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Recent content by Jos Brink

  1. Jos Brink

    LQFP Layout in 45º Degree

    i don't think it's a must. But because of the many connections, it gives a tight fanout.
  2. Jos Brink

    [SOLVED] Altium 10 SVNDbLib How this work?

    Hello, I'am also trying to create a SVNDBLib, i used to have a DBlib. Everything seems to work, except for one thing: I cant see the symbols or footprints in the library manager, and ever worse, i can't place them. When i open the SVNDBlib file i can see all of my components, and i even add and...
  3. Jos Brink

    Hardware for IP audio streaming

    hardware audio streamer on www.vlsi.fi they have a reference design on a VoIP Phone. Grtz
  4. Jos Brink

    Want to make audio player ?

    Go to VLSI.FI they have multiple mp3 decoders. Even complete players with MMC interface. I've got a prototypeboard here and I think it's great. www.vlsi.fi
  5. Jos Brink

    50 OHM MICROSTRIP LINE DESIGN 2.45GHz

    50 ohm microstripline **broken link removed** See page 12.
  6. Jos Brink

    Flash memory -> Pages and sectors

    I'm trying to understand the Flash rom of a STR91x ARM chip, i am familiar with the term page. but in this datasheet of ST they are talking about sectors.
  7. Jos Brink

    Can I use PORTF of ATmega128 as output?

    atmega128 programming jtag disabled what is the version number of CVAVR? i remember that there was a wrong define in the mega128.h file in early versions. The code you wrote should work, double check that the ADC is also disabled, it can also overrule the PORTF as GPIO. Good luck
  8. Jos Brink

    Flash memory -> Pages and sectors

    Hello, Quick question: Is a flash-page the same as a flash-sector? Thanks
  9. Jos Brink

    What is the delay of a xor gate ?

    stupid question ?!! depends on the chip family HC HCT AC F ect. on the site of fairchild you can find a table with the speeds.
  10. Jos Brink

    Buffered and non-buffered access on an ARM9 chip

    Hi there, I'm trying to understand the ARM9 core. Can someone explain me the difference and the use of these two memory accesses. I'm reading the STR91 datasheet and i see multiple addresses for the same peripheral. What's the idea behind this? Thank you for your time. Micha
  11. Jos Brink

    Need refernces on standard via sizes

    Re: Min Via Size The URL of the file Housecat mentioned has changed to: **broken link removed** Very usefull for me! Thnx
  12. Jos Brink

    Memory Circuit Design ebook

    404 :|
  13. Jos Brink

    How to check whether mosfet is good or not in circuit?

    mosfet checking If a FET fails it most commonly give a short circuit between Source and Drain. (in power applications) You can messure the resistance between these pins. If it is lower than a MEG it is probably dead. goodluck.. PS: don't forget to power down your device.. :D
  14. Jos Brink

    Difference between ARM device and microcontroller.

    beginners kits microprocessor arm Most microcontrollers used by "beginners" are 8bit and have a simple instruction set, the arm microcontroller has a more complex instructionset, you can shift, add and move in just one instruction. that is what makes it so powerfull. ARM microcontrollers also...
  15. Jos Brink

    Guidelines for SIL2 and IS design

    Re: SIL Requirement Hi, are I'm looking for C compiler requirements for a SIL3 design. Anyone experience with these norms?
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