Add Zephyr build for the Feather nrf52840 Sense

tannewt · tannewt · commit d28f54587c4d · 2026-04-06T11:05:27.000-07:00
diff --git a/ports/zephyr-cp/boards/adafruit/feather_nrf52840_sense_zephyr/autogen_board_info.toml b/ports/zephyr-cp/boards/adafruit/feather_nrf52840_sense_zephyr/autogen_board_info.toml
@@ -0,0 +1,120 @@
+# This file is autogenerated when a board is built. Do not edit. Do commit it to git. Other scripts use its info.
+name = "Adafruit Industries LLC Feather Bluefruit Sense"
+
+[modules]
+__future__ = true
+_bleio = false
+_eve = false
+_pew = false
+_pixelmap = false
+_stage = false
+adafruit_bus_device = false
+adafruit_pixelbuf = false
+aesio = false
+alarm = false
+analogbufio = false
+analogio = false
+atexit = false
+audiobusio = false
+audiocore = false
+audiodelays = false
+audiofilters = false
+audiofreeverb = false
+audioio = false
+audiomixer = false
+audiomp3 = false
+audiopwmio = false
+audiospeed = false
+aurora_epaper = false
+bitbangio = false
+bitmapfilter = true # Zephyr board has busio
+bitmaptools = true # Zephyr board has busio
+bitops = false
+board = false
+busdisplay = true # Zephyr board has busio
+busio = true # Zephyr board has busio
+camera = false
+canio = false
+codeop = false
+countio = false
+digitalio = true
+displayio = true # Zephyr board has busio
+dotclockframebuffer = false
+dualbank = false
+epaperdisplay = true # Zephyr board has busio
+floppyio = false
+fontio = true # Zephyr board has busio
+fourwire = true # Zephyr board has busio
+framebufferio = true # Zephyr board has busio
+frequencyio = false
+getpass = false
+gifio = false
+gnss = false
+hashlib = false
+hostnetwork = false
+i2cdisplaybus = true # Zephyr board has busio
+i2cioexpander = false
+i2ctarget = false
+imagecapture = false
+ipaddress = false
+is31fl3741 = false
+jpegio = false
+keypad = false
+keypad_demux = false
+locale = false
+lvfontio = true # Zephyr board has busio
+math = false
+max3421e = false
+mcp4822 = false
+mdns = false
+memorymap = false
+memorymonitor = false
+microcontroller = true
+mipidsi = false
+msgpack = false
+neopixel_write = false
+nvm = true # Zephyr board has nvm
+onewireio = false
+os = true
+paralleldisplaybus = false
+ps2io = false
+pulseio = false
+pwmio = false
+qrio = false
+qspibus = false
+rainbowio = true
+random = true
+rclcpy = false
+rgbmatrix = false
+rotaryio = true # Zephyr board has rotaryio
+rtc = false
+sdcardio = true # Zephyr board has busio
+sdioio = false
+sharpdisplay = true # Zephyr board has busio
+socketpool = false
+spitarget = false
+ssl = false
+storage = true # Zephyr board has flash
+struct = true
+supervisor = true
+synthio = false
+terminalio = true # Zephyr board has busio
+tilepalettemapper = true # Zephyr board has busio
+time = true
+touchio = false
+traceback = true
+uheap = false
+usb = false
+usb_cdc = true
+usb_hid = false
+usb_host = false
+usb_midi = false
+usb_video = false
+ustack = false
+vectorio = true # Zephyr board has busio
+warnings = true
+watchdog = false
+wifi = false
+zephyr_display = false
+zephyr_kernel = false
+zlib = false
diff --git a/ports/zephyr-cp/boards/adafruit/feather_nrf52840_sense_zephyr/circuitpython.toml b/ports/zephyr-cp/boards/adafruit/feather_nrf52840_sense_zephyr/circuitpython.toml
@@ -0,0 +1,4 @@
+CIRCUITPY_BUILD_EXTENSIONS = ["elf", "uf2"]
+USB_VID=0x239A
+USB_PID=0x8088
+NAME="Feather Bluefruit Sense"
diff --git a/ports/zephyr-cp/boards/adafruit/feather_nrf52840_zephyr/autogen_board_info.toml b/ports/zephyr-cp/boards/adafruit/feather_nrf52840_zephyr/autogen_board_info.toml
@@ -1,5 +1,5 @@
 # This file is autogenerated when a board is built. Do not edit. Do commit it to git. Other scripts use its info.
-name = "Adafruit Industries LLC Feather nRF52840 (Express, Sense)"
+name = "Adafruit Industries LLC Feather nRF52840 Express"
 
