TI中文支持网按照官方配置，配置完can接收，采用中断接收，debug时进不了中断。有没有遇到类似情况的？求解答。
void InitECan(void) // Initialize eCAN-B module
{
struct ECAN_REGS ECanbShadow;
EALLOW; // EALLOW enables access to protected bits
//配置GPIO工作在额eCAN功能
GpioCtrlRegs.GPAPUD.bit.GPIO16 = 1; // Disable pull-up for GPIO16 (CANTXB)
GpioCtrlRegs.GPAPUD.bit.GPIO17 = 0; // Enable pull-up for GPIO17 (CANRXB)
GpioCtrlRegs.GPAQSEL2.bit.GPIO17 = 3; // Asynch qual for GPIO17 (CANRXB)
GpioCtrlRegs.GPAMUX2.bit.GPIO16 = 2; // Configure GPIO16 for CANTXB operation
GpioCtrlRegs.GPAMUX2.bit.GPIO17 = 2; // Configure GPIO17 for CANRXB operation
//配置eCAN的RX和TX分别为eCAN的接收和发射引脚
ECanbShadow.CANTIOC.all = ECanbRegs.CANTIOC.all;
ECanbShadow.CANTIOC.bit.TXFUNC = 1;
ECanbRegs.CANTIOC.all = ECanbShadow.CANTIOC.all;
ECanbShadow.CANRIOC.all = ECanbRegs.CANRIOC.all;
ECanbShadow.CANRIOC.bit.RXFUNC = 1;
ECanbRegs.CANRIOC.all = ECanbShadow.CANRIOC.all;
/* Configure bit timing parameters for eCANB*/
ECanbShadow.CANMC.all = ECanbRegs.CANMC.all;
ECanbShadow.CANMC.bit.CCR = 1 ; // Set CCR = 1
ECanbRegs.CANMC.all = ECanbShadow.CANMC.all;
ECanbShadow.CANES.all = ECanbRegs.CANES.all;
do
{ECanbShadow.CANES.bit.CCE=ECanbRegs.CANES.bit.CCE;}
while(ECanbShadow.CANES.bit.CCE != 1 ) ; // Wait for CCE bit to be set..CCE等于1时跳出循环，则可以对CANBTC设置
//设置通信波特率
ECanbShadow.CANBTC.all = ECanbRegs.CANBTC.all;
ECanbShadow.CANBTC.bit.BRPREG = 9;
/*150/10=15*/
ECanbShadow.CANBTC.bit.TSEG2REG = 2;
ECanbShadow.CANBTC.bit.TSEG1REG = 10;
ECanbRegs.CANBTC.all = ECanbShadow.CANBTC.all;
ECanbShadow.CANMC.all = ECanbRegs.CANMC.all;
ECanbShadow.CANMC.bit.STM = 0; //工作在正常模式
ECanbShadow.CANMC.bit.DBO = 1;
ECanbShadow.CANMC.bit.SCB = 1;
ECanbRegs.CANMC.all = ECanbShadow.CANMC.all;
do
{
// ECanbShadow.CANES.all = ECanbRegs.CANES.all;
ECanbShadow.CANES.bit.CCE = 0;
} while(ECanbShadow.CANES.bit.CCE != 0 ); // Wait for CCE bit to be cleared..
//初始化所有主设备控制区域为0，MCF所有的位都初始化为0
ECanbMboxes.MBOX0.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX1.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX2.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX3.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX4.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX5.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX6.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX7.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX8.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX9.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX10.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX11.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX12.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX13.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX14.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX15.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX16.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX17.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX18.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX19.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX20.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX21.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX22.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX23.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX24.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX25.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX26.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX27.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX28.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX29.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX30.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX31.MSGCTRL.all = 0x00000000;
// TAn, RMPn, GIFn bits are all zero upon reset and are cleared again
// as a matter of precaution.
ECanbShadow.CANTA.all = ECanbRegs.CANTA.all;
ECanbShadow.CANTA.all = 0xFFFFFFFF;
ECanbRegs.CANTA.all = ECanbShadow.CANTA.all;
ECanbShadow.CANRMP.all = ECanbRegs.CANRMP.all;
ECanbShadow.CANRMP.all = 0xFFFFFFFF;
ECanbRegs.CANRMP.all = ECanbShadow.CANRMP.all;
ECanbShadow.CANGIF0.all = ECanbRegs.CANGIF0.all;
ECanbShadow.CANGIF0.all = 0xFFFFFFFF;
ECanbRegs.CANGIF0.all = ECanbShadow.CANGIF0.all;
ECanbShadow.CANGIF1.all = ECanbRegs.CANGIF1.all;
ECanbShadow.CANGIF1.all = 0xFFFFFFFF;
ECanbRegs.CANGIF1.all = ECanbShadow.CANGIF1.all;
EALLOW;
/* Mailbox interrupt is disable*/
ECanbShadow.CANGIM.all = 0x00000000;
ECanbRegs.CANGIM.all = ECanbShadow.CANGIM.all;
ECanbShadow.CANMIM.all = 0x00000000;
ECanbRegs.CANMIM.all = ECanbShadow.CANMIM.all;
ECanbShadow.CANMIL.all = 0xFFFFFFFF;
ECanbRegs.CANMIL.all = ECanbShadow.CANMIL.all;
EDIS;
/* Set ECan mailboxs */
ECanbRegs.CANME.all = 0x00000000;
//The ID of sendmail
ECanbMboxes.MBOX0.MSGID.all = 0xCF00FFFF; //CF00FFFF 1100 1111 0000 0000 1111 1111 1111 1111
//The ID of receivemail
ECanbMboxes.MBOX16.MSGID.all = 0x80C20000;//CF02FFFF 1100 1111 0000 0010 1111 1111 1111 1111
/*数据长度为8byte*/
ECanbMboxes.MBOX0.MSGCTRL.bit.DLC = 8;
ECanbMboxes.MBOX16.MSGCTRL.bit.DLC = 8;
/*The mail0 is TX;The mail16 is RX*/
ECanbShadow.CANMD.all = ECanbRegs.CANMD.all;
ECanbShadow.CANMD.bit.MD0 =0;
ECanbShadow.CANMD.bit.MD16 =1;
ECanbRegs.CANMD.all = ECanbShadow.CANMD.all;
ECanbShadow.CANME.all = ECanbRegs.CANME.all;
ECanbShadow.CANME.all = 0x00010001; // Required before writing the MSGIDs 0000 0000 0000 0001 0000 0000 0000 0001
ECanbRegs.CANME.all = ECanbShadow.CANME.all;
// /*没有远方应答帧被请求*/
ECanbMboxes.MBOX16.MSGCTRL.bit.RTR = 0;
//邮箱屏蔽使能
ECanbRegs.CANMIM.all = 0xFFFFFFFF;
//邮箱中断将产生在ECAN0INT
ECanbRegs.CANMIL.all = 0;
ECanbRegs.CANGIF0.all = 0xFFFFFFFF;
//ECAN0INT中断请求被使能
ECanbRegs.CANGIM.bit.I0EN = 1;
EDIS;
}
jh chen：
信息量太少.不涉密的话可以把代码贴上来.
你使用什么方式制造数据?一共发送了几帧?几个邮箱接收.几个产生中断?
查看一下邮箱,看看是否有数据?核对配置的帧ID.
按照官方配置，配置完can接收，采用中断接收，debug时进不了中断。有没有遇到类似情况的？求解答。
void InitECan(void) // Initialize eCAN-B module
{
struct ECAN_REGS ECanbShadow;
EALLOW; // EALLOW enables access to protected bits
//配置GPIO工作在额eCAN功能
GpioCtrlRegs.GPAPUD.bit.GPIO16 = 1; // Disable pull-up for GPIO16 (CANTXB)
GpioCtrlRegs.GPAPUD.bit.GPIO17 = 0; // Enable pull-up for GPIO17 (CANRXB)
GpioCtrlRegs.GPAQSEL2.bit.GPIO17 = 3; // Asynch qual for GPIO17 (CANRXB)
GpioCtrlRegs.GPAMUX2.bit.GPIO16 = 2; // Configure GPIO16 for CANTXB operation
GpioCtrlRegs.GPAMUX2.bit.GPIO17 = 2; // Configure GPIO17 for CANRXB operation
//配置eCAN的RX和TX分别为eCAN的接收和发射引脚
ECanbShadow.CANTIOC.all = ECanbRegs.CANTIOC.all;
ECanbShadow.CANTIOC.bit.TXFUNC = 1;
ECanbRegs.CANTIOC.all = ECanbShadow.CANTIOC.all;
ECanbShadow.CANRIOC.all = ECanbRegs.CANRIOC.all;
ECanbShadow.CANRIOC.bit.RXFUNC = 1;
ECanbRegs.CANRIOC.all = ECanbShadow.CANRIOC.all;
/* Configure bit timing parameters for eCANB*/
ECanbShadow.CANMC.all = ECanbRegs.CANMC.all;
ECanbShadow.CANMC.bit.CCR = 1 ; // Set CCR = 1
ECanbRegs.CANMC.all = ECanbShadow.CANMC.all;
ECanbShadow.CANES.all = ECanbRegs.CANES.all;
do
{ECanbShadow.CANES.bit.CCE=ECanbRegs.CANES.bit.CCE;}
while(ECanbShadow.CANES.bit.CCE != 1 ) ; // Wait for CCE bit to be set..CCE等于1时跳出循环，则可以对CANBTC设置
//设置通信波特率
ECanbShadow.CANBTC.all = ECanbRegs.CANBTC.all;
ECanbShadow.CANBTC.bit.BRPREG = 9;
/*150/10=15*/
ECanbShadow.CANBTC.bit.TSEG2REG = 2;
ECanbShadow.CANBTC.bit.TSEG1REG = 10;
ECanbRegs.CANBTC.all = ECanbShadow.CANBTC.all;
ECanbShadow.CANMC.all = ECanbRegs.CANMC.all;
ECanbShadow.CANMC.bit.STM = 0; //工作在正常模式
ECanbShadow.CANMC.bit.DBO = 1;
ECanbShadow.CANMC.bit.SCB = 1;
ECanbRegs.CANMC.all = ECanbShadow.CANMC.all;
do
{
// ECanbShadow.CANES.all = ECanbRegs.CANES.all;
ECanbShadow.CANES.bit.CCE = 0;
} while(ECanbShadow.CANES.bit.CCE != 0 ); // Wait for CCE bit to be cleared..
