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Found 7 results

  1. How to connect the pins in the nexys4 artix7 temperature sensor
  2. Hi everyone can you help me in my problem? I am using NEXYS4 DDR, and I want to generate some output square patterns for DRAM measurement. but I dont know how can i do this with my board. hope your help, thank you so much
  3. I couldn't get the USB Cable Loader to work. So I would use a thumb drive with just one dot bit file on it. That worked for a while. I longed to stop the tedious process of plugging the thumb drive in the PC, navigating to where my bit file was on the system, copy, paste, unplug the thumb drive, plug it into the Nexys 4, power it up!?! I tried to install ISE 14.7 but I could not get my licence upgraded. Reinstalled ISE 14.6. Now the thumb drive doesn't work. I know it sounds paranoid, but did someone mod Stuxnet?
  4. Hello, So I just followed the tutorial https://reference.digilentinc.com/learn/programmable-logic/tutorials/nexys-4-getting-started-with-microblaze-servers/start and generated a bit stream . The server starts as expected because this is displayed on the sdk terminal -----lwIP TCP echo server ------ TCP packets sent to port 6001 will be echoed back link speed: 100 DHCP Timeout Configuring default IP of 192.168.1.10 Board IP: 192.168.1.10 Netmask : 255.255.255.0 Gateway : 192.168.1.1 TCP echo server started @ port 7 However,there is unknown network detected at the level of Ethernet on my PC and the packets never received. The IP address and netmask at the level of my pc are shown below: 192.168.1.11 255.255.255.0 What could be the issue?
  5. Hello, I've been strugling with de micro-sd card in Nexys-4 for quite some time. I'm using the code at sd_spi.vhd by Lawrence Wilkinson, but the FPGA never gets a valid answer from the card so it keeps looping forever (CMD8) I think I've checked all the obvious things : - Trying an old card, just in case SDHC was not properly suported - Booting the FPGA from the SD card (not USB), to check that the physical circuits were working properly - Trying with 3 different Nexys 4 boards - Lowering clock frequency to only a few hertzs (normal speed should be 50MHz, and a counter insides L.W. code slows it down for start-up) - Making sure that all jumper settings were put to SD So it's time to ask if someone has tryed to do the same with this board. I just need a simple way to read data from the SD card. I don't need a file system and using an embedded processor is too much hassle. If anybody wants to give it a try, the code is here: Project code (Constraints only for Vivado) Also, to avoid you the burden of downloading it, these are the pins I've being using (just in case is something that embarrasing obvious as using the wrong pin): set_property -dict { PACKAGE_PIN E2 IOSTANDARD LVCMOS33 } [get_ports { SD_RESET }]; set_property -dict { PACKAGE_PIN A1 IOSTANDARD LVCMOS33 } [get_ports { SD_CD }]; set_property -dict { PACKAGE_PIN B1 IOSTANDARD LVCMOS33 } [get_ports { SD_SCK }]; set_property -dict { PACKAGE_PIN C1 IOSTANDARD LVCMOS33 } [get_ports { SD_CMD }]; set_property -dict { PACKAGE_PIN C2 IOSTANDARD LVCMOS33 } [get_ports { SD_DAT[0] }]; set_property -dict { PACKAGE_PIN E1 IOSTANDARD LVCMOS33 } [get_ports { SD_DAT[1] }]; set_property -dict { PACKAGE_PIN F1 IOSTANDARD LVCMOS33 } [get_ports { SD_DAT[2] }]; set_property -dict { PACKAGE_PIN D2 IOSTANDARD LVCMOS33 } [get_ports { SD_DAT[3] }]; Thanks in advance Roberto
  6. Hi, I want to use Nexys4 ddr board to read sdcard, reference this topic and read @jpeyron answer, but after I create the block design with Pmod_SDcard ip and generate bitstream and launch Vivado18.2 SDK tool, an error for new Application Project occur, it may relate to this PmodSD IP, but I an new for using SDK tools. Can you help me how to deal with this error? Thank you! design_1_wrapper.hdf
  7. Hi I am new to microblaze. I have to design an efficient ALU using microblaze in Nexys 4 Anyone can guide through me the procedure ( I know the general guide line) and refer any document to do it Regards Uzmeed