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  1. OBW0549

    Problems with composite video generation!

    Post a schematic of your circuit so we're not having to guess blindly; until you do, we cannot give you an answer any more definitive than "obviously, you've done something wrong." Once we see a schematic, we might be able to help you figure out what that "something" is. Without one, we'd just...
  2. OBW0549

    Voltage Follower Doesn't Work

    Another indication about supply voltage requirements comes from the data sheet graphs that show various performance parameters as a function of supply voltage: in all of them, the lowest supply voltage for which data are shown is ± 5 volts. That's a strong suggestion that the part cannot be...
  3. OBW0549

    100G ohm resistor only measures 50G ohm

    Well, I'd say 10 TΩ oughtta do the job... No wife, here-- therefore, infinite hobby! :D
  4. OBW0549

    100G ohm resistor only measures 50G ohm

    I have a few 1 GΩ resistors on hand for oddball projects such as signal conditioning circuits for piezoelectric accelerometers, but I can't even imagine what one would use a 1 TΩ or 10 TΩ resistor for. What are you making?
  5. OBW0549

    ***A stupid question maybe?! --- When you purchase a microcontroller

    No, it's not JTAG. The PICKIT3 (or any other Microchip ICSP programming device) communicates using a simple proprietary protocol with a small dedicated hardware block inside the PIC which performs the actual programming. In any case, that's not a detail you need to be concerned with.
  6. OBW0549

    ***A stupid question maybe?! --- When you purchase a microcontroller

    There is no "second PIC". The PICKIT3 debug/programming pod is plugged into an ICSP connector on your target board; your PC or Mac is connected to the PICKIT3 via a USB cable; and the MPLAB development system operates the PICKIT to load your application into your target. It really is as simple...
  7. OBW0549

    ***A stupid question maybe?! --- When you purchase a microcontroller

    NO!! No secondary system w/ PIC is involved. I do it EXACTLY as I described above in post #9.
  8. OBW0549

    ***A stupid question maybe?! --- When you purchase a microcontroller

    NO!! I load the actual target code directly via ICSP, and no bootloader (or "bootstrap", if you will) is EVER involved.
  9. OBW0549

    ***A stupid question maybe?! --- When you purchase a microcontroller

    No. Bootloader firmware-- whether for PIC or AVR or any other microcontroller-- is only needed in cases where one wants to be able to load the application code via a conventional serial port. Note that the Arduino provides ICSP connections as well, and these are used in the same manner as...
  10. OBW0549

    ***A stupid question maybe?! --- When you purchase a microcontroller

    Keep in mind that I'm far from the only person here with experience using PICs; many, MANY others have, as well. Just post your questions in the forums and people will answer. I use Microchip's MPLAB integrated development environment, along with their PICKIT3 debugging/programming pod. MPLAB...
  11. OBW0549

    ***A stupid question maybe?! --- When you purchase a microcontroller

    I'll help if I can; just post your questions in these forums. Can't help you much there, as I've never worked with AVR micros and have only played around with Arduino a little bit. I've never used any PCB makers nor have I ever used Protel or any NI products. For simulation I use Microchip's...
  12. OBW0549

    Is there anyone on tonight that feels like a long chat?

    If you have a specific question, just start a discussion thread in the appropriate sub-forum and people will try to answer it for you.
  13. OBW0549

    ***A stupid question maybe?! --- When you purchase a microcontroller

    Correct. Yes. I've been building systems with microcontrollers since the mid-1970s beginning with the Intel 4040, and have used many different microcontrollers since then, most recently Microchip's dsPIC33EPxxx series. Every one has its own unique features, depending on the mission. What is...
  14. OBW0549

    very basic (general) microcontroller programming question

    I think everyone else who responded has had plenty of experience with microcontrollers, too; the reason for the confusion was there was some difficulty in ascertaining just what you were asking, especially your remark about wanting to learn "direct register programming instead of using the API...
  15. OBW0549

    Advice on becoming an engineer?

    My father, an EE, got me hooked on designing electronics when I was 9, back in 1958. From the moment I built my first "crystal radio" I knew I wanted to become an electrical engineer. Don't know. I got my BSEE/BSCS from the University of Colorado in 1978; I imagine the school was accredited...
  16. OBW0549

    very basic (general) microcontroller programming question

    Alas, this aspect of microcontroller programming is largely unavoidable; different chips can be quite different inside, with different suites of on-chip peripherals and their associated registers, and programming them necessarily entails close familiarity with each particular chip. This is true...
  17. OBW0549

    How can we Improve EP in 2017?

    Excellent! Outstanding! That seems to address the issue @Arouse1973 raised in post #44 above very nicely, as it gives a list of all threads that have been updated or created all the way back to (currently) January 3. To make it even more convenient I've created a bookmark from your direct...
  18. OBW0549

    How can we Improve EP in 2017?

    Another Xenforo-based forum has a "Today's Posts" button which brings up a list of all threads that have been posted to in the last 24 (I think) hours, regardless of whether or not you have read them. I wonder if we have that feature available here.
  19. OBW0549

    How can we Improve EP in 2017?

    Definitely!
  20. OBW0549

    How can we Improve EP in 2017?

    Yes, I saw them; I just wanted to voice my concerns based on past experience, whatever that may be worth.
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