//初始化所有主设备控制区域为0，MCF所有的位都初始化为0
ECanbMboxes.MBOX0.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX1.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX2.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX3.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX4.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX5.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX6.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX7.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX8.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX9.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX10.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX11.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX12.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX13.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX14.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX15.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX16.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX17.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX18.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX19.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX20.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX21.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX22.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX23.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX24.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX25.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX26.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX27.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX28.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX29.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX30.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX31.MSGCTRL.all = 0x00000000;
// TAn, RMPn, GIFn bits are all zero upon reset and are cleared again
// as a matter of precaution.
ECanbShadow.CANTA.all = ECanbRegs.CANTA.all;
ECanbShadow.CANTA.all = 0xFFFFFFFF;
ECanbRegs.CANTA.all = ECanbShadow.CANTA.all;
ECanbShadow.CANRMP.all = ECanbRegs.CANRMP.all;
ECanbShadow.CANRMP.all = 0xFFFFFFFF;
ECanbRegs.CANRMP.all = ECanbShadow.CANRMP.all;
ECanbShadow.CANGIF0.all = ECanbRegs.CANGIF0.all;
ECanbShadow.CANGIF0.all = 0xFFFFFFFF;
ECanbRegs.CANGIF0.all = ECanbShadow.CANGIF0.all;
ECanbShadow.CANGIF1.all = ECanbRegs.CANGIF1.all;
ECanbShadow.CANGIF1.all = 0xFFFFFFFF;
ECanbRegs.CANGIF1.all = ECanbShadow.CANGIF1.all;
EALLOW;
/* Mailbox interrupt is disable*/
ECanbShadow.CANGIM.all = 0x00000000;
ECanbRegs.CANGIM.all = ECanbShadow.CANGIM.all;
ECanbShadow.CANMIM.all = 0x00000000;
ECanbRegs.CANMIM.all = ECanbShadow.CANMIM.all;
ECanbShadow.CANMIL.all = 0xFFFFFFFF;
ECanbRegs.CANMIL.all = ECanbShadow.CANMIL.all;
EDIS;
/* Set ECan mailboxs */
ECanbRegs.CANME.all = 0x00000000;
//The ID of sendmail
ECanbMboxes.MBOX0.MSGID.all = 0xCF00FFFF; //CF00FFFF 1100 1111 0000 0000 1111 1111 1111 1111
//The ID of receivemail
ECanbMboxes.MBOX16.MSGID.all = 0x80C20000;//CF02FFFF 1100 1111 0000 0010 1111 1111 1111 1111
/*数据长度为8byte*/
ECanbMboxes.MBOX0.MSGCTRL.bit.DLC = 8;
ECanbMboxes.MBOX16.MSGCTRL.bit.DLC = 8;
/*The mail0 is TX;The mail16 is RX*/
ECanbShadow.CANMD.all = ECanbRegs.CANMD.all;
ECanbShadow.CANMD.bit.MD0 =0;
ECanbShadow.CANMD.bit.MD16 =1;
ECanbRegs.CANMD.all = ECanbShadow.CANMD.all;
ECanbShadow.CANME.all = ECanbRegs.CANME.all;
ECanbShadow.CANME.all = 0x00010001; // Required before writing the MSGIDs 0000 0000 0000 0001 0000 0000 0000 0001
ECanbRegs.CANME.all = ECanbShadow.CANME.all;
// /*没有远方应答帧被请求*/
ECanbMboxes.MBOX16.MSGCTRL.bit.RTR = 0;
//邮箱屏蔽使能
ECanbRegs.CANMIM.all = 0xFFFFFFFF;
//邮箱中断将产生在ECAN0INT
ECanbRegs.CANMIL.all = 0;
ECanbRegs.CANGIF0.all = 0xFFFFFFFF;
//ECAN0INT中断请求被使能
ECanbRegs.CANGIM.bit.I0EN = 1;
EDIS;
}
JT Niu：
回复 jh chen:
你好，我已经附上了我的配置代码，能帮忙看下吗？一个接收中断，采用can调试器发送或者控制器发送数据，一个邮箱接收Mbox16
按照官方配置，配置完can接收，采用中断接收，debug时进不了中断。有没有遇到类似情况的？求解答。
void InitECan(void) // Initialize eCAN-B module
{
struct ECAN_REGS ECanbShadow;
EALLOW; // EALLOW enables access to protected bits
//配置GPIO工作在额eCAN功能
GpioCtrlRegs.GPAPUD.bit.GPIO16 = 1; // Disable pull-up for GPIO16 (CANTXB)
GpioCtrlRegs.GPAPUD.bit.GPIO17 = 0; // Enable pull-up for GPIO17 (CANRXB)
GpioCtrlRegs.GPAQSEL2.bit.GPIO17 = 3; // Asynch qual for GPIO17 (CANRXB)
GpioCtrlRegs.GPAMUX2.bit.GPIO16 = 2; // Configure GPIO16 for CANTXB operation
GpioCtrlRegs.GPAMUX2.bit.GPIO17 = 2; // Configure GPIO17 for CANRXB operation
//配置eCAN的RX和TX分别为eCAN的接收和发射引脚
ECanbShadow.CANTIOC.all = ECanbRegs.CANTIOC.all;
ECanbShadow.CANTIOC.bit.TXFUNC = 1;
ECanbRegs.CANTIOC.all = ECanbShadow.CANTIOC.all;
ECanbShadow.CANRIOC.all = ECanbRegs.CANRIOC.all;
ECanbShadow.CANRIOC.bit.RXFUNC = 1;
ECanbRegs.CANRIOC.all = ECanbShadow.CANRIOC.all;
/* Configure bit timing parameters for eCANB*/
ECanbShadow.CANMC.all = ECanbRegs.CANMC.all;
ECanbShadow.CANMC.bit.CCR = 1 ; // Set CCR = 1
ECanbRegs.CANMC.all = ECanbShadow.CANMC.all;
ECanbShadow.CANES.all = ECanbRegs.CANES.all;
do
{ECanbShadow.CANES.bit.CCE=ECanbRegs.CANES.bit.CCE;}
while(ECanbShadow.CANES.bit.CCE != 1 ) ; // Wait for CCE bit to be set..CCE等于1时跳出循环，则可以对CANBTC设置
//设置通信波特率
ECanbShadow.CANBTC.all = ECanbRegs.CANBTC.all;
ECanbShadow.CANBTC.bit.BRPREG = 9;
/*150/10=15*/
ECanbShadow.CANBTC.bit.TSEG2REG = 2;
ECanbShadow.CANBTC.bit.TSEG1REG = 10;
ECanbRegs.CANBTC.all = ECanbShadow.CANBTC.all;
ECanbShadow.CANMC.all = ECanbRegs.CANMC.all;
ECanbShadow.CANMC.bit.STM = 0; //工作在正常模式
ECanbShadow.CANMC.bit.DBO = 1;
ECanbShadow.CANMC.bit.SCB = 1;
ECanbRegs.CANMC.all = ECanbShadow.CANMC.all;
do
{
// ECanbShadow.CANES.all = ECanbRegs.CANES.all;
ECanbShadow.CANES.bit.CCE = 0;
} while(ECanbShadow.CANES.bit.CCE != 0 ); // Wait for CCE bit to be cleared..
//初始化所有主设备控制区域为0，MCF所有的位都初始化为0
ECanbMboxes.MBOX0.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX1.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX2.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX3.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX4.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX5.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX6.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX7.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX8.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX9.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX10.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX11.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX12.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX13.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX14.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX15.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX16.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX17.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX18.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX19.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX20.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX21.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX22.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX23.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX24.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX25.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX26.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX27.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX28.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX29.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX30.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX31.MSGCTRL.all = 0x00000000;
// TAn, RMPn, GIFn bits are all zero upon reset and are cleared again
// as a matter of precaution.
