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Found 1 result

  1. Finally working! Brief description: On right monitor is ssh session from my devel PC to Zyboz7-20 where I start Qt applications (framebuffer and sysinfo on attached picture). Front monitor is connected to ZyboZ7-20 HDMI output port. Monitor resolution is SXGA (1280x1024@60fps). FPGA: - Build with Vivado 2016.4 - Data path for HDMI output: /dev/fb0 DDR image buffer --> Zynq AXI HP port --> AXI Protocol Converter IP (AXI3 to AXI4) --> VDMA IP (mm2s only) --> AXI4 Stream to Video IP --> Digilent RGB to DVI IP --> HDMI connector Video control signals are from Video Timing Controller IP (1280x1024p, Pixel clock is 108MHz). On SD card: - Boot image containing: FSBL, U-boot (Xilinx git tag xilinx-v2017.3), LX 4.6 kernel (configured and build from Xilinx git tag xilinx-v2016.4) and Buildroot-2017.08.1 - Modified Simple FrameBuffer driver. - Xilinx DMA driver. - My custom driver to control FPGA modules (VTC, Xilinx Performance monitor and some others I have in design). - Cross compiled Qt-4.8.6 examples (analogclock, framebuffer) and Qwt-6.1.3 examples (sysinfo, cpuplot). TODOs: - Simple FrameBuffer driver does not starts Xilinx DMA driver transfers, so I have to configure VDMA IP registers manually. But this is good enough for my first run and proof of concept. I will switch to and continue with DRM device driver. - Inputs (mouse and keyboard) to control Qt application.