Initial commit
This commit is contained in:
commit
ec1a638e20
26
c-with-rust/CMakeLists.txt
Normal file
26
c-with-rust/CMakeLists.txt
Normal file
@ -0,0 +1,26 @@
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cmake_minimum_required(VERSION 3.12)
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# Pull in SDK (must be before project)
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include(pico_sdk_import.cmake)
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project(pico_examples C CXX ASM)
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set(CMAKE_C_STANDARD 17)
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set(CMAKE_CXX_STANDARD 17)
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# Initialize the SDK
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pico_sdk_init()
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add_executable(
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blink
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blink.c
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)
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# pull in common dependencies
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target_link_libraries(
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blink
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pico_stdlib
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/tmp/cargo-target/thumbv6m-none-eabi/release/librblink.a
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)
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# create map/bin/hex file etc.
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pico_add_extra_outputs(blink)
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61
c-with-rust/blink.c
Normal file
61
c-with-rust/blink.c
Normal file
@ -0,0 +1,61 @@
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/**
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* Copyright (c) 2020 Raspberry Pi (Trading) Ltd.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include "pico/stdlib.h"
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// https://rust-lang.github.io/unsafe-code-guidelines/layout/scalars.html
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// bool is compatible
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#define i8 int8_t
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#define i16 int16_t
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#define i32 int32_t
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#define u8 uint8_t
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#define u16 uint16_t
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#define u32 uint32_t
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#define i64 int64_t
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#define u64 uint64_t
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#define isize intptr_t
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#define usize uintptr_t
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// used from rust
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const uint LED_PIN = PICO_DEFAULT_LED_PIN;
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uint led_pin() {
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return PICO_DEFAULT_LED_PIN;
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}
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// without this: undefined reference to `gpio_set_dir'
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void c_gpio_set_dir(uint gpio, bool out) {
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return gpio_set_dir(gpio, out);
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}
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// without this: undefined reference to `gpio_put'
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void c_gpio_put(uint gpio, bool value) {
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return gpio_put(gpio, value);
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}
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// defined in rust
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u32 add_half(u32 num);
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int rs_main();
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int c_main() {
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gpio_init(LED_PIN);
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gpio_set_dir(LED_PIN, GPIO_OUT);
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int sleep = 250;
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while (true) {
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gpio_put(LED_PIN, 1);
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sleep_ms(sleep);
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gpio_put(LED_PIN, 0);
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sleep_ms(sleep);
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sleep = add_half(sleep);
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}
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}
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// rename to main() to enable this one
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int main_disabled() {
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return rs_main();
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//return c_main();
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}
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21
c-with-rust/build.sh
Executable file
21
c-with-rust/build.sh
Executable file
@ -0,0 +1,21 @@
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#!/bin/bash
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set -euxo pipefail
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# run: rustup target add thumbv6m-none-eabi
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SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
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cd "$SCRIPT_DIR"/rblink
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CARGO_TARGET_DIR=/tmp/cargo-target cargo build --release --target thumbv6m-none-eabi
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mkdir -p /tmp/8
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cd /tmp/8
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cmake "$SCRIPT_DIR"
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make
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picotool info
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picotool load blink.uf2
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picotool reboot
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62
c-with-rust/pico_sdk_import.cmake
Normal file
62
c-with-rust/pico_sdk_import.cmake
Normal file
@ -0,0 +1,62 @@
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# This is a copy of <PICO_SDK_PATH>/external/pico_sdk_import.cmake
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# This can be dropped into an external project to help locate this SDK
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# It should be include()ed prior to project()
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if (DEFINED ENV{PICO_SDK_PATH} AND (NOT PICO_SDK_PATH))
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set(PICO_SDK_PATH $ENV{PICO_SDK_PATH})
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message("Using PICO_SDK_PATH from environment ('${PICO_SDK_PATH}')")
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endif ()
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if (DEFINED ENV{PICO_SDK_FETCH_FROM_GIT} AND (NOT PICO_SDK_FETCH_FROM_GIT))
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set(PICO_SDK_FETCH_FROM_GIT $ENV{PICO_SDK_FETCH_FROM_GIT})
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message("Using PICO_SDK_FETCH_FROM_GIT from environment ('${PICO_SDK_FETCH_FROM_GIT}')")
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endif ()
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if (DEFINED ENV{PICO_SDK_FETCH_FROM_GIT_PATH} AND (NOT PICO_SDK_FETCH_FROM_GIT_PATH))
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set(PICO_SDK_FETCH_FROM_GIT_PATH $ENV{PICO_SDK_FETCH_FROM_GIT_PATH})
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message("Using PICO_SDK_FETCH_FROM_GIT_PATH from environment ('${PICO_SDK_FETCH_FROM_GIT_PATH}')")
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endif ()
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set(PICO_SDK_PATH "${PICO_SDK_PATH}" CACHE PATH "Path to the Raspberry Pi Pico SDK")
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set(PICO_SDK_FETCH_FROM_GIT "${PICO_SDK_FETCH_FROM_GIT}" CACHE BOOL "Set to ON to fetch copy of SDK from git if not otherwise locatable")
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set(PICO_SDK_FETCH_FROM_GIT_PATH "${PICO_SDK_FETCH_FROM_GIT_PATH}" CACHE FILEPATH "location to download SDK")
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if (NOT PICO_SDK_PATH)
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if (PICO_SDK_FETCH_FROM_GIT)
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include(FetchContent)
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set(FETCHCONTENT_BASE_DIR_SAVE ${FETCHCONTENT_BASE_DIR})
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if (PICO_SDK_FETCH_FROM_GIT_PATH)
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get_filename_component(FETCHCONTENT_BASE_DIR "${PICO_SDK_FETCH_FROM_GIT_PATH}" REALPATH BASE_DIR "${CMAKE_SOURCE_DIR}")
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endif ()
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FetchContent_Declare(
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pico_sdk
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GIT_REPOSITORY https://github.com/raspberrypi/pico-sdk
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GIT_TAG master
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)
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if (NOT pico_sdk)
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message("Downloading Raspberry Pi Pico SDK")
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FetchContent_Populate(pico_sdk)
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set(PICO_SDK_PATH ${pico_sdk_SOURCE_DIR})
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endif ()
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set(FETCHCONTENT_BASE_DIR ${FETCHCONTENT_BASE_DIR_SAVE})
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else ()
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message(FATAL_ERROR
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"SDK location was not specified. Please set PICO_SDK_PATH or set PICO_SDK_FETCH_FROM_GIT to on to fetch from git."
