[参考译文] TMS320F280025：DCAN 无法接收具有任意仲裁位的数据帧

https://e2e.ti.com/support/microcontrollers/c2000-microcontrollers-group/c2000/f/c2000-microcontrollers-forum/1122973/tms320f280025-dcan-cannot-receive-data-frames-with-arbitrary-arbitration-bits

尊敬的团队：

当客户测试 DCAN 模块时、他发现方向、仲裁位、长度等滤波功能没有使用、但是实际接收到的只有与仲裁位匹配的数据帧、并且不能接收到任何仲裁位的数据帧。  

以下是配置代码、问题出在哪里？

 初始化

//code_start

while (CANaRegs.CAN_IF1CMD.bit.BUSY = 1)；

CanaRegs.CAN_IF1MSK.All= 0；

CanaRegs.CAN_IF1ARB.All= CAN_IF1ARB_MSGVAL；
CANaRegs.CAN_IF1MCTL.All= CAN_IF1MCTL_EOB；
CANaRegs.CAN_IF1CMD.All= m_u32MsgobjectID|CAN_IF1CMD_DIR|CAN_IF1CMD_CONTROL.CAN_IF1CMD_ARB；  //m_u32RxMsgobjectID 是 邮箱编号

//code_end

2.接收部分代码：

//code_start

CANaRegs.CAN_IF2CMD.all = m_u32RxMsgobjectID|CAN_IF2CMD_DATA_A|CAN_IF2CMD_DATA_B|CAN_IF2CMD_CONTROL.CAN_IF2CMD_ARB；

while (CANaRegs.CAN_IF2CMD.bit.BUSY = 1)；

读取DATA数据=(uint16)(CANaRegs.CAN_IF2DATA.All&0xFF)~~~~~~

CANaRegs.CAN_IF2CMD.all = m_u32RxMsgobjectID|CAN_IF2CMD_TXRQST；  //m_u32RxMsgobjectID 是 邮箱编号

while (CANaRegs.CAN_IF2CMD.bit.BUSY = 1)；

//code_end

此致、

绿色