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Showing content with the highest reputation on 01/08/16 in all areas

  1. 1 point
    Alejandro Wolf

    Real time Linux on Zybo

    I have a tutorial to build the kernel from scratch, but It's in spanish. With the help of google translate and some carefull reading, I believe that you can make it work ignoring all the OpenCV stuff and using your linux distribution instead of arch: http://blog.zembia.cl/instalando-linux-en-la-tarjeta-zybo/ If there are enough interested people, I could translate it. Reading your post I realized that maybe it's hangs up because is triying to boot Ramdisk. If you compiled u-boot by youtself edit the zynq_zybo.h in /include/configs/. Change this: "sdboot=if mmcinfo; then " \ "run uenvboot; " \ "echo Copying Linux from SD to RAM fs... && " \ "fatload mmc 0 0x3000000 ${kernel_image} && " \ "fatload mmc 0 0x2A00000 ${devicetree_image} && " \ "fatload mmc 0 0x2000000 ${ramdisk_image} && " \ "bootm 0x3000000 0x2000000 0x2A00000; " \ "fi\0" \to this: "sdboot=if mmcinfo; then " \ "run uenvboot; " \ "echo Copying Linux from SD to RAM fs... && " \ "fatload mmc 0 0x3000000 ${kernel_image} && " \ "fatload mmc 0 0x2A00000 ${devicetree_image} && " \ "bootm 0x3000000 - 0x2A00000; " \ "fi\0" \then compile u-boot and try again. Best regards
  2. 1 point
    Alejandro Wolf

    Using Open CV with Zybo board

    That actually was just a demo I did for some students. The end result can be appreciated here. In the end I used a HDMI input instead of the camera because of the faster frame rate. I tested it using a video from my personal computer or a GoPro camera. I have a tutorial for running OpenCV on the Zybo board from scratch, but it is in spanish and does not cover the hdmi capture. I'm not quite confortable sharing my proyect because its messy and I kind of hacked the AXI HP ports to capture the HDMI input and output the video with no Linux graphical interface. I'm not using DMA at all and yet I'm transfering full video frames from the FPGA to the processor at enought speed to capture [email protected] video. I can clean up the proyect for the HDMI capture/VGA output and translate the tutorial, but it would take me a while. best regards
  3. 1 point

    Arty Board File

    Hi , Try these ones : https://reference.digilentinc.com/vivado:boardfilesold This should get you an Arty board file under board_parts/artix7/arty/C.0 although there is still a problem with the Memory interface generator . The arty folder contains a project file 'mig.prj' which I assume should be the settings for the MIG for Arty but there it seems to be pointing to the wrong part.. or the board_part.xml is. board_part.xml : xc7a35ticsg324-1L mig.prj : xc7a15ti-csg324/-1L cheers, RB