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)
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endif ()
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endif ()
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get_filename_component(PICO_SDK_PATH "${PICO_SDK_PATH}" REALPATH BASE_DIR "${CMAKE_BINARY_DIR}")
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if (NOT EXISTS ${PICO_SDK_PATH})
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message(FATAL_ERROR "Directory '${PICO_SDK_PATH}' not found")
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endif ()
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set(PICO_SDK_INIT_CMAKE_FILE ${PICO_SDK_PATH}/pico_sdk_init.cmake)
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if (NOT EXISTS ${PICO_SDK_INIT_CMAKE_FILE})
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message(FATAL_ERROR "Directory '${PICO_SDK_PATH}' does not appear to contain the Raspberry Pi Pico SDK")
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endif ()
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set(PICO_SDK_PATH ${PICO_SDK_PATH} CACHE PATH "Path to the Raspberry Pi Pico SDK" FORCE)
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include(${PICO_SDK_INIT_CMAKE_FILE})
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7
c-with-rust/rblink/Cargo.lock
generated
Normal file
7
c-with-rust/rblink/Cargo.lock
generated
Normal file
@ -0,0 +1,7 @@
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# This file is automatically @generated by Cargo.
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# It is not intended for manual editing.
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version = 3
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[[package]]
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name = "rblink"
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version = "0.1.0"
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10
c-with-rust/rblink/Cargo.toml
Normal file
10
c-with-rust/rblink/Cargo.toml
Normal file
@ -0,0 +1,10 @@
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[package]
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name = "rblink"
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version = "0.1.0"
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edition = "2021"
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[lib]
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name = "rblink"
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crate-type = ["staticlib"]
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[dependencies]
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73
c-with-rust/rblink/src/lib.rs
Normal file
73
c-with-rust/rblink/src/lib.rs
Normal file
@ -0,0 +1,73 @@
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#![no_std]
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// https://doc.rust-lang.org/core/ffi/index.html
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use core::ffi::{c_int, c_uint, c_void};
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#[panic_handler]
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fn oh_no(_panic_info: &core::panic::PanicInfo) -> ! {
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loop {}
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}
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mod c {
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use core::ffi::{c_int, c_uint, c_void};
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extern "C" {
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pub(super) static LED_PIN: c_uint;
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// https://www.raspberrypi.com/documentation/pico-sdk/high_level.html
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pub(super) fn gpio_init(gpio: c_uint) -> c_void;
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pub(super) fn c_gpio_set_dir(gpio: c_uint, on_off: bool) -> c_void;
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pub(super) fn c_gpio_put(gpio: c_uint, on_off: bool) -> c_void;
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pub(super) fn sleep_us(us: u64) -> c_void;
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pub(super) fn sleep_ms(ms: u32) -> c_void;
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}
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}
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static LED_PIN: &c_uint = unsafe { &c::LED_PIN };
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fn gpio_init(gpio: c_uint) {
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unsafe { c::gpio_init(gpio) };
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}
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fn gpio_set_dir(gpio: c_uint, on_off: bool) {
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unsafe { c::c_gpio_set_dir(gpio, on_off) };
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}
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fn gpio_put(gpio: c_uint, on_off: bool) {
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unsafe { c::c_gpio_put(gpio, on_off) };
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}
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fn sleep_us(us: u64) {