ECanbShadow.CANTA.all = ECanbRegs.CANTA.all;
ECanbShadow.CANTA.all = 0xFFFFFFFF;
ECanbRegs.CANTA.all = ECanbShadow.CANTA.all;
ECanbShadow.CANRMP.all = ECanbRegs.CANRMP.all;
ECanbShadow.CANRMP.all = 0xFFFFFFFF;
ECanbRegs.CANRMP.all = ECanbShadow.CANRMP.all;
ECanbShadow.CANGIF0.all = ECanbRegs.CANGIF0.all;
ECanbShadow.CANGIF0.all = 0xFFFFFFFF;
ECanbRegs.CANGIF0.all = ECanbShadow.CANGIF0.all;
ECanbShadow.CANGIF1.all = ECanbRegs.CANGIF1.all;
ECanbShadow.CANGIF1.all = 0xFFFFFFFF;
ECanbRegs.CANGIF1.all = ECanbShadow.CANGIF1.all;
EALLOW;
/* Mailbox interrupt is disable*/
ECanbShadow.CANGIM.all = 0x00000000;
ECanbRegs.CANGIM.all = ECanbShadow.CANGIM.all;
ECanbShadow.CANMIM.all = 0x00000000;
ECanbRegs.CANMIM.all = ECanbShadow.CANMIM.all;
ECanbShadow.CANMIL.all = 0xFFFFFFFF;
ECanbRegs.CANMIL.all = ECanbShadow.CANMIL.all;
EDIS;
/* Set ECan mailboxs */
ECanbRegs.CANME.all = 0x00000000;
//The ID of sendmail
ECanbMboxes.MBOX0.MSGID.all = 0xCF00FFFF; //CF00FFFF 1100 1111 0000 0000 1111 1111 1111 1111
//The ID of receivemail
ECanbMboxes.MBOX16.MSGID.all = 0x80C20000;//CF02FFFF 1100 1111 0000 0010 1111 1111 1111 1111
/*数据长度为8byte*/
ECanbMboxes.MBOX0.MSGCTRL.bit.DLC = 8;
ECanbMboxes.MBOX16.MSGCTRL.bit.DLC = 8;
/*The mail0 is TX;The mail16 is RX*/
ECanbShadow.CANMD.all = ECanbRegs.CANMD.all;
ECanbShadow.CANMD.bit.MD0 =0;
ECanbShadow.CANMD.bit.MD16 =1;
ECanbRegs.CANMD.all = ECanbShadow.CANMD.all;
ECanbShadow.CANME.all = ECanbRegs.CANME.all;
ECanbShadow.CANME.all = 0x00010001; // Required before writing the MSGIDs 0000 0000 0000 0001 0000 0000 0000 0001
ECanbRegs.CANME.all = ECanbShadow.CANME.all;
// /*没有远方应答帧被请求*/
ECanbMboxes.MBOX16.MSGCTRL.bit.RTR = 0;
//邮箱屏蔽使能
ECanbRegs.CANMIM.all = 0xFFFFFFFF;
//邮箱中断将产生在ECAN0INT
ECanbRegs.CANMIL.all = 0;
ECanbRegs.CANGIF0.all = 0xFFFFFFFF;
//ECAN0INT中断请求被使能
ECanbRegs.CANGIM.bit.I0EN = 1;
EDIS;
}
jh chen：
回复 JT Niu:
EALLOW; // EALLOW enables access to protected bits//配置GPIO工作在额eCAN功能GpioCtrlRegs.GPAPUD.bit.GPIO16 = 1; // Disable pull-up for GPIO16 (CANTXB)GpioCtrlRegs.GPAPUD.bit.GPIO17 = 0; // Enable pull-up for GPIO17 (CANRXB)GpioCtrlRegs.GPAQSEL2.bit.GPIO17 = 3; // Asynch qual for GPIO17 (CANRXB)GpioCtrlRegs.GPAMUX2.bit.GPIO16 = 2; // Configure GPIO16 for CANTXB operationGpioCtrlRegs.GPAMUX2.bit.GPIO17 = 2; // Configure GPIO17 for CANRXB operation
EDIS;//这里请加上一个EDIS
中断函数是如何编写的呢？
按照官方配置，配置完can接收，采用中断接收，debug时进不了中断。有没有遇到类似情况的？求解答。
void InitECan(void) // Initialize eCAN-B module
{
struct ECAN_REGS ECanbShadow;
EALLOW; // EALLOW enables access to protected bits
//配置GPIO工作在额eCAN功能
GpioCtrlRegs.GPAPUD.bit.GPIO16 = 1; // Disable pull-up for GPIO16 (CANTXB)
GpioCtrlRegs.GPAPUD.bit.GPIO17 = 0; // Enable pull-up for GPIO17 (CANRXB)
GpioCtrlRegs.GPAQSEL2.bit.GPIO17 = 3; // Asynch qual for GPIO17 (CANRXB)
GpioCtrlRegs.GPAMUX2.bit.GPIO16 = 2; // Configure GPIO16 for CANTXB operation
GpioCtrlRegs.GPAMUX2.bit.GPIO17 = 2; // Configure GPIO17 for CANRXB operation
//配置eCAN的RX和TX分别为eCAN的接收和发射引脚
ECanbShadow.CANTIOC.all = ECanbRegs.CANTIOC.all;
ECanbShadow.CANTIOC.bit.TXFUNC = 1;
ECanbRegs.CANTIOC.all = ECanbShadow.CANTIOC.all;
ECanbShadow.CANRIOC.all = ECanbRegs.CANRIOC.all;
ECanbShadow.CANRIOC.bit.RXFUNC = 1;
ECanbRegs.CANRIOC.all = ECanbShadow.CANRIOC.all;
/* Configure bit timing parameters for eCANB*/
ECanbShadow.CANMC.all = ECanbRegs.CANMC.all;
ECanbShadow.CANMC.bit.CCR = 1 ; // Set CCR = 1
ECanbRegs.CANMC.all = ECanbShadow.CANMC.all;
ECanbShadow.CANES.all = ECanbRegs.CANES.all;
do
{ECanbShadow.CANES.bit.CCE=ECanbRegs.CANES.bit.CCE;}
while(ECanbShadow.CANES.bit.CCE != 1 ) ; // Wait for CCE bit to be set..CCE等于1时跳出循环，则可以对CANBTC设置
//设置通信波特率
ECanbShadow.CANBTC.all = ECanbRegs.CANBTC.all;
ECanbShadow.CANBTC.bit.BRPREG = 9;
/*150/10=15*/
ECanbShadow.CANBTC.bit.TSEG2REG = 2;
ECanbShadow.CANBTC.bit.TSEG1REG = 10;
ECanbRegs.CANBTC.all = ECanbShadow.CANBTC.all;
ECanbShadow.CANMC.all = ECanbRegs.CANMC.all;
ECanbShadow.CANMC.bit.STM = 0; //工作在正常模式
ECanbShadow.CANMC.bit.DBO = 1;
ECanbShadow.CANMC.bit.SCB = 1;
ECanbRegs.CANMC.all = ECanbShadow.CANMC.all;
do
{
// ECanbShadow.CANES.all = ECanbRegs.CANES.all;
ECanbShadow.CANES.bit.CCE = 0;
} while(ECanbShadow.CANES.bit.CCE != 0 ); // Wait for CCE bit to be cleared..
//初始化所有主设备控制区域为0，MCF所有的位都初始化为0
ECanbMboxes.MBOX0.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX1.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX2.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX3.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX4.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX5.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX6.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX7.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX8.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX9.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX10.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX11.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX12.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX13.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX14.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX15.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX16.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX17.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX18.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX19.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX20.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX21.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX22.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX23.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX24.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX25.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX26.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX27.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX28.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX29.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX30.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX31.MSGCTRL.all = 0x00000000;
// TAn, RMPn, GIFn bits are all zero upon reset and are cleared again
// as a matter of precaution.
