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Recent content by kimjin

  1. K

    when will the wr_almost_full be set to "1" in this

    always @(posedge clk_wr or negedge rst_n) if (~rst_n) wr_almost_full <= 1'b0; else if (reset_fifo_wr) wr_almost_full <= 1'b0; else if (wr) begin // set full bit a bit early to allow for the fact that the master // will sample it whilst data is still...
  2. K

    where can find intel atom n270 motherboard schematic?

    intel atom schematic where can find intel atom n270 motherboard schematic?thank you
  3. K

    difference between pci dma and pci burst ?

    it's the question puzzled me ,what's the difference between pci dma and pci burst ? who can tell me?3x
  4. K

    where can find the ati radeon 9200 datasheet?

    radeon datasheet where can find the ati radeon 9200 datasheet? thank you.
  5. K

    where can i find a powerpc design forum?

    where can i find a powerpc design forum? my work is the designing of ppc motherboard .the cpu would be the freescale mpc,but i don't find good document of ppc motherboard.i need help. thx.
  6. K

    question on developing a mini mpc860 system?

    i haven't jtag simulator and udm simulator , can i develop the mpc860 mini system? if can use the jtag or system debug port(dck,dso,dsi)to develop the system? where can find some document and source code? thank you!
  7. K

    how to develop a mini mpc860 system?

    i haven't jtag simulator and udm simulator , can i develop the mpc860 mini system? if can use the jtag or system debug port(dck,dso,dsi)to develop the system? where can find some document and source code? thank you!
  8. K

    How to test if a flash chip is ok?

    Re: how to test a flash? i'm using am29lv160db-70ei. can it use spi?
  9. K

    How to test if a flash chip is ok?

    i want to test some flash chip, these flash cann't work right, i program the flash and read the flash, but the whole flash is A7E7, it isn't my program file's content. how should i do to determine if the flash is good or not? thanks.
  10. K

    how to design a thremal enhance package LQFP80?

    how to place a copper plane without solder mask on top layer?
  11. K

    how to design a thremal enhance package LQFP80?

    i want to design a LQFP80 thremal enhance pack, it has a 1x1(cm2) pad under the package for thremal enhance. how to design the package, and the what's the relation between the symbol's pin and package's pin? and how to place a shape without mask solder? thank you.
  12. K

    how to demodulate 2fsk(f0=60M)?

    i don't think it's the best way, because i need a lot of work (such as filter)to do after mixer. now i'm study the if sample tech, this seem to be a good way. how do you think of it ? thank you.
  13. K

    how to demodulate 2fsk(f0=60M)?

    the 2fsk signal is :s(t)=sin((2*pi*60000000+a(t)*700000)*t),and 67m is '1',53m is '0'. i need to design the demodulate circuit . i look for the demodulate chip, but the the chip's f0 which finded in web is too low ,just khz. and the all digital pll need a very high frequency clk which maybe...

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