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unsafe { c::sleep_us(us) };
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}
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fn sleep_ms(ms: u32) {
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unsafe { c::sleep_ms(ms) };
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}
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// this is now the entry point
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#[no_mangle]
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pub extern "C" fn main() -> c_int {
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rs_main()
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}
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#[no_mangle]
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pub extern "C" fn rs_main() -> c_int {
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let led_pin = *LED_PIN;
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gpio_init(led_pin);
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gpio_set_dir(led_pin, true);
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||||
let mut sleep = 250;
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loop {
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gpio_put(led_pin, true);
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sleep_ms(sleep);
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gpio_put(led_pin, false);
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||||
sleep_ms(sleep);
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sleep = add_half(sleep);
|
||||
}
|
||||
}
|
||||
|
||||
#[no_mangle]
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||||
pub extern "C" fn add_half(num: u32) -> u32 {
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let mut half = num / 2;
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||||
if half == 0 {
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half = 1;
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||||
}
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num.wrapping_add(half)
|
||||
}
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||||
25
c/CMakeLists.txt
Normal file
25
c/CMakeLists.txt
Normal file
@ -0,0 +1,25 @@
|
||||
cmake_minimum_required(VERSION 3.12)
|
||||
|
||||
# Pull in SDK (must be before project)
|
||||
include(pico_sdk_import.cmake)
|
||||
|
||||
project(pico_examples C CXX ASM)
|
||||
set(CMAKE_C_STANDARD 11)
|
||||
set(CMAKE_CXX_STANDARD 17)
|
||||
|
||||
# Initialize the SDK
|
||||
pico_sdk_init()
|
||||
|
||||
add_executable(
|
||||
blink
|
||||
blink.c
|
||||
)
|
||||
|
||||
# pull in common dependencies
|
||||
target_link_libraries(
|
||||
blink
|
||||
pico_stdlib
|
||||
)
|
||||
|
||||
# create map/bin/hex file etc.
|
||||
pico_add_extra_outputs(blink)
|
||||
19
c/blink.c
Normal file
19
c/blink.c
Normal file
@ -0,0 +1,19 @@
|
||||
/**
|
||||
* Copyright (c) 2020 Raspberry Pi (Trading) Ltd.
|
||||
*
|
||||
* SPDX-License-Identifier: BSD-3-Clause
|
||||
*/
|
||||
|
||||
#include "pico/stdlib.h"
|
||||
|
||||
int main() {
|
||||
const uint LED_PIN = PICO_DEFAULT_LED_PIN;
|
||||
gpio_init(LED_PIN);
|
||||
gpio_set_dir(LED_PIN, GPIO_OUT);
|
||||
while (true) {
|
||||
gpio_put(LED_PIN, 1);
|
||||
sleep_ms(250);
|
||||
gpio_put(LED_PIN, 0);
|
||||
sleep_ms(250);
|
||||
}
|
||||
}
|
||||
16
c/build.sh
Executable file
16
c/build.sh
Executable file
@ -0,0 +1,16 @@
|
||||
#!/bin/bash
|
||||
set -euxo pipefail
|
||||
|
||||
SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
|
||||
|
||||
mkdir -p /tmp/8
|
||||
cd /tmp/8
|
||||
|
||||
cmake "$SCRIPT_DIR"
|
||||
|
||||
make
|
||||
|
||||
picotool info
|
||||
picotool load blink.uf2
|
||||
picotool reboot
|
||||
|
||||
62
c/pico_sdk_import.cmake
Normal file
62
c/pico_sdk_import.cmake
Normal file
@ -0,0 +1,62 @@
|
||||
# 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 ()
|
||||
FetchContent_Declare(
|
||||
pico_sdk
|
||||
GIT_REPOSITORY https://github.com/raspberrypi/pico-sdk
|
||||
GIT_TAG master
|
||||
)
|
||||
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})
|
||||
11
readme.txt
Normal file
11
readme.txt
Normal file
@ -0,0 +1,11 @@
|
||||
examples of blinking projects on rpi pico
|
||||
|
||||
one with C only
|
||||
|
||||
one with C using a static rust lib
|
||||
|
||||
one with rust using a static C lib
|
||||
|
||||
run ./build.sh in each of the directories to flash and run them to your rpi pico
|
||||
|
||||
If you have suggestions for better ways let me know
|
||||
29
rust-with-c/.cargo/config.toml
Normal file
29
rust-with-c/.cargo/config.toml
Normal file
@ -0,0 +1,29 @@
|
||||
[target.'cfg(all(target_arch = "arm", target_os = "none"))']
|
||||
# Choose a default "cargo run" tool (see README for more info)
|
||||
# - `probe-rs` provides flashing and defmt via a hardware debugger, and stack unwind on panic
|
||||
# - elf2uf2-rs loads firmware over USB when the rp2040 is in boot mode
|
||||
#runner = "probe-rs run --chip RP2040 --protocol swd"
|
||||
#runner = "elf2uf2-rs -d"
|
||||
# runner = "sh -c \"cp /tmp/cargo-target/thumbv6m-none-eabi/debug/rp2040-project-template /tmp/rp.elf && picotool load /tmp/rp.elf\""
|
||||
# runner = "cp /tmp/cargo-target/thumbv6m-none-eabi/debug/rp2040-project-template /tmp/rp.elf && picotool load /tmp/rp.elf"
|
||||
runner = "pico-load-elf.sh"
