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  • Users: bubulindo
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  1. bubulindo

    Timer2 in SAB80C535

    Hello, I would like to know if anyone has worked with the timer2 of the SAB80C535. I want it to work as a simple timer. But i can't seem to find the control bit to start counting or even the interrupt flag. Best regards, Carlos Cardoso
  2. bubulindo

    GCC compiler for 51 microcontrollers

    Hello, i would like to know if any of you know of any GCC compiler for 51 family of microcontrollers??' Best regards, Carlos Cardoso
  3. bubulindo

    .jed viewer for XP

    Thanks for all. But i've figured out the solution for my problem!!! Best regards, Carlos Cardoso
  4. bubulindo

    .jed viewer for XP

    I'm using the 16V8. If it worked i would be gratefull! Best regards, Carlos Cardoso
  5. bubulindo

    .jed viewer for XP

    How can i xlate it into equation?? Best regards, Carlos Cardoso
  6. bubulindo

    .jed viewer for XP

    Hello, I would like to know if there is any program to view a file with a .jed extension. This type of files is used in programs for PAL's. Best regards, Carlos Cardoso
  7. bubulindo

    Analog to digital conversion with multiple channels

    I want to connect these all channels to the same point in order to get higher accuraccy with less effort. If you saw in 80c515 i can select the reference tensions for the A/D maximizing accuracy. Best regards, Carlos Cardoso
  8. bubulindo

    Analog to digital conversion with multiple channels

    Hello, Upfront i would like to tell that the Subject hasn't got much to do with my doubt. I'm using the SAB80C515 and i would like to know if it is possible to connect all the analog inputs of the A/D to the same point? Will it affect the accuracy of the readings?? Best regards, Carlos...
  9. bubulindo

    MsgBox in VB6

    Hello, I would like to know if it's possible to take off the alert sound that a msgbox makes in VB??? Best regards, Carlos Cardoso
  10. bubulindo

    reflective component

    I'm looking for a coating or a plastic tape that changes it's reflective properties if there is water behind her or not. The purpose is to detect the level of water in a glass container via a reflective infrared sensor. Can someone help me??? Best regards, Carlos Cardoso
  11. bubulindo

    Flow meter....

    Hello, I would like to know where can i find some information on flow meters for liquids's. Best regards, Carlos Cardoso
  12. bubulindo

    USB development

    You can get a simple cost efective chip that converts RS232 signals into usb at: www.ftdichip.com Best regards, Carlos Cardoso
  13. bubulindo

    PIC Chip Programming

    I've used both PIC and AVR and my advice to you is to use AVR. They are both RISC, but AVR is quite cheap and faster! There's another thing that makes AVR beter that is the In System Programming. With it you don't have to disconnect your chip from the circuit, you just connect the programmer...
  14. bubulindo

    GigaOhm measurement

    At the exit of my amp-op (i'm using OPA602) i have a zener diode, an RC filter ( 10kOhm and 0,47 uF) and an Analog to digital converter! Best regards, Carlos Cardoso
  15. bubulindo

    GigaOhm measurement

    about 12 seconds. I'm doing my prototype in Vero Board, i've already lowered my voltage divider resistance to 10 MOhm's but it is still too slow. What did you ment by fF capacitance?? Does it mean add a capacitor in my circuit?? Precharge is out of the question because my microcontroller...
  16. bubulindo

    GigaOhm measurement

    Hello, i'm building a GigaOhm measuring device. I'm making a voltage divider with the GigaOhm resistance and a 68MOhm resistance and i apply that signal to a non-inverting amplifier with a gain of 40. My problem is that my signal takes too long to settle. How can i make it faster?? Best...
  17. bubulindo

    battery and wall cube adaptor device

    In what catalogue did you saw it? Best regards, Carlos Cardoso
  18. bubulindo

    battery and wall cube adaptor device

    It could be, but i don't want to include a battery charger chip. Since it is ment for commercial use, people might try to charge batteries that aren't ment for that charger. Like placing an NiMH battery in a place for a Li ion battery! best regards, Carlos Cardoso Best regards, Carlos Cardoso
  19. bubulindo

    battery and wall cube adaptor device

    I'm planning on building a portable device powered by a battery, but i also want it to be possible to connect a wall cube adaptor to power my device. How can i do it without the need for a mechanical switch? Best regards, Carlos Cardoso Best regards, Carlos Cardoso
  20. bubulindo

    Good analog design book(s)

    I've studied all about electronics ( except power electronics) by the Microelectronics by Adel Sedra. It's quite big but it covers a lot of subjects. By the way, i've studied power electronics by a book called Electronique de puissance written by a french guy Best regards, Carlos Cardoso Best...

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