用非DMA方式中断接收数据能进SCI1接收中断，配置为DMA方式后就不行了，下面是我的SCI1和DMA配置代码
void Init_SCI1(void)
{
sciREG1->GCR0 = 0U;
sciREG1->GCR0 = 1U;
/** - Disable all interrupts */
sciREG1->CLEARINT = 0xFFFFFFFFU;
sciREG1->CLEARINTLVL = 0xFFFFFFFFU;
/** - global control 1 */
sciREG1->GCR1 = (uint32)((uint32)1U << 25U) /* enable transmit */
| (uint32)((uint32)1U << 24U) /* enable receive */
| (uint32)((uint32)0U << 10U) //多缓冲模式
| (uint32)((uint32)1U << 5U) /* internal clock (device has no clock pin) */
| (uint32)((uint32)(2U-1U) << 4U) /* number of stop bits */
| (uint32)((uint32)0U << 3U) /* even parity, otherwise odd */
| (uint32)((uint32)0U << 2U) /* enable parity */
| (uint32)((uint32)0U << 1U); /* 同步模式*/
/** - set baudrate */
sciREG1->BRS = 74;//487U; /* baudrate */
/** - transmission length */
sciREG1->FORMAT = 7; /* length */
/** - set SCI1 pins functional mode */
sciREG1->PIO0 = (uint32)((uint32)1U << 2U) /* tx pin */
| (uint32)((uint32)1U << 1U); /* rx pin */
/** - set SCI1 pins default output value */
sciREG1->PIO3 = (uint32)((uint32)0U << 2U) /* tx pin */
| (uint32)((uint32)0U << 1U); /* rx pin */
/** - set SCI1 pins output direction */
sciREG1->PIO1 = (uint32)((uint32)0U << 2U) /* tx pin */
| (uint32)((uint32)0U << 1U); /* rx pin */
/** - set SCI1 pins open drain enable */
sciREG1->PIO6 = (uint32)((uint32)0U << 2U) /* tx pin */
| (uint32)((uint32)0U << 1U); /* rx pin */
/** - set SCI1 pins pullup/pulldown enable */
sciREG1->PIO7 = (uint32)((uint32)0U << 2U) /* tx pin */
| (uint32)((uint32)0U << 1U); /* rx pin */
/** - set SCI1 pins pullup/pulldown select */
sciREG1->PIO8 = (uint32)((uint32)1U << 2U) /* tx pin */
| (uint32)((uint32)1U << 1U); /* rx pin */
/** - set interrupt level */
sciREG1->SETINTLVL = (uint32)((uint32)0U << 26U) /* Framing error */
| (uint32)((uint32)0U << 25U) /* Overrun error */
| (uint32)((uint32)0U << 24U) /* Parity error */
| (uint32)((uint32)1U << 9U) /* Receive */
| (uint32)((uint32)0U << 8U) /* Transmit */
| (uint32)((uint32)0U << 1U) /* Wakeup */
| (uint32)((uint32)0U << 0U); /* Break detect */
/** - set interrupt enable */
sciREG1->SETINT = (uint32)((uint32)0U << 26U) /* Framing error */
| (uint32)((uint32)0U << 25U) /* Overrun error */
| (uint32)((uint32)0U << 24U) /* Parity error */
| (uint32)((uint32)1U << 18U)//SET RX DMA ALL
| (uint32)((uint32)1U << 17U)//SET RX DMA
| (uint32)((uint32)1U << 9U) /* Receive */
| (uint32)((uint32)0U << 1U) /* Wakeup */
| (uint32)((uint32)0U << 0U); /* Break detect */
/** - initialize global transfer variables */
g_sciTransfer_t[0U].mode = (uint32)0U << 8U;
g_sciTransfer_t[0U].tx_length = 0U;
g_sciTransfer_t[0U].rx_length = 0U;
/** - Finaly start SCI1 */
sciREG1->GCR1 |= 0x80U;
}
void Init_DMA_Channl0(unsigned char *source_address)
{
struct dmaCTRLPKT DMA_CTRL;
//dmaEnableECC();//使能ECC校验
DMA_CTRL.SADD = (uint32)(&(sciREG1->RD)) + dest_addr_offfset;//初始化源地址
DMA_CTRL.DADD = (uint32)(source_address);//初始化目标地址
DMA_CTRL.FRCNT = 0;
DMA_CTRL.ELCNT = 10;//每10个字节为一个数据包
DMA_CTRL.CHCTRL = 0;//选择通道0
DMA_CTRL.RDSIZE = ACCESS_8_BIT;//接收一个字节为一个最小单位
DMA_CTRL.WRSIZE = ACCESS_8_BIT;//发送一个字节为一个最小单位
DMA_CTRL.TTYPE = FRAME_TRANSFER;//一个请求触发一个帧传送
DMA_CTRL.ADDMODERD = ADDR_FIXED;//源地址模式为固定
DMA_CTRL.ADDMODEWR = ADDR_INC1;//目标地址为增量方式
DMA_CTRL.AUTOINIT = AUTOINIT_OFF;
DMA_CTRL.PORTASGN = PORTB_READ_PORTA_WRITE;//端口分配外设读，内存写
dmaSetCtrlPacket(DMA_CH0, DMA_CTRL);
dmaEnableInterrupt(DMA_CH0,FTC,DMA_INTB);
dmaReqAssign(DMA_CH0,DMA_REQ28);//SCI1接收位于Line28
dmaSetPriority(DMA_CH0,HIGHPRIORITY);
vimChannelMap(33,33, &DMA_Channl0_ISR);
vimEnableInterrupt(33, SYS_FIQ);//快速中断模式
}
vimREG->FIRQPR1 = (uint32)((uint32)SYS_IRQ << 0U)//channel_32
| (uint32)((uint32)SYS_FIQ << 1U)//DMA0配置为快速中断模式
| (uint32)((uint32)SYS_IRQ << 2U)//channel_34
| (uint32)((uint32)SYS_IRQ << 3U)//channel_35
| (uint32)((uint32)SYS_IRQ << 4U)//channel_36
vimREG->REQMASKSET1 = (uint32)((uint32)0U << 0U)
| (uint32)((uint32)1U << 1U)//使能DMA中断
| (uint32)((uint32)0U << 2U)
| (uint32)((uint32)0U << 3U)
| (uint32)((uint32)0U << 4U)
另外,DMA配置的是硬件请求模式，中断向量表也是初始化了的，大家帮我看看会是哪里问题，谢谢
