DG0889: PolarFire 12G-SDI Design Demo Guide

Clocking Structure

The clocks generated from the onboard oscillator are used in the demo design. Using the 27 MHz reference frequency from the onboard oscillator, PF_CCC_C0 generates a 40 MHz clock for the XCVR_ERM_C1 (SDI_RX), and a 50 MHz clock for the Mi-V processor subsystem and DDR Controller. Using the reference frequency of 200 MHz (DDR System clock), PF_CCC_C1 generates a 148.5 MHz clock for XCVR_ERM_C0 (HDMI) and Display Controller.

Using the 148.5 MHz onboard oscillator, PF_XCVR_REF_CLK generates the following clocks:

• 148.5 MHz clock (LANE0_TX_CLK_G) for the SDI User Logic.
• 148.5 MHz clock (LANE0_RX_CLK_R) for the DDR Write Logic.

Using the reference frequency of 150 MHz, PF_CCC generates a 120 MHz clock for MIPI_RX_DECODER. Figure 3, page 5 shows the clocking structure of the design.

Reset Structure

The Mi-V processor subsystem, XCVR, UART, SDI, ISP, and all other blocks are reset when the following signals are asserted:

• DEVICE_INIT_DONE from PF_INIT_MONITOR
• DDR_CTRL_RDY from DDR Controller
• DDR PLL LOCK
• PLL_LOCK of PF_CCC_CO

The reset structure is shown in Figure 4, page 6.

Setting Up the Hardware

Setting up the hardware involves interfacing the HD-SDI daughter board rev 1 card with the PolarFire Video Kit along with the HDMI monitor and verifying the jumper settings.

Follow these steps:

1. Connect the J1 connector of the dual camera sensor module to J38 interface of the video kit.
2. Connect the Full HD HDMI monitor to J2 (HDMI 1.4 TX port) of the video kit using the HDMI cable.
3. Connect the HDMI monitor to J1 (HDMI 2.0 TX port) of the video kit (for 4k video output).
4. Connect the host PC and the video kit through J12 of the video kit using the USB mini cable.
5. Connect the power supply cable to J20 of the video kit.
6. Connect the 3_J4 of HD-SDI daughter board rev1 card to J14 of the FMC connector of video kit.
7. On HDSDI DAUGHTER BOARD connect HD_TX(3_J1) to HD_RX(3_J2) with coaxial BNC to BNC male to male connector.
8. Ensure that the following jumper settings are set on the video kit.
9. Power-up the HDMI monitor.
10. Power-up the board using the SW4 slide switch.

Programming the PolarFire Device

This chapter describes how to program the PolarFire device with the job file using Flashpro Express. The job file is available at the following design files folder location:

<$Download_Directory>\mpf_dg0889_liberosoc_jb

Follow these steps:

1. On the host PC, start the FlashPro Express software from its installation directory.
2. Select New or New Job Project from FlashPro Express Job from Project menu to create a new job project, as shown in the following figure.

3. Enter the following in the New Job Project from FlashPro Express Job dialog box:

• Programming job file: Click Browse and navigate to the location where the job file is located and select the file. The default location is: <$Download_Directory>\mpf_dg0889_liberosoc_jb
• FlashPro Express job project location: Select Browse and navigate to the location where you want to save the project.

4. Click OK. The required programming file is selected and ready to be programmed in the device.
5. The FlashPro Express window appears as shown in Figure 4, page 7. Confirm that a programmer number appears in the Programmer field. If it does not, confirm the board connections and click Refresh/Rescan Programmers.

6. Click RUN to program the device. When the device is programmed successfully, a RUN PASSED status is displayed as shown in Figure 5, page 7. See Running the Demo, page 8.

7. Close FlashPro Express (Project > Exit).

The PolarFire device and SPI Flash are programmed. Power cycle the board using switch SW4. After power cycling, the HDMI monitor displays the live video from camera.

Running the Demo

The demo features receiving the MIPI Rx data from the IMX334 camera with 4K resolution at 30 frames per second (fps). The frames from camera are converted to YCbCr 422 format and stored in DDR. The 12G SDI Tx IP transmits the DDR video frames using PolarFire XCVR. The 12G SDI Rx IP receives the SDI video and stores the frames in DDR. The HDMI IP reads the frame buffer written by SDI Rx IP and sends out to HDMI display using XCVR. The image processing IPs are enabled on the display side of the video pipeline.

In the demo design, two display controllers are used to provide two video outputs:

• Full HD output (1920x1080 60Hz resolution)
• 4K output (3840x2160 30Hz resolution)

The Full HD output supports panning and Image enhancements such as contrast, brightness and color balance. The 4K output supports Image enhancements. The GUI application for image enhancements is common for both the video outputs.

Running the demo involves verifying the imaging and video settings using the Video_Control GUI and then observing the result on the HDMI monitor.

To use the demo GUI:

1. Start the Video_Control GUI from the installation directory. The GUI is displayed as shown in the following figure.

2. Select the second largest COM port on the GUI and select the Connect option.

3. The Connect button turns green indicating a successful connection.

4. Use the Contrast and Brightness sliders to adjust the contrast and brightness and observe the change on the HDMI monitor. The sliders are highlighted in the following figure.

5. Similarly, adjust the color balance of the image using the color balance sliders.
6. In the main video control GUI window, select the Panning option to view a particular area of the main or the PIP image within a 4K image.
7. In the Panning Menu, use Image Select to select the image to be panned (Main image or PIP image). Any area of the 4K camera feed can be viewed by dragging the pink box horizontally or vertically. The Reset option sets the view of the Main image and PIP image to its default center position.

8. Close the Panning Menu to return to the main GUI.
9. Close the GUI to exit from the demo.

Note: The following features in the GUI are not supported in the current SDI design:

• Alpha
• Edge
• PIP

This concludes the demo.