Type: Posts; User: andre_teprom

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  1. Replies

    Re: Transformer and alternator

    This thread became unfruitful and moods have been exalted again although ads-ee requests for avoiding that, so it will be closed.

    Fact: The mentioned video does not represent an actual simulation,...
  2. Replies

    [PIC]Closed: Re: Sleep mode - dspic33ch128mp508

    Didn't you find anything on instructions set of the compiler datasheet like that ?


    With a quick search on the Web I could easlily find the assembly instruction that do the same:

  3. [PIC]Closed: Re: ADC reading , Timer interrupt - dspic33ch128mp508

    Don't seem it is likely missing something like that at the init routine?

    INTCON2.GIE = 1 // enable global interrupt

    Seriously speaking, take a look at other extensively available examples on...
  4. [PIC]Closed: Re: ADC reading , Timer interrupt - dspic33ch128mp508

    It seems like you are missing the command for starting the A/D conversion, either at the main() and at the interrupt() vectors:

    ADCON3Lbits.CNVRTCH = 1;

    Moreover, you are not enabling...
  5. Closed: Re: PIC microcontroller debugging- dspic33ch128mp508

    You did not specify what programmer you are using, and what pins are aavailable to programming connector, anyway if I were you I would investigate this line:

    #pragma config JTAGEN = OFF // JTAG...
  6. Closed: Re: [Microcontroller] Voltage Reading without ADC

    From what was posed so far, indeed not clearly, it is assumed that OP wants to simply detect the battery low-level (supposedly lead-acid, given the above values), for which he certainly is not aware...
  7. Closed: Re: Tuning of varicap diode in a magnetic loop antenna based on modulating signal

    Should we assume that your doubt concerns an unconventional case of a demodulation without use of intermediate frequency in the receiver side? This feature is designed to allow the transmission of...
  8. Closed: Re: LoRa nodes and simultaneously communication with LoRa Gateway

    Collisions are not intrinsically handled with LoRa protocol, which means that proper packet management have to be externaly done by end application at each node in order to ensure that all command...
  9. Closed: Re: Is it possible to assign a value to a signal in a systemverilog assertion?

    This is a regular statement on this language.
  10. Closed: Re: Deadband and Hysteresis values from graphs

    The above 3 graphics are on different scales, so in order to make things easiest to understand I put everything on the same grid.

    For the first case there is neither deadzone nor hysteresis, there...
  11. Closed: Re: Does it exist an AC to AC converter in small package for converting 220v to 110v?

    No, this was not the point, but rather to advice OP about the correct value of the absolute maximum firing angle to be adopted in the design of the control circuit, just that.

    BTW, some fans have...
  12. Closed: Re: Does it exist an AC to AC converter in small package for converting 220v to 110v?

    The maximum peak voltage dimmed from 220vac equivalent to the peak of 110vac should be considered regardless of the rms voltage delivered to the fan.

    The half voltage is obtained with a firing...
  13. Closed: Re: how to design a thermostat without Microcontroller?

    @Dr_Mohammad, your above (deleted) post contained exactly the same schematic diagram with the same values posted more than a dozen posts back, despite all the calls to present the circuit diagram or...
  14. Closed: Re: copper pour in top layer with vcc net

    Should we assume that you ran a DRC check on the final completion of the board design so that all the routed connections match the electrical diagram? If the schematic is correct, there is no reason...
  15. Closed: Re: Coin Slot acceptor Timer using PIC16f84a

    You are expecting that end user will insert only one coin and await for the end of the process, and only after this moment to add another one. Coding blocking inline as this is not the recommended...
  16. Closed: Re: dsPIC30F2010 - 30 I/SP restarts at interval of 20seconds for no known reason

    Are you sure that the compiler supports this syntax?


    According to Microchip's datasheet (154359), the correct one for 16-bits microcontrollers seems like being rather that:
  17. Replies

    [SOLVED]Closed: Re: Failure analysis of broken MCU

    Portable thermal camera readers are often used to determine if there is, or what device, are hot in the board. If you get an affordable one, perhaps you could be able to - with certain degree of...
  18. Closed: Re: To develop 3D printer in PIC controller

    Certainly in this case the microcontroller is acting as a mere slave without locally buffering the contents of the G code, instead, receiving remotely the control commands from the PC side.
  19. Closed: Re: dsPIC30F2010 - 30 I/SP restarts at interval of 20seconds for no known reason

    Although at first glance this should work, surely doing a logical inversion by an algebraic operation is not the usual way of toggling a bit. Consider instead of doing a toogle, just forcing to a...
  20. Closed: Re: To develop 3D printer in PIC controller

    What you refer to G codes are nothing less than printhead positioning, inject, and moving instructions which I highly doubt a microcontroller with small internal RAM capacity would be able to handle...
  21. Closed: Re: [Microcontroller] Voltage Reading without ADC

    A comparator is the default choice in these cases, but if you do not need more than one, you might want to consider doing that with a precision shunt regulator (e.g TL431), few components needed.
  22. Replies

    Closed: Re: help identify diode LV1 G629

    Surely you should know that the mere information that both the diodes are connected to a 12v bus is not elucidative by itself since diodes are polarized devices; but if I were to bet based on the...
  23. Closed: Re: 8x8 DOT MATRIX_o/p is flip scrolling and brightness issues.......

    Surely the following routine will be useful to you, obviously with the appropriate modifications. In the case, I used it just to remap the character's fonts, and with the output of the execution, I...
  24. Replies

    [SOLVED]Closed: Re: I2C in STM32F103 longer data

    Did you check the oscilloscope if the slave is sending the acknowledge on the bus?
  25. Closed: Re: Replacing resistors in small MCU circuit

    The use of RS-232 signals without a negative bus reference, in spite of working many times, it is not the correct way to do that, you are not sure that what worked well interfacing this board with...
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