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  1. chandu.kurapati

    Question Related to the typecasting from bool to char

    Hello, What happens when we typecast the bool variable to char and vice versa char variable to bool?? Anyone please explain with example. Thanks & Regards, CHandu.K
  2. chandu.kurapati

    How to interface EMV chip card (smart card) with micro controller?

    Re: How to interface EMV chip card(smart card) with micro controller? Hello again, Now i understood the EVM commands and communication protocol interface between micro controller and EVM chip card. But basically my application is smart card Interceptor and the design is prototype device(micro...
  3. chandu.kurapati

    How to interface EMV chip card (smart card) with micro controller?

    How to interface EMV chip card(smart card) with micro controller? Hello, I am new to smart card technology and don't how to access the smart card information, i have gone through the basics and got the initial idea it's a ISO/IEC 7816 format. I am going to use ATXMEGA32A4U micro controller...
  4. chandu.kurapati

    Looking for at45db641e 64 bit serial flash sample codes

    Looking for at45db641e 64 mbit serial flash sample code Hello, AT45DB641E is a 64 mbit serial flash and it supports the SPI protocol to erase, read and write operations. I need to interface AT45DB641E with the micro controller. Here i am unable to understand how to start with the coding...
  5. chandu.kurapati

    Idea for creating unit testing environment for embedded project with python script;

    Hello, First of all thank you very much for reading my concern... I have developed a embedded application(platform is quite stable and developed in 'C') and done with the unit testing(with hardware) and documented the test cases also, this approach is quite good(for small application). But in...
  6. chandu.kurapati

    [SOLVED] Need optimized code for digital stability check logic

    Hi andre_teprom, can you please look into it..
  7. chandu.kurapati

    [SOLVED] Need optimized code for digital stability check logic

    Hi andre_teprom, Sorry, can you elaborate more. I am unable to understand that..
  8. chandu.kurapati

    [SOLVED] Need optimized code for digital stability check logic

    Hi SunnySKyguy, It's not related to IO driver, pins are already stable. But i should wait up to count time to trigger application for that time pins shouldn't be released, should be in depressed. It's related to application development not driver functionality. - - - Updated - - - Hi...
  9. chandu.kurapati

    [SOLVED] Need optimized code for digital stability check logic

    Hi, /* Global values */ u32 Switch1Stable = 0; u32 Switch2Stable = 0; /* Function to check for the switch stability*/ /* Switch1 & Switch2 values passed to this function as per switch status */ 1---->depressed 0----->released /* This function is called for every 1 ms */ static void...
  10. chandu.kurapati

    [SOLVED] why ground reference is required?

    Hello, Why ground reference is required? if i connect with out ground reference what would be happen??
  11. chandu.kurapati

    [SOLVED] why ground reference is required?

    Hello, In circuit for DC power supply, ground reference is required, is it necessary? with out ground reference what will be happen?
  12. chandu.kurapati

    Alternative current(AC) rate of reversal

    How US power supply 60hz, reversing 120 times for second? How it is? for example India power supply 230hz then how many times reversing in second?
  13. chandu.kurapati

    Peripherals and Core peripherals

    Hi K Srinivas Pavan Kumar, First mention what are the peripherals and core peripherals?? I think there no concept like that.
  14. chandu.kurapati

    Boot Loader for PIC16LF1718

    Hi Vidisha, How BootLoader can check for programmed new firmware? How BootLoader is self programmable with out using any external programmer? Can you please explain in detail??
  15. chandu.kurapati

    Boot Loader for PIC16LF1718

    Hi Vidisha, Can you please explain about what is the Boot Loader and why you need it??
  16. chandu.kurapati

    [General] TWO RTC- DS1307 Interfacing with any microcontroller Using I2c

    Hi cnandha19, The address of slave depends on address lines(hardware), go through DS1307 datasheet. Observe the pinning diagram then you come to know about it. In software also can configure different address for different slaves on the same bus. Let me know if you need more information..
  17. chandu.kurapati

    [PIC] can we call EEPROM write function in ISR routine

    Hi akshaybhavsar, It is impossible to run the application with out idling the controller. Better post the source code...
  18. chandu.kurapati

    [PIC] can we call EEPROM write function in ISR routine

    Hi akshaybhavsar, With out using loop, how you are running application? From your statement when ever you start rotating motor, it will invoke the interrupt. is it correct?? But after code terminated in the main loop, how controller is idling for interrupt?? There should be controller in idle...
  19. chandu.kurapati

    SPI trouble in MOSI pin

    Hi BiNa2605, How you know the reason for SPI transmission failure?? How you identify it with RFID reader?? How you are sending the values to the reader GUI, with which communication.
  20. chandu.kurapati

    USB2.0 interfacing with LPC2148 and PC

    Hi, I hope you can change the name of the device in device descriptor. I think in device descriptor specific field is allocated for it. Let me know if you want more info..

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