ISR is not called after DMA write.

NTDEV
1

Hi All,

I am writing driver for Altera cyclone pcie to fpga and it is based on ref of PLX9x5X device.

I have following queries :

  1. How to check DMA controller is enabled or Not?
  2. How to get user buffer while writing and pass buffer to DMA register?
  3. After writing why ISR is not getting called.

Note : I don’t have datasheet where I can map registers.

Help Appreciated.

Regards,
Kishan