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Ana-Maria Balas

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Posts posted by Ana-Maria Balas

    Cannot Boot Genesys-ZU3 in QEMU

    in Embedded Linux

    Posted

    We did not try the image with QEMU. I think it is a problem with the emulator. In the early stage of booting, it cannot determine the necessary resources needed by u-boot, because the QEMU is built for Xilinx QEMU device trees to generate a machine model. Xilinx recommends to use their prebuilt image, which works with QEMU or I think you can integrate the 3eg device tree into QEMU (see here https://xilinx-wiki.atlassian.net/wiki/spaces/A/pages/822312999/Building+and+Running+QEMU+from+Source+Code#BuildingandRunningQEMUfromSourceCode-Buildingdevicetreebinaries%3A)

    You should use their prebuilt image to create compatible Petalinux drivers/applications if it is something not specific to the board.

    https://xilinx-wiki.atlassian.net/wiki/spaces/A/pages/818708631/Chapter+2+-+Building+and+Running+QEMU

    How to control voltage output on ZMOD DAC1411 Using Digilent IP ZMOD?

    in FPGA

    Posted · Edited by Ana-Maria Balas

    Hello @afif.ramadhan,

    I think the parameters are already computed using decutil. See below Quote and example from the IP documentation pdf:

    Quote

    Decutil reports the factory raw calibration parameters and processed calibration parameters as shown in
    Figure 3.

    image.png.650e8e137bb0bbeeb995f27fa8d41ef0.png

     

    You only have to take the processed calibration values using decutil and feed them to the Zmod AWG controller IP. You can load the values using the IP interface or using the external calibration signals through Constant IP blocks.

    Just to clarify something, through AXI Stream only the sample DATA is sent, not the calibration data.

     

    Stopping ZMOD DAC

    in FPGA

    Posted · Edited by Ana-Maria Balas

    In boot partition please set in uEnv: 

    #Zmod configuratio to use: adc, dac, adc-dac
zmod=dac

    Also go to Petalinux <repo-location>/images/linux/ and copy somewhere the additional files: system.bit and system.dtb then rename them to zm-dac.bit and zm-dac.dtb and then copy these files to boot partition (replace the existing ones).

    So you have to use all 4 files from <repo-location>/images/linux/:

    BOOT.BIN

    image.ub

    zm-dac.bit

    zm-dac.dtb

    Stopping ZMOD DAC

    in FPGA

    Posted

    1 hour ago, NithinA said:

    @Ana-Maria Balas I was using the DAC demo for Linux. I tried executing the baremetal demo using the .hdf file you provided. The DAC is stopping in the baremetal project, but not in the Linux project.

    This is happening because the Linux project is using the old hardware. You have to update the Petalinux project with the new hardware I provided here, build it, then you can use the Linux demo application from Xilinx SDK.

    Follow the steps (see each title below) from readme https://github.com/Digilent/Eclypse-Z7-OS/tree/zmod_dac/master#readme

    1. Setup (You have to install Petalinux 2019.1 see Installation Requirements to install all the necessary packages from the table and Run PetaLinux Tools Installer)

    2. Source the Petalinux Tools

    3. Download the Petalinux Project

    4. Next Steps (import the new hardware design provided here into the project to build upon)

    5. Build the Petalinux Project

    6. I believe you are using our prepared image with Debian 10 rootfs, in this case you only need to replace the BOOT.BIN and image.ub in the boot partition of the SD card with the newly built files located in <repo-location>/images/linux/.

     

     

    Stopping ZMOD DAC

    in FPGA

    Posted

    On 10/26/2021 at 9:41 AM, NithinA said:

    @Ana-Maria Balas I tried both the hdf file and the tcl scripts. The DAC is still not turning off. Should I update anything in the ZMOD library as well?

     

    In the Eclypse-SW project, did you right click design_1_wrapper_hw_platform_0 -> Change Hardware Platform Specification -> then selected the downloaded design_1_wrapper.hdf from above?

    image.thumb.png.ea69b2d610f1228224b616326e1568bf.png

    Then regenerate the BSP sources:

    image.thumb.png.14cd424b7215e3f11863b3ae2347f2c1.png

    Stopping ZMOD DAC

    in FPGA

    Posted

    Hello @NithinA,

    I added the changes to the AXI_Zmod_DAC1411 IP on branch feature/zmod-support in vivado-library repository.

    https://github.com/Digilent/vivado-library/tree/feature/zmod-support

    If you want to update the hardware project with upgraded IP, you will have to:

    1. git checkout the hw for the zmod_dac demo

    2. cd into repo/vivado-library

    3. git checkout feature/zmod-support with the latest changes

    4. go to Vivado tcl console and create the hw project: 

    set argv ""; source digilent-vivado-scripts/digilent-vivado-checkout.tcl

    5. in Reports/Report IP Status verify that /ZmodDAC_0/AXI_ZmodDAC1411_v1_0_0 has the Rev.23 (latest revision)

    6. generate bitstream

    7. update the sw project with new bitstream

    In case you don't want to follow the above steps for creating the hardware project, here is the new bitstream file for ZmodDAC1411_Demodesign_1_wrapper.hdf.

     

    Zybo z7 usb uart no longer recognized by pc

    in Digilent Microcontroller Boards (Retired)

    Posted · Edited by Ana-Maria Balas

    When you create a HW project in Vivado, you have to configure the Zynq. Since you are using a Petalinux build, the UART channel is enabled for sure in Zynq.

    However I've built 2 demos to test the UART, because I don't know which Zybo Z7 you have. These are the files, select the one for you board:  

    Zybo_Z7_10.bin

    Zybo_Z7_20.bin

    I'm using:

    image.png.dcb8f7141bd379ca83750b4999da8dde.png

     

    I know for sure that these 2 demos are working. Copy the .bin file to an empty SD card, rename the file to BOOT.bin, JP5 jumper set to SD on the board, wait for the DONE LED to become green. Press PS-SRST button to show the message multiple times on the serial console.

    Let me know what you see

     

    Zybo z7 usb uart no longer recognized by pc

    in Digilent Microcontroller Boards (Retired)

    Posted

    So let me understand, you can program the board via JTAG using the micro USB cable but you cannot access the serial port.

    1. With the Virtual machine, you have to be careful to allow the USB devices to be connected to your VM. If the USB device is connected to the VM, then you cannot access it from Windows and if the USB device is connected to Windows, then you cannot access it from VM, in your case from Linux and that is why it is not detected.

    2. Did you enable the UART MIO channel in Zynq ?

    PMOD NIC100

    in FPGA

    Posted

    Hello @elAmericano,

    Here is the github location of the IP library. As you can see we currently don't have an IP for this Pmod.

    However the Pmod is using SPI protocol. You could easily add an Axi Quad SPI IP and then constrain the outputs, the in SDK you can adapt the code from SPI Ethernet ENC24J600 Library which is made for PIC and use it.

    As you can see SPI Ethernet ENC24J600 Library supports ENC424J600 module, which is the module used by Pmod NIC100.

    For SPI communication there are several Pmods that have SPI drivers ( see git location ) which you can take as an example.

    It's a bit of work, but maybe it could be a great opportunity for you to learn something new.

    Best regards,

    Ana-Maria

     

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