fist commit

.gitignore

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+build/*

.vscode/c_cpp_properties.json

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+{
+  "configurations": [
+    {
+      "name": "Pico",
+      "includePath": [
+        "${workspaceFolder}/**",
+        "${env:PICO_SDK_PATH}/**"
+      ],
+      "defines": [],
+      "compilerPath": "${env:PICO_INSTALL_PATH}/gcc-arm-none-eabi/bin/arm-none-eabi-gcc.exe",
+      "cStandard": "c11",
+      "cppStandard": "c++11",
+      "intelliSenseMode": "linux-gcc-arm",
+      "configurationProvider": "ms-vscode.cmake-tools"
+    }
+  ],
+  "version": 4
+}

.vscode/cmake-kits.json

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+[
+  {
+    "name": "Pico ARM GCC",
+    "description": "Pico SDK Toolchain with GCC arm-none-eabi",
+    "toolchainFile": "${env:PICO_SDK_PATH}/cmake/preload/toolchains/pico_arm_gcc.cmake"
+  }
+]

.vscode/extensions.json

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+{
+  "recommendations": [
+    "marus25.cortex-debug",
+    "ms-vscode.cmake-tools",
+    "ms-vscode.cpptools",
+    "ms-vscode.cpptools-extension-pack",
+    "ms-vscode.vscode-serial-monitor"
+  ]
+}

.vscode/launch.json

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+{
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "name": "Pico Debug (Cortex-Debug)",
+      "cwd": "${workspaceFolder}",
+      "executable": "${command:cmake.launchTargetPath}",
+      "request": "launch",
+      "type": "cortex-debug",
+      "servertype": "openocd",
+      "gdbPath": "arm-none-eabi-gdb",
+      "device": "RP2040",
+      "configFiles": [
+        "interface/cmsis-dap.cfg",
+        "target/rp2040.cfg"
+      ],
+      "svdFile": "${env:PICO_SDK_PATH}/src/rp2040/hardware_regs/rp2040.svd",
+      "runToEntryPoint": "main",
+      "openOCDLaunchCommands": [
+        "adapter speed 1000"
+      ]
+    },
+    {
+      "name": "Pico Debug (Cortex-Debug with external OpenOCD)",
+      "cwd": "${workspaceFolder}",
+      "executable": "${command:cmake.launchTargetPath}",
+      "request": "launch",
+      "type": "cortex-debug",
+      "servertype": "external",
+      "gdbTarget": "localhost:3333",
+      "gdbPath": "arm-none-eabi-gdb",
+      "device": "RP2040",
+      "svdFile": "${env:PICO_SDK_PATH}/src/rp2040/hardware_regs/rp2040.svd",
+      "runToEntryPoint": "main"
+    },
+    {
+      "name": "Pico Debug (C++ Debugger)",
+      "type": "cppdbg",
+      "request": "launch",
+      "cwd": "${workspaceFolder}",
+      "program": "${command:cmake.launchTargetPath}",
+      "MIMode": "gdb",
+      "miDebuggerPath": "arm-none-eabi-gdb",
+      "miDebuggerServerAddress": "localhost:3333",
+      "debugServerPath": "openocd",
+      "debugServerArgs": "-f interface/cmsis-dap.cfg -f target/rp2040.cfg -c \"adapter speed 1000\"",
+      "serverStarted": "Listening on port .* for gdb connections",
+      "filterStderr": true,
+      "stopAtEntry": true,
+      "hardwareBreakpoints": {
+        "require": true,
+        "limit": 4
+      },
+      "preLaunchTask": "Flash",
+      "svdPath": "${env:PICO_SDK_PATH}/src/rp2040/hardware_regs/rp2040.svd"
+    }
+  ]
+}

.vscode/settings.json

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+{
+    // These settings tweaks to the cmake plugin will ensure
+    // that you debug using cortex-debug instead of trying to launch
+    // a Pico binary on the host
+    "cmake.statusbar.advanced": {
+        "debug": {
+            "visibility": "hidden"
+        },
+        "launch": {
+            "visibility": "hidden"
+        },
+        "build": {
+            "visibility": "hidden"
+        },
+        "buildTarget": {
+            "visibility": "hidden"
+        }
+    },
+    "cmake.buildBeforeRun": true,
+    "cmake.configureOnOpen": true,
+    "cmake.configureSettings": {
+      "CMAKE_MODULE_PATH": "${env:PICO_INSTALL_PATH}/pico-sdk-tools"
+    },
+    "cmake.generator": "Ninja",
+    "C_Cpp.default.configurationProvider": "ms-vscode.cmake-tools"
+}

.vscode/tasks.json

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+{
+  "version": "2.0.0",
+  "tasks": [
+    {
+      "label": "Flash",
+      "type": "shell",
+      "command": "openocd",
+      "args": [
+        "-f",
+        "interface/cmsis-dap.cfg",
+        "-f",
+        "target/rp2040.cfg",
+        "-c",
+        "adapter speed 1000; program {${command:cmake.launchTargetPath}} verify reset exit"
+      ],
+      "problemMatcher": []
+    },
+    {
+      "label": "Build",
+      "type": "cmake",
+      "command": "build",
+      "problemMatcher": "$gcc",
+      "group": {
+        "kind": "build",
+        "isDefault": true
+      }
+    }
+  ]
+}

