finalize pcb design; add layout file

.gitignore

@@ -9,5 +9,18 @@ firmware/build
 gui/imgui.ini
 gui/stmdspgui
 gui/stmdspgui.exe
+hardware/fp-info-cache
 hardware/*-backups
 hardware/*.kicad_prl
+hardware/*.csv
+hardware/*.gbl
+hardware/*.gbs
+hardware/*.gbp
+hardware/*.gbo
+hardware/*.gm1
+hardware/*.gtl
+hardware/*.gts
+hardware/*.gtp
+hardware/*.gto
+hardware/*.drl
+hardware/*.zip

hardware/DSP PAW add-on board.kicad_pro

@@ -3,26 +3,192 @@
     "3dviewports": [],
     "design_settings": {
       "defaults": {
-        "board_outline_line_width": 0.1,
-        "copper_line_width": 0.2,
+        "board_outline_line_width": 0.09999999999999999,
+        "copper_line_width": 0.19999999999999998,
+        "copper_text_italic": false,
         "copper_text_size_h": 1.5,
         "copper_text_size_v": 1.5,
         "copper_text_thickness": 0.3,
+        "copper_text_upright": false,
+        "courtyard_line_width": 0.049999999999999996,
+        "dimension_precision": 4,
+        "dimension_units": 3,
+        "dimensions": {
+          "arrow_length": 1270000,
+          "extension_offset": 500000,
+          "keep_text_aligned": true,
+          "suppress_zeroes": false,
+          "text_position": 0,
+          "units_format": 1
+        },
+        "fab_line_width": 0.09999999999999999,
+        "fab_text_italic": false,
+        "fab_text_size_h": 1.0,
+        "fab_text_size_v": 1.0,
+        "fab_text_thickness": 0.15,
+        "fab_text_upright": false,
         "other_line_width": 0.15,
+        "other_text_italic": false,
+        "other_text_size_h": 1.0,
+        "other_text_size_v": 1.0,
+        "other_text_thickness": 0.15,
+        "other_text_upright": false,
+        "pads": {
+          "drill": 1.0,
+          "height": 8.0,
+          "width": 1.0
+        },
         "silk_line_width": 0.15,
+        "silk_text_italic": false,
         "silk_text_size_h": 1.0,
         "silk_text_size_v": 1.0,
-        "silk_text_thickness": 0.15
+        "silk_text_thickness": 0.15,
+        "silk_text_upright": false,
+        "zones": {
+          "min_clearance": 0.25
+        }
+      },
+      "diff_pair_dimensions": [
+        {
+          "gap": 0.0,
+          "via_gap": 0.0,
+          "width": 0.0
+        }
+      ],
+      "drc_exclusions": [
+        "lib_footprint_mismatch|146968750|88495000|d2aefee4-de29-456d-afff-5c2c101f4674|00000000-0000-0000-0000-000000000000",
+        "lib_footprint_mismatch|150218750|86995000|d2aefee4-de29-456d-afff-5c2c101f4674|00000000-0000-0000-0000-000000000000",
+        "lib_footprint_mismatch|172056920|76359492|6e56ba3f-444a-46d5-a1a4-0a13bdcad72a|00000000-0000-0000-0000-000000000000",
+        "lib_footprint_mismatch|174000000|84500000|b094d6cc-194b-4f39-979a-d204c7caeddc|00000000-0000-0000-0000-000000000000",
+        "lib_footprint_mismatch|177600000|74900000|43bf6a24-f35b-46a4-974c-4c658f0c1038|00000000-0000-0000-0000-000000000000"
+      ],
+      "meta": {
+        "version": 2
+      },
+      "rule_severities": {
+        "annular_width": "error",
+        "clearance": "error",
+        "connection_width": "warning",
+        "copper_edge_clearance": "error",
+        "copper_sliver": "warning",
+        "courtyards_overlap": "error",
+        "diff_pair_gap_out_of_range": "error",
+        "diff_pair_uncoupled_length_too_long": "error",
+        "drill_out_of_range": "error",
+        "duplicate_footprints": "warning",
+        "extra_footprint": "warning",
+        "footprint": "error",
+        "footprint_type_mismatch": "ignore",
+        "hole_clearance": "error",
+        "hole_near_hole": "error",
+        "invalid_outline": "error",
+        "isolated_copper": "warning",
+        "item_on_disabled_layer": "error",
+        "items_not_allowed": "error",
+        "length_out_of_range": "error",
+        "lib_footprint_issues": "warning",
