Read dma data repeatly same

[satchelwu]

Thanks for the lib, but I met the problem.
The situation is below
PL -> PS 64bit data 1s interrupt, the data is natural number, from 1 - 100.
In standalone, the result is ok, but in userspace, the data is sometimes repeatly same, Is there something I missed? hope for help, Thanks.

[gtortone]

Hi, I tested this library on Zynq 7000 and it worked fine... now I move to a different project so I'm not able to reproduce your issue...