I run the "PCI_Express_in_Qsys_Example_Designs" sample on "Cyclone IV GX starter kit" board.
Running SGDMA successed. i want to know wheather dma is ended by using interrupt. but i can't get the interrupt notification all the times. Environment is: WindowsXP SP3 Jungo WinDriver PCIE send "legacy level-sensitive interrupt" Steps: 1. enable interrupt at 0x0050 register 2. clear interrupt state 0x0040 3. useing WDC_IntEnable register IntHandler function 4. listen in IntHandler function 5. clear 0x0040 interrupt state in intHandler function 6. printf("Got a interrupt\n") in IntHandler function I can't get the interrupt all the times. I also got the same result by using "MAILBOX" testing.