+        "lib_footprint_mismatch": "warning",
+        "malformed_courtyard": "error",
+        "microvia_drill_out_of_range": "error",
+        "missing_courtyard": "ignore",
+        "missing_footprint": "warning",
+        "net_conflict": "warning",
+        "npth_inside_courtyard": "warning",
+        "padstack": "warning",
+        "pth_inside_courtyard": "warning",
+        "shorting_items": "error",
+        "silk_edge_clearance": "ignore",
+        "silk_over_copper": "warning",
+        "silk_overlap": "warning",
+        "skew_out_of_range": "error",
+        "solder_mask_bridge": "error",
+        "starved_thermal": "error",
+        "text_height": "warning",
+        "text_thickness": "warning",
+        "through_hole_pad_without_hole": "error",
+        "too_many_vias": "error",
+        "track_dangling": "warning",
+        "track_width": "error",
+        "tracks_crossing": "error",
+        "unconnected_items": "error",
+        "unresolved_variable": "error",
+        "via_dangling": "warning",
+        "zones_intersect": "error"
       },
-      "diff_pair_dimensions": [],
-      "drc_exclusions": [],
       "rules": {
+        "max_error": 0.005,
+        "min_clearance": 0.0,
+        "min_connection": 0.0,
         "min_copper_edge_clearance": 0.0,
+        "min_hole_clearance": 0.25,
+        "min_hole_to_hole": 0.25,
+        "min_microvia_diameter": 0.19999999999999998,
+        "min_microvia_drill": 0.09999999999999999,
+        "min_resolved_spokes": 2,
+        "min_silk_clearance": 0.0,
+        "min_text_height": 0.7999999999999999,
+        "min_text_thickness": 0.08,
+        "min_through_hole_diameter": 0.3,
+        "min_track_width": 0.0,
+        "min_via_annular_width": 0.09999999999999999,
+        "min_via_diameter": 0.5,
         "solder_mask_clearance": 0.0,
-        "solder_mask_min_width": 0.0
+        "solder_mask_min_width": 0.0,
+        "solder_mask_to_copper_clearance": 0.0,
+        "use_height_for_length_calcs": true
+      },
+      "teardrop_options": [
+        {
+          "td_allow_use_two_tracks": true,
+          "td_curve_segcount": 5,
+          "td_on_pad_in_zone": false,
+          "td_onpadsmd": true,
+          "td_onroundshapesonly": false,
+          "td_ontrackend": false,
+          "td_onviapad": true
+        }
+      ],
+      "teardrop_parameters": [
+        {
+          "td_curve_segcount": 0,
+          "td_height_ratio": 1.0,
+          "td_length_ratio": 0.5,
+          "td_maxheight": 2.0,
+          "td_maxlen": 1.0,
+          "td_target_name": "td_round_shape",
+          "td_width_to_size_filter_ratio": 0.9
         },
-      "track_widths": [],
-      "via_dimensions": []
+        {
+          "td_curve_segcount": 0,
+          "td_height_ratio": 1.0,
+          "td_length_ratio": 0.5,
+          "td_maxheight": 2.0,
+          "td_maxlen": 1.0,
+          "td_target_name": "td_rect_shape",
+          "td_width_to_size_filter_ratio": 0.9
+        },
+        {
+          "td_curve_segcount": 0,
+          "td_height_ratio": 1.0,
+          "td_length_ratio": 0.5,
+          "td_maxheight": 2.0,
+          "td_maxlen": 1.0,
+          "td_target_name": "td_track_end",
+          "td_width_to_size_filter_ratio": 0.9
+        }
+      ],
+      "track_widths": [
+        0.0,
+        0.0,
+        0.6096
+      ],
+      "via_dimensions": [
+        {
+          "diameter": 0.0,
+          "drill": 0.0
+        }
+      ],
+      "zones_allow_external_fillets": false
     },
     "layer_presets": [],
     "viewports": []

hardware/DSP PAW add-on board.kicad_sch

@@ -6,7 +6,7 @@
 
   (title_block
     (title "DSP PAW add-on board")
-    (date "2023-08-08")
+    (date "2023-08-15")
     (company "bitgloo")
     (comment 1 "Released under the CERN Open Hardware Licence Version 2 - Strongly Reciprocal")
   )
@@ -15,6 +15,7 @@
   )
 
