调用DMA函数如下
EDMA3CCPaRAMEntry Edma3Param[4];
uint32_t Edma3Param_chNum[4];
uint32_t Edma3Param_tccNum[4];
uint32_t Edma3Param_evtQNum[4];
void Edma3Transfer_2(uint8_t num,uint32_t srcaddr,uint32_t dstaddr)
{
Edma3Param_chNum[num] = num;
Edma3Param_tccNum[num] = num;
Edma3Param_evtQNum[num] = num;
Edma3Param[num].srcAddr = srcaddr;
Edma3Param[num].destAddr = dstaddr;
Edma3Param[num].aCnt = 16384;
Edma3Param[num].bCnt = 16;
Edma3Param[num].cCnt = 1;
Edma3Param[num].srcBIdx = 16384;
Edma3Param[num].destBIdx = 16384;
Edma3Param[num].srcCIdx = 0;
Edma3Param[num].destCIdx = 0;
Edma3Param[num].linkAddr = 0xFFFF;
EDMA3Init(0x02740000,Edma3Param_evtQNum[num]);
EDMA3RequestChannel(0x02740000,EDMA3_CHANNEL_TYPE_DMA,Edma3Param_chNum[num],Edma3Param_tccNum[num],Edma3Param_evtQNum[num]);
EDMA3SetPaRAM(0x02740000,Edma3Param_chNum[num],&Edma3Param[num]);
EDMA3EnableTransfer(0x02740000,Edma3Param_chNum[num],EDMA3_TRIG_MODE_MANUAL);
}
主函数中调用如下
HW_WR_REG32(0x02742070,0x00000008); //在每次传输前，手动清下TC标志位
Edma3Transfer_2(3,0x80000000,0x10840000);//进行数据传输
while((HW_RD_REG32(0x02742068) & 0x00000008) == 0x00000000);//等待数据传输完成
请问各位TI工程师，我在调试时DMA只传输了4096个数据，也就是只传输了一帧，这是为什么?