|
||||
|
||||
rustflags = [
|
||||
"-C", "linker=flip-link",
|
||||
"-C", "link-arg=--nmagic",
|
||||
"-C", "link-arg=-Tlink.x",
|
||||
|
||||
# Code-size optimizations.
|
||||
# trap unreachable can save a lot of space, but requires nightly compiler.
|
||||
# uncomment the next line if you wish to enable it
|
||||
# "-Z", "trap-unreachable=no",
|
||||
"-C", "inline-threshold=5",
|
||||
"-C", "no-vectorize-loops",
|
||||
|
||||
]
|
||||
|
||||
[build]
|
||||
target = "thumbv6m-none-eabi"
|
||||
|
||||
[env]
|
||||
DEFMT_LOG = "debug"
|
||||
380
rust-with-c/Cargo.lock
generated
Normal file
380
rust-with-c/Cargo.lock
generated
Normal file
@ -0,0 +1,380 @@
|
||||
# This file is automatically @generated by Cargo.
|
||||
# It is not intended for manual editing.
|
||||
version = 3
|
||||
|
||||
[[package]]
|
||||
name = "arrayvec"
|
||||
version = "0.7.4"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "96d30a06541fbafbc7f82ed10c06164cfbd2c401138f6addd8404629c4b16711"
|
||||
|
||||
[[package]]
|
||||
name = "bare-metal"
|
||||
version = "0.2.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "5deb64efa5bd81e31fcd1938615a6d98c82eafcbcd787162b6f63b91d6bac5b3"
|
||||
dependencies = [
|
||||
"rustc_version",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "bitfield"
|
||||
version = "0.13.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "46afbd2983a5d5a7bd740ccb198caf5b82f45c40c09c0eed36052d91cb92e719"
|
||||
|
||||
[[package]]
|
||||
name = "cc"
|
||||
version = "1.0.83"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "f1174fb0b6ec23863f8b971027804a42614e347eafb0a95bf0b12cdae21fc4d0"
|
||||
dependencies = [
|
||||
"libc",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "cmake"
|
||||
version = "0.1.50"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "a31c789563b815f77f4250caee12365734369f942439b7defd71e18a48197130"
|
||||
dependencies = [
|
||||
"cc",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "cortex-m"
|
||||
version = "0.7.7"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "8ec610d8f49840a5b376c69663b6369e71f4b34484b9b2eb29fb918d92516cb9"
|
||||
dependencies = [
|
||||
"bare-metal",
|
||||
"bitfield",
|
||||
"embedded-hal",
|
||||
"volatile-register",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "cortex-m-rt"
|
||||
version = "0.7.3"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "ee84e813d593101b1723e13ec38b6ab6abbdbaaa4546553f5395ed274079ddb1"
|
||||
dependencies = [
|
||||
"cortex-m-rt-macros",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "cortex-m-rt-macros"
|
||||
version = "0.7.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "f0f6f3e36f203cfedbc78b357fb28730aa2c6dc1ab060ee5c2405e843988d3c7"
|
||||
dependencies = [
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"syn",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "crc-any"
|
||||
version = "2.4.4"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "c01a5e1f881f6fb6099a7bdf949e946719fd4f1fefa56264890574febf0eb6d0"
|
||||
dependencies = [
|
||||
"debug-helper",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "critical-section"
|
||||
version = "1.1.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "7059fff8937831a9ae6f0fe4d658ffabf58f2ca96aa9dec1c889f936f705f216"
|
||||
|
||||
[[package]]
|
||||
name = "debug-helper"
|
||||
version = "0.3.13"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "f578e8e2c440e7297e008bb5486a3a8a194775224bbc23729b0dbdfaeebf162e"
|
||||
|
||||
[[package]]
|
||||
name = "either"
|
||||
version = "1.9.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "a26ae43d7bcc3b814de94796a5e736d4029efb0ee900c12e2d54c993ad1a1e07"
|
||||
|
||||
[[package]]
|
||||
name = "embedded-dma"
|
||||
version = "0.2.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "994f7e5b5cb23521c22304927195f236813053eb9c065dd2226a32ba64695446"
|
||||
dependencies = [
|
||||
"stable_deref_trait",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "embedded-hal"
|
||||
version = "0.2.7"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "35949884794ad573cf46071e41c9b60efb0cb311e3ca01f7af807af1debc66ff"
|
||||
dependencies = [
|
||||
"nb 0.1.3",
|
||||
"void",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "fugit"
|
||||
version = "0.3.7"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "17186ad64927d5ac8f02c1e77ccefa08ccd9eaa314d5a4772278aa204a22f7e7"
|
||||
dependencies = [
|
||||
"gcd",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "gcd"
|
||||