 
+
   (sheet (at 25.4 76.2) (size 50.8 12.7) (fields_autoplaced)
     (stroke (width 0.1524) (type solid))
     (fill (color 0 0 0 0.0000))

hardware/analog_io.kicad_sch

@@ -6,7 +6,7 @@
 
   (title_block
     (title "Analog signal transformation")
-    (date "2023-08-08")
+    (date "2023-08-15")
     (company "bitgloo")
     (comment 1 "Released under the CERN Open Hardware Licence Version 2 - Strongly Reciprocal")
   )
@@ -448,17 +448,14 @@
   (junction (at 54.61 106.68) (diameter 0) (color 0 0 0 0)
     (uuid 6a4bb706-dcc5-4872-b86b-74860967c0eb)
   )
-  (junction (at 128.27 54.61) (diameter 0) (color 0 0 0 0)
-    (uuid 6d4eb889-ecae-423b-aa28-b01041e96c3e)
-  )
   (junction (at 97.79 120.65) (diameter 0) (color 0 0 0 0)
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   (junction (at 101.6 157.48) (diameter 0) (color 0 0 0 0)
     (uuid 771dbe8c-e2bc-40e6-b3f9-d246824bbc97)
   )
-  (junction (at 100.33 57.15) (diameter 0) (color 0 0 0 0)
-    (uuid 792fbb65-a6d1-41e2-9ca9-0934048113bc)
+  (junction (at 128.27 54.61) (diameter 0) (color 0 0 0 0)
+    (uuid 8f551bb9-b5ab-45ea-8b4d-2839e1610959)
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   (junction (at 77.47 54.61) (diameter 0) (color 0 0 0 0)
     (uuid bb0f3e97-91ef-4c38-b0d6-996ae4d77785)
@@ -466,6 +463,9 @@
   (junction (at 53.34 160.02) (diameter 0) (color 0 0 0 0)
     (uuid cd0dc2f5-2bbf-4407-89b7-12f64f275e27)
   )
+  (junction (at 100.33 54.61) (diameter 0) (color 0 0 0 0)
+    (uuid dd16af5d-f004-4be8-9640-006709984bec)
+  )
   (junction (at 96.52 157.48) (diameter 0) (color 0 0 0 0)
     (uuid dd48d0dc-1a30-4855-b672-b884e88b6f39)
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@@ -473,10 +473,6 @@
     (uuid e8de15ad-a3c1-43d2-99e8-9736cc4fc0a7)
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@@ -561,6 +557,10 @@
     (stroke (width 0) (type default))
     (uuid 4bb92711-010f-4110-b584-dbb65656d05c)
   )
+  (wire (pts (xy 59.69 66.04) (xy 59.69 67.31))
+    (stroke (width 0) (type default))
+    (uuid 4c8cc210-1c21-488c-9e59-c03bdd56dc71)
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     (stroke (width 0) (type default))
     (uuid 4f1cbd2b-3712-4e94-908b-3c622c1d113d)
@@ -569,10 +569,6 @@
     (stroke (width 0) (type default))
     (uuid 50d53083-32d0-4e43-bb1c-db7ffa29e205)
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-  (wire (pts (xy 115.57 54.61) (xy 115.57 57.15))
-    (stroke (width 0) (type default))
-    (uuid 53357090-105c-4c23-8dd4-63f08b386d13)
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     (stroke (width 0) (type default))
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@@ -625,6 +621,10 @@
     (stroke (width 0) (type default))
     (uuid 7cc7f718-00da-4907-a8d4-eb46ec038edd)
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+  (wire (pts (xy 128.27 54.61) (xy 132.08 54.61))
+    (stroke (width 0) (type default))
+    (uuid 80a5f8da-7406-4f2c-94e8-189f329f370b)
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     (stroke (width 0) (type default))
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@@ -645,7 +645,7 @@
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-  (wire (pts (xy 100.33 45.72) (xy 100.33 57.15))
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@@ -689,26 +689,22 @@
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-  (wire (pts (xy 132.08 54.61) (xy 128.27 54.61))
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-  (wire (pts (xy 77.47 106.68) (xy 80.01 106.68))
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-    (uuid b008c5f1-2061-4c18-8d4b-e961b69c6221)
