Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

Recent content by plasmaphase

  1. P

    Bidirectional mux in VHDL

    It is obvious to me now that you have no idea what you're talking about. I'll assume this is not possible until someone has proof otherwise.
  2. P

    Bidirectional mux in VHDL

    Here's a visual description of what I'm trying to figure out. Again, there are 2 controllers, the connections of which may be input, may be output at any given moment, but we are guaranteed never to have both controllers talking at the same time (exclusivity between controllers). The line to...
  3. P

    Bidirectional mux in VHDL

    Care to share how you think this can be done?
  4. P

    Bidirectional mux in VHDL

    Correct, that's exactly what I need to do. The question is how is this done. My initial hypothesis is that this is not possible in VHDL when you want to do it with PORTs of type INOUT.
  5. P

    Bidirectional mux in VHDL

    I have the following scenario: I have a single device that I want to control with 2 different controllers. Only one controller will have access to the device at any given moment. This device uses SPI. That is the basis and general statement of my problem. My real problem is this...SPI uses...
  6. P

    lan91c111 initialization

    lan91c111 registers I ended up getting the initialization of the part working and have it setup to auto-negotiate. There were a few problems, one being endianness. I am able to transmit packets, but am finding that there are "jumbled" packets being sent out in between good packets. I'm not...
  7. P

    lan91c111 initialization

    I've been using signaltap, which is altera's embedded signal "scope" to look at signals. I agree with you that it's not obvious, but if the spec is accurate (which I've already found slight discrepancies between spec and driver c code) it shouldn't be crazy. I'll continue to look at the driver...
  8. P

    lan91c111 initialization

    lan91c111 I am attempting a full VHDL based driver for the lan91c111 part. I've gotten pretty far along and have written a state machine to read/write registers. As I progress through the initialization requirements of the part, I realized that I have to "emulate" SPI through a register (Bank...
See more

Part and Inventory Search

Back
Top