Moved qfn.fpd and qfp.fpd from ben-wpan to kicad-libs (incoming)

AUTHORS

@@ -8,12 +8,14 @@ Werner Almesberger <werner@almesberger.net>
 
   components/8_10-card.lib
   components/vga.lib
-  modules/pads.fpd
-  modules/stdpass.fpd
-  modules/8_10-card.fpd
-  modules/fiducial.fpd
   components/74x1g08_5.lib (based on 74x1g00_5.lib)
   components/74x1g08_6.lib (based on 74x1g00_5.lib)
   components/74x1g07_5.lib
   components/74x1g07_4.lib
   components/74x1g07_6.lib
+  modules/pads.fpd
+  modules/stdpass.fpd
+  modules/8_10-card.fpd
+  modules/fiducial.fpd
+  modules/qfn.fpd
+  modules/qfp.fpd

modules/INFO

@@ -16,3 +16,51 @@ F: 8_10-card
 
 # Fiducial (1 mm copper pad, 2 mm solder mask clearance)
 F: fiducial
+
+# "Generic" simple QFN
+F: qfn
+#
+# The information for these packages comes from various sources:
+#
+# - the C8051F326 data sheet, for the QFN28 footprint (N: mcu)
+# - the AT86F326 data sheet, for the QFN32 package dimensions (N: txrx)
+# - Atmel's general recommendations for QFN land patterns (N: atmel-qfn)
+# - NXP's SOT617-1 and SOT617-3, for package and land pattern:
+#   http://www.nxp.com/package/SOT617-1.html
+#   http://www.nxp.com/package/SOT617-3.html
+#
+# Solder paste:
+#
+# Footprint    Center pad  Closest NXP (with complete land pattern)
+# QFN28-Atmel  2.4 mm	   for further study
+# QFN28-SiLabs 3.3 mm	   use SiLab's specification
+# QFN32-VHHD-2 3.7 mm	   between SOT818-1 and SOT788-1
+# QFN32-VHHD-6 3.4 mm	   SOT818-1
+#
+# From NXP:
+#
+# Package   Pad  Paste zone  Islands  Isl. size  Isl. gap
+# SiLabs    3.25 3.1	     3 x 3    0.9	 
+# SOT818-1  3.4  1.75	     2 x 2    0.75	 0.25
+# SOT788-1  4.0  2.4	     3 x 3    0.6	 0.3
+#
+# NXP rules (AN10365):
+# - paste zone = 35% of pad area
+# - paste coverge = 20% of pad area
+#
+# Our parameters:
+#
+# Package       Pad  Paste zone  Islands  Isl. size  Isl. gap  Zone  Coverage
+# QFN32-VHHD-2  3.7  2.15	 3 x 3	  0.55	     0.25      34%   20%
+# QFN32-VHHD-6  3.4  1.95	 2 x 2	  0.75	     0.45      33%   19%
+#
+# Known bugs:
+#
+# - really ought to merge all the various QFN definitions (we have more
+#   over at gta02-core) into a single QFN file with a big mean table of
+#   everything
+#
+N: sot617-3-lp
+
+# "Generic" simple QFP (for now, just for Silabs' C8051F320)
+F: qfp

modules/Makefile

@@ -1,4 +1,4 @@
-MODULES=8_10-card fiducial pads stdpass
+MODULES=8_10-card fiducial pads qfn qfp stdpass
 