+    (uuid afab58f2-ad3a-434f-9c3c-23112e294f9c)
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-  (wire (pts (xy 77.47 59.69) (xy 77.47 66.04))
+  (wire (pts (xy 77.47 106.68) (xy 80.01 106.68))
     (stroke (width 0) (type default))
-    (uuid b5179481-c40d-4aba-81ac-d8bc98db2d31)
+    (uuid b008c5f1-2061-4c18-8d4b-e961b69c6221)
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     (stroke (width 0) (type default))
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-    (stroke (width 0) (type default))
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     (stroke (width 0) (type default))
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@@ -717,10 +713,6 @@
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     (stroke (width 0) (type default))
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@@ -745,6 +737,10 @@
     (stroke (width 0) (type default))
     (uuid d032f367-c762-4ba9-969e-73f235ff53ea)
   )
+  (wire (pts (xy 100.33 54.61) (xy 118.11 54.61))
+    (stroke (width 0) (type default))
+    (uuid d04dcce7-48e3-44ed-b23d-b691eb308d3c)
+  )
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     (stroke (width 0) (type default))
     (uuid d636a217-cad9-421a-9f13-39961341ebe9)
@@ -807,12 +803,8 @@
     (effects (font (size 1.27 1.27)) (justify left bottom))
     (uuid 11759ad9-6dd7-41a3-871a-342ee2b5fb5b)
   )
-  (text "Operational amplifier options:\n - TLV9162: Good for input, low GBW for output\n - OPA1678: Good for output, low stock\n - TL972: Good balance as choice for both (12MHz)\n - MC33078D: Also a good choice for both (15MHz)\n\nInput requires GBW between 8-15MHz; output requires >14.7MHz"
-    (at 209.55 53.34 0)
-    (effects (font (size 1.27 1.27)) (justify left bottom))
-    (uuid 1298cbaa-a693-47ae-987b-082155ee1893)
-  )
-  (text "Low-pass RC filter\nto increase drop beyond Fc" (at 154.94 48.26 0)
+  (text "Optional low-pass RC filter\nto increase attenuation beyond Fc"
+    (at 154.94 48.26 0)
     (effects (font (size 1.27 1.27)) (justify left bottom))
     (uuid 187aacc2-0fff-498f-ae6b-86d2f27b6642)
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@@ -829,7 +821,7 @@
     (effects (font (size 1.27 1.27)) (justify left bottom))
     (uuid 4d37f2a9-553f-44c3-88e8-f0b7f0eb294f)
   )
-  (text "Inverting amplifier\nG = 0.5, Offset = 1V\n0-2V output for MCU"
+  (text "Inverting amplifier\nG = 0.5, Offset = VDDA/2\n0-VDDA output for MCU"
     (at 110.49 38.1 0)
     (effects (font (size 1.27 1.27)) (justify left bottom))
     (uuid 7ff24ca8-45ac-404e-b354-ab2d4f4a4a56)
@@ -843,7 +835,8 @@
     (effects (font (size 1.27 1.27)) (justify left bottom))
     (uuid b339f83c-48d6-4510-8f56-d7e7635e2b35)
   )
-  (text "Low-pass RC filter\nto increase drop beyond Fc" (at 66.04 97.79 0)
+  (text "Optional low-pass RC filter\nto increase attenuation beyond Fc"
+    (at 66.04 97.79 0)
     (effects (font (size 1.27 1.27)) (justify right bottom))
     (uuid b359bad7-cd76-42ef-96c0-69d394af2379)
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@@ -851,7 +844,8 @@
     (effects (font (size 2.54 2.54)) (justify left bottom))
     (uuid b564d06f-c9fd-49a8-a95e-a877b22ac096)
   )
-  (text "Low-pass RC filter\nto increase drop beyond Fc" (at 64.77 151.13 0)
+  (text "Optional low-pass RC filter\nto increase attenuation beyond Fc"
+    (at 64.77 151.13 0)
     (effects (font (size 1.27 1.27)) (justify right bottom))
     (uuid bf8bd8cd-d4f7-44a1-ad1b-31e7ccf62047)
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@@ -945,22 +939,22 @@
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   )
 
