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Recent content by sgreen

  1. sgreen

    Serial control anlog to digital converter

    I did this. If I got pulse in CS there is no o/p. otherwise all time SDO pin shows 0 level. I have used clk 2.048MHz according to data sheet. Still it doesn't work. How can I ensure data conversion is possible using TLC548. My schematic is here:
  2. sgreen

    Serial control anlog to digital converter

    Pardon me. The circuit is given here:
  3. sgreen

    Serial control anlog to digital converter

    I am practicing with TLC548 analog to digital converter. First I wanted to simulate in proteus. But it doesn't work. I take sine wave as analog in, Ref+=5V,Ref-=-5V. internal clock 4MHz, CS= ground. No output found. What's wrong ?
  4. sgreen

    [SOLVED] Pin state on Tx/Rx pin while USART communication

    Sending speed is so first that I can't understand. Am I right? And for this reason always Multimetre result is 5V always.
  5. sgreen

    [SOLVED] Pin state on Tx/Rx pin while USART communication

    My system sends data through USART every 10ms. And my Tx pin is always 5.07V. Is it possible? It will be better for me if you provide me article/link which shows transmission characteristics of usart Tx/ RX pin.
  6. sgreen

    [SOLVED] Pin state on Tx/Rx pin while USART communication

    In case of serial communication(using ATmega32A) first I have to initialize USART and do code for serial Tx/Rx. In hardware,is Tx/Rx pin always in 5V or logic1?
  7. sgreen

    [SOLVED] Interrupt driven USART Initialization in AVR

    Ok, I get the point. What kind of problems will happen if I use sei() before usart initialization?
  8. sgreen

    [SOLVED] Interrupt driven USART Initialization in AVR

    It is from ATmega32A datasheet page no.153 under the topics usart initialization. My question is why we have to clear global interrupt while initialization.@jayanth.devarayanadurga
  9. sgreen

    [SOLVED] Interrupt driven USART Initialization in AVR

    My quetion is why we have to choose this. If U know, provide reason in more detail
  10. sgreen

    [SOLVED] Interrupt driven USART Initialization in AVR

    Hi, "For interrupt driven USART operation, the Global Interrupt Flag should be cleared (and interrupts globally disabled) when doing the initialization." I don't understand the topics why it is necessary to clear interrupt flag. If anyone deal with this matter pls provide the clarification and...
  11. sgreen

    Using Interrupts in AVR (Atmega 16/32)

    Introduction to AVR interrupt:https://www.newbiehack.com/IntroductiontoInterrupts.aspx You may use the above link.
  12. sgreen

    Variable power supply using 9V batteries in series

    After raising to 36 volt u can use LM317 Regulator ic. Using this u can vary the voltage from 1.2v to 36V.See the datasheet where u can find the typical application.
  13. sgreen

    speaker operation problem in proteus

    If i use output to sample using Microcontroller, does the circuit work? Mentionable as TL082/TL072 is a good voltage amplifier.
  14. sgreen

    speaker operation problem in proteus

    Which op-amp I should use to provide enough current.
  15. sgreen

    Capture Audio signal

    I have download LTspiceIV from https://www.softpedia.com/dyn-postdownload.php?p=212452&t=0&i=1. Am I right @Audioguru? If not please provide exact link for download your stated software. - - - Updated - - - I have download LTspiceIV from...
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