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  1. Arduino is the SPI Master and therefore provides the clock, SPICLK through a PMOD. How do I receive the clock in a good way on the FPGA? Vivado does not approve of checking rising_edge(SPICLK) so I though I'd put a clock buffer or something in between (not that I know why or what they do but it sounds like a good idea). At some point Vivado told me to add "set_property CLOCK_DEDICATED_ROUTE FALSE [get_nets {SPICLK_IBUF}]" to the constraints file, but I still got warnings and it didn't recommend I proceed. If I have the top level SPICLK connected to an IBUF_IBUFDISABLE with the
  2. I've been trying to learn how to use the AD2 Logic Analyser. I got it to work with Serial.println("Hello world!"). I've learned that the Base: selection is critical to capturing the data. If you get it wrong, you get Framing Errors and the wrong characters. Now I am trying to use the Logic Analyser with an Arduino Uno running a clock/date ino that displays on a 16x2 LCD. I do not have the LCD connected, but when I wrote the program it was and it worked perfectly. I have also tried an ino that displays Hello World on the top line of the LCD. My connection is described below. I h
  3. I just plugged in this board and to test it out. My intent is to use it in a RS422 format, but will need to understand what changes I need to make later. I've opened up the arduino sketch and uploaded it to my AST-CAN485 from Sparkfun. I modified Digilent's the code so it uses the alternative software serial library. Other than that, it's all the same. When I run the code and open up the serial monitor, the loopback is actually happening in the hardware. I can unplug the looped wires and still get a message back. So the echo example code seems to not work properly. Any ai
  4. Dear All, I am confused about the calibration process of PModIA module with Arduino board. I am using a program from Github, please check that. Also tell me the use of SEL pin in the board. Can you please tell me step by step procedure... ad5933-test.ino
  5. Hi, I am using example code that I got from GitHub to try to read the impedance through Arduino. On the reference guide that digilent provides, there are a series of steps you have to take to calculate the correct impedance. All of those functions are already written, but I do not know how to calibrate the AD9533. I know it says something about a reference resistance, phase, etc., but I am unsure if I am supposed to put the reference resistance in between the SMA connectors and then once it has done a sweep to calculate the gain factor. Am I supposed to insert the reference resistor first
  6. Hi guys: I need know how create a Custom Command in LINX for read a encoder of two square pulses from the digital pins of Arduino in LabVIEW. Thanks.
  7. I have been playing with the Digilent DMM shield and trying to understand how the shield and the ic hy3131 work. My question is about the multiplication factors which are used for converting the adc value to real value. For example, the multiplication factor in the library for 5V DC range is: 125e-1/1.8/8388608 If I'm correct, in 5V DC range the input signal is divided by 10 and fed into the adc whose reference voltage is 1.2V, so my question is why we multiply the value by 12.5? Shouldn't it be 12.0 instead because the reference voltage is 1.2V?
  8. Hello, my goal of my project is to communicate with a BLE 4.2 Module in a smart Lamp with the help of an Arduino and the Pmod BLE. I am using the Arduino because I want to automate the process of connecting to the lamp. The Pmod is later supposed to send commands to the BLE Module of the lamp to turn it off and on or change the colors. I did not get really far yet. In fact I am still stuck with example code. I'm using a Pmod BLE (https://reference.digilentinc.com/reference/pmod/pmodble/start) which is connected to an Arduino Due. The Serial Pins of the Due have 3,3V. I connected Grou
  9. Hi, i am a newbie and need help regarding the control system that i am doing at the moment. I try to connect PmodNAV with Arduino UNO and followed this tutorial: https://reference.digilentinc.com/learn/software/tutorials/digilent-core-install/start. Unfortunately, i get this error: "PmodNAV_ArdUNO:31: error: 'LSM9DS1' does not name a type". I already installed the required version of Arduino (1.6.9) as they said newer version might come with the compatiblity issue. Can anyone help me regarding this problem? Thank you very much for your time on considering my problem.
  10. Hi, I've been trying to get the PMOD DA2 (just Channel 1 for now) working on a fleet of Arduino Leonardos via the ICSP header. I'm getting bizarre (jumpy, non-monotonic) voltages out of it and I'm stumped. Things get particularly squirrely around outputting 2048 counts (half scale) - I do believe that my upper/lower byte math is correct, so i think the issue is with the SPI writing/sequencing. Has anyone had any luck putting a DA2 on a Leonardo via ICSP? I've attached my (not working) test sketch. Any idea what's wrong? I poked around the web and this forum, but can't seem to find a
  11. Hi, I am trying to install Arduino IDE with the Digilent Core on a Windows 10 machine. I've tried different Versions from 1.6.8 to 1.9beta. When I try to use the Additional Boards Manager URL it fails at the Signature check. If I install it manually the IDE is not able to find "/bin/pic32-g++.exe". Where do I have to put the files under "chipkit-core" ? Is there a working json-file for automatic installation ? What am I doing wrong ? Thanks for help Markus
  12. Hi, I want to connect Pmod to Arduino Uno. From Arduino pins we get 5V so does this refer only to power supply (which we have on Arduino board) or for others pins too? Is it safe to connect it directly to Arduino or I have to use voltage dividerfor other pins? Thank you.