-  (symbol (lib_id "Device:R_US") (at 107.95 57.15 90) (unit 1)
+  (symbol (lib_id "Device:R_US") (at 121.92 54.61 90) (unit 1)
     (in_bom yes) (on_board yes) (dnp no) (fields_autoplaced)
     (uuid 09763a12-feda-48e1-afe9-d8a81a7439cb)
-    (property "Reference" "R4" (at 107.95 52.07 90)
+    (property "Reference" "R4" (at 121.92 49.53 90)
       (effects (font (size 1.27 1.27)))
     )
-    (property "Value" "20k" (at 107.95 54.61 90)
+    (property "Value" "20k" (at 121.92 52.07 90)
       (effects (font (size 1.27 1.27)))
     )
-    (property "Footprint" "Resistor_SMD:R_0603_1608Metric" (at 108.204 56.134 90)
+    (property "Footprint" "Resistor_SMD:R_0603_1608Metric" (at 122.174 53.594 90)
       (effects (font (size 1.27 1.27)) hide)
     )
-    (property "Datasheet" "~" (at 107.95 57.15 0)
+    (property "Datasheet" "~" (at 121.92 54.61 0)
       (effects (font (size 1.27 1.27)) hide)
     )
-    (property "Part Number" "RT0603DRE0720KL" (at 107.95 57.15 0)
+    (property "Part Number" "RT0603DRE0720KL" (at 121.92 54.61 0)
       (effects (font (size 1.27 1.27)) hide)
     )
     (pin "1" (uuid 6611f1b9-8e1b-492e-955d-247b29c6d327))
@@ -1082,19 +1076,19 @@
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   )
 
-  (symbol (lib_id "power:GND") (at 59.69 66.04 0) (unit 1)
+  (symbol (lib_id "power:GND") (at 59.69 67.31 0) (unit 1)
     (in_bom yes) (on_board yes) (dnp no) (fields_autoplaced)
     (uuid 1063e76b-79dd-42d8-a5b9-3a1dc5ab4ffd)
-    (property "Reference" "#PWR01" (at 59.69 72.39 0)
+    (property "Reference" "#PWR01" (at 59.69 73.66 0)
       (effects (font (size 1.27 1.27)) hide)
     )
-    (property "Value" "GND" (at 59.69 71.12 0)
+    (property "Value" "GND" (at 59.69 72.39 0)
       (effects (font (size 1.27 1.27)))
     )
-    (property "Footprint" "" (at 59.69 66.04 0)
+    (property "Footprint" "" (at 59.69 67.31 0)
       (effects (font (size 1.27 1.27)) hide)
     )
-    (property "Datasheet" "" (at 59.69 66.04 0)
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       (effects (font (size 1.27 1.27)) hide)
     )
     (pin "1" (uuid 71a3f27d-3333-465a-8fe8-e3dfb6c45173))
@@ -1316,6 +1310,35 @@
     )
   )
 
