你好：
我现在在使用TMS320F280049例程can_ex2_loopback_interrupts测试CAN中断接收。看到例程使用的是CAN_INT_IE0，我想把其修改为CAN_INT_IE1，我做了如下的程序修改：
CAN_enableInterrupt(CANA_BASE, CAN_INT_IE1);
Interrupt_register(INT_CANA1, &canISR);
Interrupt_enable(INT_CANA1);
CAN_enableGlobalInterrupt(CANA_BASE, CAN_GLOBAL_INT_CANINT1);
canISR中断函数中修改CAN_clearGlobalInterruptStatus(CANA_BASE, CAN_GLOBAL_INT_CANINT1);
然后，我进行测试发现接收数据未进入到中断里。请问，我还需要修改哪些地方
请您参考TRM的 26.16.2.21 CAN_IP_MUX21 Register (Offset = D8h) [reset = 0h]
https://www.ti.com.cn/cn/lit/ug/sprui33c/sprui33c.pdf
在代码中您可以search一下
//*****************************************************************************
//
//! Set the CAN controller Interrupt Line for each mailbox
//!
//! \param base is the base address of the CAN controller.
//! \param mux bit packed representation of which message objects should
//! generate an interrupt on a given interrupt line.
//!
//! Selects which interrupt line each message object should assert when an
//! interrupt occurs. Bit 0 corresponds to message object 32 and then bits
//! 1 to 31 correspond to message object 1 through 31 respectively. Bits that
//! are asserted indicate the message object should generate an interrupt on
//! interrupt line 1, while bits that are not asserted indicate the message
//! object should generate an interrupt on line 0.
//!
//! \return None.
//
//*****************************************************************************
static inline void
CAN_setInterruptMux(uint32_t base, uint32_t mux)
{
//
// Check the arguments.
//
ASSERT(CAN_isBaseValid(base));
//
// Set the interrupt muxing for the CAN peripheral
//
HWREG_BP(base + CAN_O_IP_MUX21) = mux;
}