Add nRF52840 RTIC example project

Cargo.toml

@@ -1,13 +1,5 @@
 [workspace]
 
-members = [
-  "anchor",
-  "anchor_codegen",
-  "anchor_macro",
-  "testjig"
-]
+members = ["anchor", "anchor_codegen", "anchor_macro", "testjig"]
 
-exclude = [
-  "rp2040_demo",
-  "esp32c3_demo",
-]
+exclude = ["rp2040_demo", "esp32c3_demo", "nrf52840_rtic_demo"]

nrf52840_rtic_demo/.cargo/config.toml

@@ -0,0 +1,22 @@
+[target.'cfg(all(target_arch = "arm", target_os = "none"))']
+runner = "probe-rs run --chip nRF52840_xxAA"
+rustflags = [
+  "-C",
+  "linker=flip-link",
+  "-C",
+  "link-arg=-Tlink.x",
+  "-C",
+  "link-arg=-Tdefmt.x",
+  # This is needed if your flash or ram addresses are not aligned to 0x10000 in memory.x
+  # See https://github.com/rust-embedded/cortex-m-quickstart/pull/95
+  "-C",
+  "link-arg=--nmagic",
+]
+
+[build]
+target = "thumbv7em-none-eabihf" # Cortex-M4F and Cortex-M7F (with FPU)
+
+[alias]
+rb = "run --bin"
+rrb = "run --release --bin"
+bbr = "build --release --bin"

nrf52840_rtic_demo/.gitignore

@@ -0,0 +1,2 @@
+/target
+Cargo.lock

nrf52840_rtic_demo/Cargo.toml

@@ -0,0 +1,75 @@
+[package]
+name = "test-app"
+edition = "2021"
+version = "0.1.0"
+
+[dependencies]
+cortex-m = { version = "0.7", features = ["critical-section-single-core"] }
+defmt = { version = "0.3", features = ["encoding-rzcobs"] }
+defmt-brtt = { version = "0.1", default-features = false, features = ["rtt"] }
+panic-probe = { version = "0.3", features = ["print-defmt"] }
+rtic = { version = "2.0.0", features = ["thumbv7-backend"] }
+nrf52840-hal = "0.16"
+rtic-monotonics = { version = "1.0.0", features = [
+  "cortex-m-systick",
+  "nrf52840",
+] }
+embassy-usb = { version = "0.1.0", features = ["defmt"] }
+embassy-nrf = { version = "0.1.0", features = ["nrf52840"] }
+embassy-futures = { version = "0.1.1", features = ["defmt"] }
+anchor = { git = "https://github.com/Annex-engineering/anchor.git" }
+rtic-sync = { version = "1.2.0", features = ["embedded-hal"] }
+embedded-hal-async = "1.0.0"
+bbqueue = "0.5.1"
+embassy-sync = "0.5.0"
+heapless = "0.8.0"
+fugit = { version = "0.3.7", features = ["defmt"] }
+
+[build-dependencies]
+anchor_codegen = { git = "https://github.com/Annex-engineering/anchor.git" }
+
+# cargo build/run
+[profile.dev]
+codegen-units = 1
+debug = 2
+debug-assertions = true # <-
+incremental = false
+opt-level = "s"         # <-
+overflow-checks = true  # <-
+
+# cargo test
+[profile.test]
+codegen-units = 1
+debug = 2
+debug-assertions = true # <-
+incremental = false
+opt-level = "s"         # <-
+overflow-checks = true  # <-
+
+# cargo build/run --release
+[profile.release]
+codegen-units = 1
+debug = 2
+debug-assertions = false # <-
+incremental = false
+lto = 'fat'
+opt-level = "s"          # <-
+overflow-checks = false  # <-
+
+# cargo test --release
+[profile.bench]
+codegen-units = 1
+debug = 2
+debug-assertions = false # <-
+incremental = false
+lto = 'fat'
+opt-level = "s"          # <-
+overflow-checks = false  # <-
+
+# uncomment this to switch from the crates.io version of defmt to its git version
+# check app-template's README for instructions
+# [patch.crates-io]
+# defmt = { git = "https://github.com/knurling-rs/defmt", rev = "use defmt version supported by probe-rs (see changelog)" }
+# defmt-rtt = { git = "https://github.com/knurling-rs/defmt", rev = "use defmt version supported by probe-rs (see changelog)" }
+# defmt-test = { git = "https://github.com/knurling-rs/defmt", rev = "use defmt version supported by probe-rs (see changelog)" }
+# panic-probe = { git = "https://github.com/knurling-rs/defmt", rev = "use defmt version supported by probe-rs (see changelog)" }

nrf52840_rtic_demo/README.md

@@ -0,0 +1,7 @@
+# Anchor nRF52840 RTIC demo
+
+This project contains a small example of integrating Anchor in an nRF52840 based
+project. This example was tested on the nRF52840-DK development kit board, but should
+work on other nRF52840 based boards too.
+
+The project uses RTIC and shows one possible way of integrating Anchor in to such a project.

nrf52840_rtic_demo/build.rs

@@ -0,0 +1,7 @@
+fn main() {
+    anchor_codegen::ConfigBuilder::new()
+        .entry("src/bin/minimal.rs")
+        .set_version("rticjig 0.1")
+        .set_build_versions("rust: someversion")
+        .build()
+}

nrf52840_rtic_demo/memory.x

@@ -0,0 +1,23 @@
+/* Linker script for the nRF52 - WITHOUT SOFT DEVICE */
+MEMORY
+{
+  /* NOTE K = KiBi = 1024 bytes */
+  FLASH : ORIGIN = 0x00000000, LENGTH = 1024K
+  RAM : ORIGIN = 0x20000000, LENGTH = 256K
+}
+
+/* This is where the call stack will be allocated. */
+/* The stack is of the full descending type. */
+/* You may want to use this variable to locate the call stack and static
+   variables in different memory regions. Below is shown the default value */
+/* _stack_start = ORIGIN(RAM) + LENGTH(RAM); */
+
+/* You can use this symbol to customize the location of the .text section */
+/* If omitted the .text section will be placed right after the .vector_table
+   section */
+/* This is required only on microcontrollers that store some configuration right
+   after the vector table */
+/* _stext = ORIGIN(FLASH) + 0x400; */
+
+/* Size of the heap (in bytes) */
+/* _heap_size = 1024; */

nrf52840_rtic_demo/rust-toolchain.toml

@@ -0,0 +1,3 @@
+[toolchain]
+channel = "nightly"
+components = [ "rust-src", "rustfmt", "llvm-tools-preview" ]