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Found 19 results

  1. Disclaimer: I'm not an expert, just a student working on a school project. My zybo z7 board stopped showing up as /dev/ttyUSBx on my linux vm when connected using the UART microUSB port. On my windows host the com port does show up but I cannot open a connection with putty (115200 8n1), no error info or strange characters, just an error sound effect with no explanation. I tried everything on the pc side (driver reinstall, reboot, enable/disable port, different ports, different cables) but I suspect that it is the board not communicating. I use external power with WALL selected and bo
  2. Hello, I am currently working on refurbishing an existing programming bench using the Nexys Video™ FPGA Board Development Kit. Requirements for the test station require that I must use direct Tx/Rx RS232 data communication to the Artix-7 FPGA without the use of the FTDI FT232R USB-UART bridgeUART/Serial Converter Interface as described in the user manual. This used to be achieved with a now obselete Spartan-6 FPGA development board that provided a direct RS232 Serial Port on board. I cannot recall the exact model # for the retired board. Is there any way I can input RS232 data d
  3. Hi all, New to the FPGA world as I was tasked a project to help familiarize myself with the programming and function of how FPGAs work. As you can all infer, I am in need of some help on a specific project that I am doing. I am using a ZYBO Zynq 7000 development board, and Vivado 2019.1. What I am trying to do is control an external sensor, or LED through some user interface. I have seen a lot of tutorials that use the on-board LEDs, and if you press a button, it displays that value in binary in a command terminal. My task that I was to do is be able to turn on and off an exter
  4. When running from Xilinx SDK (2018.3) I cannot get the trivial "Hello world output" from my Zybo Z7 board. However I do get the following messages: Connected to /dev/ttyUSB1 at 115200 Initializing... init:done Zybo Z7-20 Rev. B Demo Image This means that I in general can talk to the port that appears in /dev most often as /dev/ttyUSB1 but at times under different number, so the problem is different from just being unable to get serial port working. The port was initially not accessible due permissions but I have worked around by changing them with chmod. I also added myself to dial
  5. Hello, I was hoping to use your uC32 board to control 4 stepper motor drivers and to provide debug information over serial back to a PC. Unfortunately though the UART routine implemented in HardwareSerial only has a buffered RX implementation and not a buffered TX implementation. This means that at lower baud rates or with larger debug payloads the time to send the data into the serial line can take a rather long time. I looked around online and I can't find any pre-built libraries that implement an IRQ based UART TX Buffer on the PIC32 that would be compatible with the framewor
  6. Hello, I've been to set up a new Zybo board but I'm stuck with a serial port issue. I built my design with the provided board files in Vivado 2017.4. I tried a simple "hello world" in SDK but only got a bunch of unprintable characters. I have Tera Term set up for 115200, 8-bit, 1 stop, no parity. I tried Putty as well and had the same results. I verified the Vivado project is using UART1 MIO48..49. I intermittently can get the correct initialization message from the preloaded QSPI image, but most times it's unprintable characters. I also tried the pre-built Linux from the 2017.4
  7. Hey Guys, Im trying to connect HC05 Bluetooth module to my arty board. For this reason, first I implemented a serial module to read data, then I connect an HC05 module to the Arty board via Pmode connectors (Pmod jb connectors): set_property -dict {PACKAGE_PIN E15 IOSTANDARD LVCMOS33} [get_ports {UART_TX}]; set_property -dict {PACKAGE_PIN E16 IOSTANDARD LVCMOS33} [get_ports {UART_RX}]; about serial port, I am 00% sure it works properly with baud rate 9600 because I checked it first with a USB port serial communication and it works perfectly. the program is as follow: I
  8. MVS

