Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Search results

  1. mrinalmani

    [SOLVED] Reference voltage pin for Kinetis L03 (MKL03Z8VFG4)

    Thanks for the reply! The reference manual solved the purpose.
  2. mrinalmani

    [SOLVED] Reference voltage pin for Kinetis L03 (MKL03Z8VFG4)

    Hi! My application requires sampling of three analogue lines and transmitting the results via serial line. I am thinking to use NXP Kinetis L03 series - MKL03Z8VFG4. But I am not sure about the analogue reference voltage pin. The datasheet says (on page number 34): "For packages without...
  3. mrinalmani

    simulating pic12f675 in multisim

    Hi As of now Multisim only supports PIC16F84 for simulation purpose. You can however add PIC12F675 as a component without simulation model. But this not what you are probably looking for.
  4. mrinalmani

    Implementing SPI interface in codes

    I am looking for MCUs that would cost less than 0.3$. Performance is not an issue. I am thinking of Texas Instruments MSP430G2 series.
  5. mrinalmani

    Implementing SPI interface in codes

    Hi Our project requires an MCU to communicate with a device over the SPI. The budget for the end product is very tight and MCUs with embedded SPI are slightly expensive. Is it possible (easily) to implement SPI programmatically? Data rate is irrelevant, a few kbps will do. Thank you
  6. mrinalmani

    [SOLVED] Driving capacitive load from MCU port

    Thanks! Many datasheets provide rise/fall time of ports when loaded with 50pF (an indication that direct 50pF is safe?) Anyway, I will stick to capacitance below 100pF when selecting drivers, driven directly from MCU ports. Also... Post #10 is not posted by me but probably by Mr. Skyguy. I dont...
  7. mrinalmani

    [SOLVED] Driving capacitive load from MCU port

    Thanks! One last thing... when selecting a microcontroller, how do we know if the channel resistance will be in the range of 25 ohm or 200 ohm? Or is there no way to tell until we have experimentally figured it out?
  8. mrinalmani

    [SOLVED] Driving capacitive load from MCU port

    All right I get it. From what I have learnt from your previous post (#3), it appears that if at all a series resistor be used, the values must be in tens of ohms (Since the internal resistance is as high as 25 ohm, small values of external will not help much). Adding such a large resistor will...
  9. mrinalmani

    [SOLVED] Driving capacitive load from MCU port

    My application is very general... A power MOSFET has to be driven. The driver circuit has a MOSFET based push-pull configuration. The driver receives input from the MCU. (Please refer to the attachment) Various drivers are available with Ciss ranging from approximately 10pF to 500pF. And as...
  10. mrinalmani

    [SOLVED] Driving capacitive load from MCU port

    What is a rough limit of capacitive load that can be driven safely from an MCU port? It may have something to do with the pulsed current capability of the port, which unfortunately is not stated in datasheets. Is 500pF safe to drive directly from the port? Thanks! - - - Updated - - - Also, is...
  11. mrinalmani

    Machine cycle in ARM M0

    How many clock cycles make up a machine cycle in ARM M0 processors? Thanks
  12. mrinalmani

    [SOLVED] PICKIT 2 pin-out for programming dsPIC33

    @horace1 Thanks for the link for supported devices, post #11 (Actually the last time I had cliked on that link, it didnt work) dsPIC33FJ06GS001 is indeed not supported by pickit-2. Neither for debugging nor for 'program only'. A similar link was available at Microchips website, but I have...
  13. mrinalmani

    [SOLVED] Oscillator connection to microcontrollers

    I am using dsPIC33FJ06GS001 Vdd = 3.3V I appears that this particular model is not supported by pickit-2 (although pickit-2 shows support for dsPICs)
  14. mrinalmani

    [SOLVED] Oscillator connection to microcontrollers

    Thanks for the help everyone! I think post #2 (wp100) should have been an end to the thread. Post #7 (SunnySkyguy) makes it further clear. I've got the answer, but I am anyway attaching a photo of my old schematic. In the new one that I will make, I will simply leave OSC2 pin floating. Please...
  15. mrinalmani

    [SOLVED] PICKIT 2 pin-out for programming dsPIC33

    The pickit is able to program a development board of PIC16F, so it's less likely to be faulty. I am attaching a photo of the error flashed by pickit. Any clue as to what unknown device ID means? How can be determine if a MCU is faulty?
  16. mrinalmani

    [SOLVED] PICKIT 2 pin-out for programming dsPIC33

    The appropriate programming pins are connected to pickit, during programming. (It's not depicted in the schematic) I cant configure anything unless the MCU can be detected and programmed. So configuring the oscillator input is not possible.
  17. mrinalmani

    [SOLVED] Oscillator connection to microcontrollers

    Thanks for the reply, but I cannot configure anything, my MCU is not waking up.
  18. mrinalmani

    [SOLVED] PICKIT 2 pin-out for programming dsPIC33

    No, not a jump, a head-start! The only experience I have with Pic16F 877a is to load a program to change its port status. (Although I have worked with 8051) The chip that I am setting up now is dsPIC33FJ06GS001 I am using Pickit-2 software for programming, not MPLAB. (Although I have MPLABX) I...
  19. mrinalmani

    [SOLVED] PICKIT 2 pin-out for programming dsPIC33

    I have assembled a PCB with minimum requirements for dsPIC33. To program the MUCU, I connected it to a pickit 2 programmer. Connections are as follows Pickit ----- MCU Vpp ----- \MCLR Vdd ----- Vdd GND ---- GND PGC ----- PGC1 PGD ----- PGD1 AUX ----- Not Connected Pickit-2 doesn't detect the...
  20. mrinalmani

    [SOLVED] Oscillator connection to microcontrollers

    I have a four terminal crystal oscillator. The four pins are: Vdd, GND, Enable, OUT The frequency output is wrt Ground. Microcontrollers have two terminals for oscillator input, and the oscillator is supposed to be connected in a floating manner across the two pins. However, since my...

Part and Inventory Search

Top