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Found 6 results

  1. 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. Could someone provide me a tutorial or a sample project? All the tutorials on the internet are about processing Video (not simple images)
  2. 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 type of Linux please help me.
  3. 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 */ int button_data=0x00; int switch_data=0; int led_value = 0; int i=0; char cmd[4]; XGpio_Initialize(&output, XPAR_AXI_GPIO_1_DEVICE_ID); XGpio_SetDataDirection(&output, 1, 0x0); XGpio_Initialize(&input, XPAR_AXI_GPIO_0_DEVICE_ID); XGpio_SetDataDirection(&input, 1, 0xF); while(1) { i++; printf("This the %d time run the while loop\n\r",i); printf("Enter Command: \n\r"); gets(cmd); switch_data = XGpio_DiscreteRead(&input, 1); printf("switch_data = %d\n\r",switch_data); led_value = switch_data+1; XGpio_DiscreteWrite(&output, 1, led_value); printf("data wrtie over"); printf("=========================================="); usleep(20000); } return 0; }
  4. 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, zynq-7000.dtsi, system-top.dts and system-conf.dtsi As I wrote I am only allowed to change stuff in the system-user.dtsi file. But when I compare the driver code from your Zybo Z7-20 and the stuff I found in the internet. It looks completly different. So where and what do I have add? I wrote that I have to enable the kernel configuration (where and how)? Am I doing this with petalinux-config -c kernel, is it also possible that when I use my own hardwaretarget for PetaLinux creating , that the enabeling of the drivers happened already? 2) I want to send the voltage values over ethernet, so do I need one or two drivers (XADC-driver or XADC + ethernet-driver) for it and also a gpio driver, right? Is there code for Zybo Z7-20 somewhere existing, or where can I find some code that is fitting? I made more trys but never the petalinux-build was successfully. Thanks again for your help and time, it is always totally helpful! A+ for your job, helping a totally newbie ;-) greetings,
  5. 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?
  6. 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 waveform with high precision in the PL part and tells it to the PS part.) As a prerequisite, I would like to be able to realize without learning Verilog and VHDL. Is it possible to realize the above problem with only C language? I can accomplish the above tasks by using NI product sbRIO and LabVIEW, but I would like to be able to use ZYBO in the same way. that's all, thank you very much. (I translated it from Japanese using Google translation, I may not have translated well, sorry.)