project init

CMakeLists.txt

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+# Generated Cmake Pico project file
+
+cmake_minimum_required(VERSION 3.13)
+
+set(CMAKE_C_STANDARD 11)
+set(CMAKE_CXX_STANDARD 17)
+
+# Enforce board type
+set(PICO_BOARD "ADAFRUIT_FEATHER_RP2040")
+
+# Initialise pico_sdk from installed location
+# (note this can come from environment, CMake cache etc)
+set(PICO_SDK_PATH "/Users/mchapman/source/pico/pico-sdk")
+
+# Pull in Raspberry Pi Pico SDK (must be before project)
+include(pico_sdk_import.cmake)
+
+project(traegerController C CXX ASM)
+
+# Initialise the Raspberry Pi Pico SDK
+pico_sdk_init()
+
+# Add executable. Default name is the project name, version 0.1
+
+add_executable(traegerController traegerController.cpp )
+
+pico_set_program_name(traegerController "traegerController")
+pico_set_program_version(traegerController "0.1")
+
+pico_enable_stdio_uart(traegerController 0)
+pico_enable_stdio_usb(traegerController 1)
+
+# Add the standard library to the build
+target_link_libraries(traegerController pico_stdlib)
+
+# Add any user requested libraries
+target_link_libraries(traegerController
+        hardware_spi
+        hardware_i2c
+        hardware_timer
+        )
+
+pico_add_extra_outputs(traegerController)
+

build/elf2uf2/src/ELF2UF2Build-stamp/ELF2UF2Build-source_dirinfo.txt

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+# This is a generated file and its contents are an internal implementation detail.
+# The download step will be re-executed if anything in this file changes.
+# No other meaning or use of this file is supported.
+
+method=source_dir
+command=
+source_dir=/Users/mchapman/source/pico/pico-sdk/tools/elf2uf2
+work_dir=
+

build/elf2uf2/tmp/ELF2UF2Build-cfgcmd.txt

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+cmd='/opt/homebrew/Cellar/cmake/3.23.2/bin/cmake;-GUnix Makefiles;<SOURCE_DIR><SOURCE_SUBDIR>'

build/elf2uf2/tmp/ELF2UF2Build-mkdirs.cmake

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+# Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+# file Copyright.txt or https://cmake.org/licensing for details.
+
+cmake_minimum_required(VERSION 3.5)
+
+file(MAKE_DIRECTORY
+  "/Users/mchapman/source/pico/pico-sdk/tools/elf2uf2"
+  "/Users/mchapman/source/traegerController/build/elf2uf2"
+  "/Users/mchapman/source/traegerController/build/elf2uf2"
+  "/Users/mchapman/source/traegerController/build/elf2uf2/tmp"
+  "/Users/mchapman/source/traegerController/build/elf2uf2/src/ELF2UF2Build-stamp"
+  "/Users/mchapman/source/traegerController/build/elf2uf2/src"
+  "/Users/mchapman/source/traegerController/build/elf2uf2/src/ELF2UF2Build-stamp"
+)
+
+set(configSubDirs )
+foreach(subDir IN LISTS configSubDirs)
+    file(MAKE_DIRECTORY "/Users/mchapman/source/traegerController/build/elf2uf2/src/ELF2UF2Build-stamp/${subDir}")
+endforeach()

build/generated/pico_base/pico/config_autogen.h

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+// AUTOGENERATED FROM PICO_CONFIG_HEADER_FILES and then PICO_<PLATFORM>_CONFIG_HEADER_FILES
+// DO NOT EDIT!
+
+
+// based on PICO_CONFIG_HEADER_FILES:
+
+#include "/Users/mchapman/source/pico/pico-sdk/src/boards/include/boards/ADAFRUIT_FEATHER_RP2040.h"
+
+// based on PICO_RP2040_CONFIG_HEADER_FILES:
+
+#include "/Users/mchapman/source/pico/pico-sdk/src/rp2_common/cmsis/include/cmsis/rename_exceptions.h"

build/generated/pico_base/pico/version.h

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+/*
+ * Copyright (c) 2020 Raspberry Pi (Trading) Ltd.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+// ---------------------------------------
+// THIS FILE IS AUTOGENERATED; DO NOT EDIT
+// ---------------------------------------
+
+#ifndef _PICO_VERSION_H
+#define _PICO_VERSION_H
+
+#define PICO_SDK_VERSION_MAJOR    1
+#define PICO_SDK_VERSION_MINOR    3
+#define PICO_SDK_VERSION_REVISION 1
+#define PICO_SDK_VERSION_STRING   "1.3.1"
+
+#endif

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})

traegerController.cpp

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+#include <stdio.h>
+#include "pico/stdlib.h"
+#include "hardware/spi.h"
+#include "hardware/i2c.h"
+#include "hardware/timer.h"
+
+// SPI Defines
+// We are going to use SPI 0, and allocate it to the following GPIO pins
+// Pins can be changed, see the GPIO function select table in the datasheet for information on GPIO assignments
+#define SPI_PORT spi0
+#define PIN_MISO 16
+#define PIN_CS   17
+#define PIN_SCK  18
+#define PIN_MOSI 19
+
+// I2C defines
+// This example will use I2C0 on GPIO8 (SDA) and GPIO9 (SCL) running at 400KHz.
+// Pins can be changed, see the GPIO function select table in the datasheet for information on GPIO assignments
+#define I2C_PORT i2c0
+#define I2C_SDA 8
+#define I2C_SCL 9
+
+int64_t alarm_callback(alarm_id_t id, void *user_data) {
+    // Put your timeout handler code in here
+    return 0;
+}
+
+
+
+int main()
+{
+    stdio_init_all();
+
+    // SPI initialisation. This example will use SPI at 1MHz.
+    spi_init(SPI_PORT, 1000*1000);
+    gpio_set_function(PIN_MISO, GPIO_FUNC_SPI);
+    gpio_set_function(PIN_CS,   GPIO_FUNC_SIO);
+    gpio_set_function(PIN_SCK,  GPIO_FUNC_SPI);
+    gpio_set_function(PIN_MOSI, GPIO_FUNC_SPI);
+    
+    // Chip select is active-low, so we'll initialise it to a driven-high state
+    gpio_set_dir(PIN_CS, GPIO_OUT);
+    gpio_put(PIN_CS, 1);
+    
+
+    // I2C Initialisation. Using it at 400Khz.
+    i2c_init(I2C_PORT, 400*1000);
+    
+    gpio_set_function(I2C_SDA, GPIO_FUNC_I2C);
+    gpio_set_function(I2C_SCL, GPIO_FUNC_I2C);
+    gpio_pull_up(I2C_SDA);
+    gpio_pull_up(I2C_SCL);
+
+    // Timer example code - This example fires off the callback after 2000ms
+    add_alarm_in_ms(2000, alarm_callback, NULL, false);
+
+    puts("Hello, world!");
+
+    return 0;
+}