+  (symbol (lib_id "Device:R_US") (at 77.47 63.5 0) (mirror x) (unit 1)
+    (in_bom yes) (on_board yes) (dnp no)
+    (uuid 3506247d-d8b2-4866-9e71-80075e26ce5e)
+    (property "Reference" "R27" (at 74.93 62.865 0)
+      (effects (font (size 1.27 1.27)) (justify right))
+    )
+    (property "Value" "0" (at 74.93 65.405 0)
+      (effects (font (size 1.27 1.27)) (justify right))
+    )
+    (property "Footprint" "Resistor_SMD:R_0603_1608Metric" (at 78.486 63.246 90)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (property "Datasheet" "~" (at 77.47 63.5 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (property "Part Number" "RMCF0603ZT0R00" (at 77.47 63.5 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (pin "1" (uuid 33f9b795-9ea3-4d69-8541-d3fad31fa8db))
+    (pin "2" (uuid f70bbb94-75ed-40c7-b89a-218c6d65c5b8))
+    (instances
+      (project "DSP PAW add-on board"
+        (path "/c291319b-d76e-4fda-91cc-061acff65f9f/684072e7-f538-4528-bfb8-b14c31b5b1f0"
+          (reference "R27") (unit 1)
+        )
+      )
+    )
+  )
+
   (symbol (lib_id "power:GND") (at 254 113.03 0) (unit 1)
     (in_bom yes) (on_board yes) (dnp no) (fields_autoplaced)
     (uuid 3e30a194-251d-470d-a890-0baee49de02b)
@@ -1495,19 +1518,19 @@
     )
   )
 
-  (symbol (lib_id "power:GND") (at 77.47 66.04 0) (unit 1)
+  (symbol (lib_id "power:GND") (at 77.47 67.31 0) (unit 1)
     (in_bom yes) (on_board yes) (dnp no) (fields_autoplaced)
     (uuid 62a7acc6-bac9-44e6-89a6-1cab2d22ca59)
-    (property "Reference" "#PWR02" (at 77.47 72.39 0)
+    (property "Reference" "#PWR02" (at 77.47 73.66 0)
       (effects (font (size 1.27 1.27)) hide)
     )
-    (property "Value" "GND" (at 77.47 71.12 0)
+    (property "Value" "GND" (at 77.47 72.39 0)
       (effects (font (size 1.27 1.27)))
     )
-    (property "Footprint" "" (at 77.47 66.04 0)
+    (property "Footprint" "" (at 77.47 67.31 0)
       (effects (font (size 1.27 1.27)) hide)
     )
-    (property "Datasheet" "" (at 77.47 66.04 0)
+    (property "Datasheet" "" (at 77.47 67.31 0)
       (effects (font (size 1.27 1.27)) hide)
     )
     (pin "1" (uuid 2b2a5e9c-adb3-461c-8665-30285382f988))

