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Type: Posts; User: stackprogramer

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  1. Closed: Warning::How can i calibrate HackRF one for frequency correction in DVB-T receiving?

    In SDR we have problem in receiving with digital modulation. this post is created for discuss about it.

    Warning::How can i calibrate HackRF one for frequency correction in DVB-T receiving?(Bad...
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    Closed: Power 4G mobile that can transmit?

    i know gsm 2g mobile is about 1-2 watt. i read it in some book communication,i had a question is a good reference that discuss and mention typical power 3G and 4G a mobile in different rate download...
  3. [SOLVED]Closed: How we can Decide for set BB gain,IF gain,RF gain???

    Hello my friend.I had a good Transceiver Hackrf one. i know some about transceiver . i know we can categorize Transceiver to three stage:

    BaseBand
    Intermediate Band
    Radio Band
    ...
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    [SOLVED]Closed: Re: error in programming at91sam7

    finally i solved it after months ,i should use jlink v 6.00
    i before used newest version jlink.
    now every thing is ok. thank you
    see video on youtube
    https://www.youtube.com/watch?v=RB_xBJVZtj4...
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    [SOLVED]Closed: error in programming at91sam7

    when i want to program a at91sam7s64,it can connect to micro but when i erase it returns errors:



    134619
    how can solve it?
  6. [SOLVED]Closed: Re: for desgin high frequency RF PCB which rule we should consider in altium?

    thanks very much for guide.
    best regard stackprogramer
  7. [SOLVED]Closed: Re: for desgin high frequency RF PCB which rule we should consider in altium?

    thank you, please answer in two section: high frequency RF and high frequency Digital Circuit
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    Closed: Re: best all optical logic gate?

    this article reviewed all thing about all optical gate
    https://www.hindawi.com/journals/aot/2014/275083/
  9. [SOLVED]Closed: for desgin high frequency RF PCB which rule we should consider in altium?

    i want to start a design a pcb high frequency for education.
    for design high frequency RF PCB which rule we should consider in altium?
    please specialist guide me? is there good reference for it?...
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    Closed: best all optical logic gate?

    hi,i want to study some about all optical logic gate.i am familiar with SOA,MZI,Coupler some,
    my question is best all optical logic gate design how much is their speed?
    which structure in they is...
  11. [SOLVED]Closed: Re: how can i read data from vs1003 in pic32?

    finally i translated code avr vs1003 to pic32,it worked 1 month ago.
    thanks friends
  12. [SOLVED]Closed: how can i read data from vs1003 in pic32?

    i had a vs1003 module,my microcontroller is pic32 pic32mx795f512l.
    my question is how can i read data from spi bus.
    is there a ready source for it,please help me.
    this is data sheet...
  13. [SOLVED]Closed: Re: why in keil General Purpose Input/Output Port A (GPIOA) Dialog i can not see??

    it is solved in http://www.keil.com/forum/61587/#/msg201328
    http://www.keil.com/support/docs/814.htm
    best regards stackprogramer

    - - - Updated - - -
    ...
  14. [SOLVED]Closed: why in keil General Purpose Input/Output Port A (GPIOA) Dialog i can not see??

    hi
    in simulator debug:
    when i uses std library for st this General Purpose Input/Output Port A (GPIOA) Dialog
    is there in peripherals menu keil.please see http://www.keil.com/dd/vtr/4148/7679.htm...
  15. [SOLVED]Closed: how i can create multiple targets build for arm project in keil???

    hi my friend ,today i downloaded a new arm project on github.i saw a new valuable point.
    it has multiple project build.please see image

    130413

    how can i do this work for my project.
  16. [SOLVED]Closed: Re: how i can change cmsis arm library for creating arm program for new my board ?

    this snapshot of it

    http://www.mediafire.com/convkey/4ac0/36hkk5dc3x37j67zg.jpg
  17. [SOLVED]Closed: Re: how i can change cmsis arm library for creating arm program for new my board ?

    finally i found solution.in cmsis library i add core and classic cube library in RTE_Device.h(STM32Cube HAL:RCC)
    it has wizard for configuration pins....

    other way using stm32cubmex .it is a easy...
  18. [SOLVED]Closed: how i can change cmsis arm library for creating arm program for new my board ?

    i uses cmsis for keil for programming.you can see image :

    http://www.mediafire.com/convkey/2b42/yqywd9y62k8w9cuzg.jpg
    now this is configured for STM32F4 Discovery.

    my question is how i can...
  19. Closed: whats means really testpoint rule in altium desinger?

    hi i studied about TestPoint Rule in PCB.
    https://techdocs.altium.com/display/ADOH/Testpoint+System
    i am confused...
    whats application and object using it?
    can any guide me?
  20. Closed: Re: why Autoplacement don't work in Altium designer?

    after examine all below menus works :
    arrange with rectangle
    arrange with room
    arrange with outside
    shove
    reposition selected component
    swap component

    but this menu doesn't work
    auto...
  21. [SOLVED]Closed: Re: why in customquery i have errors not valid?

    for solving error we should use () for element ,now it works
  22. Closed: Re: why Autoplacement don't work in Altium designer?

    thanks
    This one is really talking
  23. Closed: Re: why Autoplacement don't work in Altium designer?

    i tested it 10 times,you can see in video
    i even set rule placement
    i know that autoplace is garbage
    but i want to only know why it doesn't work for simple circuit in my...
  24. Closed: Re: why Autoplacement don't work in Altium designer?

    i did it
    please see video
    https://www.youtube.com/watch?v=-LVCFoQe2XI
    it doesn't work any
  25. Closed: Re: why Autoplacement don't work in Altium designer?

    i examine it when i clicked on autoplacer in altuim2016 it is idle.
    why my PCB board doesn't work?it is strange....
    i even created new pcb and schematics!!
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