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Recent content by trav1s

  1. trav1s

    Arm 7 and arm 9 DIFFERENCE

    Hi, he is asking what the difference is in software for the ARM7T and ARM9. What he means to ask is what is the difference in the instruction set. This thread may already answer your question: https://www.edaboard.com/threads/3901/
  2. trav1s

    [SOLVED] What is the World's Lowest Power 8-bit MCU?

    Yeah, the reason I need 8-bit is because we've implemented an ultra-low-power 8-bit MCU and we need to know how it compares to the lowest power MCUs since we would ultimately like to publish our results. Ours is certainly lower power than the MSP430, but directly comparing an 8-bit MCU to an...
  3. trav1s

    [SOLVED] What is the World's Lowest Power 8-bit MCU?

    I am interested in finding the specifications of the world's lowest power 8-bit microcontroller(s). There are no particular limitations on the clock speed, memory size, GPIO, peripherals, etc. since I am just looking for information for comparison. Please forward the titles or direct links to...
  4. trav1s

    [SOLVED] Rectilinear Cut in Cadence Encounter

    During floor-planning, the following command will create an "E" shaped routing blockage on all layers: createRouteBlk -layer all -polygon 0 0 0 500 400 500 400 400 100 400 100 300 400 300 400 200 100 200 100 100 400 100 400 0 Then when you place and route your design it will be in the shape of...
  5. trav1s

    Synthesis without inverters with RTL compiler

    I'm sorry, I don't totally understand why using a nand2 as an inverter is not possible in your technology. Or you could use some other cell to serve the inverter funtion. You said (A+B') is available. All you would need to do is create a copy of that cell with the A term tied to logical low...
  6. trav1s

    Synthesis without inverters with RTL compiler

    That doesn't work either, I just tried it. Setting a cell to don't use is just the same as not having in the library at all.
  7. trav1s

    Synthesis without inverters with RTL compiler

    In Cadence SoC Encounter it is permissible to have a cell defined in the Liberty timing file, even though there is no physical information in the library if the cell is not used in the design netlist. In theory, all three solutions will result in a post-synthesis netlist which contains no...
  8. trav1s

    Synthesis without inverters with RTL compiler

    I assumed he was starting with some sort of standard cell library. If thats not the case, its quite easy to make a dummy inverter definition in order to use solution 1 or 2.
  9. trav1s

    Synthesis without inverters with RTL compiler

    You have not found some design that is invalid without an inverter. NAND2 and NOR2 (and others) are functionally complete. Its just that inverters are a very basic building block of a library and designs may suffer heavy penalties without them. The lack of an inverter is and should be a warning...
  10. trav1s

    Voice extraction from a song

    Yes, I agree with phongphanp. Because of the complexity of the signal characteristics in a song, neural networks would be the easiest solution. You would have to extensively train your neural network on each instrument present in the recording, including the singers voice. The NN would then have...
  11. trav1s

    how to reduce cell leakage power in large design

    You should also weight leakage power optimization more heavily in your synthesis and automated layout design tools. All tools have to make trade-offs between dynamic power, leakage power and chip speed. Make sure you read the manuals about the low power features available with your tools. Also...
  12. trav1s

    ESD Protection for Microcontrollers

    What type of memory is your program stored on? Is it reliable?
  13. trav1s

    LEF file loading error by Encounter 8.x

    nnmate, do not modify the LEF as the others suggest. Encounter gives this error "MANUFACTURINGGRID statement was defined before UNITS" when you try to load a tech LEF more than once in one Encounter session. Its not a problem with the LEF, its a problem with how you're loading the LEF. Unless...
  14. trav1s

    [Moved] Code for Gender Recognition using Auto-Correlation in Matlab

    Re: Code for Gender Recognition using Auto-Correlation in Matlab Ah ok I discovered if I just hum instead of talking it works much better. Maybe my natural speech just has too much pitch-modulation for it to handle.
  15. trav1s

    [SOLVED] Setup time slack and maximum clock frequency

    Thanks for the suggestions so far. Some more info- the timing related info I've given is based on a 3-corner analysis (ff, tt, ss), and I am using SoC Encounter. From the documentation: So that's right, right? For setup analysis you want a longer delay, and opposite for hold analysis. I...

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