Must insure IEC 61188-7 Level A zero component orientation

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IPC7351 and IEC 61188-7 Level A component orientation must be respected. 

The user-provided orientation compatible with the datasheet is used to generate 
correct pad numbers from the orientation of the drawing. However, the final 
drawn footprint must always have pin A1 in the upper left (North West).

The BGA grid generator should be modified to insure this is true by rotating 
the generated grid appropriately.

Original issue reported on code.google.com by tennesse...@gmail.com on 4 Feb 2011 at 7:35

[GoogleCodeExporter]

Attached a drawing of what is meant. This is from the "PCB Design Perfection 
Starts in the CAD Library - Part 10" blog post from Tom Hausherr 
(http://blogs.mentor.com/tom-hausherr/blog/2011/01/14/pcb-design-perfection-star
ts-in-the-cad-library-part-10/)

Original comment by tennesse...@gmail.com on 4 Feb 2011 at 7:36

Attachments:

• figure-1-ipc-7351-pin-1-upper-left1-520x117.png

[GoogleCodeExporter]

This issue was closed by revision r15.

Original comment by tennesse...@gmail.com on 8 Feb 2011 at 1:52

• Changed state: Fixed