[ERC][KiCad 7] Added option to specify the grid size

- `erc_grid` to specify the grid size for KiCad 7 ERC tests

See https://gitlab.com/kicad/code/kicad/-/issues/14110

CHANGELOG.md

@@ -7,10 +7,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [1.6.1] - UNRELEASED
 ### Added
 - Global options:
-  - allow_blind_buried_vias and allow_microvias for KiCad 7 (no longer in KiCad)
+  - `allow_blind_buried_vias` and `allow_microvias` for KiCad 7 (no longer in KiCad)
+  - `erc_grid` to specify the grid size for KiCad 7 ERC tests
 - Report:
-  - Counters for total vias and by via type (vias_count, thru_vias_count,
+  - Counters for total vias and by via type (`vias_count`, `thru_vias_count`,
-    blind_vias_count and micro_vias_count)
+    `blind_vias_count` and `micro_vias_count`)
   - Warnings when micro and/or blind vias aren't allowed, but we found them.
 
 ### Fixed

README.md

@@ -136,7 +136,7 @@ Notes:
 [**Requests**](https://pypi.org/project/Requests/) [![Python module](https://raw.githubusercontent.com/INTI-CMNB/KiBot/master/docs/images/Python-logo-notext-22x22.png)](https://pypi.org/project/Requests/) [![PyPi dependency](https://raw.githubusercontent.com/INTI-CMNB/KiBot/master/docs/images/PyPI_logo_simplified-22x22.png)](https://pypi.org/project/Requests/) [![Debian](https://raw.githubusercontent.com/INTI-CMNB/KiBot/master/docs/images/debian-openlogo-22x22.png)](https://packages.debian.org/bullseye/python3-requests)
 - Mandatory
 
-[**KiCad Automation tools**](https://github.com/INTI-CMNB/KiAuto) v2.2.0 [![Tool](https://raw.githubusercontent.com/INTI-CMNB/KiBot/master/docs/images/llave-inglesa-22x22.png)](https://github.com/INTI-CMNB/KiAuto)![PyPi dependency](https://raw.githubusercontent.com/INTI-CMNB/KiBot/master/docs/images/PyPI_logo_simplified-22x22.png) ![Auto-download](https://raw.githubusercontent.com/INTI-CMNB/KiBot/master/docs/images/auto_download-22x22.png)
+[**KiCad Automation tools**](https://github.com/INTI-CMNB/KiAuto) v2.2.1 [![Tool](https://raw.githubusercontent.com/INTI-CMNB/KiBot/master/docs/images/llave-inglesa-22x22.png)](https://github.com/INTI-CMNB/KiAuto)![PyPi dependency](https://raw.githubusercontent.com/INTI-CMNB/KiBot/master/docs/images/PyPI_logo_simplified-22x22.png) ![Auto-download](https://raw.githubusercontent.com/INTI-CMNB/KiBot/master/docs/images/auto_download-22x22.png)
 - Mandatory for: `dxf_sch_print`, `gencad`, `hpgl_sch_print`, `netlist`, `pdf_pcb_print`, `pdf_sch_print`, `ps_sch_print`, `render_3d`, `run_drc`, `run_erc`, `step`, `svg_pcb_print`, `svg_sch_print`, `update_xml`, `vrml`
 - Optional to:
   - Compare schematics for `diff` (v2.2.0)
@@ -785,6 +785,10 @@ global:
         - `templates`: [string=''] System level templates dir. KiCad 5: KICAD_TEMPLATE_DIR. KiCad 6: KICAD6_TEMPLATE_DIR.
         - `third_party`: [string=''] 3rd party dir. KiCad 6: KICAD6_3RD_PARTY.
         - `user_templates`: [string=''] User level templates dir. KiCad 5/6: KICAD_USER_TEMPLATE_DIR.
+    - `erc_grid`: [number=50] Grid size used for the ERC. This value must be in mils.
+                  This is needed for KiCad 7 in order to run the off grid check.
+                  Shouldn't be needed in KiCad 8.
+                  https://gitlab.com/kicad/code/kicad/-/issues/14110.
     - `extra_pth_drill`: [number=0.1] How many millimeters the manufacturer will add to plated holes.
                          This is because the plating reduces the hole, so you need to use a bigger drill.
                          For more information consult: https://www.eurocircuits.com/pcb-design-guidelines/drilled-holes/.

kibot/globals.py

@@ -251,6 +251,11 @@ class Globals(FiltersOptions):
             self.allow_microvias = True
             """ Allow the use of micro vias. This value is only used for KiCad 7+.
                 For KiCad 5 and 6 use the design rules settings, stored in the project """
+            self.erc_grid = 50
+            """ Grid size used for the ERC. This value must be in mils.
+                This is needed for KiCad 7 in order to run the off grid check.
+                Shouldn't be needed in KiCad 8.
+                https://gitlab.com/kicad/code/kicad/-/issues/14110 """
         self.set_doc('filters', " [list(dict)] KiBot warnings to be ignored ")
         self._filter_what = 'KiBot warnings'
         self.filters = FilterOptionsKiBot

kibot/gs.py

@@ -166,6 +166,7 @@ class GS(object):
     # Only for v7+
     global_allow_blind_buried_vias = None
     global_allow_microvias = None
+    global_erc_grid = None
 
