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Found 6 results

  1. Hi Digilent staff, and fellow forum members, Just wondering if you guys had considered making a USB HID -> PS/2 PMOD board? I was thinking of something like the circuit on the Nexys 3,4 boards which uses a PIC to convert a USB keyboard to PS/2 compatible signals. Would be handy for using newer USB keyboards/mice on PMOD socket equipped FPGA boards. PS/2 devices are becoming harder to find brand new. I (for one) would be interested in a few. Kind regards, Leslie
  2. Hi, I recently discovered that the wrong scan codes are sent for certain keys. This is tested with my own PS2 keyboard controller, and the same behaviour is present with the official demo: https://reference.digilentinc.com/learn/programmable-logic/tutorials/nexys-4-ddr-keyboard-demo/start I have tested two keyboards: One Logitech K120, and one Microsoft comfort curve 3000. The following behaviour is exhibited: Left arrow set 2 scancode should be: E0 6B / E0 F0 6B. Actual: 6B / F0 6B Up arrow set 2 scancode should be: E0 75 / E0 F0 75. Actual: 75 / F0 75 Down arrow set
  3. Hi everyone any idea how I can set the PS2 power jumper to 5V ? , I have the Genesys virtex-5 board. Thank you
  4. Hi, I created a VHDL description to work with the PS2 interface of a Nexys-3 board, but I'm having a problem with the arrow keys. The right arrow key - code E0 74 - works perfectly, but strangely the other three - codes E0 75, E0 6B and E0 72 - do not! I tested with the Ctrl key - code E0 14 - and with the Alt GR - code E0 11 - and they also work perfectly. Since I was unable to understand the problem, I tried with another board - a Basys-3 - and with Vivado. The behavior was exactly the same. Then I picked up an old Spartan-3E board with a true PS2 connector and the whole arrow keys and
  5. laltarac

    Basys2 PS/2 Keyboard

    Hello. Im working on a project that requires a ps2 keyboard to communicate to the Basys2 board. Does any one have any good links that might help me get started with this. Or, maybe would someone be able to post their Verilog code , if they've done it ? It would be much appreciated Thanks Liam
  6. The PS2 Keyboard/Mouse PMOD Connector has incorrect silk screen. The labels for VE and Gnd are backwards. VE is really GND, and GND is really VE. This is the +5V external input to power mice that run off of 5V (which almost all PS/2 mice actually do run off of 5V). Swapping VE and Gnd caused me to burn my mouse. It drew about a half-amp of current and immediately smelled that lovely smell of burning electrical components. I had to purchase a second PS/2 mouse once I found out the problem. If I connect the external power opposite of the silkscreen I am able to communicate with the mouse.