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  1. 3 points
    Ciprian

    Digital Twin

    Hi @Kris Persyn, It depends on how you manage your resources, driving immersive visuals on a HDMI display can be done in multiple ways at different resolutions, some are PL taxing others are DDR taxing; you could generate entire frame buffers in PL or PS or you could find a optimal algorithm to change just the previous frame or you could allocate a high number of frame buffers and then run them in a loop. It also depends on how math lab synthesizes the IP you will need to add to your design. If you design your project properly and don't aim for a resolution higher more 720p( I'm being conservative, we managed to drive the HDMI at 1080p with processing filters without a problem) I think it should be enough for what you want to do, resource wise. My suggestion, download and install Vivado, download and install the board files, create and implement your project look at the resource consumption and then buy a board. - Ciprian
  2. 3 points
    In your constraint file, the ddc pins have lowercase "ddc_scl_io" and "ddc_sda_io". Your block design has the port in uppercase "DDC". The case must match. Try editing your constraint file to have "DDC_scl_io" and "DDC_sda_io".
  3. 3 points
    jpeyron

    pmod wifi

    Hi @harika, I believe the HTML web page error is related to the materials on the SD card. 1) Please attach a screen shot of the contents of the Sd card you are using. 2) Please follow the YouTube video here from about 6 minutes and 28 seconds on for how to set up the HTTP server project. Make sure to update the login an password for the router/modem you are using. thank you, Jon
  4. 2 points
    JColvin

    Read from MicroSD in HDL, Write on PC

    Hi @dcc, I'm not certain how you are verifying that the HDL is writing to and then reading back from the SD card in a normal formatting style, but in general FAT32 is a widely used format for SD cards that has existing material for it. I am uncertain why you are using a special tool to write to the SD card though; from what I can tell the tool is Windows compatible, so why not just use the Notepad program which comes with Windows and save a .txt file with the data you are interested in reading to the SD card or just using Windows Explorer (the file manager) to move the file of interest onto the SD card? If you do have a header in your file, you will need to take account for that, though I do not know what you mean by "random file" in this case. Thanks, JColvin
  5. 2 points
    SeanS

    Genesys 2 DDR Constraints

    Hi JColvin, I am definitely not using ISE. I think JPeyron had it correctly. I didn't have my board.Repopaths variable set and so the project wasn't finding the board files. Once I set this variable as suggested, the pin mapping and IO types were auto populated as expected. Kudos, Sean
  6. 2 points
    @jpeyron @D@n I fixed the bug in my SPI Flash controller design. Now I can read from Flash memory.
  7. 2 points
    Hi @Blake, I was struggling with the same problem. In Adam's project is mistake which result is an FMC-HDMI module is not recognizable by other devices. The reason for that is not sending EDID at all. The cause of this situation is wrong initialized EDID map. In Adams example EDID is initialized by: but the correct way is: the body of iic_write2 is from LK example: By the way, in LucasKandle example initialization is done in same way as in Adam's example so is the reason why it not worked in your case. I hope it will helps. If you want I will post my working code for a ZedBoard with FMC-HDMI when I clean it because at the moment is kind of messy.
  8. 2 points
    Hi, there's a lot of new information in your last post. You aren't just "trying" FPGA but have a professional interest in Zynq. Don't let anybody scare you it's "difficult" and go for it, possibly with the cheapest board, no tutorials and low expectations like, blinking LEDs for quite a while. Given the price tag of any industrial training coarse, an FPGA board for self-study is a no-brainer. Maybe save some money to buy your FPGA engineer a coffee once a week, with some questions in mind
  9. 2 points
    True. Zygot believes that making you work for knowledge is kinder than giving you solutions that can be used to mindlessly resolve your problem of the hour.... it's just a different philosophical bent...
  10. 2 points
    kwilber

    Pmod DA3 clocking

    It looks to me like DA3_WriteSpi() was adapted from code for a different device and has vestigial and incorrect code. Reviewing the AD5541A datasheet, several things stand out There is only a single register in the chip so there is no need for the u8 reg parameter. There is no need for a"config byte" to be sent before the data. The transfer is always 16 bits so there is no need to allow for arbitrary length data quoting from the datasheet "Input data is framed by the chip select input, CS. After a high-to-low transition on CS, data is shifted synchronously and latched into the serial input register on the rising edge of the serial clock, SCLK. After 16 data bits have been loaded into the serial input register, a low-to-high transition on CS transfers the contents of the shift register to the DAC register if LDAC is held low". Reviewing the PmodDA3 schematic, the ~LDAC signal is softly pulled to ground with a 10K resistor. So there is no need to explicitly toggle ~LDAC. What all this means is DA3_WriteSpi could be simplified to something like void DA3_WriteSpi(PmodDA3 *InstancePtr, u16 wData) { u8 bytearray[2]; bytearray[0] = ((wData & 0xFF00) >> 8); bytearray[1] = (wData & 0xFF); XSpi_Transfer(&InstancePtr->DA3Spi, bytearray, 0, sizeof(bytearray)); } You would then call it passing in just the instance pointer and the value you want to write to the DAC. u16 dacValue = 1234; DA3_WriteSpi(&myDevice, dacValue); I do not have a PmodDA3 on my bench so I cannot verify the function works, You can give it a try and let us know how it goes.
  11. 2 points
    kwilber

    Pmod DA3 clocking

    It seems to me the AXI Quad SPI block is sending address + data. Looking at the .xci file again, I see C_SPI_MEM_ADDR_BITS set to 24 bits. So 24 bits of address and 16 bits of data would yield 40 bits.
  12. 2 points
    kwilber

