EHPI port read wrong data

Yu,

It is true that CPU can access DARAM space twice per cycle. But I am afraid that I do not understand your first question.  Could you please be more specific?

Regards,

Peter 

We program a small programer.Some instruction which will read or write one DRAM block twice per cycle such as “MAC” were used.When this program running,we try

 to read data from same DRAM block through the EHPI port.But we get the wrong data (0xffff) some time.The wrong data'schance is about 1/20.

OK, I understand. Please do not access the same memory block at the same time. Try to access different memory block. 

Regards,

Peter Chung

We have tested the other block when program is running.Not found this error,the data is right.