vicentiu

Digilent Staff
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  1. Like
    vicentiu got a reaction from Baig in Cross-Complie Qt Widgets application to adrv9361 sdr board   
    I would look on Analog Device's wiki.
    Also look for how to cross compile QT.
  2. Like
    vicentiu reacted to andylb in LINX on the Raspberry Pi 2, 3 and 4 running Raspbian Buster   
    Hi everyone,
    LINX can be installed on the Raspberry Pi 4.
    The LINX 3.0 Target Manual Install Process (https://www.labviewmakerhub.com/doku.php?id=learn:libraries:linx:misc:target-manual-install) did not work due to changes in the latest version of Raspbian.
    Here is the procedure that I used to install LINX. The procedure also works on the Raspberry Pi 2B, Pi 3A+, Pi 3B and Pi 3B+ running Raspbian Buster.
    1. Setup the Raspberry Pi using the latest Raspbian Buster Image.
    2. Change the default password for the Pi account on the Raspberry Pi.
    3. Setup a WiFi or Ethernet connection from the Raspberry Pi to your router.
    4. Enable SSH on the Raspberry Pi.
    5. SSH into the Raspberry Pi or open a terminal window on the Raspberry Pi desktop.
    6. Check that the Raspberry Pi can access the Internet by entering the command
    ping -c 4 raspberrypi.org
    7. Enter the commands shown in bold below. 
    Note: The text may wrap due to the web browser window size. I recommend copying the text into a text editor to see the original formatting. The commands are in the attached file linx_install_commands.txt

    # Enable i2c and spi
    sudo raspi-config nonint do_i2c 0
    sudo raspi-config nonint do_spi 0
    # Update Raspbian
    sudo apt-get update
    sudo apt-get dist-upgrade -y
    # Install LINX
    sudo sh -c 'echo "deb [trusted=yes] http://feeds.labviewmakerhub.com/debian/ binary/" >> /etc/apt/sources.list'
    sudo apt-get update
    sudo apt-get install -y lvrt-schroot
    # Move the nisysserver.service and labview.service files to the systemctl folder
    sudo mv /etc/systemd/system/multi-user.target.wants/nisysserver.service /lib/systemd/system
    sudo mv /etc/systemd/system/multi-user.target.wants/labview.service /lib/systemd/system
    # link liblinxdevice.so to the Raspberry PI device driver file liblinxdevice_rpi2.so
    sudo schroot -c labview -d /usr/lib -- ln -s  liblinxdevice_rpi2.so liblinxdevice.so
    # Enable the nisysserver.service and labview.service to start on boot
    sudo systemctl enable nisysserver.service
    sudo systemctl enable labview.service
    # Start the nisysserver.service and labview.service
    sudo systemctl start nisysserver.service
    sudo systemctl start labview.service
    You should now be able to connect to the Raspberry Pi from the LabVIEW Project Explorer.
    Cheers,
    Andy.
    linx_install_commands.txt
     