version = "2.3.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "1d758ba1b47b00caf47f24925c0074ecb20d6dfcffe7f6d53395c0465674841a"
|
||||
|
||||
[[package]]
|
||||
name = "itertools"
|
||||
version = "0.10.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "b0fd2260e829bddf4cb6ea802289de2f86d6a7a690192fbe91b3f46e0f2c8473"
|
||||
dependencies = [
|
||||
"either",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "libc"
|
||||
version = "0.2.153"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "9c198f91728a82281a64e1f4f9eeb25d82cb32a5de251c6bd1b5154d63a8e7bd"
|
||||
|
||||
[[package]]
|
||||
name = "nb"
|
||||
version = "0.1.3"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "801d31da0513b6ec5214e9bf433a77966320625a37860f910be265be6e18d06f"
|
||||
dependencies = [
|
||||
"nb 1.1.0",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "nb"
|
||||
version = "1.1.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "8d5439c4ad607c3c23abf66de8c8bf57ba8adcd1f129e699851a6e43935d339d"
|
||||
|
||||
[[package]]
|
||||
name = "num_enum"
|
||||
version = "0.5.11"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "1f646caf906c20226733ed5b1374287eb97e3c2a5c227ce668c1f2ce20ae57c9"
|
||||
dependencies = [
|
||||
"num_enum_derive",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "num_enum_derive"
|
||||
version = "0.5.11"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "dcbff9bc912032c62bf65ef1d5aea88983b420f4f839db1e9b0c281a25c9c799"
|
||||
dependencies = [
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"syn",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "paste"
|
||||
version = "1.0.14"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "de3145af08024dea9fa9914f381a17b8fc6034dfb00f3a84013f7ff43f29ed4c"
|
||||
|
||||
[[package]]
|
||||
name = "pio"
|
||||
version = "0.2.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "76e09694b50f89f302ed531c1f2a7569f0be5867aee4ab4f8f729bbeec0078e3"
|
||||
dependencies = [
|
||||
"arrayvec",
|
||||
"num_enum",
|
||||
"paste",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "proc-macro2"
|
||||
version = "1.0.78"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "e2422ad645d89c99f8f3e6b88a9fdeca7fabeac836b1002371c4367c8f984aae"
|
||||
dependencies = [
|
||||
"unicode-ident",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "quote"
|
||||
version = "1.0.35"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "291ec9ab5efd934aaf503a6466c5d5251535d108ee747472c3977cc5acc868ef"
|
||||
dependencies = [
|
||||
"proc-macro2",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "rand_core"
|
||||
version = "0.6.4"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "ec0be4795e2f6a28069bec0b5ff3e2ac9bafc99e6a9a7dc3547996c5c816922c"
|
||||
|
||||
[[package]]
|
||||
name = "rblink"
|
||||
version = "0.1.0"
|
||||
dependencies = [
|
||||
"cmake",
|
||||
"cortex-m",
|
||||
"cortex-m-rt",
|
||||
"embedded-hal",
|
||||
"rp-pico",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "rp-pico"
|
||||
version = "0.7.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "aab28f6f4e19cec2d61b64cdd685e69794b81c579fd3b765579c46018fe616d0"
|
||||
dependencies = [
|
||||
"cortex-m",
|
||||
"cortex-m-rt",
|
||||
"fugit",
|
||||
"rp2040-boot2",
|
||||
"rp2040-hal",
|
||||
"usb-device",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "rp2040-boot2"
|
||||
version = "0.2.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "3c773ec49b836077aa144b58dc7654a243e1eecdb6cf0d25361ae7c7600fabd8"
|
||||
dependencies = [
|
||||
"crc-any",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "rp2040-hal"
|
||||
version = "0.8.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "1369bb84862d7f69391a96606b2f29a00bfce7f29a749e23d5f01fc3f607ada0"
|
||||
dependencies = [
|
||||
"cortex-m",
|
||||
"critical-section",
|
||||
"embedded-dma",
|
||||
"embedded-hal",
|
||||
"fugit",
|
||||
"itertools",
|
||||
"nb 1.1.0",
|
||||
"paste",
|
||||
"pio",
|
||||
"rand_core",
|
||||
"rp2040-hal-macros",
|
||||
"rp2040-pac",
|
||||
"usb-device",
|
||||
"vcell",
|
||||
"void",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "rp2040-hal-macros"
|
||||
version = "0.1.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "86479063e497efe1ae81995ef9071f54fd1c7427e04d6c5b84cde545ff672a5e"
|
||||
dependencies = [
|
||||
"cortex-m-rt",
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"syn",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "rp2040-pac"
|
||||
version = "0.4.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "9192cafbb40d717c9e0ddf767aaf9c69fee1b4e48d22ed853b57b11f6d9f3d7e"