    Pmod DA3 Pinout

    That is one of the conventions commonly used to indicate an Active Low signal. So in this case, you pull Chip Select low when you want to access the chip. After you have toggled in all the data bits on the DIN line, you pull LDAC low. The Pmod DA3 reference manual has a link to the D/A chip's datasheet. That is the best first place to look for information on the device's function. The required signal timings are on page 5 of the datasheet.
  13. 2 points
    @Ahmed Alfadhel If you installed Vivado then you also installed the Xilinx Document Navigator. If you are serious about developing with FPGA devices you need to know how to find and access the plethora of documents that your vendor provides in order to use their devices properly. Check the box for 7 Series devices to see the list of reference manuals, User's Guides, Datasheets etc. From there you can add all relevant documents to your search and keep up to date. Do the same for ISE or Vivado tools. This is where everyone needs to start their Xilinx FPGA journey. Xilinx makes it easier than other FPGA vendors to obtain knowledge.
  14. 2 points
    The hot plug detect should be on the rx side. The source will see that and will then initiate the DDC conversation.
  15. 2 points
    The answer is yes, that fixed it! Thank you so much! The odd thing is that I tried this in one of my attempts and put it back to QSPI as it didnt work. Regardless thank you so very much for walking me through this. all looks good now:
  16. 2 points
    So the picture that you post of a (relatively) gigantic scope probe clip resting on a fairly small FPGA device in a BGA package is a way of making a statement. It might also be viewed as a picture that might be making a statement to you. I routinely use an LED to verify that my design is at least being clocked properly. Make a 32-bit counter and connect bit 26 or so to an obuf driving one of the boards LEDs. You can get an approximation of a 1 blink/s LED rate with a little math depending on the clock rate and the chosen counter bit. For me the clock rate of interest isn't the external clock coming into the FPGA but some clock output of an MMCM or PLL that I'm using for my design. If the LED is blinking then I at least know that something is alive in my design. You've got to be careful with those large scope probe grabbers around fine pitch components. I prefer to bring out a few debug versions of particular signals of interest to a PMOD and connect that to a scope probe ( the PMOD has DGND pin(s) ). You still have to exercise some caution with the ground clip on your scope probe as it's easy to short an adjacent pin to ground and ruin your day. It would be very useful if Digilent provided GND test points, or at least holes for test points, in an area of their boards for scope probing. The safest thing might be to stick a pin into the GND receptacle of one PMOD connector and probe on signals in another. Insulation stripped off suitably sized wires can help as well to keep ground clips from accidents. It's really easy to have that ground clip pop off whatever it's connect to and bounce around on exposed parts of your board; nothing good will come of that. I limit scope probing to when it's necessary. There are usually safer ways to evaluate signals in your FPGA design. Lastly, you should understand that its very easy to get a false impression of what a signal looks like, especially with normal scope probe ground clips. Think Heisenberg.
  17. 2 points
    Ciprian

    Hdmi out from zybo

    Try adding this: &i2c0 { clock-frequency = <100000>; status = "okay"; }; Here: <petalinux_project>/project-spec/meta-user/recipes-bsp/device-tree/files/system-user.dtsi -Ciprian
  18. 2 points
    xc6lx45

    Cmod S6 - Multilayer?

