This code builds from the pico-w-blink-sdk example in the swift-embedded-examples repo, but using the CMakeLists.txt from apple/swift-embedded-examples#63 which at time of writing was not on main.
It adds more features piece by piece until is has a similar but not identical behavior to the default firmware on the badge.
Each numbered folder is its own project. Before compiling any of them:
- get the swift nightly toolchain
- get the pico-sdk, or better yet, go ahead and follow the getting started directions in the getting started PDF to make sure your board and dev environment can at least handle the C.
Things to check if the build.sh in any folder doesn't work:
- change the toolchain location in build.sh to the actual nightly being used.
- make sure the pico SDK location in build.sh is the same as your pico SDK location.
- attach the pico-w to the computer holding down the BOOTSEL and confirm the name of the volume is the same as the one in the build.sh
- set the permissions on the build.sh script (
chmod 755 build.sh)and run as current shell. ./build.sh
- https://github.com/apple/swift-embedded-examples/tree/main
- https://github.com/apple/swift-embedded-examples/tree/main/pico-w-blink-sdk
- https://apple.github.io/swift-matter-examples/tutorials/swiftmatterexamples/setup-macos/
- https://github.com/Hack-a-Day/2024-Supercon-8-Add-On-Badge
- https://github.com/todbot/TouchwheelSAO
- https://datasheets.raspberrypi.com/pico/getting-started-with-pico.pdf
- apple/swift-embedded-examples#59 (comment)
- apple/swift-embedded-examples#62
- apple/swift-embedded-examples#63
- https://github.com/apple/swift-matter-examples/blob/main/empty-template/main/CMakeLists.txt
- https://www.swift.org/getting-started/embedded-swift/
- https://www.digikey.com/en/maker/projects/raspberry-pi-pico-rp2040-i2c-example-with-micropython-and-cc/47d0c922b79342779cdbd4b37b7eb7e2
- https://www.raspberrypi.com/documentation/pico-sdk/hardware.html#group_hardware_i2c
- https://github.com/raspberrypi/pico-examples/blob/master/i2c/bus_scan/bus_scan.c
- https://github.com/raspberrypi/pico-examples/blob/master/CMakeLists.txt
- https://forums.swift.org/t/embedded-swift-running-on-the-raspberry-pi-pico/69001/26?page=2
- https://github.com/navanchauhan/SwiftLVGL
- https://www.raspberrypi.com/documentation/pico-sdk/hardware.html#hardware_gpio
- https://github.com/raspberrypi/pico-sdk/blob/master/src/rp2_common/pico_cyw43_arch/include/pico/cyw43_arch.h
- https://github.com/ole/pico-embedded-swift
Whats the deal:
-
https://stackoverflow.com/questions/6563120/what-does-posix-memalign-memalign-do
-
https://pubs.opengroup.org/onlinepubs/9799919799.2024edition/functions/posix_memalign.html
-
Can't add -Xcc -std=c99 b/c SDK doesn't follow that?? Maybe also TODO: check if C11 (https://stackoverflow.com/a/53630273)
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Not tried: flatalloc https://stackoverflow.com/a/68010104
-
https://forums.swift.org/t/embedded-swift-running-on-the-raspberry-pi-pico/69001/28
In the end used the function in the below example. In the Badge example it lives in LanguageSupport.swift