4.3.1 Controlling Endpoint LEDs

Root Port can initiate the Endpoint LED glowing and walk through.

To issue LED Commands, perform the following steps:

  1. Click Demo Controls tab.
  2. Select any single LED. For example, select LED3, as shown in the following figure.
    Figure 4-5. Single LED Control

    The GUI initiates the LED glow request to the RISC-V processor, which passes this request to the PF_PCIE_0 block. PF_PCIE_0 sends the BAR2 MWr packet to the Endpoint.

    As a result, LED3 on the Endpoint board glows.

  3. Click Start LED ON/OFF Walk button.
    Figure 4-6. LED ON/OFF Walk

The GUI initiates the LED ON/OFF walk request. As a result, LED ON/OFF is executed from the first to the last LED and in the reverse order.