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Recent content by jinboqiu

  1. J

    RF Transmitter with CC1100 Development

    cc1100 sample code You can read "CC1000 debugging hints and troubleshooting" for reference. It is not possible to do low level RF design without some basic RF instruments,like RF signal generator,spectrum analyser etc.
  2. J

    Opinions about STM ARM products

    Re: STM ARM Hi, Do you know about any problem about STR71x or STR73x,especially for CAN controller ? there so many hardware bugs in LPC2XXX,TMS470,MAC7100 :cry:
  3. J

    Which micros family is better AVR or ARM?

    Re: AVR or ARM Today there are more and more ARM based controller,but there are so many hardware bugs be found in TMS470, LPC2xxx and MAC7100. But I can not see the erreta data of STR71x or STR73x ,why? It means ST have more reliable product design for ARM based controller?
  4. J

    What's the pipeline mode in ARM processors?

    Re: ARM in pipeline mode in the tms470 datasheet ,it means the embedded" flash memory " can run 28MHz in normal mode,fast in FLASH pipeline mode.not say the ARM core run in such mode.
  5. J

    Getting started with a tms470?

    tms470 all ARM7 based MCU share common arm or thumb instruction set ,but have different peripheral module ,and have diff performance.
  6. J

    TQFP footprint needed

    lqfp library for orcad layout if you use orcad 9.2 demo version,you can download the footprint lib from orcad ftp server.
  7. J

    How to define the layer stackup and what is a test coupon ?

    Re: Layer Stackup definiton you need to think about price and complexity of the board.less layer lower fee.
  8. J

    help in starting PCB designing

    you can learn orcad capture(for schematic) and layout(for PCB),it is very easy to use and with lots of online help.
  9. J

    which software to open these files?

    You may CADSTAR v5.0 or 6.0 open those file,see the web site of chipcon.
  10. J

    Which is better for RFIC design, ADS or SPECTRE?

    Re: ADS or SPECTRE I think the spectre is more suite for RFIC sim,ADS more suite for board level sim.
  11. J

    Need help for error when create PSpice netlist in capture !

    When I try to create PSpice simulation Netlist in capture(Allegro Design Entry CIS 10.2.0.P001 CIS), I get following Error:"Uable to open property mapping file:devparam.txt".But the file devparam.txt in it's place %CDSROOT%\tools\pspice\library\ Anybody can tell me how to correct this Error...
  12. J

    How to create blind and buried vias in OrCAD Layout PLus ?

    blind via orcad Are the anyone can tell me , how to define and use Blind and buried vias in Layout plus? Thanks!
  13. J

    How to create a tear drop in Protel 99 se ?

    Re: tear drop after your post a design ,you can can use CAM tool such as CAM350 or gerbtool to create teardrop!
  14. J

    allegro and orcad compare?

    ConceptHDL and ORCAD Capture are two native sch tool for allegro,butyou have to pay more attention when use Capture with Allegro,it is not "native" as conceptHDL.
  15. J

    Need help for use PSpice in Cadence SPB 15.2 !

    pspice 15.2 I use widows version,i allways logged in as administrator. I found a japanese site have same topic ,but i don't know japanese.
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