ECanbShadow.CANTA.all = ECanbRegs.CANTA.all;
ECanbShadow.CANTA.all = 0xFFFFFFFF;
ECanbRegs.CANTA.all = ECanbShadow.CANTA.all;
ECanbShadow.CANRMP.all = ECanbRegs.CANRMP.all;
ECanbShadow.CANRMP.all = 0xFFFFFFFF;
ECanbRegs.CANRMP.all = ECanbShadow.CANRMP.all;
ECanbShadow.CANGIF0.all = ECanbRegs.CANGIF0.all;
ECanbShadow.CANGIF0.all = 0xFFFFFFFF;
ECanbRegs.CANGIF0.all = ECanbShadow.CANGIF0.all;
ECanbShadow.CANGIF1.all = ECanbRegs.CANGIF1.all;
ECanbShadow.CANGIF1.all = 0xFFFFFFFF;
ECanbRegs.CANGIF1.all = ECanbShadow.CANGIF1.all;
EALLOW;
/* Mailbox interrupt is disable*/
ECanbShadow.CANGIM.all = 0x00000000;
ECanbRegs.CANGIM.all = ECanbShadow.CANGIM.all;
ECanbShadow.CANMIM.all = 0x00000000;
ECanbRegs.CANMIM.all = ECanbShadow.CANMIM.all;
ECanbShadow.CANMIL.all = 0xFFFFFFFF;
ECanbRegs.CANMIL.all = ECanbShadow.CANMIL.all;
EDIS;
/* Set ECan mailboxs */
ECanbRegs.CANME.all = 0x00000000;
//The ID of sendmail
ECanbMboxes.MBOX0.MSGID.all = 0xCF00FFFF; //CF00FFFF 1100 1111 0000 0000 1111 1111 1111 1111
//The ID of receivemail
ECanbMboxes.MBOX16.MSGID.all = 0x80C20000;//CF02FFFF 1100 1111 0000 0010 1111 1111 1111 1111
/*数据长度为8byte*/
ECanbMboxes.MBOX0.MSGCTRL.bit.DLC = 8;
ECanbMboxes.MBOX16.MSGCTRL.bit.DLC = 8;
/*The mail0 is TX;The mail16 is RX*/
ECanbShadow.CANMD.all = ECanbRegs.CANMD.all;
ECanbShadow.CANMD.bit.MD0 =0;
ECanbShadow.CANMD.bit.MD16 =1;
ECanbRegs.CANMD.all = ECanbShadow.CANMD.all;
ECanbShadow.CANME.all = ECanbRegs.CANME.all;
ECanbShadow.CANME.all = 0x00010001; // Required before writing the MSGIDs 0000 0000 0000 0001 0000 0000 0000 0001
ECanbRegs.CANME.all = ECanbShadow.CANME.all;
// /*没有远方应答帧被请求*/
ECanbMboxes.MBOX16.MSGCTRL.bit.RTR = 0;
//邮箱屏蔽使能
ECanbRegs.CANMIM.all = 0xFFFFFFFF;
//邮箱中断将产生在ECAN0INT
ECanbRegs.CANMIL.all = 0;
ECanbRegs.CANGIF0.all = 0xFFFFFFFF;
//ECAN0INT中断请求被使能
ECanbRegs.CANGIM.bit.I0EN = 1;
EDIS;
}
JT Niu：
回复 jh chen:
//这是中断函数 INT9.7interrupt void ECAN0INTB_ISR(void) // eCAN-B{ // Insert ISR Code here while (ECanbRegs.CANRMP.all != 0x00010000); ECanbRegs.CANRMP.all = 0x00010000;//复位RMP标志，同时也复位中断标志
if(ECanbRegs.CANRMP.all != 0x00010000) { ECanbRegs.CANRMP.all = 0x00010000; //复位RMP标志，同时也复位中断标志 } Rec_l = ECanbMboxes.MBOX16.MDL.all; //收到的数据在接收邮箱Mbox16 Rec_h = ECanbMboxes.MBOX16.MDH.all; PieCtrlRegs.PIEACK.bit.ACK9 = 1; EINT;
}
//这是main函数
int main(void){
InitSysCtrl(); //初始化系统和时钟基本模块，PLL, WatchDog, enable Peripheral Clocks asm(" RPT #8 || NOP"); //表示延迟8+1个系统时钟周期，汇编指令
DINT;
InitGpio();
InitPieCtrl(); IER = 0x0000; IFR = 0x0000; InitPieVectTable(); InitECan();
asm(" RPT #8 || NOP");
// //使能PIE中断 PieCtrlRegs.PIECTRL.bit.ENPIE = 1; // Enable the PIE PieCtrlRegs.PIEIER9.bit.INTx7 = 1;
EALLOW; PieVectTable.ECAN0INTB = & ECAN0INTB_ISR;
EDIS; //使能CPU中断
IER |= M_INT9;
EINT; //开全局中断 ERTM; //开实时中断
while(1) {}
}
按照官方配置，配置完can接收，采用中断接收，debug时进不了中断。有没有遇到类似情况的？求解答。
void InitECan(void) // Initialize eCAN-B module
{
struct ECAN_REGS ECanbShadow;
EALLOW; // EALLOW enables access to protected bits
//配置GPIO工作在额eCAN功能
GpioCtrlRegs.GPAPUD.bit.GPIO16 = 1; // Disable pull-up for GPIO16 (CANTXB)
GpioCtrlRegs.GPAPUD.bit.GPIO17 = 0; // Enable pull-up for GPIO17 (CANRXB)
GpioCtrlRegs.GPAQSEL2.bit.GPIO17 = 3; // Asynch qual for GPIO17 (CANRXB)
GpioCtrlRegs.GPAMUX2.bit.GPIO16 = 2; // Configure GPIO16 for CANTXB operation
GpioCtrlRegs.GPAMUX2.bit.GPIO17 = 2; // Configure GPIO17 for CANRXB operation
//配置eCAN的RX和TX分别为eCAN的接收和发射引脚
ECanbShadow.CANTIOC.all = ECanbRegs.CANTIOC.all;
ECanbShadow.CANTIOC.bit.TXFUNC = 1;
ECanbRegs.CANTIOC.all = ECanbShadow.CANTIOC.all;
ECanbShadow.CANRIOC.all = ECanbRegs.CANRIOC.all;
ECanbShadow.CANRIOC.bit.RXFUNC = 1;
ECanbRegs.CANRIOC.all = ECanbShadow.CANRIOC.all;
/* Configure bit timing parameters for eCANB*/
ECanbShadow.CANMC.all = ECanbRegs.CANMC.all;
ECanbShadow.CANMC.bit.CCR = 1 ; // Set CCR = 1
ECanbRegs.CANMC.all = ECanbShadow.CANMC.all;
ECanbShadow.CANES.all = ECanbRegs.CANES.all;
do
{ECanbShadow.CANES.bit.CCE=ECanbRegs.CANES.bit.CCE;}
while(ECanbShadow.CANES.bit.CCE != 1 ) ; // Wait for CCE bit to be set..CCE等于1时跳出循环，则可以对CANBTC设置
//设置通信波特率
ECanbShadow.CANBTC.all = ECanbRegs.CANBTC.all;
ECanbShadow.CANBTC.bit.BRPREG = 9;
/*150/10=15*/
ECanbShadow.CANBTC.bit.TSEG2REG = 2;
ECanbShadow.CANBTC.bit.TSEG1REG = 10;
ECanbRegs.CANBTC.all = ECanbShadow.CANBTC.all;
ECanbShadow.CANMC.all = ECanbRegs.CANMC.all;
ECanbShadow.CANMC.bit.STM = 0; //工作在正常模式
ECanbShadow.CANMC.bit.DBO = 1;
ECanbShadow.CANMC.bit.SCB = 1;
ECanbRegs.CANMC.all = ECanbShadow.CANMC.all;
do
{
// ECanbShadow.CANES.all = ECanbRegs.CANES.all;
ECanbShadow.CANES.bit.CCE = 0;
} while(ECanbShadow.CANES.bit.CCE != 0 ); // Wait for CCE bit to be cleared..
//初始化所有主设备控制区域为0，MCF所有的位都初始化为0
ECanbMboxes.MBOX0.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX1.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX2.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX3.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX4.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX5.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX6.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX7.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX8.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX9.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX10.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX11.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX12.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX13.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX14.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX15.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX16.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX17.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX18.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX19.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX20.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX21.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX22.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX23.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX24.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX25.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX26.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX27.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX28.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX29.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX30.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX31.MSGCTRL.all = 0x00000000;
// TAn, RMPn, GIFn bits are all zero upon reset and are cleared again
// as a matter of precaution.
