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annotate pirelli/scale @ 393:6c31d8c54ae4

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se_k200i: preliminary analysis
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 06 Nov 2022 01:13:43 +0000
parents d05b2e790e6b
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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58
d05b2e790e6b Pirelli PCB: some measurements of the debug connector footprint
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
1 Seeking to establish the scale between pixels and mm
d05b2e790e6b Pirelli PCB: some measurements of the debug connector footprint
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
2 Measuring the S71PL129NC0 footprint on L8
d05b2e790e6b Pirelli PCB: some measurements of the debug connector footprint
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
3
d05b2e790e6b Pirelli PCB: some measurements of the debug connector footprint
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
4 4 corner balls of this fp:
d05b2e790e6b Pirelli PCB: some measurements of the debug connector footprint
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
5
d05b2e790e6b Pirelli PCB: some measurements of the debug connector footprint
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
6 (4698,443) (5250,443)
d05b2e790e6b Pirelli PCB: some measurements of the debug connector footprint
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
7
d05b2e790e6b Pirelli PCB: some measurements of the debug connector footprint
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
8 (4697,893) (5249,895)
d05b2e790e6b Pirelli PCB: some measurements of the debug connector footprint
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
9
d05b2e790e6b Pirelli PCB: some measurements of the debug connector footprint
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
10 rounding width to 552 pixels, height to 450 pixels
d05b2e790e6b Pirelli PCB: some measurements of the debug connector footprint
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
11 the actual dimensions are supposed to be 8.80x7.20 mm
d05b2e790e6b Pirelli PCB: some measurements of the debug connector footprint
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
12
d05b2e790e6b Pirelli PCB: some measurements of the debug connector footprint
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
13 estimating somewhere between 62.5 and 62.8 pixels per mm