mirror of
git://projects.qi-hardware.com/kicad-libs.git
synced 2024-11-22 19:41:33 +02:00
e01b8d64f9
This package is more BGA than QFN, but let's see how this goes. Since AD provide footprints for this package only in the proprietary BXL format, all the parameters are best guesses.
131 lines
2.4 KiB
Plaintext
131 lines
2.4 KiB
Plaintext
/* MACHINE-GENERATED ! */
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frame paste_pad {
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__0: vec @(SX/2, SY/2)
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__1: vec @(-SX/2, -SY/2)
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pad " " . __0 paste
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}
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frame paste {
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set x = SE*(xi-SNX/2-0.5)
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set y = SE*(yi-SNY/2-0.5)
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loop xi = 1, SNX
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loop yi = 1, SNY
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__0: vec @(x, y)
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frame paste_pad .
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}
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frame center {
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set pin = pins+1
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__0: vec @(X2/2, Y2/2)
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__1: vec @(-X2/2, -Y2/2)
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pad "$pin" . __0 bare
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frame paste @
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}
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frame pad {
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set px = (dx*X1+dy*Y1)/2
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set py = (dy*X1+dx*Y1)/2
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set pin = side*pins/4+i+1
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__0: vec @(px, py)
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__1: vec @(-px, -py)
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pad "$pin" __0 .
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__2: vec @(px, -py)
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}
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frame side {
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set pos = i-(pins/4-1)/2
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loop i = 0, pins/4-1
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__0: vec @(E*pos*dx, E*pos*dy)
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frame pad .
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}
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frame pads {
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table
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{ side, dx, dy }
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{ 0, 0, -1 }
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{ 1, 1, 0 }
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{ 2, 0, 1 }
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{ 3, -1, 0 }
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__0: vec @(dy*C1/2, -dx*C2/2)
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frame side .
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}
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frame index {
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}
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frame outline {
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table
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{ index, dx, _, dy }
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{ 1, -1, 0, 0 }
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{ 0, 0, 0, -1 }
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{ 0, 1, 0, 0 }
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{ 0, 0, 0, 1 }
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set mx = dx*C1/2
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set my = dy*C2/2
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set cx = mx+my
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set cy = my-mx
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set ax = -Y1/2*dx
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set ay = -Y1/2*dy
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set bx = -Y1/2*dy
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set by = Y1/2*dx
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__0: vec @(cx, cy)
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w: vec .(ax, ay)
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line __0 . w
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__2: vec __0(bx, by)
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line __0 . w
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__1: vec .(index*(ax-bx), index*(ay-by))
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line __2 . w
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}
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package "QFN$pins-$variant"
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unit auto
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table
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{ pins, variant, X1, Y1, X2, Y2, E, C1, C2, SE, SNX, SNY, SX, SY }
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{ 16, "LFCSP_LQ", 0.35mm, 1.2mm, 2.43mm, 2.43mm, 0.65mm, 4.1mm, 4.1mm, 1mm, 2, 2, 0.7mm, 0.7mm }
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{ 28, "Atmel", 0.24mm, 0.7mm, 2.4mm, 2.4mm, 0.45mm, 4.1mm, 4.1mm, 1mm, 2, 2, 0.8mm, 0.8mm }
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{ 28, "MCHP-ML", 0.37mm, 1mm, 4.25mm, 4.25mm, 0.65mm, 5.7mm, 5.7mm, 1mm, 3, 3, 0.65mm, 0.65mm }
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{ 28, "SiLabs", 0.25mm, 0.9mm, 3.3mm, 3.3mm, 0.5mm, 4.8mm, 4.8mm, 1.1mm, 3, 3, 0.9mm, 0.9mm }
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{ 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 }
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{ 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 }
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set w = 5mil
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set zone_ratio_35 = ((SNX-1)*SE+SX)*((SNY-1)*SE+SY)/(X2*Y2)
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set paste_ratio_20 = SX*SY*SNX*SNY/(X2*Y2)
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frame pads @
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frame center @
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frame outline @
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measy side.__0 >> side.__0 3mm
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meas side.__0 -> side.__0 -1mm
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measy center.__1 >> center.__0 2.3mm
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measy pad.__1 >> pad.__1 3.5mm
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measy pad.__1 -> pad.__0 1mm
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meas pad.__1 -> pad.__2 -1mm
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measy paste_pad.__1 -> paste_pad.__0 1.8mm
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measy paste.__0 -> paste.__0 -C1
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measy paste_pad.__1 >> paste_pad.__0 -C1-1mm
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