|
||||
dependencies = [
|
||||
"cortex-m",
|
||||
"cortex-m-rt",
|
||||
"vcell",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "rustc_version"
|
||||
version = "0.2.3"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "138e3e0acb6c9fb258b19b67cb8abd63c00679d2851805ea151465464fe9030a"
|
||||
dependencies = [
|
||||
"semver",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "semver"
|
||||
version = "0.9.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "1d7eb9ef2c18661902cc47e535f9bc51b78acd254da71d375c2f6720d9a40403"
|
||||
dependencies = [
|
||||
"semver-parser",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "semver-parser"
|
||||
version = "0.7.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
|
||||
|
||||
[[package]]
|
||||
name = "stable_deref_trait"
|
||||
version = "1.2.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "a8f112729512f8e442d81f95a8a7ddf2b7c6b8a1a6f509a95864142b30cab2d3"
|
||||
|
||||
[[package]]
|
||||
name = "syn"
|
||||
version = "1.0.109"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "72b64191b275b66ffe2469e8af2c1cfe3bafa67b529ead792a6d0160888b4237"
|
||||
dependencies = [
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"unicode-ident",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "unicode-ident"
|
||||
version = "1.0.12"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "3354b9ac3fae1ff6755cb6db53683adb661634f67557942dea4facebec0fee4b"
|
||||
|
||||
[[package]]
|
||||
name = "usb-device"
|
||||
version = "0.2.9"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "1f6cc3adc849b5292b4075fc0d5fdcf2f24866e88e336dd27a8943090a520508"
|
||||
|
||||
[[package]]
|
||||
name = "vcell"
|
||||
version = "0.1.3"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "77439c1b53d2303b20d9459b1ade71a83c716e3f9c34f3228c00e6f185d6c002"
|
||||
|
||||
[[package]]
|
||||
name = "void"
|
||||
version = "1.0.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "6a02e4885ed3bc0f2de90ea6dd45ebcbb66dacffe03547fadbb0eeae2770887d"
|
||||
|
||||
[[package]]
|
||||
name = "volatile-register"
|
||||
version = "0.2.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "de437e2a6208b014ab52972a27e59b33fa2920d3e00fe05026167a1c509d19cc"
|
||||
dependencies = [
|
||||
"vcell",
|
||||
]
|
||||
69
rust-with-c/Cargo.toml
Normal file
69
rust-with-c/Cargo.toml
Normal file
@ -0,0 +1,69 @@
|
||||
[package]
|
||||
name = "rblink"
|
||||
version = "0.1.0"
|
||||
edition = "2021"
|
||||
build="build.rs"
|
||||
|
||||
[dependencies]
|
||||
cortex-m = "0.7"
|
||||
cortex-m-rt = "0.7"
|
||||
rp-pico = "0.7.0"
|
||||
|
||||
|
||||
embedded-hal = { version = "0.2.5", features = ["unproven"] }
|
||||
|
||||
|
||||
[build-dependencies]
|
||||
cmake = "0.1"
|
||||
|
||||
# cargo build/run
|
||||
[profile.dev]
|
||||
codegen-units = 1
|
||||
debug = 2
|
||||
debug-assertions = true
|
||||
incremental = false
|
||||
opt-level = 3
|
||||
overflow-checks = true
|
||||
|
||||
# cargo build/run --release
|
||||
[profile.release]
|
||||
codegen-units = 1
|
||||
debug = 2
|
||||
debug-assertions = false
|
||||
incremental = false
|
||||
lto = 'fat'
|
||||
opt-level = 3
|
||||
overflow-checks = false
|
||||
|
||||
# do not optimize proc-macro crates = faster builds from scratch
|
||||
[profile.dev.build-override]
|
||||
codegen-units = 8
|
||||
debug = false
|
||||
debug-assertions = false
|
||||
opt-level = 0
|
||||
overflow-checks = false
|
||||
|
||||
[profile.release.build-override]
|
||||
codegen-units = 8
|
||||
debug = false
|
||||
debug-assertions = false
|
||||
opt-level = 0
|
||||
overflow-checks = false
|
||||
|
||||
# cargo test
|
||||
[profile.test]
|
||||
codegen-units = 1
|
||||
debug = 2
|
||||
debug-assertions = true
|
||||
incremental = false
|
||||
opt-level = 3
|
||||
overflow-checks = true
|
||||
|
||||
# cargo test --release
|
||||
[profile.bench]
|
||||
codegen-units = 1
|
||||
debug = 2
|
||||
debug-assertions = false
|
||||
incremental = false
|
||||
lto = 'fat'
|
||||
opt-level = 3
|
||||
23
rust-with-c/build.rs
Normal file
23
rust-with-c/build.rs
Normal file
@ -0,0 +1,23 @@
|
||||
extern crate cmake;
|
||||
use cmake::Config;
|
||||
|
||||
use std::env;
|
||||
use std::fs::File;
|
||||
use std::io::Write;
|
||||
use std::path::PathBuf;
|
||||
|
||||
fn main() {
|
||||
let dst = Config::new("libblink").build();
|
||||
|
||||
// Put `memory.x` in our output directory and ensure it's
|
||||
// on the linker search path.
