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Add basic Pi Pico project

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This commit is contained in:
Jack O'Sullivan
2024-05-09 20:29:14 +01:00
parent 158f2618b6
commit dc751e449c
9 changed files with 750 additions and 1 deletions
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1
mcu/.envrc Normal file
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use flake ..#mcu --override-input rootdir "file+file://"<(printf %s "$PWD")

1
mcu/.gitignore vendored Normal file
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/build/

19
mcu/CMakeLists.txt Normal file
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cmake_minimum_required(VERSION 3.12)
# Pull in SDK (must be before project)
include(pico_sdk_import.cmake)
project(test_project C CXX ASM)
set(CMAKE_C_STANDARD 11)
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_C_COMPILER_WORKS ON)
set(CMAKE_CXX_COMPILER_WORKS ON)
pico_sdk_init()
add_executable(qclk
main.c
)
pico_enable_stdio_usb(qclk 1)
pico_enable_stdio_uart(qclk 1)
pico_add_extra_outputs(qclk)
target_link_libraries(qclk pico_stdlib)

58
mcu/flake.nix Normal file
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{
inputs = {
flake-parts.url = "github:hercules-ci/flake-parts";
devshell.url = "github:numtide/devshell";
devshell.inputs.nixpkgs.follows = "nixpkgs";
};
outputs = inputs@{ nixpkgs, flake-parts, devshell, ... }:
flake-parts.lib.mkFlake { inherit inputs; } {
imports = [
inputs.flake-parts.flakeModules.easyOverlay
devshell.flakeModule
];
systems = [ "x86_64-linux" ];
perSystem = { inputs', system, pkgs, config, ... }:
let
in
{
_module.args.pkgs = import nixpkgs {
inherit system;
overlays = [
devshell.overlays.default
];
};
overlayAttrs = {
# inherit (config.packages) quicfs;
};
packages = rec {
# quicfs = (rustPkgs.workspace.quicfs { }).bin;
# default = quicfs;
};
devshells.default = {
packagesFrom = [
# (rustPkgs.workspaceShell { })
];
packages = with pkgs; [
gnumake
cmake
# gcc-arm-embedded-13
# coreboot-toolchain.arm
python3
picotool
openocd
];
env = [
{ name = "PICO_SDK_PATH"; value = "${pkgs.pico-sdk}/lib/pico-sdk"; }
# { name = "CC"; value = "${pkgs.coreboot-toolchain.arm}/bin/arm-none-eabi-gcc"; }
# { name = "CXX"; value = "${pkgs.coreboot-toolchain.arm}/bin/arm-none-eabi-g++"; }
{ name = "PICO_TOOLCHAIN_PATH"; value = "/tmp/arm-gnu-toolchain-13.2.Rel1-x86_64-arm-none-eabi"; }
# { name = "CC"; value = "/tmp/arm-gnu-toolchain-13.2.Rel1-x86_64-arm-none-eabi/bin/arm-none-eabi-gcc"; }
# { name = "CXX"; value = "/tmp/arm-gnu-toolchain-13.2.Rel1-x86_64-arm-none-eabi/bin/arm-none-eabi-g++"; }
];
};
};
};
}

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mcu/main.c Normal file
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#include <stdio.h>
#include "pico/stdlib.h"
#include "hardware/gpio.h"
#include "pico/binary_info.h"
const uint LED_PIN = 25;
int main() {
bi_decl(bi_program_description("This is a test binary."));
bi_decl(bi_1pin_with_name(LED_PIN, "On-board LED"));
stdio_init_all();
gpio_init(LED_PIN);
gpio_set_dir(LED_PIN, GPIO_OUT);
while (1) {
gpio_put(LED_PIN, 0);
sleep_ms(250);
gpio_put(LED_PIN, 1);
puts("Hello World\n");
sleep_ms(1000);
}
}

73
mcu/pico_sdk_import.cmake Normal file
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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})