提前对您的支持表示感谢，我还在尝试EDMA来搬运数据，现在我使用region的ESR和ICR可以实现触发，表现为运行的时候，相应的寄存器EDMACC0_CCSTAT 在0x00000110和ox0之间跳转，这说明TR已经传输，并且通道也开始工作，并且IPR = 0x00000001，这是否已经说明EDMA完成了传输的所有的流程，但是我在目标地址没有看到搬运来的数据，后面我将源地址进行修改，都在L2上进行搬运，目的地址还是没有对应的数据，我将代码附在下面，希望得到您的支持~
初始化代码
void COhwDMAInit(void)
{
unsigned int count = 0;
// General EDMA Initial memory protection is unlocked
MPPA0 = 0x000004B3;
MPPAG = 0x000004B3;
/* Step 1: EDMA initialization */
QUEPRI = 0x10; //芯片级设置 ok
QWMTHRA =(16<<8u)|(16 & 0xFF); //ok
/* Clear the Event miss Registers */
EMCR = 0xFFFFFFFF; //事件丢失寄存器清除 No
EMCRH = 0xFFFFFFFF; // NO
QEMCR = 0xFFFFFFFF; //No
/* Clear CCERR register */
CCERRCLR = 0xFFFFFFFF; //No
/* FOR TYPE EDMA*/
/* Enable the DMA (0 - 64) channels in the DRAE and DRAEH register shadow region open */
DRAE1 = 0xFFFFFFFF; //影子区域 如果配置了则需要操作影子区域的寄存器来实现控制 Yes
DRAEH1 =0xFFFFFFFF; //NO
/* Step 2: Programming DMA Channel (and Param set) */
/* All events are one to one mapped with the channels 64个事件 64个通道 事件映射通道 */
DCHMAP0 = 0 <<5; // 0 event mapped with the channel No
DCHMAP1 = 1 <<5; // 1 event mapped with the channel NO
DCHMAP2 = 2 <<5; // 1 event mapped with the channel No
DMAQNUM0=0x0; //全部放在队列0中进行 Yes
// EESR =0x20000000; //29
// COhwDMA_Disable();
return;
}
参数集设置代码 其中up和down数据都在0x008位置内，
void COhwDMA_rxConfig()
{
/*----------------------------------------------------------------------*/
/* Initialize EDMA for Receive Samples for RX0 */
*(volatile uint32_t *) (EVENT1_PARAMS + EDMA_PARAMS_OPT ) = 0x0010000C; //| (1<<12) ; 选择AB传输 防链接 Yes
*(volatile uint32_t *) (EVENT1_PARAMS + EDMA_PARAMS_SRC ) =(uint32_t)&COexEmOutPktBuf.up; // L2的0x yes(uint32_t)COexSqInputPtr
*(volatile uint32_t *) (EVENT1_PARAMS + EDMA_PARAMS_CNT ) = (0x00120000 | 0x00000002); // in bytes BCNT ACNT yes 2A
*(volatile uint32_t *) (EVENT1_PARAMS + EDMA_PARAMS_DST ) = (uint32_t)&COexEmInPktBuf.dn; // Dst Yes (uint32_t)&COexEmInPktBuf.dn;
*(volatile uint32_t *) (EVENT1_PARAMS + EDMA_PARAMS_IDX ) = (0x00020000 |0x00000002); //dstcidx srccidx yes
*(volatile uint32_t *) (EVENT1_PARAMS + EDMA_PARAMS_LNK ) = 0x0000FFFF; // null //Bcntrld yes
*(volatile uint32_t *) (EVENT1_PARAMS + EDMA_PARAMS_CIDX) = 0; //
*(volatile uint32_t *) (EVENT1_PARAMS + EDMA_PARAMS_CCNT) = 0x00000001; // Important!!!
}
采用CPU手动触发
