RTL Studio Open IDE

3.2 · AXI CLASS

Write data channel: WSTRB and WLAST for write bursts

Manage WSTRB, a write beat counter, and WLAST to terminate write bursts.

Video coming soon. This lesson page stays at the same URL when the lecture publishes.

What you practice

Write data channel: WSTRB and WLAST for write bursts (3.2). Manage WSTRB, a write beat counter, and WLAST to terminate write bursts. It is in Write Data Channel — Part 3 · AXI4 Full RTL Design of the AXI Masterclass. Burst, outstanding, and a BRAM memory bridge.

AXI only counts when the handshake simulates. RTL Studio is the Verilog and SystemVerilog IDE where you edit the RTL and prove each beat on a VCD.

Run it in the Verilog IDE

  1. Open the lesson in the IDE and find the valid/ready or AXI channel ports in the editor.
  2. Simulate with Verilator. Confirm the beat on the VCD, not only in the transcript.
  3. Check that data moves only on the beats this lesson describes, and that backpressure holds the transfer.
  4. Synthesize the RTL master, slave, or buffer with Yosys. Leave the UVM bench out of synthesis.

The lesson is done when the simulation matches Write data channel: WSTRB and WLAST for write bursts. Change the source, run the Verilog simulator again, and read the waveform without leaving the IDE. Simulation guide · Yosys guide.

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