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Recent content by ama_trig

  1. ama_trig

    CPU Architecture Review

    Hi everyone I was assigned a project by a professor at my university, about reviewing modern CPU architecture & pipelines. specially the case scenario where intel's Pentium 3(e.g. 800Mhz) was far better than its successor generation, Pentium 4 with even being clocked higher , which cause P3 to...
  2. ama_trig

    Design a pcb without a schematic

    wow, that was so easy 'configure physical nets' Thank you so much, right now I've disabled obstacle avoidance, and use interactive router as a simple router. just wondering if it may be possible to create a new net list, then assign all pins to that by just clicking on pins or shift+selecting...
  3. ama_trig

    Design a pcb without a schematic

    Design a pcb without a schematic in Altium Well I'm new to Altium, and looking for a way to design a pcb without a schematic to pcb capture, in simple case's I prefer directly working on a footprint, it seems interactive design works only when net list exists. Should I turn off some feature...
  4. ama_trig

    Atmega Bootloader References

    @alexan_e Thank you so much for the fast reply. This is a great project. V-USB is an awsome thing! But since I'm doing this wireless, there is no way! and its a lot easier to work out a UART and even if this was no problem, then 2kb of flash is gone, hardware is very limited to specific...
  5. ama_trig

    Atmega Bootloader References

    Anyone care to share some good bootloaders? I'm looking mostly for atmega8 / atmega16 I found many ... These two seems the most reliable ones! How to Build a Robot Tutorial - Society of Robots MegaLoad U | Beta tester needed « MicroSyl | MCU Electronics projects Anyway I haven't tested them, but...
  6. ama_trig

    How to implement vias pads around this module?

    @andre_teprom: Thanks for the reply. The problem I'm facing is not the using vias pad itself, but the implementation around the RF module for antenna, It seems that vias acts as exit point of signals, which then would stop signals from resonating, or stops feed backing signals energy to module's...
  7. ama_trig

    How to implement vias pads around this module?

    According to Aubtm-22 Document **broken link removed** 1)If one sided pcb is to be used, Is vias needed ? if so, should I ground them? an how to implement it around the antenna? 2)If no plane is used under the module, is vias still a requirement? 3)copper area should be at least 20x15mm to...
  8. ama_trig

    Locking for disclaimer samples

    I was looking for some total disclaimer, which frees the author/designer of a document (a designed circuit) from any sort of trouble, and responsibility and holds the person using it responsible which even best of the best lawyers can not do anything about it. Does such a thing exist? is it...
  9. ama_trig

    heart beat counter,jus started,need help..

    sorry the post was like this :D I would graph the signal, amplitude, ... then decide. Graphing amplitude will give you good ideas on how for example moving hands may generate noise, How strong its going to be, How effective the filter would work and how much noise you might be faced with, ...
  10. ama_trig

    heart beat counter,jus started,need help..

    Im not sure, but I think the heart beats at 2-4 Hz, while the sound generated from it, is completely hearable via ear, thus making it hearable to microphone too! record the sound via microphone, decide it your self, even it is so simple to check the recorded signal for measuring the heartbeat...
  11. ama_trig

    How digital pen works, the ones without tablet

    or this one **broken link removed** the ones that work on any surface, is it possible to diy it?
  12. ama_trig

    how to count words (English and Chinese together) in excel ?

    I don't know it this could be done directly via cell, but with VBA it is definitely possible. Process A)Break the cell into string array, containing your all word list. like this: wordSplitedarray(0) = "你當時見到嘅景象係點樣" wordSplitedarray(1) = "shadow" B) [ excel work out] run a code function, to...
  13. ama_trig

    GUI for Image processing

    depends on what you want to do, how fast you want it to be, how complicated it is going to be, how much process is needed. you can use matlab, c++, c#, even visual basic, ... almost every language. I think CV is number 1 in c++. What you want to do should work in c++ as you said . this would...
  14. ama_trig

    C# Coding - Delegate and Event Setup

    Class A { ButtonClick() { //SomeVariable //SomeCode ***According to SomeVariable, set callback of Class B's Method_1 to *** UpdataA Method or UpdateB Method or anything else defined here ***(not written in Method_1 code block, so it can be changed from here) Something like...
  15. ama_trig

    LPC2378 vs AT91SAM7X256 for a starter

    I've read their data sheet, each one seems has its own specification, but in overall: Please compare these two, and mention difference's, which one is better for a starter and why? and what about in advance use, available samples, ...?

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