  3. Like
    vicentiu got a reaction from boyangdu in need to replace a component in pynq z1 board   
    https://www.digikey.com/product-detail/en/on-semiconductor/FDV301N/FDV301NCT-ND/458954
    It's Q9 on the last page of the schematic.
    This is for Rev. C.
  4. Like
    vicentiu got a reaction from JColvin in Creating an UART interface on Zybo Z7010   
    Bare metal is a stand alone program that runs on the PS without an operating system and is developed and deployed though Xilinx SDK.
    With Linux, you run Linux on the board and write a regular Linux application using the Linux toolchain.
    I suggest you read up a bit on both and see which you prefer.
  5. Like
    vicentiu got a reaction from elliottal in Petalinux kernel panic error   
    Follow our instructions here especially the section Configure SD rootfs.
  6. Like
    vicentiu got a reaction from JColvin in build error petalinux   
    It looks like you took our petalinux project and added your hdf file to it?
    System-user.dtsi makes references to axi which was present in our Vivado design in the petalinux project, but you don't have axi in your design.
    Please remove all the references it's complaining about.
    Regarding a Petalinux "HOWTO", Xilinx's petalinux documentation in the best reference:
    https://www.xilinx.com/support/documentation/sw_manuals/xilinx2017_4/ug1144-petalinux-tools-reference-guide.pdf
    https://www.xilinx.com/support/documentation/sw_manuals/xilinx2017_4/ug1156-petalinux-tools-workflow-tutorial.pdf
    https://www.xilinx.com/support/documentation/sw_manuals/xilinx2017_4/ug1157-petalinux-tools-command-line-guide.pdf
    You'll find most documentation about system-user.dtsi in the first link, and some in the second.
    Make sure you're looking at the guide for the Petalinux version you are using.
  7. Like
    vicentiu got a reaction from JColvin in No petaLinux projects found in bsp   
    Zedboard was a joint effort between Digilent and Avnet. We developed the board and Avnet took on the platform support and community forums at zedboard.com
    As you found out, Xilinx also provided their own bsp, but we were not part of that effort.
  8. Like
    vicentiu reacted to bogdan.deac in Include files of SDSoC for Zybo-Z7   
    Hi @akhilahmed,
    In the mentioned video tutorial, the leds are controlled using "xgpio.h" library but the application
    is standalone. If you want to use a linux based application you have to use linux drivers for controlling.
    In the current Petalinux build, which is used in SDSoC platform, UIO driver is the best approach.
    Steps:
    1. Vivado project generation:
        - Extract .dsa archive from /path_to_sdsoc_platform/zybo_z7_20/hw/zybo_z7_20.dsa
        - Launch Vivado
        - In Tcl Console: cd /path_to_extracted_dsa/prj
        - In Tcl Console: source rebuild.tcl
        - In this point you should have the vivado project which is the hardware component of SDSoC platform.
            Open Block Design. Change to Address Editor Tab.
            Here you will find the address for axi_gpio_led IP: 0x4122_0000
    2. Petalinux UIO driver:
        - Launch SDx
        - Import zybo-z7-20 SDSoC platform
        - Create a new SDx linux based project using a sample application (e.g. array_zero_copy)
        - Build the project
        - Copy the files from /Dubug/sd_card to SD card
        - Plug the SD card in Zybo Z7. Make sure that the JP5 is set in SD position. Turn on the baord
        - Use your favorite serial terminal to interact with the board (115200, 8 data bits, 2 stop bits, none parity)
        - cd to /sys/class/uio
        - if you run ls you will get something like:
            uio0  uio1  uio2  uio3  uio4  uio5
        - Now you have to iterate through all these directories and to search for the above mentioned axi_gpio_led address:
            0x4122_0000
        - For example: cat uio0/maps/map0/addr will output: 0x41220000, which means that the axi_gpio_led can be
            accessed using linux uio driver through uio0 device.
        - Code:
    #include <stdio.h> #include <stdlib.h> #include <sys/ioctl.h> #include <sys/mman.h> #include <stdint.h> #include <unistd.h> #include <fcntl.h> #define UIO_MEM_SIZE 65536 #define UIO_LED_PATH "/dev/uio0" void UioWrite32(uint8_t *uioMem, unsigned int offset, uint32_t data) { *((uint32_t*) (uioMem+offset)) = data; } uint32_t UioRead32(uint8_t *uioMem, unsigned int offset) { return *((uint32_t*) (uioMem+offset)); } void led_count_down(uint8_t *ledMem) { uint8_t count = 0xF; uint8_t index = 0; for (index = 0; index < 5; index++) { UioWrite32(ledMem, 0, count); count = count >> 1; sleep(1); } } int main() { // Set Leds as output int led_fd = open(UIO_LED_PATH, O_RDWR); uint8_t *ledMem = (uint8_t *) mmap( 0, UIO_MEM_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED, led_fd, (off_t)0); UioWrite32(ledMem, 4, 0x0); // Set all leds as output while(1) { // Start led count-down led_count_down(ledMem); } return 0; }     - Build the project and copy the content of Debug/sd_card on SD sd_card
        - Power on the board and connect to it using a serial terminal
        - run the following commands:
    mount mmcblk0p1 /mnt cd /mnt ./project_name.elf - Result: A countdown should be displayed on leds.