    You might go to Texas Instruments' site (or AD or both) and find documentation for some $500 high frequency ADC or DAC eval board as example to study.. There's nothing wrong with copper planes, generally. Free-standing structures (such as non-connected filler polygons) can be bad, if they resonate. So are loops if the driving wire spans an area together with the GND return wire (for which the ground plane is an obvious solution). The worst resonators have high quality factor meaning loose coupling meaning it can be surprising how the energy managed to couple in. There's no such thing as too many ground vias... Note, your ground plane can do very interesting things in combination with the metal box it's in (resonant cavity) but that's a different story.
  19. 2 points
    The warning you pasted is benign and simply means there are no ILAs present in your design. The real issue could be your clock. You should review the datasheet for the dvi2rgb.Table 1 in section 5 specifies RefClk is supposed to be 200Mhz. Also, your constraint should follow the recommendation in section 6.1 for a 720p design. Finally, @elodg gives some great troubleshooting information in this thread.
  20. 2 points
    And.... I have this sense that if you keep describing what you did you will answer your own question. I don't have enough information yet to help. [I confess that I haven't bothered to read through your code] Verbalizing problems, if you go into enough detail, is often a fairly reliably way to resolve them. Sometimes it helps to have someone throw in a good question or two.
  21. 2 points
    You are not wrong - but for that device ID the tooling will not let you use all the LUTs present on the silicon die. It is a somewhat artificial restriction, and might have some implications for the power and thermal properties of the package (e.g. a smaller package may not be able to dissipate the heat).
  22. 2 points
    Hi, Abdul, Here are my notes/recommendations: 1. Open your block diagram in Vivado where you created BRAM configuration and then check the address editor. You should see whether the BRAM address was assigned. If you find assigned see axi_bram_ctrl_0 OffsetAdress and the Range then the BRAM was created and mapped to the memory. 2. Writing and reading from BRAM requires a clock signal. Check Xilinx templates for BRAM which you can access inside the Vivado. I am not sure that the code you've used to write into BRAM does anything. 3. You don't use an absolute address in your HDL when BRAM created in Vivado. Vivado maps the address 0x4000_0000 to 0. So you can start from the address 0 and it will be the lowest address of the BRAM. If your don't use Vivado then you will need to define your block in HDL and include addresses, and many other parameters. 4. The C-code in SDK should use BRAM address from the file parameters.h. You just need to use XPAR_AXI_BRAM_CTRL_0_S_AXI_BASEADDR as the begining of the BRAM address space. 5. You can treat BRAM as RAM meaning that all read/write operators are the same. For example you can copy BRAM content into the RAM: for(i = 0 ; i < BRAM_SIZE ; i++) *(destination + i) = *(source + i); where source = XPAR_AXI_BRAM_CTRL_0_S_AXI_BASEADDR Disclaimer: always read documentation, whatever you find on Internet might not be correct. Good luck!
  23. 2 points
    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.
  24. 2 points
    Hi @Ben B, Regarding your question on using Zybo Z7-20 to capture HDMI signals. It is possible and using UIO is also an option, but because we are using the VDMA to get the Video signal it's better to use a DMA driver. Unfortunately Xilinx does not provide a complete DMA driver for any of their DMA IPs, therefore I have been using this DMA driver which includes the VDMA functionality as well. To make things as easy as possible, I generated a example project for you with the VDMA used to capture video streams and OpenCV functions to write a *.bmp file. What you need to do in order to get it working is: 1. load the HDMI2BMP.elf to /home/root on your rootfs portion of your board 2. after the board boots you need to load the axi_dma_driver root@Zybo-Z7-20:~# insmod /lib/modules/4.9.0-xilinx-v2017.4/extra/xilinx-axidma.ko 3. run the HDMI2BMP.elf This will generate a test.bmp in /home/root with the captured image. The source file for the app is in the SDK folder. Changes which I had to do to the original petalinux project are: - create a new module in petalinux petalinux-create -t modules -n xilinx-axidma --enable - copy the necessary file to Petalinux-Zybo-Z7-20/Zybo-Z7-20/project-spec/meta-user/recipes-modules/xilinx-axidma/files and update the MAKE file and the xilinx-axidma.bb - update the system-user.dtsi in /Petalinux-Zybo-Z7-20/Zybo-Z7-20/project-spec/meta-user/recipes-bsp/device-tree/files - write the demo program Hope this helps. -Ciprian Zybo-Z7-20-HDMI-RX_peta.zip
  25. 2 points
    >> having about 60uF of ceramic decoupling goodness Maybe it's even more a question of ESR than capacitance. Ceramic if money doesn't matter (e.g. Mouser: 22 µF: €4..6). The typical solution are staggered capacitors, with a quick look at the datasheet for the self resonance frequency in the impedance curve. I do this for RF (try to get a quality short at n GHz...) but if I had to make a blind guess, I'd use two orders of magnitude, e.g. 10 µ, 100n, 1n and with a nervous glance at my Voodoo doll, 10p. The CMOD A7 is reported quite frequently (possibly because it's one of the most attractive boards) but I can tell that I've run into the same issues with FTDI's reference module for the 2232H. The chip just shuts down if it doesn't like what it sees on VCC. It took a long Friday night in the lab to prove without doubt that our system is sensitive to USB cables. We changed the design and shipped with non-detachable cable. Zero issues so far.
  26. 2 points
    HI @yottabyte, I realize (based on the time stamps) that you figured out the answer to your question before you got a response, but do you mind posting your original question and what you found out so any future users with a similar question would be able to see the answer you (and xc6lx45) found out? Thanks, JColvin
  27. 2 points
    xc6lx45

    Voice-activited

    >> Is that solution Will run? I suspect you mean crosscorrelation, and no, it will most likely not work. Maybe you'll save yourself much pain if you prototype the algorithm first in software. It doesn't need to be real time. E.g. get freeware Octave and use the audioread() function. Be sure to use two independent recordings for reference and simulated microphone input.
  28. 2 points
    You're welcome! I am glad it is working. Yes, this thread should help others trying to run the Pcam 5C demo on Zybo Z7. Best Regards, Ionut.
  29. 2 points
    Flux

    VGA Pmod Tutorials

    The VGA tutorials have been updated with support for the Basys 3 and Nexys Video as well as Arty: https://timetoexplore.net/blog/arty-fpga-vga-verilog-01 I'm currently adding SVGA (800x600) support as well as working on more advanced effects. All the Verilog is available under the MIT license on GitHub: github.com/WillGreen/timetoexplore I look forward to sharing more projects with the community soon. Will
  30. 2 points
    elodg

    Nexys Video "Feet"

    https://www.fastenal.com/products/details/0146057 https://www.fastenal.com/products/details/28783
  31. 2 points
    Ciprian

    Zynq book - tutorial 5 Zybo Z7

    Hi @n3wbie, Th working project is attached. what you have to take in to account when using this audio codecs with Digilent products is that you need to configure the codec (using I2C) as well as receive the samples using I2S IP core. Basically one is for the control of the codec and the other one is to receive the samples. I have written a small driver for both the I2S core and the I2C SSM2603 which is in the source files of the SDK project (in the sdk folder) which configures the registers for the codec and I2S IP core; the documentation for the codec can be found here. The IP core has not yet been documented which is the main reason we have not added it to the Digilent vivado-ip library, but it needs a 100MHz input for it to be able to synthesize the 12.228 MHz MCLK and the subsequent clocks for the I2S protocol. The demo project reads the buttons and based on the ones you press it will: BTN0 - Record 1s BTN1 - Set Mic input BTN2 - Set Line In input BTN3 - Playback 1s The project is not really optimized so it uses a variable "RecSamples", allocated to the stack memory which holds the recorded samples(48000 samples representing 1s at a 48KHz sampling rate) and it is also used fro play back, so don't press play back before record. The rest should be easily traceable from the comments in the driver and the main source code. If you have any other questions feel fr to ask. Ciprian ZyboZ7Audio.zip
  32. 2 points
    JColvin

