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Found 6 results

  1. Just starting with FPGA's and using the Zedboard. I have a simple program that uses switches to turn on/off the leds. When I power cycle the board the program seems to be erased and I have to reprogram the board. How can I make this persistent (I am using Vivado)?
  2. Hello. I bought an ECLYPSE Z7 board some time ago. I was working on a project where I was interfacing some external peripherals on PMODs of the board. The board has suddenly been turned off and not powering up anymore. Kindly guide me in this. To figure out what is the cause and how can it be corrected. Seems like the custom power IC isn't turning on Thanks
  3. I'm trying to get the Pmod Color module for the Zynq z7-10 to work but it doesn't appear to be on. I was following along the instructions from these sites: https://reference.digilentinc.com/learn/programmable-logic/tutorials/pmod-ips/start https://projects.digilentinc.com/arthur-brown/displaying-color-readings-with-the-pmod-color-and-python-ebd794 and I have it connect to the device as such on the board's JA port: Following along with the first link, I skipped the steps where a clock and interrupt were added as the data sheet shows that the Pmod Color IP does not require these. I have included my schematic below. I see that the module has an LED pin (LD1) but it doesn't appear to be on when connected to my powered device. In the SDK, I added a debug 'else' statement to the main() portion of the code to see if the Pmod is receiving data. After running the code on the board, the else statement is the only statement being executed. What could be the issue that my module is not turning on? I took a voltmeter reading, and the Vcc and GND pins are getting 3.3V. Following the instructions of the first link, I noticed they never included a constraints file. Could this be the issue? zynq_ps_main_c.c
  4. Hello everyone, Just a quick question: is the ADP5052 pmic on Zybo monitoring all the voltage outputs (for PGOOD) or only the first channel (3V3)? Thank you in advance! Greetings, Peter
  5. nak

    nexys A7 not power on

    The nexys A7 100t board cannot be power on after I try to switch power jumpers. I measured R287 which is not shorted to ground. Any advice on which part I should look into? Thanks.
  6. I purchased a PMOD-BT2 recently and since (according to your documentation) the SPI connector uses the same power as the regular PMOD connector, I though I could just connect it via the SPI header (not supplied), for programming. Strangely enough, the FPGA board (a Nexys4-DDR) would not power up. An investigation reveals a strange fact: according to an ohm-meter the power on the SPI header is reversed compared to your documentation. I would appreciate it if someone from Digilent could confirm this from the PCB schematics and update your documentation ASAP, as well as issue an errata, because connecting the power the wrong way round has a habit of blowing things up.