hardware/power_regulation.kicad_sch

@@ -6,7 +6,7 @@
 
   (title_block
     (title "Power regulation")
-    (date "2023-08-08")
+    (date "2023-08-15")
     (company "bitgloo")
     (comment 1 "Released under the CERN Open Hardware Licence Version 2 - Strongly Reciprocal")
   )
@@ -395,6 +395,58 @@
         )
       )
     )
+    (symbol "power:+5VD" (power) (pin_names (offset 0)) (in_bom yes) (on_board yes)
+      (property "Reference" "#PWR" (at 0 -3.81 0)
+        (effects (font (size 1.27 1.27)) hide)
+      )
+      (property "Value" "+5VD" (at 0 3.556 0)
+        (effects (font (size 1.27 1.27)))
+      )
+      (property "Footprint" "" (at 0 0 0)
+        (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" "global power" (at 0 0 0)
+        (effects (font (size 1.27 1.27)) hide)
+      )
+      (property "ki_description" "Power symbol creates a global label with name \"+5VD\"" (at 0 0 0)
+        (effects (font (size 1.27 1.27)) hide)
+      )
+      (symbol "+5VD_0_1"
+        (polyline
+          (pts
+            (xy -0.762 1.27)
+            (xy 0 2.54)
+          )
+          (stroke (width 0) (type default))
+          (fill (type none))
+        )
+        (polyline
+          (pts
+            (xy 0 0)
+            (xy 0 2.54)
+          )
+          (stroke (width 0) (type default))
+          (fill (type none))
+        )
+        (polyline
+          (pts
+            (xy 0 2.54)
+            (xy 0.762 1.27)
+          )
+          (stroke (width 0) (type default))
+          (fill (type none))
+        )
+      )
+      (symbol "+5VD_1_1"
+        (pin power_in line (at 0 0 90) (length 0) hide
+          (name "+5VD" (effects (font (size 1.27 1.27))))
+          (number "1" (effects (font (size 1.27 1.27))))
+        )
+      )
+    )
     (symbol "power:-5V" (power) (pin_names (offset 0)) (in_bom yes) (on_board yes)
       (property "Reference" "#PWR" (at 0 2.54 0)
         (effects (font (size 1.27 1.27)) hide)
@@ -475,58 +527,6 @@
         )
       )
     )
-    (symbol "power:VBUS" (power) (pin_names (offset 0)) (in_bom yes) (on_board yes)
-      (property "Reference" "#PWR" (at 0 -3.81 0)
-        (effects (font (size 1.27 1.27)) hide)
-      )
-      (property "Value" "VBUS" (at 0 3.81 0)
-        (effects (font (size 1.27 1.27)))
-      )
-      (property "Footprint" "" (at 0 0 0)
-        (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" "global power" (at 0 0 0)
-        (effects (font (size 1.27 1.27)) hide)
-      )
-      (property "ki_description" "Power symbol creates a global label with name \"VBUS\"" (at 0 0 0)
-        (effects (font (size 1.27 1.27)) hide)
-      )
-      (symbol "VBUS_0_1"
-        (polyline
-          (pts
-            (xy -0.762 1.27)
-            (xy 0 2.54)
-          )
-          (stroke (width 0) (type default))
-          (fill (type none))
-        )
-        (polyline
-          (pts
-            (xy 0 0)
-            (xy 0 2.54)
-          )
-          (stroke (width 0) (type default))
-          (fill (type none))
-        )
-        (polyline
-          (pts
-            (xy 0 2.54)
-            (xy 0.762 1.27)
-          )
-          (stroke (width 0) (type default))
-          (fill (type none))
-        )
-      )
-      (symbol "VBUS_1_1"
-        (pin power_in line (at 0 0 90) (length 0) hide
-          (name "VBUS" (effects (font (size 1.27 1.27))))
-          (number "1" (effects (font (size 1.27 1.27))))
-        )
-      )
-    )
     (symbol "power:VDDA" (power) (pin_names (offset 0)) (in_bom yes) (on_board yes)
       (property "Reference" "#PWR" (at 0 -3.81 0)
         (effects (font (size 1.27 1.27)) hide)
@@ -1109,34 +1109,6 @@
     )
   )
 
-  (symbol (lib_id "power:VBUS") (at 96.52 66.04 0) (unit 1)
-    (in_bom yes) (on_board yes) (dnp no) (fields_autoplaced)
-    (uuid 63c1a517-0671-47d3-812d-286119ebbe57)
-    (property "Reference" "#PWR061" (at 96.52 69.85 0)
-      (effects (font (size 1.27 1.27)) hide)
-    )
-    (property "Value" "VBUS" (at 96.52 62.23 0)
-      (effects (font (size 1.27 1.27)))
-    )
-    (property "Footprint" "" (at 96.52 66.04 0)
-      (effects (font (size 1.27 1.27)) hide)
-    )
-    (property "Datasheet" "" (at 96.52 66.04 0)
-      (effects (font (size 1.27 1.27)) hide)
-    )
-    (pin "1" (uuid 2af5903d-2193-42bc-bea6-926b80d80d0b))
-    (instances
-      (project "DSP PAW add-on board"
-        (path "/c291319b-d76e-4fda-91cc-061acff65f9f/270d19d2-3af2-41db-ad1c-33373417ec82"
-          (reference "#PWR061") (unit 1)
-        )
-        (path "/c291319b-d76e-4fda-91cc-061acff65f9f/97fc232a-dbc7-49da-a6a0-e33e9aacbabd"
-          (reference "#PWR017") (unit 1)
-        )
-      )
-    )
-  )
-
   (symbol (lib_id "power:VDDA") (at 222.25 134.62 0) (unit 1)
     (in_bom yes) (on_board yes) (dnp no) (fields_autoplaced)
     (uuid 69a0f71b-0607-484e-b263-de0bffc9a9b5)
@@ -1488,31 +1460,6 @@
     )
   )
 
