求助！ test_deyisupoort例程中进行Data Sorting式EDMA3传输时出错

Ryan,

下面是我们专家的回复。

I created attached example based on my previous note about EDMA data sorting. The code show how to calculate EDMA paralmeters.

There is automatic verification of sorting correctness of each combination of ACNT, BCNT and CCNT. Also, I passed all tests of total 3840 combinations with ACNT: 1~16, BCNT: 2~16 and CCNT:2~16 on device simulator.

由于在用EDMA进行Data Sorting模式的数据传输时会涉及到两组有关地址偏移的寄存器，这两组寄存器均是16位有符号型，因而在设置ACNT、BCNT、CCNT进行Data Sorting模式数据传输时，数据的地址偏移不能超过寄存器的取值范围。