|
||||
let out = &PathBuf::from(env::var_os("OUT_DIR").unwrap());
|
||||
File::create(out.join("memory.x"))
|
||||
.unwrap()
|
||||
.write_all(include_bytes!("memory.x"))
|
||||
.unwrap();
|
||||
println!("cargo:rustc-link-search={}", out.display());
|
||||
|
||||
println!("cargo:rustc-link-search=native={}", dst.display());
|
||||
println!("cargo:rustc-link-lib=static=blink");
|
||||
}
|
||||
13
rust-with-c/build.sh
Executable file
13
rust-with-c/build.sh
Executable file
@ -0,0 +1,13 @@
|
||||
#!/bin/bash
|
||||
set -euxo pipefail
|
||||
|
||||
# run: rustup target add thumbv6m-none-eabi
|
||||
# run: cargo install flip-link
|
||||
|
||||
CARGO_TARGET_DIR=/tmp/cargo-target cargo build -vv --release --target thumbv6m-none-eabi
|
||||
|
||||
picotool info
|
||||
mv /tmp/cargo-target/thumbv6m-none-eabi/release/rblink /tmp/rp.elf
|
||||
picotool load /tmp/rp.elf
|
||||
picotool reboot
|
||||
|
||||
21
rust-with-c/libblink/CMakeLists.txt
Normal file
21
rust-with-c/libblink/CMakeLists.txt
Normal file
@ -0,0 +1,21 @@
|
||||
cmake_minimum_required(VERSION 3.12)
|
||||
|
||||
# Pull in SDK (must be before project)
|
||||
include(pico_sdk_import.cmake)
|
||||
|
||||
project(pico_examples C CXX ASM)
|
||||
set(CMAKE_C_STANDARD 17)
|
||||
set(CMAKE_CXX_STANDARD 17)
|
||||
|
||||
# Initialize the SDK
|
||||
pico_sdk_init()
|
||||
|
||||
add_library(blink STATIC blink.c)
|
||||
|
||||
target_link_libraries(
|
||||
blink
|
||||
pico_stdlib
|
||||
)
|
||||
|
||||
install(TARGETS blink DESTINATION .)
|
||||
|
||||
56
rust-with-c/libblink/blink.c
Normal file
56
rust-with-c/libblink/blink.c
Normal file
@ -0,0 +1,56 @@
|
||||
#include "pico/stdlib.h"
|
||||
#include "pico/bootrom.h"
|
||||
|
||||
// https://rust-lang.github.io/unsafe-code-guidelines/layout/scalars.html
|
||||
// bool is compatible
|
||||
#define i8 int8_t
|
||||
#define i16 int16_t
|
||||
#define i32 int32_t
|
||||
|
||||
#define u8 uint8_t
|
||||
#define u16 uint16_t
|
||||
#define u32 uint32_t
|
||||
|
||||
#define i64 int64_t
|
||||
#define u64 uint64_t
|
||||
|
||||
#define isize intptr_t
|
||||
#define usize uintptr_t
|
||||
|
||||
|
||||
// used from rust
|
||||
const uint LED_PIN = PICO_DEFAULT_LED_PIN;
|
||||
uint led_pin() {
|
||||
return PICO_DEFAULT_LED_PIN;
|
||||
}
|
||||
// without this: undefined reference to `gpio_set_dir'
|
||||
void c_gpio_set_dir(uint gpio, bool out) {
|
||||
return gpio_set_dir(gpio, out);
|
||||
}
|
||||
// without this: undefined reference to `gpio_put'
|
||||
void c_gpio_put(uint gpio, bool value) {
|
||||
return gpio_put(gpio, value);
|
||||
}
|
||||
|
||||
|
||||
// defined in rust
|
||||
u32 add_half(u32 num);
|
||||
int rs_main();
|
||||
|
||||
int c_main() {
|
||||
gpio_init(LED_PIN);
|
||||
gpio_set_dir(LED_PIN, GPIO_OUT);
|
||||
int sleep = 250;
|
||||
while (true) {
|
||||
gpio_put(LED_PIN, 1);
|
||||
sleep_ms(sleep);
|
||||
gpio_put(LED_PIN, 0);
|
||||
sleep_ms(sleep);
|
||||
sleep = add_half(sleep);
|
||||
// in rust:
|
||||
//reset_to_usb_boot(LED_PIN, 0);
|
||||
if(sleep > 2000) {
|
||||
reset_usb_boot(LED_PIN, 0);
|
||||
}
|
||||
}
|
||||
}
|
||||
62
rust-with-c/libblink/pico_sdk_import.cmake
Normal file
62
rust-with-c/libblink/pico_sdk_import.cmake
Normal file
@ -0,0 +1,62 @@
|
||||
# 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 ()
|
||||
FetchContent_Declare(
|
||||
pico_sdk
|
||||
GIT_REPOSITORY https://github.com/raspberrypi/pico-sdk
|
||||
GIT_TAG master
|
||||
)
|
||||
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})
|
||||
15
rust-with-c/memory.x
Normal file
15
rust-with-c/memory.x
Normal file
@ -0,0 +1,15 @@
|
||||
MEMORY {
|
||||
BOOT2 : ORIGIN = 0x10000000, LENGTH = 0x100
|
||||
FLASH : ORIGIN = 0x10000100, LENGTH = 2048K - 0x100
|
||||
RAM : ORIGIN = 0x20000000, LENGTH = 256K
|
||||
}
|
||||
|
||||
EXTERN(BOOT2_FIRMWARE)
|
||||
|
||||
SECTIONS {
|
||||
/* ### Boot loader */
|
||||
.boot2 ORIGIN(BOOT2) :
|
||||
{
|
||||
KEEP(*(.boot2));
|
||||
} > BOOT2
|
||||
} INSERT BEFORE .text;
|
||||
125
rust-with-c/src/main.rs
Normal file
125
rust-with-c/src/main.rs
Normal file
@ -0,0 +1,125 @@
|
||||
#![no_std]
|
||||
#![no_main]
|
||||
|
||||
use bsp::entry;
|
||||
|
||||
// Provide an alias for our BSP so we can switch targets quickly.