    Arty A7 flash chip

    Hi @D@n, I believe the new part that is used in the Arty A7 boards (and other A7 boards) is now a Spansion S25FL128SAGMF100; based on old schematics, I believe this was added in Rev D of the Arty A7 (dated August 2017), though I do not know when that particular Rev was then released (or if it even was released) to the public. I confirmed that the Arty S7 also uses this part and I wouldn't be surprised if most of our other Artix 7 based boards use it now as well. I've requested that the chip name and images are updated in any appropriate tutorials and requested that the pdf version of the reference manual (updated wiki) is updated as well. Thanks, JColvin
  33. 2 points
    xc6lx45

    Diving in

    ... a slightly longer answer, if anybody is interested (analog mixing with square wave LO): One way is to look at the Fourier series of the square wave as a sum of sines at frequencies f, 3f, 5f, 7f, ... and to a lesser extent 2f, 4f, 6f from implementation imperfections. Then think of the mixer as linear multiplier, and use superposition (the distributive property of multiplication) for a*(b3+b5+b7+...) = a*b3+a*b5+a*b7+... Hint, if anybody wants to formally go through the math, it gets much less messy with cos(x) = (exp(ix)+exp(-ix))/2 aka DeMoivre. So you really get multiple frequency translations instead of one. What remains to be done is to manage the input signal energy at those frequencies I don't want, with a filter or narrow-band antenna. In the digital world, you'd always use a sine wave.
  34. 2 points
    jpeyron

    iMPACT Settings For SPI Programming

    Hi @bass2, Here is the Nexys 3 reference Manual.In the Memory section it discusses the 16 Mbyte Cellular RAM (Micron part number M45W8MW16) and the parallel PCM device (Micron part number NP8P128A13T1760E) and the 16 Mbyte serial PCM device (Micron part number NP5Q128A13ESFC0E). Here is a xilinx forum thread that discusses using iMPACT with the Nexys 3.Here is a tutorial on creating a .mcs file . cheers, Jon
  35. 2 points
    jpeyron

    PS configuration help

    Hi @Newbiee, There are only a few pre-defined hardware platforms usable in SDK. I have attached a screen shot of the pre-defined hardware platforms in SDK 2018.2. The hardware platform is built from a bit stream generated and exported to SDK from Vivado. Bitstreams are board specific due to board specific pin assignment. Xilinx included hardware platforms of their fpga boards in SDK. The enclustra ZX3 (xilinx7020) does not look to be one of the pre-defined hardware platforms in SDK. I believe that you will need to generate a bitstream using Vivado. One of the reasons Digilent provides vivado board files for our boards is when running block automation it configures the microblaze/zynq processors correctly. cheers, Jon
  36. 2 points
    Hi @JColvin, I'll write a detailed article on our website during next month (with more screenshots/video). Below some more details: - OpenScopes are connected to a BeagleBone via a powered hub. On the same board there's a service that connects to the 3 scopes and exposes them via a REST API. The service basically forwards commands (Digilent Instrumentation Protocol) to the scope via USB and sends back the responses, making sure valid responses are sent/received before forwarding. The REST API also offers some control commands (e.g. check status). The idea is similar to the "Digilent Agent", but it it is multidevice and it is written all in Python. aiohttp (asyncio) is used for the server code. The firmware has been slightly adapted so that trigger from device 1 is sent to LA of device 2 and 3, the trigger from device 2 to 1 and 3, etc. This allows to configure any device analog channel as a trigger source for all devices. - The desktop application interacts with the REST API (also via aiohttp), but offering a unified experience so that the user feels there's a single device with 6 channels. It is written in Python, using PyQt/PySide for the GUI part. It offers two functionalities, the "scope view" (screenshot above) and the "recorder view" (we're still polishing the last bits of it). It also has a dark/light theme and it's multilanguage. Best regards, Gerard
  37. 2 points
    Hi @spri Actually, the FDwfAnalogOutRunStatus returns not only the the remaining run but also the wait time. dwf.FDwfAnalogOutRunSet(hdwf, channel, c_double(2)) dwf.FDwfAnalogOutWaitSet(hdwf, channel, c_double(2)) dwf.FDwfAnalogOutRepeatSet(hdwf, channel, c_int(2)) dwf.FDwfAnalogOutConfigure(hdwf, channel, c_bool(True)) for i in range(10): sts = c_byte() sec = c_double() dwf.FDwfAnalogOutStatus(hdwf, channel, byref(sts)) dwf.FDwfAnalogOutRunStatus(hdwf, channel, byref(sec)) print("State: "+str(int(sts.value))+ " time left: "+ str(sec.value)) time.sleep(1) State: 7 time left: 1.99928738 // wait State: 7 time left: 1.00601063 State: 3 time left: 1.99434336 // run State: 3 time left: 0.97901375 State: 7 time left: 1.97874957 // wait State: 7 time left: 0.97872712 State: 3 time left: 1.9787507 // run State: 3 time left: 0.96878297 State: 2 time left: 0.0 // done @JColvin The *Get function return the configured value by *Set functions, like if you *Set the sample rate to 60MHz, the *Get will return the actually configured 50MHz, since the device can only do 100MHz, 50MHz, 33.3MHz...1uHz The *Status function return the monitorized information.
  38. 2 points
    attila

    Math on FFT traces

    Hi @lab!fyi The Script/Spectrum is added to the Help of beta version. Please use the Help of the application since this is the most up to date resource. https://forum.digilentinc.com/topic/8908-waveforms-beta-download/ You could use Ctrl+Space, code completion: https://forum.digilentinc.com/topic/15433-more-meta-data-wanted/?do=findComment&amp;comment=37724 Beside this the code is JavaScript: http://www.ecma-international.org/publications/standards/Ecma-262.htm https://www.w3schools.com/jsref/jsref_obj_math.asp For next software version added support to set trace data from script.
  39. 2 points
    attila

    Math on FFT traces

    Hi @lab!fyi We could add math to the Spectrum Analyzer interface. At the moment you could use Script with plot for such purpose. Collect the data in Spectrum Trace 1 and 2, in Script tool View/Add plot and Run the following script: plot1.X.Units.text = "Hz" plot1.Y1.Units.text = "dB" plot1.X.data = Spectrum1.Trace1.frequency var t1 = Spectrum1.Trace1.magnitude var t2 = Spectrum1.Trace2.magnitude var c = t1.length var d = [] for(var i = 0; i < c; i++){ d.push(t2[i]-t1[i]) } plot1.Y1.data = d
  40. 2 points
    attila

    Math on FFT traces

    Hi @lab!fyi 1. I think for your experiment you should use the Network Analyzer interface of the WaveForms application. Connect the Scope channel 1 to your filter input and channel 2 to the output. By default, the analyzer plots the magnitude and phase of channel 2 relative to 1. This will give the characteristics of your filter. In the NA under Wavegen gear menu select channel external (let you use external or custom wavegen control) and frequency extended (to let you use up to 50MHz). The Scope Math channel is performed on the time domain data not on the FFT. 2. The persistence view will be update with the next software version to handle curve interpolation option as well the min/max sampling.
  41. 2 points
    jpeyron

    Basys 3 XADC

    Hi @Rohit kumar jain, To add to @BogdanVanca's post , here is an XADC demo for the Basys 3 that uses 4 analog inputs. Here is the GitHub releases for the XADC demo. thank you, Jon
  42. 2 points
    JColvin

    Zedboard 3.3V Aux

    Hi @JeffL, For the Rev D version of the board, this pin (D32 on the FMC) will also be a VCC 3.3V supply, much like it is for @zygot's Rev C. From the specification for VITA 57.1, this pin is "a 3.3V auxiliary power supple available for IO Mezzanine module use and is not intended to provide primary power to the module but rather to accommodate system management functionality which might need to operate even if the onboard power conversion circuitry fails." Based on rule 5.101 though, we (Digilent) have chosen to service this pin by using the main 3.3V line. So, the short answer to your question is that the pin specifically on the Zedboard is a 3.3V source, though from my understanding this auxiliary supply should not be connected with any 3.3V primary paths on the mezzanine side. Thank you, JColvin
  43. 2 points
    awang735

    PMOD DA1 to zedboard

    Nevermind, i downloaded the digilent board files from https://reference.digilentinc.com/learn/software/tutorials/vivado-board-files/start?redirect=1 and was able to connect the pmod ip via the board tab in ip integrator like it says in the walkthrough
  44. 2 points
    D@n

    Default Power-up Value of Registers

    @Foisal Ahmed, I'm not sure you understand what you are asking. Uninitialized logic values in Xilinx designs are already 1'b1's. This has caused me no end of grief in the past. Simulations treat initial values differently. Most simulations will treat an uninitialized value as an unknown until it is set. This is industry practice. I know Verilator tries to set unconstrained initial values to be random numbers. This is an exception to the industry practice that is done for performance reasons. The discrepancy between Verilator and Xilinx has been the root of much grief--since uninitialized things that work in Verilator don't always work in Xilinx. Depending upon a default initial value for registers within a design, however, is poor practice. The better approach is to force registers that need initial values to whatever initial value they should have. In Verilog, this is done using an 'initial' statement. In VHDL this can be done in the declaration statement, where the register is declared in the first place. Xilinx FPGA's by design will not release your design from its initial state unless all of your registers have their declared initial values. Were you to force all LUTs in a design to be 1'b1 initially, you would break any vendor supplied IP (i.e. DDR3SDRAM core, etc) you might be working with. Can you explain more of what you are trying to accomplish? Perhaps there's a better solution for what you wish to do. Dan
  45. 2 points
    BogdanVanca

    programming guide of zynq

    Hello @Ram, Please check this link : https://reference.digilentinc.com/learn/programmable-logic/tutorials/zybo-getting-started-with-zynq-server/start "This guide will provide a step by step walk-through of creating a Zynq based hardware design using the Vivado IP Integrator that will build over the Getting Started with Zynqguide by making use of the on-board Ethernet port and GPIOs for the Zybo FPGA board.". You can start from here, and use the same hardware logic but different type of application for uart, spi etc. Best Regards, Bogdan Vanca
  46. 2 points
    jpeyron

    How to read from SD card on ZYBO

    Hi @shahbaz, @Notarobot is correct. I forgot the Zynq processor has the xilffs library for the SD card and that the SDcard is directly connected to the PS. You should not use the Pmod SD IP Core. I have attached some screen shots that should help with getting your project going. I used the Zybo board files. Here is a tutorial on how to install the board files if have not done so already. thank you, Jon
  47. 2 points
    jpeyron

    Zedboard Zynq 7000 XADC Header

    Hi @farhanazneen, I used the Analog Discovery 2 which has the 2x15 Flywires: Signal Cable Assembly for the Analog Discovery without issue. Each signal wire is 260mm± 20. thank you, Jon
  48. 2 points
    Notarobot

    How to read from SD card on ZYBO

    Hi shahbaz, If you are Ok using micro SD card adapter embedded in Zybo I would recommend to use it with the driver xsdps provided by Xilinx. Please note that it is connected and intended for use by PS not PL. The driver is located in Vivado library \embeddedsw\XilinxProcessorIPLib\drivers\sdps In Vivado the only thing is needed is enabling SD card in the processing system. Everything else is done in SDK. There you will need to add library xilffs to the BSP. File system and functions are described in here Good luck!
  49. 2 points
    @thobie, the bare-metal purchase option for the Zybo was done to enable a lower price point for those who do not require the accessories. For the rest of our customers, adding the Accessory Kit is recommended during the purchase process. You are not the first and the last to complain about version compatibility. It is economically unfeasible for us to update all support projects, IP and support packages provided for free four times per year for each Vivado version. Instead we made a commitment to consider the last Vivado release in each year stable and do a once-a-year update cycle. In that regard, 2017.4 is the version we are upgrading projects to. There is a question whether OOB designs should be updated at all, or kept at the version which generated the binary image shipped with the board. The board presets are not versioned for Vivado (no version-specific releases in our git repo), because these should be forward-compatible with Vivado versions. The critical warning itself related to CK-to-DQS delays being negative appears starting with 2017.4. The negative values are due to CK trace being shorter than any of the four DQS traces. In the early days of Zynq board design negative values where listed as sub-optimal, but not erroneous. Tree topology instead of fly-by was also among the routing recommendations for DDR3 layouts. So the Zybo was designed with this sub-optimal layout due to space constraints. During Write Leveling calibration, 0 is used as an initial value instead of the negative preset delays. After calibration, if the skew is still too low, the clock is inverted. See ug585 pg 316 for more details. All Zybos shipped to customers are functionally tested and pass the DDR3 calibration process. Xilinx recommendations changed in the mean time, both in terms of routing topology and delay values. A trace of this can be found here: https://www.xilinx.com/support/answers/53039.html. The > 0ns requirement was introduced to be in line with non-Zynq MIG-based designs, where negative delays were never permitted. Since these delays are board-dependent, we would need to re-design the board to make the delay positive. This is impossible with the current form-factor. Another option would be modifying the board preset file and forcing a zero value instead of the actual delay. The tools seem to be using zero anyway for calibration. This will have to be thoroughly verified first.
  50. 2 points
    attila

