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Type: Posts; User: electronicsman

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  1. Closed: ADC Sampling and Conversion Sequence

    I am not understanding the following concept of ADC sampling and conversion using external trigger. The micro i am referring to is dspic33EP256MC506. There is an external conversion trigger section...
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    Closed: Re: Power On Self Test in Automotive

    My other thinking for power on self tests is like if the vehicle is gone for maintenance and if the fault is rectified then he would do a power On off cycle to see if the faults are gone.
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    Closed: Power On Self Test in Automotive

    I have this doubt generally in automotive field there are Power On self tests done like for example Memory test and other critical tests. But my doubt is this tests can fail during run time as well,...
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    Closed: Applications I can work On

    I am working on a kind of self project to driver a motor using the micro chip kit. Now i want to make a kind of complete application solution for commercial purpose. What are the applications i can...
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    Closed: Re: PC based Oscilloscopes

    I am sorry i mean to say i want to see the waveform which may be at 100MHz which is more than the PC based oscilloscope capability. How to overcome this?
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    Closed: PC based Oscilloscopes

    I am about to buy a PC based oscilloscope to save money. I tried nscope but it is not available to buy in Amazon, i am trying Pico 2000 series. But as the frequency increases the cost increases. I am...
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    Closed: Re: Internal Oscillator Sources

    Thank you for the reply. Few more clarifications once the micro starts let us say it has to read Register "R" to decide to select internal or external oscillator. During this time it runs on which...
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    Closed: Internal Oscillator Sources

    I am going through the dsPIC33 family datasheet oscillator section and the first line states
    The dsPIC33/PIC24 family oscillator system includes these characteristics:
    • External and internal...
  9. Closed: Why so many packages for Microcontrollers

    I see that in general all the micro controllers (dspic33ep256) come with different pins and separate packages even if it is the same controller. Why do they prepare so many variants?
  10. Closed: Problem understanding Signed Fractional Format

    I am bit confused with application note http://ww1.microchip.com/downloads/en/AppNotes/01017A.pdf

    regarding the signed fraction format, I see in the document -1.0 6000 RPM Reverse and 0.99997 6000...
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    Closed: Sequence of Operations

    How important is power-up sequence and power-down sequence in Electronic Control Units. Does the sequence mean how do i power on my peripherals and power down the peripherals. Is there more than...
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    Closed: Application interface for Nvram

    I have this clarification i want to write application interface for nvram. The doubt is does the application needs to know the eeprom address where he is writing? How to implement such a logic where...
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    Closed: Port Initialization Return value

    The application calls the Port_Init() and there is return type of Port initialization is success or not. Now my question is how is it possible to know that the port is initialized successfully? In...
  14. Closed: Oscillator Section in different Microcontroller Families

    Suppose if i take some different family of micro controllers say infineon, microchip will the oscillator section remain same? Does the basic concept remain the same in all the controllers with...
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    Closed: Re: Microcontroller reset reason

    I have not tried it myself but it is not very straight forward, you need to write some additional code / flags to actually find the reason. In the default interrupt write a while(1) statement so that...
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    Closed: Re: Resistance value when powered on

    That is for confirming 120 ohm resistance between the lines.

    I am not sure about CAN bus topology.
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    Closed: Re: Resistance value when powered on

    Ok i am not clear, this is the case of measuring resistance between Can-high and Can-low lines.
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    Closed: Resistance value when powered on

    I want to clarify suppose if i want to measure the resistance between two points in micro controller hardware board using multimeter, can i do it when it is powered on or i can do it only after...
  19. Closed: Re: Trying to pass and return a variable to a function returns uneffected value

    Two ways to do

    1. First is you are returning a value from the function but you are not assigning to any variable. So, the return value is wasted.

    2. Second thing you have to check the argument...
  20. [SOLVED]Closed: Re: Problem in opening the output window in MPLAB X IDE v3.61

    Yes there is a very good feature goto window and press Reset windows in Mplabx. Everything will be as original.
  21. Closed: Re: Parallel processing of pwm and comparator

    147161
    As per the interrupt user manual i have seen as shown in the image. What is Mov.d instruction? When this will be introduced? Please advise.
  22. Closed: Re: Parallel processing of pwm and comparator

    No level 7 is the highest priority.
  23. Closed: Re: Parallel processing of pwm and comparator

    I followed mostly the micro chip application note where it is almost implemented the same with pwm at 20khz and the hall sensors are connected to the Change notification inputs, in my case it is the...
  24. Closed: Re: Parallel processing of pwm and comparator

    The observation i made after seeing the waveform was that the comparator output was not exactly giving the high or low at exactly the cross over point. Randomly it was introducing some delay. I...
  25. Closed: Parallel processing of pwm and comparator

    I am facing this problem. I have configured my pwm for 20khz and implementing the logic of space vector modulation in the interrupt routine in pwm interrupt. The problem is the hall sensors are...
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