|
||||
// Uncomment the BSP you included in Cargo.toml, the rest of the code does not need to change.
|
||||
use rp_pico as bsp;
|
||||
// use sparkfun_pro_micro_rp2040 as bsp;
|
||||
|
||||
use bsp::hal::{
|
||||
clocks::{init_clocks_and_plls, Clock},
|
||||
pac,
|
||||
sio::Sio,
|
||||
watchdog::Watchdog,
|
||||
};
|
||||
|
||||
|
||||
|
||||
// https://doc.rust-lang.org/core/ffi/index.html
|
||||
use core::ffi::{c_int, c_uint, c_void};
|
||||
|
||||
#[panic_handler]
|
||||
fn oh_no(_panic_info: &core::panic::PanicInfo) -> ! {
|
||||
loop {}
|
||||
}
|
||||
|
||||
|
||||
mod c {
|
||||
use core::ffi::{c_int, c_uint, c_void};
|
||||
#[link(name = "blink", kind = "static")]
|
||||
extern "C" {
|
||||
pub(super) static LED_PIN: c_uint;
|
||||
|
||||
// https://www.raspberrypi.com/documentation/pico-sdk/high_level.html
|
||||
pub(super) fn gpio_init(gpio: c_uint) -> c_void;
|
||||
pub(super) fn c_gpio_set_dir(gpio: c_uint, on_off: bool) -> c_void;
|
||||
pub(super) fn c_gpio_put(gpio: c_uint, on_off: bool) -> c_void;
|
||||
|
||||
pub(super) fn sleep_us(us: u64) -> c_void;
|
||||
pub(super) fn sleep_ms(ms: u32) -> c_void;
|
||||
|
||||
|
||||
pub(super) fn c_main() -> c_void;
|
||||
}
|
||||
}
|
||||
|
||||
static LED_PIN: &c_uint = unsafe { &c::LED_PIN };
|
||||
|
||||
fn gpio_init(gpio: c_uint) {
|
||||
unsafe { c::gpio_init(gpio) };
|
||||
}
|
||||
fn gpio_set_dir(gpio: c_uint, on_off: bool) {
|
||||
unsafe { c::c_gpio_set_dir(gpio, on_off) };
|
||||
}
|
||||
fn gpio_put(gpio: c_uint, on_off: bool) {
|
||||
unsafe { c::c_gpio_put(gpio, on_off) };
|
||||
}
|
||||
|
||||
fn sleep_us(us: u64) {
|
||||
unsafe { c::sleep_us(us) };
|
||||
}
|
||||
fn sleep_ms(ms: u32) {
|
||||
unsafe { c::sleep_ms(ms) };
|
||||
}
|
||||
|
||||
#[no_mangle]
|
||||
pub extern "C" fn rs_main() -> c_int {
|
||||
let led_pin = *LED_PIN;
|
||||
gpio_init(led_pin);
|
||||
gpio_set_dir(led_pin, true);
|
||||
let mut sleep = 250;
|
||||
loop {
|
||||
gpio_put(led_pin, true);
|
||||
sleep_ms(sleep);
|
||||
gpio_put(led_pin, false);
|
||||
sleep_ms(sleep);
|
||||
sleep = add_half(sleep);
|
||||
}
|
||||
}
|
||||
|
||||
#[no_mangle]
|
||||
pub extern "C" fn add_half(num: u32) -> u32 {
|
||||
let mut half = num / 2;
|
||||
if half == 0 {
|
||||
half = 1;
|
||||
}
|
||||
num.wrapping_add(half)
|
||||
}
|
||||
|
||||
|
||||
#[entry]
|
||||
fn main() -> ! {
|
||||
let mut pac = pac::Peripherals::take().unwrap();
|
||||
let mut watchdog = Watchdog::new(pac.WATCHDOG);
|
||||
let sio = Sio::new(pac.SIO);
|
||||
|
||||
// External high-speed crystal on the pico board is 12Mhz
|
||||
let external_xtal_freq_hz = 12_000_000u32;
|
||||
let clocks = init_clocks_and_plls(
|
||||
external_xtal_freq_hz,
|
||||
pac.XOSC,
|
||||
pac.CLOCKS,
|
||||
pac.PLL_SYS,
|
||||
pac.PLL_USB,
|
||||
&mut pac.RESETS,
|
||||
&mut watchdog,
|
||||
)
|
||||
.ok()
|
||||
.unwrap();
|
||||
|
||||
let pins = bsp::Pins::new(
|
||||
pac.IO_BANK0,
|
||||
pac.PADS_BANK0,
|
||||
sio.gpio_bank0,
|
||||
&mut pac.RESETS,
|
||||
);
|
||||
|
||||
//use embedded_hal::watchdog::WatchdogEnable;
|
||||
//watchdog.start(10);
|
||||
|
||||
//rs_main();
|
||||
unsafe { c::c_main() };
|
||||
loop{}
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user