The DMA Subsystem for PCIe can be configured as AXI4 Memory Mapped (AXI-MM) or AXI4-Stream (AXI-ST) interface. The simulation test case reads configuration register to determine if a AXI4 Memory Mapped or AXI4-Stream configuration. The test case, based on the AXI settings, performs simulation for either configuration.
| Test Case Name | Description |
|---|---|
| Dma_test0 | AXI4 Memory Mapped interface simulation. Reads data from host memory and writes to block RAM (H2C). Then, reads data from block RAM and write to host memory (C2H). The test case at the end compares data for correctness. |
| Dma_stream0 | AXI4-Stream interface simulation. Reads data from host memory and sends to AXI4-Stream user interface (H2C), and the data is looped back to host memory (C2H). |