Add support for Teensy LC board // Resolve #155

examples/teensy/teensy-internal-libs/platformio.ini

@@ -40,3 +40,9 @@ platform = teensy
 framework = arduino
 board = teensy31
 build_flags = -DTEENSY31
+
+[env:teensylc]
+platform = teensy
+framework = arduino
+board = teensylc
+build_flags = -DTEENSYLC

platformio/boards/teensy.json

@@ -71,5 +71,25 @@
         },
         "url": "https://www.pjrc.com/store/teensy31.html",
         "vendor": "Teensy"
+    },
+
+    "teensylc": {
+        "build": {
+            "core": "teensy3",
+            "extra_flags": "-D__MKL26Z64__",
+            "f_cpu": "48000000L",
+            "ldscript": "mkl26z64.ld",
+            "mcu": "mkl26z64",
+            "cpu": "cortex-m0plus"
+        },
+        "frameworks": ["arduino"],
+        "name": "Teensy LC",
+        "platform": "teensy",
+        "upload": {
+            "maximum_ram_size": 8192,
+            "maximum_size": 63488
+        },
+        "url": "http://www.pjrc.com/teensy/teensyLC.html",
+        "vendor": "Teensy"
     }
 }

platformio/builder/scripts/teensy.py

@@ -26,7 +26,14 @@ env.Append(
     CXXFLAGS=[
         "-std=gnu++0x",
         "-felide-constructors"
-    ]
+    ],
+
+    LINKFLAGS=[
+        "-Wl,--gc-sections,--relax,--defsym=__rtc_localtime=$UNIX_TIME",
+        "--specs=nano.specs"
+    ],
+
+    LIBS=["m"]
 )
 
 if isfile(env.subst(join(