Sensor Watch Simulator (#35)

* Put something on screen

* Use the 32bit watch_date_time repr to pass from JS

* Implement periodic callbacks

* Clear display on enabling

* Hook up watch_set_led_color() to SVG (green-only)

* Make debug output full-width

* Remove default Emscripten canvas

* Implement sleep and button clicks

* Fix time zone conversion bug in beats-time app

* Clean up warnings

* Fix pin levels

* Set time zone to browser value (if available)

* Add basic backup data saving

* Silence format specifier warnings in both targets

* Remove unnecessary, copied files

* Use RTC pointer to clear callbacks (if available)

* Use preprocessor define to avoid hardcoding MOVEMENT_NUM_FACES

* Change each face to const preprocessor definition

* Remove Intl.DateTimeFormat usage

* Update shell.html title, header

* Add touch start/end event handlers on SVG buttons

* Update shell.html

* Update folder structure (shared, simulator, hardware under watch-library)

* Tease out shared components from watch_slcd

* Clean up simulator watch_slcd.c inline JS calls

* Fix missing newlines at end of file

* Add simulator warnings (except format, unused-paremter)

* Implement remaining watch_rtc functions

* Fix button bug on mouse down then drag out

* Implement remaining watch_slcd functions

* Link keyboard events to buttons (for keys A, L, M)

* Rewrite event handling (mouse, touch, keyboard) in C

* Set explicit text UTF-8 charset in shell.html

* Address PR comments

* Remove unused directories from include paths

watch-library/hardware/include/instance/rstc.h

@@ -0,0 +1,46 @@
+/**
+ * \file
+ *
+ * \brief Instance description for RSTC
+ *
+ * Copyright (c) 2018 Microchip Technology Inc.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the Licence at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an AS IS BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * \asf_license_stop
+ *
+ */
+
+#ifndef _SAML22_RSTC_INSTANCE_
+#define _SAML22_RSTC_INSTANCE_
+
+/* ========== Register definition for RSTC peripheral ========== */
+#if (defined(__ASSEMBLY__) || defined(__IAR_SYSTEMS_ASM__))
+#define REG_RSTC_RCAUSE            (0x40000C00) /**< \brief (RSTC) Reset Cause */
+#define REG_RSTC_BKUPEXIT          (0x40000C02) /**< \brief (RSTC) Backup Exit Source */
+#else
+#define REG_RSTC_RCAUSE            (*(RoReg8 *)0x40000C00UL) /**< \brief (RSTC) Reset Cause */
+#define REG_RSTC_BKUPEXIT          (*(RoReg8 *)0x40000C02UL) /**< \brief (RSTC) Backup Exit Source */
+#endif /* (defined(__ASSEMBLY__) || defined(__IAR_SYSTEMS_ASM__)) */
+
+/* ========== Instance parameters for RSTC peripheral ========== */
+#define RSTC_BACKUP_IMPLEMENTED     1       
+#define RSTC_NUMBER_OF_EXTWAKE      0        // number of external wakeup line
+
+#endif /* _SAML22_RSTC_INSTANCE_ */