Developing IPs – AXI-Lite, full, and streaming
We'll take a look at how we can develop an IP through packaging it by defining the interfaces first:
Figure 7.27 – Creating a new AXI4 peripheral
This is a way of creating an IP by creating a wrapper first and then inserting your IP:
Figure 7.28 – Defining the IP
We'll create a pdm_capture module that will have a register to trigger a read. We can then read back the same register to determine whether the read is completed. Data can then be read from a second register.
Figure 7.29 – Default interface definition
The default interface definition is perfect for what we need. You can investigate the options and see that it is very easy to add any of the AXI interfaces we've discussed. If you explore the IP directory, you'll see the following files created under the HDL directory:
