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Found 8 results

  1. Hello everyone! I wanted to challenge myself and I tried implementing an I2C master capable of configuring SSM2603. I've been so far unsuccessful, not even an ACK shows up when attempting a read. Here's the wave I'm generating (I'm trying to read reg 0x6) compared with the phases as described in the datasheet. They look the same both in Post-implementation timing simulation and when checking the probes. The ACKs from master side A(M) and ~(A(M) are given unconditionally for the time being. Question 1: do you see any issue here? Question 2: The tool infers OBUFT for ac_sda
  2. Hi everyone, Hardware: Zybo Z7-20, PCam 5C, sd card Software: SDSoC 2017.4, reVISION platform for Zybo Z7-20 (release, v2017.2-3) The “Simple Filter2d Live I/O demo for Pcam5C” is perfectly working (following the readme in reVISION download archive). This code is the starting point for my application. My C++ skills are far from expert level and also quite rusty. I’m developing a live video application for my master thesis. The current step is to implement motion detection. The (simple) concept is to compute the difference between a background image a
  3. Hello everyone, I have just started a project with the Zybo Z7-20 board and I am trying to build a simple system using Vivado IP Integrator. I have added the Zybo Z7-20 board files to the Vivado but the board still does not appear in the presets for Zynq Processing System. Also I was not able to find any presets tcl file for the board in the internet. Does any one know where can I find this presets tcl file for the board is there any reference Vivado project for the board to start with?
  4. I am doing an image processing (not video) with Zybo Z7, and I am writing my own algorithm in C and C++ language for the image processing algorithm. For the simulation (without camera), I have some ready photos that can be loaded from SD card and then I want to test the performance of my algorithm on. I know Xilinx provide xsdps driver for the SD card, but I don't know how to use it for my project. But For the real application, the image processing will be done on the photos that are taken regularly by a camera. My priority, for now, is to first test my code using simulation
  5. Can someone guide me how to get Petalinux working on Zybo Z7-20? I am using Vivado and SDK 2018.3 on Windows 10. I prefer using prebuilt images and files if they are available. I found this link, but it seems it is very old, and I am not sure if I can use it on my version of Vivado and SDK: https://github.com/Digilent/Petalinux-Zybo-Z7-20 The Xilinx links for Petalinux are available here: https://www.xilinx.com/support/download/index.html/content/xilinx/en/downloadNav/embedded-design-tools.html If there exists any other easy method for installing any
  6. hello, I practice to use vivado 2018.2 to create two AXI GPIOs like the first picture. I could use C program to pass the ON/OFF from switchs to leds;however, the XGpio_DiscreteRead() is always blocked by gets() when i want to use gets() to get cmd,and write data to leds according cmd. The following is my C code.Please introduce me to solve the problem. Thank you a lot. #include "xparameters.h" #include "xgpio.h" #include <stdio.h> #include <stdlib.h> #include "sleep.h" int main(){ XGpio output,input; /* SW &LED Instance */
  7. Hello! Here is another newbie question from me! I am having a running hardware project from Vivado, and I also debugged bare metal code with SDK. Both was running perfectly. Now I also got a PetaLinux (v2017.4) run on my Zybo Z7-20. So far so good. First I thought, that I could only paste the c code on PetaLinux, compile it and let it run. But of course it didn't worked because I used bare metal code. I wrote already that I have to add drivers to the device tree. Here are my problems/questions: 1) I wrote something the following files: system-user.dtsi,
  8. Recently I bought ZYBO Z7-20. I installed Vivado, SDxIDE, VivadoHLS (both 2016.4) on the Win 7 PC and started studying. I'd like to implement an arbitrary digital waveform output program to the Pmod port of ZYBO. Although I could generate a waveform using Vivado SDK's XGpio_SetDataDirection (), the accuracy is bad. (Example: 1 us width specification → 1.4 us) I would like to realize arbitrary digital waveform programming with determinism with resolution of 100 ns in the Pmod port of ZYBO in C language. (In the next step, I would like to realize a structure that measures the arbitrary wavef