Return to toy CVS log

Up to [Research Unix] / researchv10dc / vol2 / Ucds

Annotation of researchv10dc/vol2/Ucds/toy, revision 1.1

1.1     ! root        1: .NH
        !             2: A Toy Example.
        !             3: .LP
        !             4: In this section we present a complete example.  The design consists of
        !             5: two
        !             6: .SM I/O
        !             7: connectors that route signals from a ribbon cable to a backplane.
        !             8: Here is the schematic, followed by the
        !             9: .CW ".w"
        !            10: file:
        !            11: .PS <toy.pic
        !            12: .nr dP 2       \" delta point size for program
        !            13: .nr dV 2p      \" delta vertical for programs
        !            14: .P1
        !            15: .so toy.w.l
        !            16: .P2
        !            17: .LP
        !            18: The comments (introduced by
        !            19: .CW % )
        !            20: are coordinates from the
        !            21: .CW .j
        !            22: file that can be used later to annotate the drawing with pin numbers.
        !            23: Otherwise the
        !            24: .CW .w
        !            25: file is mostly just a compendium of the text strings in the
        !            26: .CW .j
        !            27: file.
        !            28: In order to proceed further, we need a
        !            29: .CW .pins
        !            30: file:
        !            31: .P1
        !            32: .so toy.pins.l
        !            33: .P2
        !            34: .LP
        !            35: It should be fairly obvious what is going on here.  Note the appearance of the
        !            36: .I "package type"
        !            37: on the
        !            38: .CW .t
        !            39: lines.
        !            40: Now the
        !            41: .CW .wx
        !            42: file can be made:
        !            43: .P1
        !            44: .so toy.wx.l
        !            45: .P2
        !            46: .LP
        !            47: This is basically a listing, for each chip, of net\ name\-pin\ number pairs.
        !            48: Package types are copied through from the
        !            49: .CW .pins
        !            50: file for use by the physical design tools, and
        !            51: the pin names are left as an aid to humans.

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.