    WaveForms beta download

    3.11.4 digilent.waveforms_beta_v3.11.4_64bit.exe Added: - Scope: - set/reset zero offset in each channel option - precision option for measurements Fixed: - Script: access to traces and channels from Instrument.Export - unit conversions V to Ṽ, A to à - I2S 32 bit data 3.11.3 digilent.waveforms_beta_v3.11.3_64bit.exe digilent.waveforms_beta_3.11.3_amd64.deb digilent.waveforms_beta_3.11.3.x86_64.rpm Fixes 3.11.2 digilent.waveforms_beta_v3.11.2_64bit.exe digilent.waveforms_beta_3.11.2_amd64.deb digilent.waveforms_beta_3.11.2.x86_64.rpm Added: - Spectrum, Network and Impedance Analyzer store time data when this view is open Fixed: - runscript argument - loading of docked views geometry 3.11.1 digilent.waveforms_beta_v3.11.1_64bit.exe digilent.waveforms_beta_3.11.1_amd64.deb digilent.waveforms_beta_3.11.1.x86_64.rpm Added: - Scope: out of range warning in measurements - Protocol/UART: - support up to 32bit/word - TX/RX format: text, binary, decimal, hex - Wheel Direction option - Logic Analyzer: option to swap previous/next events - Spectrum Analyzer: allowing higher number of BINs for CZT 3.10.7 digilent.waveforms_beta_v3.10.7_64bit.exe Added: - Spectrum: logarithmic magnitude scale for voltage units - Protocol: datetime stamp for SPI/I2C Spy Fixes 3.10.6 digilent.waveforms_beta_v3.10.6_64bit.exe Added: - Scope - access to digital channels from custom mathematic channels - digital measurements view Fixes 3.10.5 digilent.waveforms_beta_v3.10.5_64bit.exe digilent.waveforms_beta_3.10.5_amd64.deb digilent.waveforms_beta_3.10.5.x86_64.rpm Added: - Power Supplies for AD2: tracking, slider, min/max - Logic Analyzer: Measurements - Impedance Analyze: DC mode compensation - SDK VB wrapper, C# wrapper updated Fixed: - EExplorer Wavegen AM/FM index precision for sine 3.10.4 digilent.waveforms_beta_v3.10.4_64bit.exe Fixed: - decimal resolution in Export, Data and Event views 3.10.3 digilent.waveforms_beta_v3.10.3_64bit.exe digilent.waveforms_beta_v3.10.3.dmg digilent.waveforms_beta_3.10.3_amd64.deb digilent.waveforms_beta_3.10.3.x86_64.rpm Added: - UART format option (binary, decimal...) - SDK I2C without clock stretching - SDK examples: Digital_I2c_PmodAcl.py, Digital_I2c_PmodGyro.py - Spectrum Analyzer THDN measurement, THDp and THDNp in percentage units - Impedance Analyzer: - constant current, voltage, custom script for amplitude and resistance control - Option to disable mouse drag and wheel operations on plots - Impedance/Network Analyzer: averaging time - Wavegen: extended frequency option Changed: - special values (none, off) moved to end of the preset list 3.10.2 digilent.waveforms_beta_v3.10.2_64bit.exe digilent.waveforms_beta_v3.10.2_32bit.exe digilent.waveforms_beta_v3.10.2.dmg digilent.waveforms_beta_v3.10.2_mavericks.dmg digilent.waveforms_beta_3.10.2_amd64.deb digilent.waveforms_beta_3.10.2_i386.deb digilent.waveforms_beta_3.10.2.x86_64.rpm digilent.waveforms_beta_3.10.2.i686.rpm Added: - Impedance Analyzer - voltage, current and custom plots - edit Meter list - Resistance mode for Meter, Frequency DC option - step mode in Time view - Netowrk Analyzer - step mode in Time and FFT views - amplitude table and custom function Fixed: - Help minor fix - Protocol SPI and I2C Sensor rate improvement - StaticIO button lock 3.8.22 digilent.waveforms_beta_v3.8.22_64bit.exe digilent.waveforms_beta_v3.8.22_32bit.exe Added: - Impedance differential setup, W1-C1P-DUT-C1N-C2-R-GND 3.8.21 digilent.waveforms_beta_v3.8.21_64bit.exe digilent.waveforms_beta_v3.8.21_32bit.exe digilent.waveforms_beta_v3.8.21.dmg digilent.waveforms_beta_3.8.21_amd64.deb digilent.waveforms_beta_3.8.21_i386.deb digilent.waveforms_beta_3.8.21.x86_64.rpm digilent.waveforms_beta_3.8.21.i686.rpm Added: - data property for impedance/network channels. - Impedance.Resistor.reference property - instruments accessible without index in Script tool like Scope. Fixes... 3.8.20 digilent.waveforms_beta_v3.8.20_64bit.exe Added: - Logger function access to other channels value, average, min, max - Script access to Logger channel set data property, getting average, minimum, maximum Fixed: - Logger Show/Maximum - Script Protocol.I2C.Clear() function 3.8.18 digilent.waveforms_beta_v3.8.18_64bit.exe digilent.waveforms_beta_v3.8.18_32bit.exe digilent.waveforms_beta_v3.8.18.dmg Added: - Network Analyzer - logarithmic scale and percentage unit - spectrum measurements: Carrier, THD+N, THD, HD# - FFT view - Averaging option 3.8.17 digilent.waveforms_beta_v3.8.17_64bit.exe digilent.waveforms_beta_v3.8.17_32bit.exe digilent.waveforms_beta_v3.8.17.dmg digilent.waveforms_beta_3.8.17_amd64.deb digilent.waveforms_beta_3.8.17_i386.deb digilent.waveforms_beta_3.8.17.x86_64.rpm digilent.waveforms_beta_3.8.17.i686.rpm Added: - Scope - persistence support for smooth curve and min/max sampling - custom math - current value in custom math function, can be used for averaging - initialization code for integration purposes - examples - unit presets for: ohm, degree, VAC, AAC - Spectrum - Import/Export samples for Traces - trace information option - Range option to adjust all the scope input ranges - Network and Spectrum - Script support for set magnitude property - Step size and steps per decade settings - Network Analyzer - custom plots: THD, HD2, HD3 - Protocol - I2C/Spy glitch filter based on frequency setting - Device options - On Close: Run (keep running), Stop, Shutdown - USB Power: Always ON or Stop with AUX for AD2 - USB Limit: USB current limitation AD1,2 - Audio Output: AD1, 2 - WaveForms SDK FDwfParamSet/Get, FDwfDeviceParamSet/Get - DwfParamOnClose, DwfParamUsbPower, DwfParamLedBrightness, DwfParamAudioOut, DwfParamUsbLimit - Notes toolbar show/hide option - on/off icon for toggle buttons: supply enable, network analyzer reference... - show entire capture button Changed: - renewed mouse wheel, drag and key (left,right,up,down) operation on plots and axis Fixed: - EExplorer output glitch during first device connection - NI VI crash when initializing without device connected - Scope XY plot 3.8.11 digilent.waveforms_v3.8.11_64bit.exe digilent.waveforms_v3.8.11_32bit.exe digilent.waveforms_v3.8.11.dmg digilent.waveforms_3.8.11_amd64.deb digilent.waveforms_3.8.11_i386.deb digilent.waveforms_3.8.11.x86_64.rpm