     @staticmethod
     def set_sch(name):

kibot/pre_run_erc.py

@@ -8,7 +8,7 @@ Dependencies:
   - from: KiAuto
     role: mandatory
     command: eeschema_do
-    version: 1.5.4
+    version: 2.2.1
 """
 import os
 from sys import exit
@@ -53,7 +53,7 @@ class Run_ERC(BasePreFlight):  # noqa: F821
         output = self.get_targets()[0]
         os.makedirs(os.path.dirname(output), exist_ok=True)
         logger.debug('ERC report: '+output)
-        cmd = [command, 'run_erc', '-o', output]
+        cmd = [command, 'run_erc', '-o', output, '-g', str(GS.global_erc_grid)]
         if BasePreFlight.get_option('erc_warnings'):  # noqa: F821
             cmd.append('-w')
         if GS.filter_file:

src/kibot-check

@@ -584,9 +584,9 @@ deps = '{\
                 "max_version": null,\
                 "output": "run_erc",\
                 "version": [\
-                    1,\
+                    2,\
-                    5,\
+                    2,\
-                    4\
+                    1\
                 ]\
             },\
             {\

tests/board_samples/kicad_7/off-grid.kicad_sch

@@ -0,0 +1,93 @@
+(kicad_sch (version 20230121) (generator eeschema)
+
+  (uuid 6f532429-0896-42e9-8f7d-55f1e3ab1171)
+
+  (paper "A4")
+
+  (lib_symbols
+    (symbol "Device:R" (pin_numbers hide) (pin_names (offset 0)) (in_bom yes) (on_board yes)
+      (property "Reference" "R" (at 2.032 0 90)
+        (effects (font (size 1.27 1.27)))
+      )
+      (property "Value" "R" (at 0 0 90)
+        (effects (font (size 1.27 1.27)))
+      )
+      (property "Footprint" "" (at -1.778 0 90)
+        (effects (font (size 1.27 1.27)) hide)
+      )
+      (property "Datasheet" "~" (at 0 0 0)
+        (effects (font (size 1.27 1.27)) hide)
+      )
+      (property "ki_keywords" "R res resistor" (at 0 0 0)
+        (effects (font (size 1.27 1.27)) hide)
+      )
+      (property "ki_description" "Resistor" (at 0 0 0)
+        (effects (font (size 1.27 1.27)) hide)
+      )
+      (property "ki_fp_filters" "R_*" (at 0 0 0)
+        (effects (font (size 1.27 1.27)) hide)
+      )
+      (symbol "R_0_1"
+        (rectangle (start -1.016 -2.54) (end 1.016 2.54)
+          (stroke (width 0.254) (type default))
+          (fill (type none))
+        )
+      )
+      (symbol "R_1_1"
+        (pin passive line (at 0 3.81 270) (length 1.27)
+          (name "~" (effects (font (size 1.27 1.27))))
+          (number "1" (effects (font (size 1.27 1.27))))
+        )
+        (pin passive line (at 0 -3.81 90) (length 1.27)
+          (name "~" (effects (font (size 1.27 1.27))))
+          (number "2" (effects (font (size 1.27 1.27))))
+        )
+      )
+    )
+  )
+
+
+
+  (wire (pts (xy 161.925 38.1) (xy 161.925 45.72))
+    (stroke (width 0) (type default))
+    (uuid 511cb90c-9c72-4b77-aff9-f6affb9d333a)
+  )
+  (wire (pts (xy 165.735 38.1) (xy 161.925 38.1))
+    (stroke (width 0) (type default))
+    (uuid 659e802d-922c-460c-9d90-71ca26b9b1b0)
+  )
+  (wire (pts (xy 161.925 45.72) (xy 165.735 45.72))
+    (stroke (width 0) (type default))
+    (uuid b365109d-87cc-4f98-affd-eaffb73c3dba)
+  )
+
+  (symbol (lib_id "Device:R") (at 165.735 41.91 0) (unit 1)
+    (in_bom yes) (on_board yes) (dnp no) (fields_autoplaced)
+    (uuid 08cbd42b-5f2a-4de7-b48e-3bd4b6c520d0)
+    (property "Reference" "R1" (at 168.275 41.275 0)
+      (effects (font (size 1.27 1.27)) (justify left))
+    )
+    (property "Value" "R" (at 168.275 43.815 0)
+      (effects (font (size 1.27 1.27)) (justify left))
+    )
+    (property "Footprint" "" (at 163.957 41.91 90)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (property "Datasheet" "~" (at 165.735 41.91 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (pin "1" (uuid 42622943-c02d-4a96-9a8b-08cf61caa6e6))
+    (pin "2" (uuid 5a1dcc55-9ffd-4afd-aeaa-50f889f94480))
+    (instances
+      (project "pp"
+        (path "/6f532429-0896-42e9-8f7d-55f1e3ab1171"
+          (reference "R1") (unit 1)
+        )
+      )
+    )
+  )
+
+  (sheet_instances
+    (path "/" (page "1"))
+  )
+)

tests/test_plot/test_preflight.py

@@ -80,6 +80,19 @@ def test_erc_warning_2(test_dir):
     ctx.clean_up()
 
 
+@pytest.mark.slow
+@pytest.mark.eeschema
+@pytest.mark.skipif(not context.ki7(), reason="KiCad 7 off grid check")
+def test_erc_off_grid_1(test_dir):
+    """ ERC using 25 mils grid """
+    prj = 'off-grid'
+    ctx = context.TestContextSCH(test_dir, prj, 'erc_grid_25')
+    ctx.run()
+    # Check all outputs are there
+    ctx.expect_out_file(prj+'-erc.txt', sub=True)
+    ctx.clean_up()
+
+
 def test_drc_1(test_dir):
     prj = name = 'bom'
     if context.ki7():

tests/yaml_samples/erc_grid_25.kibot.yaml

@@ -0,0 +1,14 @@
+# Example KiBot config file
+kibot:
+  version: 1
+
+global:
+  erc_grid: 25
+
+preflight:
+  run_erc: true
+  erc_warnings: true
+  filters:
+    - filter: 'Ignore KiCad 6 lib_symbol_issues'
+      error: lib_symbol_issues
+      regex: ''