ECanbShadow.CANTA.all = ECanbRegs.CANTA.all;
ECanbShadow.CANTA.all = 0xFFFFFFFF;
ECanbRegs.CANTA.all = ECanbShadow.CANTA.all;
ECanbShadow.CANRMP.all = ECanbRegs.CANRMP.all;
ECanbShadow.CANRMP.all = 0xFFFFFFFF;
ECanbRegs.CANRMP.all = ECanbShadow.CANRMP.all;
ECanbShadow.CANGIF0.all = ECanbRegs.CANGIF0.all;
ECanbShadow.CANGIF0.all = 0xFFFFFFFF;
ECanbRegs.CANGIF0.all = ECanbShadow.CANGIF0.all;
ECanbShadow.CANGIF1.all = ECanbRegs.CANGIF1.all;
ECanbShadow.CANGIF1.all = 0xFFFFFFFF;
ECanbRegs.CANGIF1.all = ECanbShadow.CANGIF1.all;
EALLOW;
/* Mailbox interrupt is disable*/
ECanbShadow.CANGIM.all = 0x00000000;
ECanbRegs.CANGIM.all = ECanbShadow.CANGIM.all;
ECanbShadow.CANMIM.all = 0x00000000;
ECanbRegs.CANMIM.all = ECanbShadow.CANMIM.all;
ECanbShadow.CANMIL.all = 0xFFFFFFFF;
ECanbRegs.CANMIL.all = ECanbShadow.CANMIL.all;
EDIS;
/* Set ECan mailboxs */
ECanbRegs.CANME.all = 0x00000000;
//The ID of sendmail
ECanbMboxes.MBOX0.MSGID.all = 0xCF00FFFF; //CF00FFFF 1100 1111 0000 0000 1111 1111 1111 1111
//The ID of receivemail
ECanbMboxes.MBOX16.MSGID.all = 0x80C20000;//CF02FFFF 1100 1111 0000 0010 1111 1111 1111 1111
/*数据长度为8byte*/
ECanbMboxes.MBOX0.MSGCTRL.bit.DLC = 8;
ECanbMboxes.MBOX16.MSGCTRL.bit.DLC = 8;
/*The mail0 is TX;The mail16 is RX*/
ECanbShadow.CANMD.all = ECanbRegs.CANMD.all;
ECanbShadow.CANMD.bit.MD0 =0;
ECanbShadow.CANMD.bit.MD16 =1;
ECanbRegs.CANMD.all = ECanbShadow.CANMD.all;
ECanbShadow.CANME.all = ECanbRegs.CANME.all;
ECanbShadow.CANME.all = 0x00010001; // Required before writing the MSGIDs 0000 0000 0000 0001 0000 0000 0000 0001
ECanbRegs.CANME.all = ECanbShadow.CANME.all;
// /*没有远方应答帧被请求*/
ECanbMboxes.MBOX16.MSGCTRL.bit.RTR = 0;
//邮箱屏蔽使能
ECanbRegs.CANMIM.all = 0xFFFFFFFF;
//邮箱中断将产生在ECAN0INT
ECanbRegs.CANMIL.all = 0;
ECanbRegs.CANGIF0.all = 0xFFFFFFFF;
//ECAN0INT中断请求被使能
ECanbRegs.CANGIM.bit.I0EN = 1;
EDIS;
}
Gaofeng li：
回复 JT Niu:
检查下DSP2833x_SysCtrl.c文件中，中断时能时钟有没有使能？
按照官方配置，配置完can接收，采用中断接收，debug时进不了中断。有没有遇到类似情况的？求解答。
void InitECan(void) // Initialize eCAN-B module
{
struct ECAN_REGS ECanbShadow;
EALLOW; // EALLOW enables access to protected bits
//配置GPIO工作在额eCAN功能
GpioCtrlRegs.GPAPUD.bit.GPIO16 = 1; // Disable pull-up for GPIO16 (CANTXB)
GpioCtrlRegs.GPAPUD.bit.GPIO17 = 0; // Enable pull-up for GPIO17 (CANRXB)
GpioCtrlRegs.GPAQSEL2.bit.GPIO17 = 3; // Asynch qual for GPIO17 (CANRXB)
GpioCtrlRegs.GPAMUX2.bit.GPIO16 = 2; // Configure GPIO16 for CANTXB operation
GpioCtrlRegs.GPAMUX2.bit.GPIO17 = 2; // Configure GPIO17 for CANRXB operation
//配置eCAN的RX和TX分别为eCAN的接收和发射引脚
ECanbShadow.CANTIOC.all = ECanbRegs.CANTIOC.all;
ECanbShadow.CANTIOC.bit.TXFUNC = 1;
ECanbRegs.CANTIOC.all = ECanbShadow.CANTIOC.all;
ECanbShadow.CANRIOC.all = ECanbRegs.CANRIOC.all;
ECanbShadow.CANRIOC.bit.RXFUNC = 1;
ECanbRegs.CANRIOC.all = ECanbShadow.CANRIOC.all;
/* Configure bit timing parameters for eCANB*/
ECanbShadow.CANMC.all = ECanbRegs.CANMC.all;
ECanbShadow.CANMC.bit.CCR = 1 ; // Set CCR = 1
ECanbRegs.CANMC.all = ECanbShadow.CANMC.all;
ECanbShadow.CANES.all = ECanbRegs.CANES.all;
do
{ECanbShadow.CANES.bit.CCE=ECanbRegs.CANES.bit.CCE;}
while(ECanbShadow.CANES.bit.CCE != 1 ) ; // Wait for CCE bit to be set..CCE等于1时跳出循环，则可以对CANBTC设置
//设置通信波特率
ECanbShadow.CANBTC.all = ECanbRegs.CANBTC.all;
ECanbShadow.CANBTC.bit.BRPREG = 9;
/*150/10=15*/
ECanbShadow.CANBTC.bit.TSEG2REG = 2;
ECanbShadow.CANBTC.bit.TSEG1REG = 10;
ECanbRegs.CANBTC.all = ECanbShadow.CANBTC.all;
ECanbShadow.CANMC.all = ECanbRegs.CANMC.all;
ECanbShadow.CANMC.bit.STM = 0; //工作在正常模式
ECanbShadow.CANMC.bit.DBO = 1;
ECanbShadow.CANMC.bit.SCB = 1;
ECanbRegs.CANMC.all = ECanbShadow.CANMC.all;
do
{
// ECanbShadow.CANES.all = ECanbRegs.CANES.all;
ECanbShadow.CANES.bit.CCE = 0;
} while(ECanbShadow.CANES.bit.CCE != 0 ); // Wait for CCE bit to be cleared..
//初始化所有主设备控制区域为0，MCF所有的位都初始化为0
ECanbMboxes.MBOX0.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX1.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX2.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX3.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX4.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX5.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX6.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX7.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX8.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX9.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX10.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX11.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX12.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX13.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX14.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX15.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX16.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX17.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX18.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX19.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX20.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX21.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX22.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX23.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX24.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX25.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX26.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX27.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX28.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX29.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX30.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX31.MSGCTRL.all = 0x00000000;
// TAn, RMPn, GIFn bits are all zero upon reset and are cleared again
// as a matter of precaution.
ECanbShadow.CANTA.all = ECanbRegs.CANTA.all;
ECanbShadow.CANTA.all = 0xFFFFFFFF;
ECanbRegs.CANTA.all = ECanbShadow.CANTA.all;
ECanbShadow.CANRMP.all = ECanbRegs.CANRMP.all;
ECanbShadow.CANRMP.all = 0xFFFFFFFF;
ECanbRegs.CANRMP.all = ECanbShadow.CANRMP.all;
ECanbShadow.CANGIF0.all = ECanbRegs.CANGIF0.all;
ECanbShadow.CANGIF0.all = 0xFFFFFFFF;
ECanbRegs.CANGIF0.all = ECanbShadow.CANGIF0.all;
ECanbShadow.CANGIF1.all = ECanbRegs.CANGIF1.all;
ECanbShadow.CANGIF1.all = 0xFFFFFFFF;
ECanbRegs.CANGIF1.all = ECanbShadow.CANGIF1.all;
EALLOW;
/* Mailbox interrupt is disable*/
ECanbShadow.CANGIM.all = 0x00000000;
ECanbRegs.CANGIM.all = ECanbShadow.CANGIM.all;
ECanbShadow.CANMIM.all = 0x00000000;
ECanbRegs.CANMIM.all = ECanbShadow.CANMIM.all;
ECanbShadow.CANMIL.all = 0xFFFFFFFF;
ECanbRegs.CANMIL.all = ECanbShadow.CANMIL.all;
EDIS;
/* Set ECan mailboxs */
ECanbRegs.CANME.all = 0x00000000;
//The ID of sendmail
ECanbMboxes.MBOX0.MSGID.all = 0xCF00FFFF; //CF00FFFF 1100 1111 0000 0000 1111 1111 1111 1111
//The ID of receivemail
ECanbMboxes.MBOX16.MSGID.all = 0x80C20000;//CF02FFFF 1100 1111 0000 0010 1111 1111 1111 1111
/*数据长度为8byte*/
ECanbMboxes.MBOX0.MSGCTRL.bit.DLC = 8;
ECanbMboxes.MBOX16.MSGCTRL.bit.DLC = 8;
/*The mail0 is TX;The mail16 is RX*/
ECanbShadow.CANMD.all = ECanbRegs.CANMD.all;
ECanbShadow.CANMD.bit.MD0 =0;
ECanbShadow.CANMD.bit.MD16 =1;
ECanbRegs.CANMD.all = ECanbShadow.CANMD.all;
ECanbShadow.CANME.all = ECanbRegs.CANME.all;
ECanbShadow.CANME.all = 0x00010001; // Required before writing the MSGIDs 0000 0000 0000 0001 0000 0000 0000 0001
ECanbRegs.CANME.all = ECanbShadow.CANME.all;
// /*没有远方应答帧被请求*/
ECanbMboxes.MBOX16.MSGCTRL.bit.RTR = 0;
//邮箱屏蔽使能
ECanbRegs.CANMIM.all = 0xFFFFFFFF;
//邮箱中断将产生在ECAN0INT
ECanbRegs.CANMIL.all = 0;
ECanbRegs.CANGIF0.all = 0xFFFFFFFF;
//ECAN0INT中断请求被使能
ECanbRegs.CANGIM.bit.I0EN = 1;
EDIS;
}
JT Niu：
回复 Gaofeng li:
恩，检查过了，使能了。
按照官方配置，配置完can接收，采用中断接收，debug时进不了中断。有没有遇到类似情况的？求解答。
void InitECan(void) // Initialize eCAN-B module
{
struct ECAN_REGS ECanbShadow;
EALLOW; // EALLOW enables access to protected bits
//配置GPIO工作在额eCAN功能
GpioCtrlRegs.GPAPUD.bit.GPIO16 = 1; // Disable pull-up for GPIO16 (CANTXB)
GpioCtrlRegs.GPAPUD.bit.GPIO17 = 0; // Enable pull-up for GPIO17 (CANRXB)
GpioCtrlRegs.GPAQSEL2.bit.GPIO17 = 3; // Asynch qual for GPIO17 (CANRXB)
GpioCtrlRegs.GPAMUX2.bit.GPIO16 = 2; // Configure GPIO16 for CANTXB operation
GpioCtrlRegs.GPAMUX2.bit.GPIO17 = 2; // Configure GPIO17 for CANRXB operation
//配置eCAN的RX和TX分别为eCAN的接收和发射引脚
ECanbShadow.CANTIOC.all = ECanbRegs.CANTIOC.all;
ECanbShadow.CANTIOC.bit.TXFUNC = 1;
ECanbRegs.CANTIOC.all = ECanbShadow.CANTIOC.all;
ECanbShadow.CANRIOC.all = ECanbRegs.CANRIOC.all;
ECanbShadow.CANRIOC.bit.RXFUNC = 1;
ECanbRegs.CANRIOC.all = ECanbShadow.CANRIOC.all;
/* Configure bit timing parameters for eCANB*/
ECanbShadow.CANMC.all = ECanbRegs.CANMC.all;
ECanbShadow.CANMC.bit.CCR = 1 ; // Set CCR = 1
ECanbRegs.CANMC.all = ECanbShadow.CANMC.all;
ECanbShadow.CANES.all = ECanbRegs.CANES.all;
do
{ECanbShadow.CANES.bit.CCE=ECanbRegs.CANES.bit.CCE;}
while(ECanbShadow.CANES.bit.CCE != 1 ) ; // Wait for CCE bit to be set..CCE等于1时跳出循环，则可以对CANBTC设置
//设置通信波特率
ECanbShadow.CANBTC.all = ECanbRegs.CANBTC.all;
ECanbShadow.CANBTC.bit.BRPREG = 9;
/*150/10=15*/
ECanbShadow.CANBTC.bit.TSEG2REG = 2;
ECanbShadow.CANBTC.bit.TSEG1REG = 10;
ECanbRegs.CANBTC.all = ECanbShadow.CANBTC.all;
ECanbShadow.CANMC.all = ECanbRegs.CANMC.all;
ECanbShadow.CANMC.bit.STM = 0; //工作在正常模式
ECanbShadow.CANMC.bit.DBO = 1;
ECanbShadow.CANMC.bit.SCB = 1;
ECanbRegs.CANMC.all = ECanbShadow.CANMC.all;
do
{
// ECanbShadow.CANES.all = ECanbRegs.CANES.all;
ECanbShadow.CANES.bit.CCE = 0;
} while(ECanbShadow.CANES.bit.CCE != 0 ); // Wait for CCE bit to be cleared..
