboxes.MBOX16.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX17.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX18.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX19.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX20.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX21.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX22.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX23.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX24.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX25.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX26.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX27.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX28.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX29.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX30.MSGCTRL.bit.DLC = 8;
	ECanaMboxes.MBOX31.MSGCTRL.bit.DLC = 8;

	// Configure Mailbox under test as a Transmit & Receive mailbox //

	ECanaShadow.CANMD.all = ECanaRegs.CANMD.all;
	ECanaShadow.CANMD.all = 0xFFFF0000;
	ECanaRegs.CANMD.all = ECanaShadow.CANMD.all;

	// Enable Mailbox under test //

	ECanaShadow.CANME.all = ECanaRegs.CANME.all;
	ECanaShadow.CANME.all = 0xFFFFFFFF;
	ECanaRegs.CANME.all = ECanaShadow.CANME.all;
}

interrupt void eCAN0INT_ISR(void) // eCAN
{
	if(ECanaRegs.CANRMP.bit.RMP16 == 1)
	{
		int0count++;
		ECanaRegs.CANRMP.bit.RMP16 = 1;
		MLBX16_HD = ECanaMboxes.MBOX16.MDH.all;
		MLBX16_LD = ECanaMboxes.MBOX16.MDL.all;
		PieCtrlRegs.PIEACK.bit.ACK9 = 1;
		EINT;
	}
	else if(ECanaRegs.CANRMP.bit.RMP17 == 1)
	{
		int1count++;
		ECanaRegs.CANRMP.bit.RMP17 = 1;
		MLBX17_HD = ECanaMboxes.MBOX17.MDH.all;
		MLBX17_LD = ECanaMboxes.MBOX17.MDL.all;
		PieCtrlRegs.PIEACK.bit.ACK9 = 1;
		EINT;
	}


	else
	elsecount++;
}
 /*CANalyzer configuration file: 1M80SPRX.cfg... */

user5762900：

回复 Huang Alex:

我的程序只能发送不能接收，接收中段也进不了，现在有点崩，检查了好多天也不知道哪里出了问题