kind of work with zephyr with pca10056 with cmake -DBUILD_ZEPHYR

.west/config

@@ -1,5 +1,5 @@
 [manifest]
-path = lib/zephyr
+path = examples
 file = west.yml
 
 [zephyr]

examples/device/cdc_msc/prj.conf

@@ -0,0 +1,6 @@
+CONFIG_GPIO=y
+CONFIG_FPU=y
+CONFIG_NO_OPTIMIZATIONS=y
+CONFIG_UART_INTERRUPT_DRIVEN=y
+CONFIG_NRFX_POWER=y
+CONFIG_NRFX_UARTE0=y

examples/west.yml

@@ -0,0 +1,12 @@
+manifest:
+  remotes:
+    - name: zephyrproject-rtos
+      url-base: https://github.com/zephyrproject-rtos
+  projects:
+    - name: zephyr
+      remote: zephyrproject-rtos
+      revision: main
+      path: lib/zephyr
+      import: true
+  self:
+    path: .

hw/bsp/nrf/boards/pca10056/board_aliases.cmake

@@ -0,0 +1 @@
+set(pca10056_BOARD_ALIAS nrf52840dk/nrf52840)