    Arty Z7-20 Serial Com

    Hello everyone, I bought an Arty z7-20 board a month ago and my first project depends on serial communication. I made a program in VHDL but I could not know which are the pins that I should assign to the uart. From schematic file, i understand that i have to comunicate the fpga with the pins C5 and C8, for Tx and Rx, on the chip bank500, but.... i dont see what are the pins to enable uart in the .xdc master file to do this. A lot of thanks for share your experience! I leave here a simple design to taste the uart. The idea is that the fpga recive a data and send it back to a ter
  9. Hello, I have been using the WiFire board Rev D for data collection. A data stream is sent from the WiFire board to the windows computer over USB. Programming is via Microchip Blockset for Simulink: http://www.microchip.com/promo/mplab-device-blocks-for-simulink Downloadable code is auto-generated by Simulink (CTRL B to build) Program loading is via Pickit3, the .elf file is attached. This system was working fine, but suddenly the windows system can no longer see the com port. How can I fix this? Thanks, John ChipKit_WiFire_32MZ2048EFG100_Standalo
  10. Hello everybody, I am trying to send data from a Windows 10 computer to a Basys 3 board (Artix7 FPGA). I am using UART, and the data is entered via PuTTY, at 9600 bauds, with a stop bit and no parity. My VHDL module is based on a Finite State Machine (FSM), and two internal signals ensure the correct sampling (middle of the received bits). To test my VHDL module, I drive 8 LEDs on the board according to the received data. The problem : I manage to switch on / off the LEDs, but it doesn't seem to correspond to anyting (wrong ASCII code, or no difference between different k
  11. Is there anyone that has a direct link to download just the USB drivers for the Analog Discovery II (not part of Waveforms 2015)? We are having driver issues on Windows 10. We've tried every other solution that we could find on these forums. (Manually pointing to the drivers, rebooting, reinstalling waveforms including the Adept Runtime, etc.) We are looking for JUST the drivers that someone from tech support can send us while trying to fix this problem.
  12. Hello, just plugged in my new Zybo Z7 471-015 but cannot connect to serial port. It works on the Zybo. PROG UART is connected to USB PC BSP stdin, stdout is set to ps7_uart_1 I have no other application open that is accessing the serial ports to make sure I dis- and reconnected the Zybo Z7, still doesn't appear on the port list Zybo Z7 appears as USB Serial Converter A and B in the device mngr restarted PC tried another USB port replaced USB cable, both are data cables JP6 is set to USB JP5 is set to JTAG drivers had been insta
  13. In my project, I need to use the UART ports on the NexysVideo board to transmit signals to a Raspberry. I defined 2 signals Rx_raspi as an in std_logic and Tx_raspi as an out std_logic, and in the XDC file, they are defined as: set_property -dict { PACKAGE_PIN AA19 IOSTANDARD LVCMOS33 } [get_ports Rx_raspi ]; set_property -dict { PACKAGE_PIN V18 IOSTANDARD LVCMOS33 } [get_ports Tx_raspi ]; while implementing, errors show that no ports matched. [Vivado 12-584] No ports matched 'Tx_raspi'. [Vivado 12-584] No ports matched 'Rx_raspi'. [Common 17-55] 'set_property
  14. Hi, I just bought the Analog Discovery 2 and I was looking for a way to generate serial data(uart, spi) to test my projects through the digital output pins. I was wandering since there is a logic analyser and interpreters for serial communication data. Thanks for you help
  15. Hi! I've got an ARTY board and I find the USB connection incredible useful, as it allows to use only one connection to program the FPGA through JTAG while simultaneously act as an USB to serial converter. So, I also bought a JTAG-SMT2-NC to fit into a custom board and it's a very convenient way to program my FPGA, but... is it possible for it to act as the module that fits on the ARTY, and make it be recognized by the PC as a USB-serial converter, using its GPIO pins as the interface with the FPGA, as the ARTY does? That would be really great, but I think it's not possibl
  16. swarnava

    Using PMOD Modules

    Hi, I'm using a Deca MAX 10 FPGA evaluation kit. I want to transfer the data from my evaluation kit to my system and vice-versa, but the Kit only has USB OTG but no UART module so I'm thinking of connecting a PMOD USB to UART module to the GPIO pins in my kit for making the transfer possible. Is it possible to convert the GPIO pins to the PMOD pins in order to connect the PMOD module ? Can anyone please help me in this ? Thanks, Swarnava Pramanik
  17. How to setup diligent usb cable for Xilinx Spartan-3 starter kit on CentOS 6? I have already installed ISE WebPack, digilent.adept.runtime, digilent.adept.utilities, libCseDigilent, fxload, and some other packages. lsusb shows: [[email protected] home]$ lsusb Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 006: ID 03fd:000d Xilinx, Inc. but djtgcfg shows nothing: sudo djtgcfg enum No devices found iMPACT log: Welcome to iMPACT iMPACT Version: 14.7 Project: /home/lukasz/VHDL/QLIW//auto_project.ipf created. // *** BATCH CMD : setMode -b
  18. I was looking at the PmodUSBUART, PmodRS232, PmodRS232X and the Digilent Pmod Interface specification and need some clarifications The PmodUSBUART and PmodRS232X uses the Type 4 Pinout and the PmodRS232 uses the Type 3 Pinout. The table pinout on the Pmod Interface Specification is for the Host for Type 3 and Type 4 UARTs. Can someone verify that my assumptions are ok?
  19. asmao

    PMOD as GPIO

    Hello, I'm currently using a Nexys 4 board and I would like to serially output and receive data. I was wondering if this could be done through a PMOD port? If so, how? Inside of my HDL design (I'm using Vivado 2014.2 and my HDL is in verilog) I'm asserting various PMOD ports yet whenever I try to measure the outputs I got nothing. My HDL looks something like this:assign JC1 = 1, JC2 = 0; Both JC1 and JC2 measure to 0. I've also tried the alternative names listed in the schematics (K2 and E7) as well as other PMOD interfaces. If I can't use the PMOD ports in this fashion, I was hopin