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Recent content by leoz

  1. L

    What are Spare-cells ?

    Re: what is Spare-cells ?where i can use those cells Wow, a very nice paper.
  2. L

    Green board shape in Altium Designer, cannot turn off

    Currently I learned Altium Designer and found the same problem. At first,it really made me confused. Finally I found out that the green color actually prompts there exist some design rule violations. You can try Tools-> Design rule check in the menu, and click "Run Deisgn Rule Check" in Design...
  3. L

    how to design the power system of a FPGA board?

    The FPGA(XC3S1500) on the board needs 1.2v, 2.5v and 3.3v power supplies, and the config PROM needs 1.8v. The ARM7(LPC2106) on the board needs 3.3v and 1.8v supplies. Can I use 6 mic29502 (a LDO regulator) chips to transform 5v power to satisfy all these 6 power demand? If I make a mistake...

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