 .SUFFIXES:	.fpd .mod
 .PHONY:		all clean

modules/qfn.fpd

@@ -0,0 +1,124 @@
+/* MACHINE-GENERATED ! */
+
+frame paste_pad {
+	__0: vec @(SX/2, SY/2)
+	__1: vec @(-SX/2, -SY/2)
+	pad " " . __0 paste
+}
+
+frame paste {
+	set x = SE*(xi-SNX/2-0.5)
+
+	set y = SE*(yi-SNY/2-0.5)
+
+	loop xi = 1, SNX
+
+	loop yi = 1, SNY
+
+	__0: vec @(x, y)
+	frame paste_pad .
+}
+
+frame center {
+	set pin = pins+1
+
+	__0: vec @(X2/2, Y2/2)
+	__1: vec @(-X2/2, -Y2/2)
+	pad "$pin" . __0 bare
+	frame paste @
+}
+
+frame pad {
+	set px = (dx*X1+dy*Y1)/2
+
+	set py = (dy*X1+dx*Y1)/2
+
+	set pin = side*pins/4+i+1
+
+	__0: vec @(px, py)
+	__1: vec @(-px, -py)
+	pad "$pin" __0 .
+	__2: vec @(px, -py)
+}
+
+frame side {
+	set pos = i-(pins/4-1)/2
+
+	loop i = 0, pins/4-1
+
+	__0: vec @(E*pos*dx, E*pos*dy)
+	frame pad .
+}
+
+frame pads {
+	table
+	    { side, dx, dy }
+	    { 0, 0, -1 }
+	    { 1, 1, 0 }
+	    { 2, 0, 1 }
+	    { 3, -1, 0 }
+
+	__0: vec @(dy*C1/2, -dx*C2/2)
+	frame side .
+}
+
+frame index {
+}
+
+frame outline {
+	table
+	    { index, dx, _, dy }
+	    { 1, -1, 0, 0 }
+	    { 0, 0, 0, -1 }
+	    { 0, 1, 0, 0 }
+	    { 0, 0, 0, 1 }
+
+	set mx = dx*C1/2
+
+	set my = dy*C2/2
+
+	set cx = mx+my
+
+	set cy = my-mx
+
+	set ax = -Y1/2*dx
+
+	set ay = -Y1/2*dy
+
+	set bx = -Y1/2*dy
+
+	set by = Y1/2*dx
+
+	__0: vec @(cx, cy)
+	w: vec .(ax, ay)
+	line __0 . w
+	__2: vec __0(bx, by)
+	line __0 . w
+	__1: vec .(index*(ax-bx), index*(ay-by))
+	line __2 . w
+}
+
+package "QFN$pins-$variant"
+unit auto
+
+table
+    { pins, variant, X1, Y1, X2, Y2, E, C1, C2, SE, SNX, SNY, SX, SY }
+    { 28, "Atmel", 0.24mm, 0.7mm, 2.4mm, 2.4mm, 0.45mm, 4.1mm, 4.1mm, 1mm, 2, 2, 0.8mm, 0.8mm }
+    { 28, "SiLabs", 0.25mm, 0.9mm, 3.3mm, 3.3mm, 0.5mm, 4.8mm, 4.8mm, 1.1mm, 3, 3, 0.9mm, 0.9mm }
+    { 32, "VHHD-2", 0.26mm, 0.69mm, 3.7mm, 3.7mm, 0.5mm, 5.1mm, 5.1mm, 0.8mm, 3, 3, 0.55mm, 0.55mm }
+    { 32, "VHHD-6", 0.26mm, 0.69mm, 3.4mm, 3.4mm, 0.5mm, 5.1mm, 5.1mm, 1.2mm, 2, 2, 0.75mm, 0.75mm }
+
+set w = 5mil
+
+frame pads @
+frame center @
+frame outline @
+measy side.__0 >> side.__0 3mm
+meas side.__0 -> side.__0 -1mm
+measy center.__1 >> center.__0 2.3mm
+measy pad.__1 >> pad.__1 3.5mm
+measy pad.__1 -> pad.__0 1mm
+meas pad.__1 -> pad.__2 -1mm
+measy paste_pad.__1 -> paste_pad.__0 1.8mm
+measy paste.__0 -> paste.__0 -C1
+measy paste_pad.__1 >> paste_pad.__0 -C1-1mm

modules/qfp.fpd

@@ -0,0 +1,73 @@
+/* MACHINE-GENERATED ! */
+
+frame pad {
+	set px = (dx*X1+dy*Y1)/2
+
+	set py = (dy*X1+dx*Y1)/2
+
+	set pin = side*pins/4+i+1
+
+	__0: vec @(px, py)
+	__1: vec @(-px, -py)
+	pad "$pin" __0 .
+}
+
+frame side {
+	set pos = i-(pins/4-1)/2
+
+	loop i = 0, pins/4-1
+
+	__0: vec @(e*pos*dx, e*pos*dy)
+	frame pad .
+}
+
+frame pads {
+	table
+	    { side, dx, dy }
+	    { 0, 0, -1 }
+	    { 1, 1, 0 }
+	    { 2, 0, 1 }
+	    { 3, -1, 0 }
+
+	__0: vec @(dy*C1/2, -dx*C2/2)
+	frame side .
+}
+
+frame index {
+}
+
+frame outline {
+	set mx = D1/2
+
+	set my = E1/2
+
+	set cf = 0.8
+
+	set rf = (1-cf)/2
+
+	set r = mx*rf
+
+	__0: vec @(mx, my)
+	__1: vec @(-mx, -my)
+	rect . __0 w
+	__2: vec @(-mx*cf, my*cf)
+	__3: vec .(0mm, r)
+	circ __2 . w
+}
+
+package "$name"
+unit mm
+
+table
+    { name, pins, X1, Y1, e, C1, C2, D1, E1 }
+    { "LQFP32", 32, 0.55mm, 1.3mm, 0.8mm, 8.45mm, 8.45mm, 7mm, 7mm }
+
+set X2 = X1+(pins/4-1)*E
+
+set Y2 = X2
+
+set w = 5mil
+
+frame pads @
+frame outline @
+measy pad.__1 -> pad.__0 1mm