kicad-libs/modules/lga.fpd

/* MACHINE-GENERATED ! */

frame piny {
	table
	    { ?cw, name }
	    { 0, i*f+a }
	    { 1, pins-a-i*f-nx+1 }

	__0: vec @(dx*(pyy/2+pe), pyx/2)
	__1: vec @(-dx*pyy/2, -pyx/2)
	pad "$name" . __0
}

frame pinsy {
	set y = e*(i-(ny-1)/2)

	set x = sx/2-pyy/2-b

	table
	    { dx, f, a }
	    { -1, -1, ny }
	    { 1, 1, pins-ny-nx+1 }

	loop i = 0, ny-1

	__0: vec @(x*dx, y)
	frame piny .
}

frame pinx {
	table
	    { ?cw, name }
	    { 0, i*f+a }
	    { 1, a+(nx-i-1)*f }

	__0: vec @(pxx/2, -dy*pxy/2)
	__1: vec @(-pxx/2, dy*pxy/2)
	__2: vec .(0mm, dy*pe)
	pad "$name" . __0
}

frame outline {
	set corner = gap*2-(w+0.2mm)/sqrt(2)

	__0: vec @(sx/2, sy/2)
	__1: vec .(gap, gap)
	__2: vec @(-sx/2, -sy/2)
	__3: vec .(-gap, -gap)
	rect . __1 w
	__4: vec @((cw*2-1)*sx/2, sy/2)
	__5: vec .((cw*2-1)*gap, gap)
	__6: vec .((1-cw*2)*corner, 0mm)
	__7: vec __5(0mm, -corner)
	line . __6 w
}

frame pinsx {
	set x = e*(i-(nx-1)/2)

	set y = sy/2-pxy/2-b

	table
	    { dy, f, a }
	    { -1, 1, ny+1 }
	    { 1, -1, pins }

	loop i = 0, nx-1

	__0: vec @(x, y*dy)
	frame pinx .
}

package "LGA-$pins-${sizex}x${sizey}${variant}"
unit mm

table
    { variant, nx, ny, sx, sy, e, b, pxx, pxy, pyx, pyy, pe, cw }
    { "", 3, 5, 3mm, 3mm, 0.5mm, 0.1mm, 0.25mm, 0.35mm, pxx, pxy, 0.2mm, 0 }
    { "-BME280", 0, 4, 2.5mm, 2.5mm, 0.65mm, 0.125mm, 0.35mm, 0.35mm, pxx, pxy, 0.15mm, 1 }
    { "-BMX055", 3, 7, 3mm, 4.5mm, 0.5mm, 0.1mm, 0.25mm, 0.375mm, pxx, 0.475mm, 0.2mm, 1 }

set pins = 2*(nx+ny)

set sizex = sx/1mm

set sizey = sy/1mm

set w = 5mil

set gap = 0.2mm+w/2+0.1mm

frame pinsx @
frame pinsy @
frame outline @
measx outline.__2 >> outline.__0 -1.5mm
measy outline.__2 >> outline.__0 1.5mm
measx pinsx.__0 -> pinsx.__0 -1.5mm
measx pinx.__2 -> pinx.__0 pxy+0.5mm
measy pinx.__1 -> pinx.__0 0.2mm
measy pinx.__2 -> pinx.__1 0.2mm
measy outline.__3 >> outline.__5 1.5mm
measx outline.__3 >> outline.__1 -1.5mm
measy pinx.__1 >> outline.__2 -0.5mm
measx piny.__0 -> piny.__1
measx piny.__1 -> piny.__1 0.8mm
measx piny.__0 -> piny.__0 1mm
measy pinsy.__0 -> pinsy.__0 1mm
measy pinx.__0 -> pinx.__0 2.2mm