Added support for the controlled impedance flag in KiCad 6

kibot/globals.py

@@ -83,6 +83,9 @@ class Globals(FiltersOptions):
             self.copper_thickness = 35
             """ Copper thickness in micrometers (1 Oz is 35 micrometers).
                 KiCad 6: you should set this in the Board Setup -> Physical Stackup """
+            self.impedance_controlled = False
+            """ The PCB needs specific dielectric characteristics.
+                KiCad 6: you should set this in the Board Setup -> Physical Stackup """
         self.set_doc('filters', " [list(dict)] KiBot warnings to be ignored ")
         self._filter_what = 'KiBot warnings'
         self._unkown_is_error = True
@@ -172,6 +175,9 @@ class Globals(FiltersOptions):
                 elif name == 'edge_plating':
                     self.edge_plating = value == 'yes'
                     logger.debug("- Edge plating: "+value)
+                elif name == 'dielectric_constraints':
+                    self.impedance_controlled = value == 'yes'
+                    logger.debug("- Impedance controlled: "+value)
                 elif name == 'layer':
                     ly = PCBLayer.parse(e)
                     stackup.append(ly)

kibot/gs.py

@@ -98,6 +98,7 @@ class GS(object):
     global_edge_connector = None
     global_castellated_pads = None
     global_edge_plating = None
+    global_impedance_controlled = None
     test_boolean = True
     stackup = None
 

kibot/out_report.py

@@ -527,6 +527,7 @@ class ReportOptions(BaseOptions):
         self.castellated_pads = GS.global_castellated_pads
         self.edge_plating = GS.global_edge_plating
         self.copper_thickness = GS.global_copper_thickness
+        self.impedance_controlled = GS.global_impedance_controlled
         self.stackup = 'yes' if GS.stackup else ''
         self._stackup = GS.stackup if GS.stackup else []
         self.collect_data(GS.board)

kibot/report_templates/report_full.txt

@@ -23,12 +23,14 @@ Special features:
 
 #?stackup
 Stackup:
+#?stackup and impedance_controlled
+Impedance controlled: YES
 #?stackup
 | Name                 | Type                 | Color    | Thickness | Material        | Epsilon_r | Loss tangent |
 #?stackup
-|----------------------|----------------------|----------|-----------|----------|-----------|--------------|
+|----------------------|----------------------|----------|-----------|-----------------|-----------|--------------|
 #?stackup
-#stackup:| ${%-20s,name} | ${%-20s,type} | ${%-8s,color} | ${%9d,thickness} | ${%-8s,material} | ${%9.1f,epsilon_r} | ${%12.2f,loss_tangent} |
+#stackup:| ${%-20s,name} | ${%-20s,type} | ${%-8s,color} | ${%9d,thickness} | ${%-15s,material} | ${%9.1f,epsilon_r} | ${%12.2f,loss_tangent} |
 #?stackup
 
 # Important sizes

kibot/report_templates/report_simple.txt

@@ -20,12 +20,14 @@ Special features:
 
 #?stackup
 Stackup:
+#?stackup and impedance_controlled
+Impedance controlled: YES
 #?stackup
 | Name                 | Type                 | Color    | Thickness | Material        | Epsilon_r | Loss tangent |
 #?stackup
-|----------------------|----------------------|----------|-----------|----------|-----------|--------------|
+|----------------------|----------------------|----------|-----------|-----------------|-----------|--------------|
 #?stackup
-#stackup:| ${%-20s,name} | ${%-20s,type} | ${%-8s,color} | ${%9d,thickness} | ${%-8s,material} | ${%9.1f,epsilon_r} | ${%12.2f,loss_tangent} |
+#stackup:| ${%-20s,name} | ${%-20s,type} | ${%-8s,color} | ${%9d,thickness} | ${%-15s,material} | ${%9.1f,epsilon_r} | ${%12.2f,loss_tangent} |
 #?stackup
 
 Materials:

tests/board_samples/kicad_6/light_control.kicad_pcb

@@ -37,21 +37,21 @@
 
   (setup
     (stackup
-      (layer "F.SilkS" (type "Top Silk Screen") (color "White"))
+      (layer "F.SilkS" (type "Top Silk Screen") (color "White") (material "Liquid Photo"))
       (layer "F.Paste" (type "Top Solder Paste"))
-      (layer "F.Mask" (type "Top Solder Mask") (color "Blue") (thickness 0.01))
+      (layer "F.Mask" (type "Top Solder Mask") (color "Blue") (thickness 0.01) (material "Liquid Ink") (epsilon_r 3.3) (loss_tangent 0))
       (layer "F.Cu" (type "copper") (thickness 0.035))
-      (layer "dielectric 1" (type "core") (thickness 0.48) (material "FR4") (epsilon_r 4.5) (loss_tangent 0.02))
+      (layer "dielectric 1" (type "prepreg") (thickness 0.48) (material "FR4") (epsilon_r 4.5) (loss_tangent 0.02))
       (layer "In1.Cu" (type "copper") (thickness 0.035))
-      (layer "dielectric 2" (type "prepreg") (thickness 0.48) (material "FR4") (epsilon_r 4.5) (loss_tangent 0.02))
+      (layer "dielectric 2" (type "core") (thickness 0.48) (material "FR4") (epsilon_r 4.5) (loss_tangent 0.02))
       (layer "In2.Cu" (type "copper") (thickness 0.035))
-      (layer "dielectric 3" (type "core") (thickness 0.48) (material "FR4") (epsilon_r 4.5) (loss_tangent 0.02))
+      (layer "dielectric 3" (type "prepreg") (thickness 0.48) (material "FR4") (epsilon_r 4.5) (loss_tangent 0.02))
       (layer "B.Cu" (type "copper") (thickness 0.035))
-      (layer "B.Mask" (type "Bottom Solder Mask") (color "Red") (thickness 0.01))
+      (layer "B.Mask" (type "Bottom Solder Mask") (color "Red") (thickness 0.01) (material "Dry Film") (epsilon_r 3.3) (loss_tangent 0))
       (layer "B.Paste" (type "Bottom Solder Paste"))
-      (layer "B.SilkS" (type "Bottom Silk Screen") (color "Black"))
+      (layer "B.SilkS" (type "Bottom Silk Screen") (color "Black") (material "Direct Printing"))
       (copper_finish "ENIG")
-      (dielectric_constraints no)
+      (dielectric_constraints yes)
       (edge_connector bevelled)
       (castellated_pads yes)
       (edge_plating yes)