 [modules]
 __future__ = true
diff --git a/ports/zephyr-cp/boards/adafruit/feather_nrf52840_zephyr/circuitpython.toml b/ports/zephyr-cp/boards/adafruit/feather_nrf52840_zephyr/circuitpython.toml
@@ -1,3 +1,4 @@
 CIRCUITPY_BUILD_EXTENSIONS = ["elf", "uf2"]
 USB_VID=0x239A
 USB_PID=0x802A
+NAME="Feather nRF52840 Express"
diff --git a/ports/zephyr-cp/boards/adafruit_feather_nrf52840_nrf52840_sense_uf2.conf b/ports/zephyr-cp/boards/adafruit_feather_nrf52840_nrf52840_sense_uf2.conf
@@ -0,0 +1,10 @@
+CONFIG_BT=y
+CONFIG_BT_PERIPHERAL=y
+CONFIG_BT_CENTRAL=y
+CONFIG_BT_BROADCASTER=y
+CONFIG_BT_OBSERVER=y
+CONFIG_BT_EXT_ADV=y
+
+CONFIG_USE_DT_CODE_PARTITION=y
+
+CONFIG_BOARD_SERIAL_BACKEND_CDC_ACM=n
diff --git a/ports/zephyr-cp/boards/adafruit_feather_nrf52840_nrf52840_sense_uf2.overlay b/ports/zephyr-cp/boards/adafruit_feather_nrf52840_nrf52840_sense_uf2.overlay
@@ -0,0 +1,46 @@
+/ {
+	chosen {
+		zephyr,console = &uart0;
+		zephyr,shell-uart = &uart0;
+		zephyr,uart-mcumgr = &uart0;
+		zephyr,bt-mon-uart = &uart0;
+		zephyr,bt-c2h-uart = &uart0;
+	};
+};
+
+&zephyr_udc0 {
+	/delete-node/ board_cdc_acm_uart;
+};
+
+
+&gd25q16 {
+	/delete-node/ partitions;
+};
+
+/delete-node/ &storage_partition;
+/delete-node/ &code_partition;
+
+&flash0 {
+	partitions {
+		code_partition: partition@26000 {
+			label = "Application";
+			reg = <0x00026000 0x000c4000>;
+		};
+
+		storage_partition: partition@ea000 {
+			label = "storage";
+			reg = <0x000ea000 0x00008000>;
+		};
+
+		nvm_partition: partition@f2000 {
+			label = "nvm";
+			reg = <0x000f2000 0x00002000>;
+		};
+	};
+};
+
+&uart0 {
+    status = "okay";
+};
+
+#include "../app.overlay"
diff --git a/ports/zephyr-cp/boards/board_aliases.cmake b/ports/zephyr-cp/boards/board_aliases.cmake
@@ -28,6 +28,7 @@ endmacro()
 
 cp_board_alias(pca10056 nrf52840dk/nrf52840)
 cp_board_alias(adafruit_feather_nrf52840_zephyr adafruit_feather_nrf52840/nrf52840/uf2)
+cp_board_alias(adafruit_feather_nrf52840_sense_zephyr adafruit_feather_nrf52840/nrf52840/sense/uf2)
 cp_board_alias(renesas_ek_ra6m5 ek_ra6m5)
 cp_board_alias(renesas_ek_ra8d1 ek_ra8d1)
 cp_board_alias(renesas_da14695_dk_usb da14695_dk_usb)
diff --git a/ports/zephyr-cp/cptools/build_circuitpython.py b/ports/zephyr-cp/cptools/build_circuitpython.py
@@ -362,6 +362,11 @@ async def build_circuitpython():
     genhdr = builddir / "genhdr"
     genhdr.mkdir(exist_ok=True, parents=True)
     version_header = genhdr / "mpversion.h"
+    mpconfigboard_fn = board_tools.find_mpconfigboard(portdir, board)
+    mpconfigboard = {"USB_VID": 0x1209, "USB_PID": 0x000C, "USB_INTERFACE_NAME": "CircuitPython"}
+    if mpconfigboard_fn is not None and mpconfigboard_fn.exists():
+        with mpconfigboard_fn.open("rb") as f:
+            mpconfigboard.update(tomllib.load(f))
     async with asyncio.TaskGroup() as tg:
         tg.create_task(
             cpbuild.run_command(
@@ -379,21 +384,16 @@ async def build_circuitpython():
         )
 
