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Recent content by vysakhpillai

  1. V

    I2C bootloader for PIC

    is there an I2C booloader available for PIC18F2550? I could find some Application notes from microchip for other 18F parts but not 2550 :(
  2. V

    USB and UPnP Tutorials

    Hi All, As my first attempt to technical writing, I have put up 3 in-depth tutorials (on USB 2.0, USB 3.0 and UPnP device architecture) at https://embeddedinn.wordpress.com/tutorials/ . Please go through it and provide your comments. Cheers
  3. V

    RTOS development for PIC

    there is another RTOS for PIC which is open source at OSA : Documentation [PIC24] .
  4. V

    USB CDC with vb.net convert ascii value to char

    are you receiving all the characters in the PIC? if so frame it to a NULL ('/0') terminated array (which is a string) and use it in the LCD function
  5. V

    Image subtraction in Matlab

    can u please give more info on the issue
  6. V

    C code to implement transfer function?

    if you have acess to matlab, you can try generating a standalone c code from simulink for the same. . .
  7. V

    A weird situation for me. I do not know is it a problem or not!

    which PIC are you using? and what is the version of your proteus?
  8. V

    We can call functions from ISR or not?

    Functions can be called if they are of fixed latency and re-entrance should be kept in mind.
  9. V

    microproceesor datapath

    can u please explain the problem further
  10. V

    Float variables inside interrupts

    for ultra timing critical applications, there can be minor slacks if u access floating point variables inside interrupts. especially if the FPU is implimented in software. However, corruption cannot occur as a result of this as luben111 suggested
  11. V

    How can I control the serial port ?

    write a C program that transmits the commands for each of the motor for each key press. i.e: if you press up, transmit commands over RS232 for the 4 motors in the format suggested by andre_teprom. From the microcontroller, take corresponding actions for the motor control. There are many free...
  12. V

    [Moved] Choosing a embedded linux board

    Re: Choosing a embedded linux board how about beagle board?
  13. V

    Help in PIC programming during "mydata==a" is running

    Re: PIC programming U could hook up the uc to the PC using serial port. Depends on the level of control u require.
  14. V

    Help in USART Terminal, MikroC and Proteus

    have u set the baud rates correctly?
  15. V

    Help interfacing a 16f876A with a USB GSM mobile

    for uart connection try this

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