Add reactor uc

.gitignore

@@ -0,0 +1,14 @@
+src-gen
+bin
+build
+include
+
+scripts/__pycache__
+build/
+
+.venv/
+.vscode/
+**/build
+**/src-gen/
+**/include/
+

.gitmodules

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+[submodule "RIOT"]
+	path = RIOT
+	url = git@github.com:RIOT-OS/RIOT.git

Makefile

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+# The name of the LF application inside "./src" to build/run/flash etc.
+LF_MAIN ?= HelloWorld
+
+# Enable reactor-uc features
+# CFLAGS += -DNETWORK_CHANNEL_TCP_POSIX
+# CFLAGS += -DNETWORK_CHANNEL_COAP_RIOT
+
+# Execute the LF compiler if build target is "all"
+ifeq ($(MAKECMDGOALS),all)
+  _ :=  $(shell $(REACTOR_UC_PATH)/lfc/bin/lfc-dev src/$(LF_MAIN).lf)
+endif
+
+# ---- RIOT specific configuration ----
+# This has to be the absolute path to the RIOT base directory:
+RIOTBASE ?= $(CURDIR)/RIOT
+
+# If no BOARD is found in the environment, use this default:
+BOARD ?= native
+
+# Comment this out to disable code in RIOT that does safety checking
+# which is not needed in a production environment but helps in the
+# development process:
+DEVELHELP ?= 1
+
+# Change this to 0 show compiler invocation lines by default:
+QUIET ?= 1
+
+include $(REACTOR_UC_PATH)/make/riot/riot-lfc.mk

README.md

@@ -1,2 +1,53 @@
 # Template project for LF applications based on RIOT OS
 
+This is a template for Lingua Franca applications targeting RIOT OS.
+
+## Getting started
+
+1. Configure the name of the LF application you want to build inside the `Makefile` by specifying the `LF_MAIN` variable.
+2. Configure the board to flash in the `Makefile` by specifying the `BOARD` variable.
+
+### Example
+
+```Makefile
+LF_MAIN ?= HelloWorld
+BOARD ?= native
+```
+
+## Build
+
+```bash
+make all
+```
+
+or with parameters to override the `Makefile configuration
+
+```bash
+LF_MAIN=HelloWorld BOARD=native make all
+```
+
+## Flash
+
+```bash
+make flash
+```
+
+or with parameters to override the `Makefile configuration
+
+```bash
+LF_MAIN=HelloWorld BOARD=native make flash
+```
+
+## Open Terminal
+
+This allows to run CLI commands if a CLI is enabled or seeing debug logs etc.
+
+```bash
+make term
+```
+
+or with parameters to override the `Makefile configuration
+
+```bash
+LF_MAIN=HelloWorld BOARD=native make term
+```

src/HelloWorld.lf

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+target uC {
+    timeout: 3 sec
+}
+
+main reactor {
+    timer t(0, 1 sec)
+    reaction(t) {=
+        printf("Hello World from R2\n");
+    =}
+}
+