# HG changeset patch
# User Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
# Date 1384376430 0
# Node ID d05b2e790e6b03799f5f124f0134c6713fb80bf5
# Parent  277fd7b971f0589adae5fbc00bec99ce5fbb6557
Pirelli PCB: some measurements of the debug connector footprint

diff -r 277fd7b971f0 -r d05b2e790e6b pirelli/debug
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/pirelli/debug	Wed Nov 13 21:00:30 2013 +0000
@@ -0,0 +1,15 @@
+Debug connector footprint on the side next to the display
+
+centre of the leftmost pad:  (2670,2206)
+centre of the rightmost pad: (3011,2206)
+
+distance in pixels: 341
+pitch in pixels: 31 (341/11)
+
+assumed physical pitch: 0.5 mm
+length of the pads: a little longer than 1 mm
+
+The two larger (mounting?) pads appear to be 2x2 mm square.
+They sit about 1.5 mm south of the signal pad centreline.
+Horiz distance between centre of each outermost signal pad
+and the nearby mounting pad: 140 pixels, or a little over 2 mm.
diff -r 277fd7b971f0 -r d05b2e790e6b pirelli/scale
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/pirelli/scale	Wed Nov 13 21:00:30 2013 +0000
@@ -0,0 +1,13 @@
+Seeking to establish the scale between pixels and mm
+Measuring the S71PL129NC0 footprint on L8
+
+4 corner balls of this fp:
+
+	(4698,443)	(5250,443)
+
+	(4697,893)	(5249,895)
+
+rounding width to 552 pixels, height to 450 pixels
+the actual dimensions are supposed to be 8.80x7.20 mm
+
+estimating somewhere between 62.5 and 62.8 pixels per mm