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Manual Version 6 - Cadsoft

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Table of Contents<br />

12<br />

Bus Router..................................................................................188<br />

Routing Pass...............................................................................189<br />

Optimization..............................................................................189<br />

7.4 What Has to be Defined Before Autorouting..............................189<br />

Design Rules...............................................................................189<br />

Track Width and Net Classes......................................................189<br />

Grid............................................................................................190<br />

Placement Grid........................................................................190<br />

Routing Grid............................................................................190<br />

Memory Requirement.................................................................191<br />

Layer..........................................................................................192<br />

Preferred Directions...................................................................192<br />

Restricted Areas for the Autorouter............................................193<br />

Cost Factors and Other Control Parameters...............................193<br />

7.5 The Autorouter Menu.................................................................194<br />

7.6 How the Cost Factors Influence the Routing Process.................196<br />

Layer Costs.................................................................................197<br />

cfBase.xx: 0..20........................................................................197<br />

Costs...........................................................................................197<br />

cfVia: 0..99...............................................................................197<br />

cfNonPref: 0..10.......................................................................197<br />

cfChangeDir: 0..25...................................................................198<br />

cfOrthStep, cfDiagStep.............................................................198<br />

cfExtdStep: 0..30......................................................................198<br />

cfBonusStep, cfMalusStep: 1..3................................................198<br />

cfPadImpact, cfSmdImpact: 0..10.............................................198<br />

cfBusImpact: 0..10...................................................................199<br />

cfHugging: 0..5........................................................................199<br />

cfAvoid 0..10............................................................................199<br />

cfPolygon 0..30........................................................................199<br />

Maximum...................................................................................199<br />

mnVia 0..30.............................................................................199<br />

mnSegments 0..9999...............................................................199<br />

mnExtdSteps 0..9999...............................................................199<br />

7.7 Number of Ripup/Retry Attempts..............................................200<br />

7.8 Routing Multi-Layer Boards with Polygons................................200<br />

7.9 Backup and Interruption of Routing...........................................201<br />

7.10 Information for the User...........................................................201<br />

Status Display.............................................................................201<br />

Log file.......................................................................................202<br />

7.11 Parameters of a Control File.....................................................203

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