//初始化所有主设备控制区域为0，MCF所有的位都初始化为0
ECanbMboxes.MBOX0.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX1.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX2.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX3.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX4.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX5.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX6.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX7.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX8.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX9.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX10.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX11.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX12.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX13.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX14.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX15.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX16.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX17.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX18.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX19.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX20.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX21.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX22.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX23.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX24.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX25.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX26.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX27.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX28.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX29.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX30.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX31.MSGCTRL.all = 0x00000000;
// TAn, RMPn, GIFn bits are all zero upon reset and are cleared again
// as a matter of precaution.
ECanbShadow.CANTA.all = ECanbRegs.CANTA.all;
ECanbShadow.CANTA.all = 0xFFFFFFFF;
ECanbRegs.CANTA.all = ECanbShadow.CANTA.all;
ECanbShadow.CANRMP.all = ECanbRegs.CANRMP.all;
ECanbShadow.CANRMP.all = 0xFFFFFFFF;
ECanbRegs.CANRMP.all = ECanbShadow.CANRMP.all;
ECanbShadow.CANGIF0.all = ECanbRegs.CANGIF0.all;
ECanbShadow.CANGIF0.all = 0xFFFFFFFF;
ECanbRegs.CANGIF0.all = ECanbShadow.CANGIF0.all;
ECanbShadow.CANGIF1.all = ECanbRegs.CANGIF1.all;
ECanbShadow.CANGIF1.all = 0xFFFFFFFF;
ECanbRegs.CANGIF1.all = ECanbShadow.CANGIF1.all;
EALLOW;
/* Mailbox interrupt is disable*/
ECanbShadow.CANGIM.all = 0x00000000;
ECanbRegs.CANGIM.all = ECanbShadow.CANGIM.all;
ECanbShadow.CANMIM.all = 0x00000000;
ECanbRegs.CANMIM.all = ECanbShadow.CANMIM.all;
ECanbShadow.CANMIL.all = 0xFFFFFFFF;
ECanbRegs.CANMIL.all = ECanbShadow.CANMIL.all;
EDIS;
/* Set ECan mailboxs */
ECanbRegs.CANME.all = 0x00000000;
//The ID of sendmail
ECanbMboxes.MBOX0.MSGID.all = 0xCF00FFFF; //CF00FFFF 1100 1111 0000 0000 1111 1111 1111 1111
//The ID of receivemail
ECanbMboxes.MBOX16.MSGID.all = 0x80C20000;//CF02FFFF 1100 1111 0000 0010 1111 1111 1111 1111
/*数据长度为8byte*/
ECanbMboxes.MBOX0.MSGCTRL.bit.DLC = 8;
ECanbMboxes.MBOX16.MSGCTRL.bit.DLC = 8;
/*The mail0 is TX;The mail16 is RX*/
ECanbShadow.CANMD.all = ECanbRegs.CANMD.all;
ECanbShadow.CANMD.bit.MD0 =0;
ECanbShadow.CANMD.bit.MD16 =1;
ECanbRegs.CANMD.all = ECanbShadow.CANMD.all;
ECanbShadow.CANME.all = ECanbRegs.CANME.all;
ECanbShadow.CANME.all = 0x00010001; // Required before writing the MSGIDs 0000 0000 0000 0001 0000 0000 0000 0001
ECanbRegs.CANME.all = ECanbShadow.CANME.all;
// /*没有远方应答帧被请求*/
ECanbMboxes.MBOX16.MSGCTRL.bit.RTR = 0;
//邮箱屏蔽使能
ECanbRegs.CANMIM.all = 0xFFFFFFFF;
//邮箱中断将产生在ECAN0INT
ECanbRegs.CANMIL.all = 0;
ECanbRegs.CANGIF0.all = 0xFFFFFFFF;
//ECAN0INT中断请求被使能
ECanbRegs.CANGIM.bit.I0EN = 1;
EDIS;
}
JT Niu：
再问下论坛大神，can模块接收时，如何通过观察寄存器，判断接收邮箱确实接收到了数据啊？
按照官方配置，配置完can接收，采用中断接收，debug时进不了中断。有没有遇到类似情况的？求解答。
void InitECan(void) // Initialize eCAN-B module
{
struct ECAN_REGS ECanbShadow;
EALLOW; // EALLOW enables access to protected bits
//配置GPIO工作在额eCAN功能
GpioCtrlRegs.GPAPUD.bit.GPIO16 = 1; // Disable pull-up for GPIO16 (CANTXB)
GpioCtrlRegs.GPAPUD.bit.GPIO17 = 0; // Enable pull-up for GPIO17 (CANRXB)
GpioCtrlRegs.GPAQSEL2.bit.GPIO17 = 3; // Asynch qual for GPIO17 (CANRXB)
GpioCtrlRegs.GPAMUX2.bit.GPIO16 = 2; // Configure GPIO16 for CANTXB operation
GpioCtrlRegs.GPAMUX2.bit.GPIO17 = 2; // Configure GPIO17 for CANRXB operation
//配置eCAN的RX和TX分别为eCAN的接收和发射引脚
ECanbShadow.CANTIOC.all = ECanbRegs.CANTIOC.all;
ECanbShadow.CANTIOC.bit.TXFUNC = 1;
ECanbRegs.CANTIOC.all = ECanbShadow.CANTIOC.all;
ECanbShadow.CANRIOC.all = ECanbRegs.CANRIOC.all;
ECanbShadow.CANRIOC.bit.RXFUNC = 1;
ECanbRegs.CANRIOC.all = ECanbShadow.CANRIOC.all;
/* Configure bit timing parameters for eCANB*/
ECanbShadow.CANMC.all = ECanbRegs.CANMC.all;
ECanbShadow.CANMC.bit.CCR = 1 ; // Set CCR = 1
ECanbRegs.CANMC.all = ECanbShadow.CANMC.all;
ECanbShadow.CANES.all = ECanbRegs.CANES.all;
do
{ECanbShadow.CANES.bit.CCE=ECanbRegs.CANES.bit.CCE;}
while(ECanbShadow.CANES.bit.CCE != 1 ) ; // Wait for CCE bit to be set..CCE等于1时跳出循环，则可以对CANBTC设置
//设置通信波特率
ECanbShadow.CANBTC.all = ECanbRegs.CANBTC.all;
ECanbShadow.CANBTC.bit.BRPREG = 9;
/*150/10=15*/
ECanbShadow.CANBTC.bit.TSEG2REG = 2;
ECanbShadow.CANBTC.bit.TSEG1REG = 10;
ECanbRegs.CANBTC.all = ECanbShadow.CANBTC.all;
ECanbShadow.CANMC.all = ECanbRegs.CANMC.all;
ECanbShadow.CANMC.bit.STM = 0; //工作在正常模式
ECanbShadow.CANMC.bit.DBO = 1;
ECanbShadow.CANMC.bit.SCB = 1;
ECanbRegs.CANMC.all = ECanbShadow.CANMC.all;
do
{
// ECanbShadow.CANES.all = ECanbRegs.CANES.all;
ECanbShadow.CANES.bit.CCE = 0;
} while(ECanbShadow.CANES.bit.CCE != 0 ); // Wait for CCE bit to be cleared..