CMakeLists.txt

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+cmake_minimum_required(VERSION 3.13)
+
+# initialize the SDK based on PICO_SDK_PATH
+# note: this must happen before project()
+include(pico_sdk_import.cmake)
+
+project(ADRS2040U_i2c)
+
+# initialize the Raspberry Pi Pico SDK
+pico_sdk_init()
+
+add_executable(${PROJECT_NAME}
+	main.cpp
+)
+
+# Add pico_stdlib library which aggregates commonly used features
+target_link_libraries(${PROJECT_NAME}
+	pico_stdlib
+)
+
+# create map/bin/hex/uf2 file in addition to ELF.
+pico_add_extra_outputs(${PROJECT_NAME})

pico_sdk_import.cmake

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+# This is a copy of <PICO_SDK_PATH>/external/pico_sdk_import.cmake
+
+# This can be dropped into an external project to help locate this SDK
+# It should be include()ed prior to project()
+
+if (DEFINED ENV{PICO_SDK_PATH} AND (NOT PICO_SDK_PATH))
+    set(PICO_SDK_PATH $ENV{PICO_SDK_PATH})
+    message("Using PICO_SDK_PATH from environment ('${PICO_SDK_PATH}')")
+endif ()
+
+if (DEFINED ENV{PICO_SDK_FETCH_FROM_GIT} AND (NOT PICO_SDK_FETCH_FROM_GIT))
+    set(PICO_SDK_FETCH_FROM_GIT $ENV{PICO_SDK_FETCH_FROM_GIT})
+    message("Using PICO_SDK_FETCH_FROM_GIT from environment ('${PICO_SDK_FETCH_FROM_GIT}')")
+endif ()
+
+if (DEFINED ENV{PICO_SDK_FETCH_FROM_GIT_PATH} AND (NOT PICO_SDK_FETCH_FROM_GIT_PATH))
+    set(PICO_SDK_FETCH_FROM_GIT_PATH $ENV{PICO_SDK_FETCH_FROM_GIT_PATH})
+    message("Using PICO_SDK_FETCH_FROM_GIT_PATH from environment ('${PICO_SDK_FETCH_FROM_GIT_PATH}')")
+endif ()
+
+set(PICO_SDK_PATH "${PICO_SDK_PATH}" CACHE PATH "Path to the Raspberry Pi Pico SDK")
+set(PICO_SDK_FETCH_FROM_GIT "${PICO_SDK_FETCH_FROM_GIT}" CACHE BOOL "Set to ON to fetch copy of SDK from git if not otherwise locatable")
+set(PICO_SDK_FETCH_FROM_GIT_PATH "${PICO_SDK_FETCH_FROM_GIT_PATH}" CACHE FILEPATH "location to download SDK")
+
+if (NOT PICO_SDK_PATH)
+    if (PICO_SDK_FETCH_FROM_GIT)
+        include(FetchContent)
+        set(FETCHCONTENT_BASE_DIR_SAVE ${FETCHCONTENT_BASE_DIR})
+        if (PICO_SDK_FETCH_FROM_GIT_PATH)
+            get_filename_component(FETCHCONTENT_BASE_DIR "${PICO_SDK_FETCH_FROM_GIT_PATH}" REALPATH BASE_DIR "${CMAKE_SOURCE_DIR}")
+        endif ()
+        # GIT_SUBMODULES_RECURSE was added in 3.17
+        if (${CMAKE_VERSION} VERSION_GREATER_EQUAL "3.17.0")
+            FetchContent_Declare(
+                    pico_sdk
+                    GIT_REPOSITORY https://github.com/raspberrypi/pico-sdk
+                    GIT_TAG master
+                    GIT_SUBMODULES_RECURSE FALSE
+            )
+        else ()
+            FetchContent_Declare(
+                    pico_sdk
+                    GIT_REPOSITORY https://github.com/raspberrypi/pico-sdk
+                    GIT_TAG master
+            )
+        endif ()
+
+        if (NOT pico_sdk)
+            message("Downloading Raspberry Pi Pico SDK")
+            FetchContent_Populate(pico_sdk)
+            set(PICO_SDK_PATH ${pico_sdk_SOURCE_DIR})
+        endif ()
+        set(FETCHCONTENT_BASE_DIR ${FETCHCONTENT_BASE_DIR_SAVE})
+    else ()
+        message(FATAL_ERROR
+                "SDK location was not specified. Please set PICO_SDK_PATH or set PICO_SDK_FETCH_FROM_GIT to on to fetch from git."
+                )
+    endif ()
+endif ()
+
+get_filename_component(PICO_SDK_PATH "${PICO_SDK_PATH}" REALPATH BASE_DIR "${CMAKE_BINARY_DIR}")
+if (NOT EXISTS ${PICO_SDK_PATH})
+    message(FATAL_ERROR "Directory '${PICO_SDK_PATH}' not found")
+endif ()
+
+set(PICO_SDK_INIT_CMAKE_FILE ${PICO_SDK_PATH}/pico_sdk_init.cmake)
+if (NOT EXISTS ${PICO_SDK_INIT_CMAKE_FILE})
+    message(FATAL_ERROR "Directory '${PICO_SDK_PATH}' does not appear to contain the Raspberry Pi Pico SDK")
+endif ()
+
+set(PICO_SDK_PATH ${PICO_SDK_PATH} CACHE PATH "Path to the Raspberry Pi Pico SDK" FORCE)
+
+include(${PICO_SDK_INIT_CMAKE_FILE})