-  (symbol (lib_id "power:VBUS") (at 59.69 71.12 0) (unit 1)
-    (in_bom yes) (on_board yes) (dnp no)
-    (uuid 980e1d26-93bc-4d43-9367-6ac9398bd11f)
-    (property "Reference" "#PWR022" (at 59.69 74.93 0)
-      (effects (font (size 1.27 1.27)) hide)
-    )
-    (property "Value" "VBUS" (at 59.69 66.04 0)
-      (effects (font (size 1.27 1.27)))
-    )
-    (property "Footprint" "" (at 59.69 71.12 0)
-      (effects (font (size 1.27 1.27)) hide)
-    )
-    (property "Datasheet" "" (at 59.69 71.12 0)
-      (effects (font (size 1.27 1.27)) hide)
-    )
-    (pin "1" (uuid 95a97132-2d2e-42de-810e-996d6d2d517c))
-    (instances
-      (project "DSP PAW add-on board"
-        (path "/c291319b-d76e-4fda-91cc-061acff65f9f/97fc232a-dbc7-49da-a6a0-e33e9aacbabd"
-          (reference "#PWR022") (unit 1)
-        )
-      )
-    )
-  )
-
   (symbol (lib_id "Device:C") (at 119.38 69.85 0) (unit 1)
     (in_bom yes) (on_board yes) (dnp no) (fields_autoplaced)
     (uuid 98f2b9b9-6327-4bc8-b876-121d7ad6905e)
@@ -1774,6 +1721,31 @@
     )
   )
 
+  (symbol (lib_id "power:+5VD") (at 96.52 66.04 0) (unit 1)
+    (in_bom yes) (on_board yes) (dnp no)
+    (uuid b9ed30f6-9480-4a13-8595-659e4d7d956a)
+    (property "Reference" "#PWR017" (at 96.52 69.85 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (property "Value" "+5VD" (at 96.52 60.96 0)
+      (effects (font (size 1.27 1.27)))
+    )
+    (property "Footprint" "" (at 96.52 66.04 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (property "Datasheet" "" (at 96.52 66.04 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (pin "1" (uuid 58ef288d-ddb2-46fb-809a-409079e915ac))
+    (instances
+      (project "DSP PAW add-on board"
+        (path "/c291319b-d76e-4fda-91cc-061acff65f9f/97fc232a-dbc7-49da-a6a0-e33e9aacbabd"
+          (reference "#PWR017") (unit 1)
+        )
+      )
+    )
+  )
+
   (symbol (lib_id "power:+5V") (at 198.12 64.77 0) (unit 1)
     (in_bom yes) (on_board yes) (dnp no) (fields_autoplaced)
     (uuid be093599-523e-4c2e-b272-abe5809dc134)
@@ -1840,6 +1812,31 @@
     )
   )
 
+  (symbol (lib_id "power:+5VD") (at 59.69 71.12 0) (unit 1)
+    (in_bom yes) (on_board yes) (dnp no) (fields_autoplaced)
+    (uuid c90cf993-a6f3-494d-99df-caaec84bfcbd)
+    (property "Reference" "#PWR022" (at 59.69 74.93 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (property "Value" "+5VD" (at 59.69 67.31 0)
+      (effects (font (size 1.27 1.27)))
+    )
+    (property "Footprint" "" (at 59.69 71.12 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (property "Datasheet" "" (at 59.69 71.12 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (pin "1" (uuid 8947a4b8-d37d-432f-a937-9ea0b3fd8784))
+    (instances
+      (project "DSP PAW add-on board"
+        (path "/c291319b-d76e-4fda-91cc-061acff65f9f/97fc232a-dbc7-49da-a6a0-e33e9aacbabd"
+          (reference "#PWR022") (unit 1)
+        )
+      )
+    )
+  )
+
   (symbol (lib_id "power:+5V") (at 204.47 134.62 0) (unit 1)
     (in_bom yes) (on_board yes) (dnp no) (fields_autoplaced)
     (uuid c9bf1559-a362-435c-9b54-e97ab8f624e0)

hardware/user_io.kicad_sch

@@ -6,7 +6,7 @@
 
   (title_block
     (title "User I/O")
-    (date "2023-08-08")
+    (date "2023-08-15")
     (company "bitgloo")
     (comment 1 "Released under the CERN Open Hardware Licence Version 2 - Strongly Reciprocal")
   )