  13. Hi all, I am brand new to FPGAs and am finding the documentation more confusing than enlightening regarded this issue. I am having considerable difficulty getting my PYNQ-Z1 board to output a voltage through the Arduino IO ports. Currently I have a complete circuit from Arduino IO 0 to a breadboard with an LED and resistor in series, and it connects back to the Arduino ground port. My code is as follows: In [1]: from pynq.overlays.base import BaseOverlay base = BaseOverlay("base.bit") from pynq.lib.arduino import Arduino_IO In [2]: x=Arduino_IO(base.AR
  14. I am not able to interface PmodCLP with arduino UNO. Code provided on the website is compiling but lcd is showing nothing. Please provide me the working code and image.
  15. Hi Is PmodCLP compatible with the Hitachi HD44780 driver ?
  16. Good day, My graduation assignment is a prototype of a localization module to be used inside a greenhouse. The method that I am using is Time Difference of Arrival. The two signals that are part of it are radio frequency via an XBee and ultrasonic signal via a HC-SR04. My goal is to use four beacons and one tag to establish the localization prototype. Currently, I am facing a problem that I cannot solve which is letting the HC-SR04 communicate with one another. The goal is let one(tag) HC-SR04 work( https://www.hqew.net/news/news-33872https://www.hqew.net/news/news-33872 ) as a t
  17. Hello, I am unclear on whether the PmodIA works with Arduino. If I get the digilent arduino core will I be good to go, or do I need a digilent board to use it? Also, is it possible to modify the pmodia to use it on lower frequencys/impedance so it could be used for batteries? Thank you!
  18. Hello, I am trying to send oscilloscope data from the Analog Discovery 2 to the Arduino Uno. Would there be a way I could do this so that the Arduino could read it in live time? Miranda
  19. Hi Anyone, I need your help in hurry, I'm trying to connect Arduino Due with LINX in LabView, but I couldn't found firmaware for my board, is there any suggestion for me?
  20. Dear Forum Colleagues, I have a Digilent Arty S7 board and would like to integrate an Arduino shield that I own but am cautious as the Arty user manual states "Note: The Arty S7 is not compatible with shields that output 5V digital or analog signals. Driving pins on the Arty S7 shield connector above 5V may cause damage to the FPGA.". The shield I bought is the Velleman LCD Keypad and the instruction pdf is here Has anyone used something like this before and can provide some advice? I assume the Arduino shield is 5v but the sentence above seems to contradict itself. The shield does m
  21. I am finally getting my arty running and have written or modified existing VHDL code and configured it to the FPGA with great success. I am wondering if there are references upon connecting to the arduino usb host shield. I am also wondering how soon the arty A7-100 will be available. Sincerely, DC
  22. Dear Team of Digilent. I am currently working with an MZ OpenScope with the Arduino IDE. I was able to load the Blink program on the shield. But now I am limited, because of the OpenScope.h file I only found some pin declared. // some gpio pins #define PIN_SD_DET PORTD, (1 << 1) // RD1, pin 36 #define PIN_INT_MRF PORTG, (1 << 8) // RG8, pin 59 #define PIN_HIB_MRF LATD, (1 << 13) // RD13, pin 60 #define PIN_RST_MRF LATA, (1 << 4) // RA4, pin 61 #define PIN_WP_MRF LATA, (1 << 14) // RA14, pin 62 #define PIN_LED_1 LATJ, (1 <&l
  23. Hi, I've build a board using the pic32MX795L, the same as the Chipkit max32 for research purpose. I can upload any code using the pickit 3 and a generated code from MPLAB X, but when I upload the bootloader from Digilent site, nothing happens. I manage to build a code in MPLAB to test the operation of the circuit and every thing seams ok, I can send and receive data over the UART1 @115200 baud with no problem. But when I upload the firmware with pickit, the device is not recognized by pic32prog. the message after a few seconds is "No target found." even when I hit the reset during up
  24. Hello, I have some questions about the Analog Shield: - What is the dimension of an analog shield plugged on top of an Arduino Uno? (Total dimension of the assembly, for planning the size of the enclosure) - What is the pitch of the headers on top of the board, where the AO pins are routed? Is it standard 2.54-mm pitch? Is there a guide somewhere what is the location of these headers for plugging some boards in them? (Like for routing some BNC plugs to the wall of the box) - A very stupid question in the end: do I need to separately power the Analog shield when coupled with