digilent.waveforms_3.8.11.i686.rpm Added: - Digital Discovery: - LED brightness option - Logic Analyzer - ASCII format for: Bus, SPI, I2C, I2S - Format option for I2C - Logic Analyzer and Patterns - Line Color option - Protocol - Format option for SPI and I2C: Hexadecimal, Decimal, Binary, ASCII - Plot Width option in application settings Changed: - drawing quality improvement for thicker lines - color dialog buttons renamed to Close and Reset 3.8.9 digilent.waveforms_v3.8.9_64bit.exe digilent.waveforms_v3.8.9_32bit.exe digilent.waveforms_v3.8.9.dmg digilent.waveforms_3.8.9_amd64.deb digilent.waveforms_3.8.9_i386.deb digilent.waveforms_3.8.9.x86_64.rpm digilent.waveforms_3.8.9.i686.rpm Added: - WF/Settings/Options: Locale with System or English US regional option, export and import options - SDK: FDwfParamSet/Get function - Scope: measurement resolution Fixed: - minor issues 3.8.8 digilent.waveforms_v3.8.8_64bit.exe digilent.waveforms_v3.8.8_32bit.exe digilent.waveforms_v3.8.8.dmg Added: - WF SDK: - examples updated to be Python v3 compatible - FDwfAnalogImpedance functions for impedance/network analysis - Protocol: CAN receiver filter by ID - Impedance: Export information about amplitude and offset Fixed: - WF SDK: FDwfDigitalSpi functions read MISO/RX 3.8.7 digilent.waveforms_v3.8.7_64bit.exe Fixed: - Scope: save/load of coefficients for custom Math channel filter 3.8.6 digilent.waveforms_v3.8.6_64bit.exe digilent.waveforms_3.8.6_amd64.deb Added: - Export: Wavegen and Supplies information added to Scope, Spectrum, Impedance, Network export comments Fixed: - Script Tool.exec timeout - CAN high polarity option in Protocol tool and WF SDK 3.8.5 digilent.waveforms_v3.8.5_64bit.exe Added - Script functions: getSaveFile, getOpenFile, getDirectory - Scope: multiple scales, zero offset - Notes view - Export options: notes, header as comment - Help tab: floating/undock option, find with highlight Fixed: - Impedance Analyzer frequency scale in export 3.7.22 digilent.waveforms_v3.7.22_64bit.exe digilent.waveforms_v3.7.22_32bit.exe digilent.waveforms_v3.7.22.dmg digilent.waveforms_3.7.22_amd64.deb digilent.waveforms_3.7.22_i386.deb digilent.waveforms_3.7.22.x86_64.rpm digilent.waveforms_3.7.22.i686.rpm Added - Scope/Logic View/Logging picture format - Script: - Export function for instruments - access to Protocol/UART/RX using Receiver, Receive and ReceiveArray functions, SendArray Fixed - Scope edge trigger position for all devices, when only one or two samples are above the threshold - other minor fixes 3.7.21 digilent.waveforms_v3.7.21_64bit.exe digilent.waveforms_v3.7.21_32bit.exe digilent.waveforms_3.7.21_amd64.deb digilent.waveforms_3.7.21_i386.deb digilent.waveforms_3.7.21.x86_64.rpm digilent.waveforms_3.7.21.i686.rpm Added - Wavegen dynamic configuration, adjustments without restarting the generator - SDK support for CAN bus TX, RX - more detail in Spectrum, Network and Impedance Analyzer export comments - import data orientation option Fixed - Network Analyzer Meter export and copy - Data Logger quick measurements - other fixes and optimizations 3.7.19 digilent.waveforms_v3.7.19-2_64bit.exe digilent.waveforms_v3.7.19-2_32bit.exe digilent.waveforms_v3.7.19.dmg digilent.waveforms_3.7.19-2_amd64.deb digilent.waveforms_3.7.19-2_i386.deb digilent.waveforms_3.7.19-2.x86_64.rpm digilent.waveforms_3.7.19-2.i686.rpm Added: - Logic I2S Show channel option - SDK functions for UART, SPI, I2C master and UART receiver Changed: - OS-X rollback to FTDI driver 1.2.2 Fixed: - Impedance Analyzer: save/load of views positions - other fixes and optimizations 3.7.15 digilent.waveforms_v3.7.15_64bit.exe digilent.waveforms_v3.7.15_32bit.exe Added: - Logic Analyzer: position (Nth word) option for SPI trigger on value - Impedance: Nyquist plot; settle time, minimum periods options - Wavegen, Network/Impedance Analyzer: external Amplification option - Tabbed/Docking window switching from main window Changed: - lower frequency limit for Scope, AWG, Network, Impedance Fixed: - 10ns delay in Logic Analyzer Sync and Protocol interface - Sound Card device CPU usage 3.7.14 digilent.waveforms_v3.7.14_64bit.exe digilent.waveforms_v3.7.14_32bit.exe Added: - Protocol I2C ACK/NAK last read byte option Changed: - Windows XP, Vista compatible FTDI driver in 32bit installer 3.7.13 digilent.waveforms_v3.7.13_64bit.exe digilent.waveforms_v3.7.13_32bit.exe digilent.waveforms_v3.7.13.dmg digilent.waveforms_3.7.13_amd64.deb digilent.waveforms_3.7.13_i386.deb digilent.waveforms_3.7.13.x86_64.rpm digilent.waveforms_3.7.13.i686.rpm Added: - Sound Card device of the computer can be used as Scope and Wavegen - Scope sampling clock for Electronics Explorer - Logic Analyzer data compression for recording, for Electronics Explorer - Scope and Wavegen support for 4th device configuration of Analog Discovery 1 & 2 - Scope Logging Repeat option - Scope Audio view: Stereo, Tempo options - MacOS option for application menu 3.7.12-2 digilent.waveforms_v3.7.12-2_64bit.exe Fixed: - Analog Discovery 2 configuration file descriptions 3.7.12 digilent.waveforms_v3.7.12_64bit.exe digilent.waveforms_v3.7.12_32bit.exe Added: - Scope sampling clock under time options, for Analog Discovery 1 & 2. The trigger IOs can be used as sample clock with delay and edge options. - Logic Analyzer data compression for recording, for Analog Discovery 1 & 2 Changed: - Windows installer: - embedded prerequisites: Windows Installer, Visual C++ Redistributable 9 32/64bit, 12 64bit - split installer for 32bit and 64bit WF applications, but the included WF runtime for custom applications support both architectures Fixed: - Logic Analyzer UART frame error threshold 3.7.10 digilent.waveforms_v3.7.10.exe Added: - Spectrum Analyzer Markers Fixed: - SDK Electronics Explorer enumeration - Scope Math channel unit presets 3.7.9 digilent.waveforms_v3.7.9.exe Fixing: - Logic Analyzer Event view double click for signals 3.7.8 digilent.waveforms_v3.7.8.exe Changed: - Impedance Analyzer: - view names - solid line for magnitude Fixed: - Impedance Analyzer admittance |Y| value 3.7.7 digilent.waveforms_v3.7.7.exe Added: - Scope and Logic trigger detector for trigger source Fixed: - warning message when connecting to EExplorer - Patterns trigger on Digital Discovery.