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modules/qfp-gen.fpd: further improvements (WIP)

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- add rounding,
- add pad numbers, and
- more measurements.

Alas, the geometry still doesn't look quite right: in the 32 pin
package, the pads seem short and too wide. In the 48 pin version,
it's the opposite.
This commit is contained in:
Werner Almesberger 2012-05-29 21:52:30 -03:00
parent 983ee35126
commit 20b7c5f395
1 changed files with 23 additions and 8 deletions
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31
modules/qfp-gen.fpd
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@ -1,5 +1,12 @@
/* MACHINE-GENERATED ! */
frame meas_aux {
set ?dy = -1
__0: vec @(-wx/2, -wy/2)
__1: vec @(wx/2, wy/2)
}
frame land {
table
{ dx, dy, n }
@ -23,9 +30,10 @@ frame land {
__0: vec @(ix, iy)
__1: vec .(sx, sy)
__2: vec .(ox-ix, oy-iy)
frame meas_aux .
__4: vec .(wx/2, wy/2)
__3: vec __1(-wx/2, -wy/2)
pad "?" . __4
pad "$n" . __4
__5: vec @((ix+ox)/2, (iy+oy)/2)
}
@ -71,14 +79,21 @@ table
{ F, P }
{ pcb_tolerance, placement_tolerance }
set Zmax = Dmin+2*Jt+sqrt(Cl*Cl+F*F+P*P)
set Zmax_raw = Dmin+2*Jt+sqrt(Cl*Cl+F*F+P*P)
set Gmin = Smax-2*Jh-sqrt(Cs*Cs+F*F+P*P)
set Gmin_raw = Smax-2*Jh-sqrt(Cs*Cs+F*F+P*P)
set Xmax = b1min+2*Js+sqrt(Cw*Cw+F*F+P*P)
set Xmax_raw = b1min+2*Js+sqrt(Cw*Cw+F*F+P*P)
set Zmax = floor(Zmax_raw/Jt_round+0.5)*Jt_round
set Gmin = floor(Gmin_raw/Jh_round+0.5)*Jh_round
set Xmax = floor(Xmax_raw/Js_round+0.5)*Js_round
frame land @
measy land.__2 -> land.__1 1mm
measy land.__0 >> land.__0
measy land.__2 >> land.__4 4mm
measy land.__5 >> land.__5 6mm
measy land.__2 -> land.__1 -7mm
measy land.__0 >> land.__0 6mm
measy land.__2 >> land.__4 5mm
measy land.__5 >> land.__5 7mm
measx meas_aux.__0 -> land.__4 -1mm