//初始化所有主设备控制区域为0，MCF所有的位都初始化为0
ECanbMboxes.MBOX0.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX1.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX2.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX3.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX4.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX5.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX6.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX7.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX8.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX9.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX10.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX11.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX12.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX13.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX14.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX15.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX16.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX17.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX18.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX19.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX20.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX21.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX22.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX23.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX24.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX25.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX26.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX27.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX28.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX29.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX30.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX31.MSGCTRL.all = 0x00000000;
// TAn, RMPn, GIFn bits are all zero upon reset and are cleared again
// as a matter of precaution.
ECanbShadow.CANTA.all = ECanbRegs.CANTA.all;
ECanbShadow.CANTA.all = 0xFFFFFFFF;
ECanbRegs.CANTA.all = ECanbShadow.CANTA.all;
ECanbShadow.CANRMP.all = ECanbRegs.CANRMP.all;
ECanbShadow.CANRMP.all = 0xFFFFFFFF;
ECanbRegs.CANRMP.all = ECanbShadow.CANRMP.all;
ECanbShadow.CANGIF0.all = ECanbRegs.CANGIF0.all;
ECanbShadow.CANGIF0.all = 0xFFFFFFFF;
ECanbRegs.CANGIF0.all = ECanbShadow.CANGIF0.all;
ECanbShadow.CANGIF1.all = ECanbRegs.CANGIF1.all;
ECanbShadow.CANGIF1.all = 0xFFFFFFFF;
ECanbRegs.CANGIF1.all = ECanbShadow.CANGIF1.all;
EALLOW;
/* Mailbox interrupt is disable*/
ECanbShadow.CANGIM.all = 0x00000000;
ECanbRegs.CANGIM.all = ECanbShadow.CANGIM.all;
ECanbShadow.CANMIM.all = 0x00000000;
ECanbRegs.CANMIM.all = ECanbShadow.CANMIM.all;
ECanbShadow.CANMIL.all = 0xFFFFFFFF;
ECanbRegs.CANMIL.all = ECanbShadow.CANMIL.all;
EDIS;
/* Set ECan mailboxs */
ECanbRegs.CANME.all = 0x00000000;
//The ID of sendmail
ECanbMboxes.MBOX0.MSGID.all = 0xCF00FFFF; //CF00FFFF 1100 1111 0000 0000 1111 1111 1111 1111
//The ID of receivemail
ECanbMboxes.MBOX16.MSGID.all = 0x80C20000;//CF02FFFF 1100 1111 0000 0010 1111 1111 1111 1111
/*数据长度为8byte*/
ECanbMboxes.MBOX0.MSGCTRL.bit.DLC = 8;
ECanbMboxes.MBOX16.MSGCTRL.bit.DLC = 8;
/*The mail0 is TX;The mail16 is RX*/
ECanbShadow.CANMD.all = ECanbRegs.CANMD.all;
ECanbShadow.CANMD.bit.MD0 =0;
ECanbShadow.CANMD.bit.MD16 =1;
ECanbRegs.CANMD.all = ECanbShadow.CANMD.all;
ECanbShadow.CANME.all = ECanbRegs.CANME.all;
ECanbShadow.CANME.all = 0x00010001; // Required before writing the MSGIDs 0000 0000 0000 0001 0000 0000 0000 0001
ECanbRegs.CANME.all = ECanbShadow.CANME.all;
// /*没有远方应答帧被请求*/
ECanbMboxes.MBOX16.MSGCTRL.bit.RTR = 0;
//邮箱屏蔽使能
ECanbRegs.CANMIM.all = 0xFFFFFFFF;
//邮箱中断将产生在ECAN0INT
ECanbRegs.CANMIL.all = 0;
ECanbRegs.CANGIF0.all = 0xFFFFFFFF;
//ECAN0INT中断请求被使能
ECanbRegs.CANGIM.bit.I0EN = 1;
EDIS;
}
beidoubushixing：
回复 JT Niu:
1.看RMP位是否会置位。
2.可以在接收数据函数里面，将数据读出到变量，再去观察。
按照官方配置，配置完can接收，采用中断接收，debug时进不了中断。有没有遇到类似情况的？求解答。
void InitECan(void) // Initialize eCAN-B module
{
struct ECAN_REGS ECanbShadow;
EALLOW; // EALLOW enables access to protected bits
//配置GPIO工作在额eCAN功能
GpioCtrlRegs.GPAPUD.bit.GPIO16 = 1; // Disable pull-up for GPIO16 (CANTXB)
GpioCtrlRegs.GPAPUD.bit.GPIO17 = 0; // Enable pull-up for GPIO17 (CANRXB)
GpioCtrlRegs.GPAQSEL2.bit.GPIO17 = 3; // Asynch qual for GPIO17 (CANRXB)
GpioCtrlRegs.GPAMUX2.bit.GPIO16 = 2; // Configure GPIO16 for CANTXB operation
GpioCtrlRegs.GPAMUX2.bit.GPIO17 = 2; // Configure GPIO17 for CANRXB operation
//配置eCAN的RX和TX分别为eCAN的接收和发射引脚
ECanbShadow.CANTIOC.all = ECanbRegs.CANTIOC.all;
ECanbShadow.CANTIOC.bit.TXFUNC = 1;
ECanbRegs.CANTIOC.all = ECanbShadow.CANTIOC.all;
ECanbShadow.CANRIOC.all = ECanbRegs.CANRIOC.all;
ECanbShadow.CANRIOC.bit.RXFUNC = 1;
ECanbRegs.CANRIOC.all = ECanbShadow.CANRIOC.all;
/* Configure bit timing parameters for eCANB*/
ECanbShadow.CANMC.all = ECanbRegs.CANMC.all;
ECanbShadow.CANMC.bit.CCR = 1 ; // Set CCR = 1
ECanbRegs.CANMC.all = ECanbShadow.CANMC.all;
ECanbShadow.CANES.all = ECanbRegs.CANES.all;
do
{ECanbShadow.CANES.bit.CCE=ECanbRegs.CANES.bit.CCE;}
while(ECanbShadow.CANES.bit.CCE != 1 ) ; // Wait for CCE bit to be set..CCE等于1时跳出循环，则可以对CANBTC设置
//设置通信波特率
ECanbShadow.CANBTC.all = ECanbRegs.CANBTC.all;
ECanbShadow.CANBTC.bit.BRPREG = 9;
/*150/10=15*/
ECanbShadow.CANBTC.bit.TSEG2REG = 2;
ECanbShadow.CANBTC.bit.TSEG1REG = 10;
ECanbRegs.CANBTC.all = ECanbShadow.CANBTC.all;
ECanbShadow.CANMC.all = ECanbRegs.CANMC.all;
ECanbShadow.CANMC.bit.STM = 0; //工作在正常模式
ECanbShadow.CANMC.bit.DBO = 1;
ECanbShadow.CANMC.bit.SCB = 1;
ECanbRegs.CANMC.all = ECanbShadow.CANMC.all;
do
{
// ECanbShadow.CANES.all = ECanbRegs.CANES.all;
ECanbShadow.CANES.bit.CCE = 0;
} while(ECanbShadow.CANES.bit.CCE != 0 ); // Wait for CCE bit to be cleared..
//初始化所有主设备控制区域为0，MCF所有的位都初始化为0
ECanbMboxes.MBOX0.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX1.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX2.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX3.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX4.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX5.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX6.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX7.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX8.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX9.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX10.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX11.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX12.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX13.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX14.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX15.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX16.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX17.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX18.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX19.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX20.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX21.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX22.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX23.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX24.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX25.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX26.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX27.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX28.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX29.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX30.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX31.MSGCTRL.all = 0x00000000;
// TAn, RMPn, GIFn bits are all zero upon reset and are cleared again
// as a matter of precaution.