         board_autogen_task = tg.create_task(
-            zephyr_dts_to_cp_board(zephyr_board, portdir, builddir, zephyrbuilddir)
+            zephyr_dts_to_cp_board(zephyr_board, portdir, builddir, zephyrbuilddir, mpconfigboard)
         )
     board_info = board_autogen_task.result()
-    mpconfigboard_fn = board_tools.find_mpconfigboard(portdir, board)
-    mpconfigboard = {"USB_VID": 0x1209, "USB_PID": 0x000C, "USB_INTERFACE_NAME": "CircuitPython"}
     if mpconfigboard_fn is None:
         mpconfigboard_fn = (
             portdir / "boards" / board_info["vendor_id"] / board / "circuitpython.toml"
         )
         logging.warning(
             f"Could not find board config at: boards/{board_info['vendor_id']}/{board}"
         )
-    elif mpconfigboard_fn.exists():
-        with mpconfigboard_fn.open("rb") as f:
-            mpconfigboard.update(tomllib.load(f))
 
     autogen_board_info_fn = mpconfigboard_fn.parent / "autogen_board_info.toml"
 
@@ -402,6 +402,9 @@ async def build_circuitpython():
     circuitpython_flags.append(f"-DCIRCUITPY_CREATOR_ID=0x{creator_id:08x}")
     circuitpython_flags.append(f"-DCIRCUITPY_CREATION_ID=0x{creation_id:08x}")
 
+    vendor = mpconfigboard.get("VENDOR", board_info["vendor"])
+    name = mpconfigboard.get("NAME", board_info["name"])
+
     enabled_modules, module_reasons = determine_enabled_modules(board_info, portdir, srcdir)
 
     web_workflow_enabled = board_info.get("wifi", False) or board_info.get("hostnetwork", False)
@@ -459,8 +462,8 @@ async def build_circuitpython():
             f"-DUSB_INTERFACE_NAME='\"{mpconfigboard['USB_INTERFACE_NAME']}\"'"
         )
         for macro, limit, value in (
-            ("USB_PRODUCT", 16, board_info["name"]),
-            ("USB_MANUFACTURER", 8, board_info["vendor"]),
+            ("USB_PRODUCT", 16, name),
+            ("USB_MANUFACTURER", 8, vendor),
         ):
             circuitpython_flags.append(f"-D{macro}='\"{value}\"'")
             circuitpython_flags.append(f"-D{macro}_{limit}='\"{value[:limit]}\"'")
@@ -512,7 +515,7 @@ async def build_circuitpython():
             "This file is autogenerated when a board is built. Do not edit. Do commit it to git. Other scripts use its info."
         )
     )
-    autogen_board_info.add("name", board_info["vendor"] + " " + board_info["name"])
+    autogen_board_info.add("name", vendor + " " + name)
     autogen_modules = tomlkit.table()
     autogen_board_info.add("modules", autogen_modules)
     for module in sorted(
diff --git a/ports/zephyr-cp/cptools/zephyr2cp.py b/ports/zephyr-cp/cptools/zephyr2cp.py
@@ -433,7 +433,7 @@ def find_ram_regions(device_tree):
 
 
 @cpbuild.run_in_thread
-def zephyr_dts_to_cp_board(board_id, portdir, builddir, zephyrbuilddir):  # noqa: C901
+def zephyr_dts_to_cp_board(board_id, portdir, builddir, zephyrbuilddir, mpconfigboard=None):  # noqa: C901
     board_dir = builddir / "board"
     # Auto generate board files from device tree.
 
@@ -486,6 +486,8 @@ def zephyr_dts_to_cp_board(board_id, portdir, builddir, zephyrbuilddir):  # noqa
     soc_name = board_yaml["socs"][0]["name"]
     board_info["soc"] = soc_name
     board_name = board_yaml["full_name"]
+    if mpconfigboard and "NAME" in mpconfigboard:
+        board_name = mpconfigboard["NAME"]
     board_info["name"] = board_name
     # board_id_yaml = zephyr_board_dir / (zephyr_board_dir.name + ".yaml")
     # board_id_yaml = yaml.safe_load(board_id_yaml.read_text())
