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Recent content by jhallows

  1. jhallows

    Learn OrCAD (tutorals/videos/ book titles)

    The following link has online lecture of using Orcad. See the 2008 and 2007 class for the videos. https://www.cmax.net/es.html I don't know what version of Orcad you are using, but if you are using and old version the video should be okay.
  2. jhallows

    POST CARD MOTHERBOARD TEST CARD

    build post test card You can take the 7 segment decoder part from from this link: P.O.S.T. Diagnostics Card I really don't want to spell it out, since it sounds like you are doing a school project. In fact it would be easier to buy a Motherboard POST card if you just need one to use. The...
  3. jhallows

    POST CARD MOTHERBOARD TEST CARD

    motherboard post card I don't really think you need a microcontroller. The Seven Segment decoder can be done in Logic.
  4. jhallows

    POST CARD MOTHERBOARD TEST CARD

    post card motherboard All debug codes go to port 80. The following schematic is for a PCI post card using TTL chips. Convert it to your favorite CPLD using VHDL or Verilog. One note: It doesn't use a 7-segment Display. You have to add that part which isn't that card. For more insight check...
  5. jhallows

    FYI: OrCAD library sharing group

    orcad libraries download More like the other way around. Orcad PCB Designer, can use Allegro libraries, however, Orcad Layout cannot. You can migrate from Orcad Layout to Orcad PCB Designer and hence you can convert some of the footprints to Allegro, (the footprints used in your design would...
  6. jhallows

    no PSpice Template for Hierarchical block

    no pspice template for Pspice cannot simulate VHDL Hierarchical blocks. If you are doing digital with Orcad you have to simulate with Cadence LDV, (now called Cadence IUS). Basically you cannot do mix simulation of VHDL and Pspice. Only simulate VHDL with the above mentioned tools or spice...
  7. jhallows

    Want to make a FPGA board

    It isn't Orcad that is being discontinued. It's support for Orcad Layout. You are suppose to move to Orcad PCB designer, (simple version of Cadence Allegro), to make PC boards.
  8. jhallows

    VHDL design to a ORCAD PSPICE Circuit how to?

    matlab slps vhdl The question you asked about is mixed simulation, (Analog and Digital simulation with Pspice). If you just want to do Digital, you could with Orcad but with additional products, (NC-VHDL, Modelsim, etc.). It doesn't make sense since you still need Quartus-II or Xilinx...
  9. jhallows

    VHDL design to a ORCAD PSPICE Circuit how to?

    pspice vhdl Okay sorry to burst your bubble but Pspice doesn't support VHDL simulation directly. Orcad may support this future, but not at this time. Two Solutions I could suggest is; Use ATMEL Wincupl and make a .jed and simulate your PWM with a PSPICE GAL device or you may look at SLPS for...
  10. jhallows

    format of JEDEC file ?

    The standard is called "STANDARD DATA TRANSFER FORMAT BETWEEN DATA PREPARATION SYSTEM AND PROGRAMMABLE LOGIC DEVICE PROGRAMMER" and can be found at: https://www.jedec.org/download/search/jesd3c.pdf
  11. jhallows

    PCB Fabrication for Designers

    The article is already posted on the board:
  12. jhallows

    how to build your own motherboard?

    how to make motherboards It depends what is wrong with them and if you have the proper tools. For the chipsets you can probably swap and reball the BGA's. For most other parts you can probably buy new ones. PC motherboards aren't really worth fixing. A better choice would be Laptop...
  13. jhallows

    how to build your own motherboard?

    how to build motherboard A more Updated Link to wire wrap a motherboard would be: **broken link removed**. The 80486 is probably the last generation you could get by with wire wrapping, (Lower clock than 33mhz that is). Even so the original message is so old that I doubt the author cares...
  14. jhallows

    a hobbyist pci post reader project

    What software are you talking about? Once you write the HEX value to port 80 the POST card should display the value.
  15. jhallows

    How to use Atmel chips in OrCAD ?

    orcad/pld No. You would use a thrid party utility to compile your equations to a jed. If you are using simple PAL's/GAL's, use http://elm-chan.org/fsw/fgal.zip Really Orcad FPGA are for legacy designs. You would require third party tools to use Orcad FPGA and I don't think Atmel is...

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