ECanbShadow.CANTA.all = ECanbRegs.CANTA.all;
ECanbShadow.CANTA.all = 0xFFFFFFFF;
ECanbRegs.CANTA.all = ECanbShadow.CANTA.all;
ECanbShadow.CANRMP.all = ECanbRegs.CANRMP.all;
ECanbShadow.CANRMP.all = 0xFFFFFFFF;
ECanbRegs.CANRMP.all = ECanbShadow.CANRMP.all;
ECanbShadow.CANGIF0.all = ECanbRegs.CANGIF0.all;
ECanbShadow.CANGIF0.all = 0xFFFFFFFF;
ECanbRegs.CANGIF0.all = ECanbShadow.CANGIF0.all;
ECanbShadow.CANGIF1.all = ECanbRegs.CANGIF1.all;
ECanbShadow.CANGIF1.all = 0xFFFFFFFF;
ECanbRegs.CANGIF1.all = ECanbShadow.CANGIF1.all;
EALLOW;
/* Mailbox interrupt is disable*/
ECanbShadow.CANGIM.all = 0x00000000;
ECanbRegs.CANGIM.all = ECanbShadow.CANGIM.all;
ECanbShadow.CANMIM.all = 0x00000000;
ECanbRegs.CANMIM.all = ECanbShadow.CANMIM.all;
ECanbShadow.CANMIL.all = 0xFFFFFFFF;
ECanbRegs.CANMIL.all = ECanbShadow.CANMIL.all;
EDIS;
/* Set ECan mailboxs */
ECanbRegs.CANME.all = 0x00000000;
//The ID of sendmail
ECanbMboxes.MBOX0.MSGID.all = 0xCF00FFFF; //CF00FFFF 1100 1111 0000 0000 1111 1111 1111 1111
//The ID of receivemail
ECanbMboxes.MBOX16.MSGID.all = 0x80C20000;//CF02FFFF 1100 1111 0000 0010 1111 1111 1111 1111
/*数据长度为8byte*/
ECanbMboxes.MBOX0.MSGCTRL.bit.DLC = 8;
ECanbMboxes.MBOX16.MSGCTRL.bit.DLC = 8;
/*The mail0 is TX;The mail16 is RX*/
ECanbShadow.CANMD.all = ECanbRegs.CANMD.all;
ECanbShadow.CANMD.bit.MD0 =0;
ECanbShadow.CANMD.bit.MD16 =1;
ECanbRegs.CANMD.all = ECanbShadow.CANMD.all;
ECanbShadow.CANME.all = ECanbRegs.CANME.all;
ECanbShadow.CANME.all = 0x00010001; // Required before writing the MSGIDs 0000 0000 0000 0001 0000 0000 0000 0001
ECanbRegs.CANME.all = ECanbShadow.CANME.all;
// /*没有远方应答帧被请求*/
ECanbMboxes.MBOX16.MSGCTRL.bit.RTR = 0;
//邮箱屏蔽使能
ECanbRegs.CANMIM.all = 0xFFFFFFFF;
//邮箱中断将产生在ECAN0INT
ECanbRegs.CANMIL.all = 0;
ECanbRegs.CANGIF0.all = 0xFFFFFFFF;
//ECAN0INT中断请求被使能
ECanbRegs.CANGIM.bit.I0EN = 1;
EDIS;
}
cuiling qi：
回复 JT Niu:
请问您这个程序调通了吗？之前我也在看CAN通信，就一直有一个问题就是当RLC设置成8的时候是MDL和MDH分别是8BYTE，还是加起来是8BYTE？
按照官方配置，配置完can接收，采用中断接收，debug时进不了中断。有没有遇到类似情况的？求解答。
void InitECan(void) // Initialize eCAN-B module
{
struct ECAN_REGS ECanbShadow;
EALLOW; // EALLOW enables access to protected bits
//配置GPIO工作在额eCAN功能
GpioCtrlRegs.GPAPUD.bit.GPIO16 = 1; // Disable pull-up for GPIO16 (CANTXB)
GpioCtrlRegs.GPAPUD.bit.GPIO17 = 0; // Enable pull-up for GPIO17 (CANRXB)
GpioCtrlRegs.GPAQSEL2.bit.GPIO17 = 3; // Asynch qual for GPIO17 (CANRXB)
GpioCtrlRegs.GPAMUX2.bit.GPIO16 = 2; // Configure GPIO16 for CANTXB operation
GpioCtrlRegs.GPAMUX2.bit.GPIO17 = 2; // Configure GPIO17 for CANRXB operation
//配置eCAN的RX和TX分别为eCAN的接收和发射引脚
ECanbShadow.CANTIOC.all = ECanbRegs.CANTIOC.all;
ECanbShadow.CANTIOC.bit.TXFUNC = 1;
ECanbRegs.CANTIOC.all = ECanbShadow.CANTIOC.all;
ECanbShadow.CANRIOC.all = ECanbRegs.CANRIOC.all;
ECanbShadow.CANRIOC.bit.RXFUNC = 1;
ECanbRegs.CANRIOC.all = ECanbShadow.CANRIOC.all;
/* Configure bit timing parameters for eCANB*/
ECanbShadow.CANMC.all = ECanbRegs.CANMC.all;
ECanbShadow.CANMC.bit.CCR = 1 ; // Set CCR = 1
ECanbRegs.CANMC.all = ECanbShadow.CANMC.all;
ECanbShadow.CANES.all = ECanbRegs.CANES.all;
do
{ECanbShadow.CANES.bit.CCE=ECanbRegs.CANES.bit.CCE;}
while(ECanbShadow.CANES.bit.CCE != 1 ) ; // Wait for CCE bit to be set..CCE等于1时跳出循环，则可以对CANBTC设置
//设置通信波特率
ECanbShadow.CANBTC.all = ECanbRegs.CANBTC.all;
ECanbShadow.CANBTC.bit.BRPREG = 9;
/*150/10=15*/
ECanbShadow.CANBTC.bit.TSEG2REG = 2;
ECanbShadow.CANBTC.bit.TSEG1REG = 10;
ECanbRegs.CANBTC.all = ECanbShadow.CANBTC.all;
ECanbShadow.CANMC.all = ECanbRegs.CANMC.all;
ECanbShadow.CANMC.bit.STM = 0; //工作在正常模式
ECanbShadow.CANMC.bit.DBO = 1;
ECanbShadow.CANMC.bit.SCB = 1;
ECanbRegs.CANMC.all = ECanbShadow.CANMC.all;
do
{
// ECanbShadow.CANES.all = ECanbRegs.CANES.all;
ECanbShadow.CANES.bit.CCE = 0;
} while(ECanbShadow.CANES.bit.CCE != 0 ); // Wait for CCE bit to be cleared..
//初始化所有主设备控制区域为0，MCF所有的位都初始化为0
ECanbMboxes.MBOX0.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX1.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX2.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX3.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX4.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX5.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX6.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX7.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX8.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX9.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX10.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX11.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX12.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX13.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX14.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX15.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX16.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX17.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX18.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX19.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX20.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX21.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX22.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX23.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX24.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX25.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX26.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX27.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX28.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX29.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX30.MSGCTRL.all = 0x00000000;
ECanbMboxes.MBOX31.MSGCTRL.all = 0x00000000;
// TAn, RMPn, GIFn bits are all zero upon reset and are cleared again
// as a matter of precaution.
ECanbShadow.CANTA.all = ECanbRegs.CANTA.all;
ECanbShadow.CANTA.all = 0xFFFFFFFF;
ECanbRegs.CANTA.all = ECanbShadow.CANTA.all;
ECanbShadow.CANRMP.all = ECanbRegs.CANRMP.all;
ECanbShadow.CANRMP.all = 0xFFFFFFFF;
ECanbRegs.CANRMP.all = ECanbShadow.CANRMP.all;
ECanbShadow.CANGIF0.all = ECanbRegs.CANGIF0.all;
ECanbShadow.CANGIF0.all = 0xFFFFFFFF;
ECanbRegs.CANGIF0.all = ECanbShadow.CANGIF0.all;
ECanbShadow.CANGIF1.all = ECanbRegs.CANGIF1.all;
ECanbShadow.CANGIF1.all = 0xFFFFFFFF;
ECanbRegs.CANGIF1.all = ECanbShadow.CANGIF1.all;
EALLOW;
/* Mailbox interrupt is disable*/
ECanbShadow.CANGIM.all = 0x00000000;
ECanbRegs.CANGIM.all = ECanbShadow.CANGIM.all;
ECanbShadow.CANMIM.all = 0x00000000;
ECanbRegs.CANMIM.all = ECanbShadow.CANMIM.all;
ECanbShadow.CANMIL.all = 0xFFFFFFFF;
ECanbRegs.CANMIL.all = ECanbShadow.CANMIL.all;
EDIS;
/* Set ECan mailboxs */
ECanbRegs.CANME.all = 0x00000000;
//The ID of sendmail
ECanbMboxes.MBOX0.MSGID.all = 0xCF00FFFF; //CF00FFFF 1100 1111 0000 0000 1111 1111 1111 1111
//The ID of receivemail
ECanbMboxes.MBOX16.MSGID.all = 0x80C20000;//CF02FFFF 1100 1111 0000 0010 1111 1111 1111 1111
/*数据长度为8byte*/
ECanbMboxes.MBOX0.MSGCTRL.bit.DLC = 8;
ECanbMboxes.MBOX16.MSGCTRL.bit.DLC = 8;
/*The mail0 is TX;The mail16 is RX*/
ECanbShadow.CANMD.all = ECanbRegs.CANMD.all;
ECanbShadow.CANMD.bit.MD0 =0;
ECanbShadow.CANMD.bit.MD16 =1;
ECanbRegs.CANMD.all = ECanbShadow.CANMD.all;
ECanbShadow.CANME.all = ECanbRegs.CANME.all;
ECanbShadow.CANME.all = 0x00010001; // Required before writing the MSGIDs 0000 0000 0000 0001 0000 0000 0000 0001
ECanbRegs.CANME.all = ECanbShadow.CANME.all;
// /*没有远方应答帧被请求*/
ECanbMboxes.MBOX16.MSGCTRL.bit.RTR = 0;
//邮箱屏蔽使能
ECanbRegs.CANMIM.all = 0xFFFFFFFF;
//邮箱中断将产生在ECAN0INT
ECanbRegs.CANMIL.all = 0;
ECanbRegs.CANGIF0.all = 0xFFFFFFFF;
//ECAN0INT中断请求被使能
ECanbRegs.CANGIM.bit.I0EN = 1;
EDIS;
}
cuiling qi：
您好，请问您这个问题解决了吗？我的例程也是进不了中断
