Add support for STM32F7 MCU

Marlin/src/HAL/HAL_STM32F7/fastio_STM32F7.h

@@ -0,0 +1,54 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
+ * Copyright (C) 2017 Victor Perez
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/**
+ * Fast I/O interfaces for STM32F7
+ * These use GPIO functions instead of Direct Port Manipulation, as on AVR.
+ */
+
+#ifndef	_FASTIO_STM32F7_H
+#define	_FASTIO_STM32F7_H
+
+#define _BV(bit) 	(1 << (bit))
+
+#define READ(IO)              digitalRead(IO)
+#define WRITE(IO, v)          digitalWrite(IO,v)
+#define TOGGLE(IO)            do{ _SET_OUTPUT(IO); digitalWrite(IO,!digitalRead(IO)); }while(0)
+#define WRITE_VAR(IO, v)      digitalWrite(IO,v)
+
+#define _GET_MODE(IO)
+#define _SET_MODE(IO,M)       pinMode(IO, M)
+#define _SET_OUTPUT(IO)       pinMode(IO, OUTPUT)								/*!< Output Push Pull Mode & GPIO_NOPULL   */
+
+#define SET_INPUT(IO)         _SET_MODE(IO, INPUT)								/*!< Input Floating Mode                   */
+#define SET_INPUT_PULLUP(IO)  _SET_MODE(IO, INPUT_PULLUP)						/*!< Input with Pull-up activation         */
+#define SET_INPUT_PULLDOW(IO) _SET_MODE(IO, INPUT_PULLDOWN)						/*!< Input with Pull-down activation       */
+#define SET_OUTPUT(IO)        do{ _SET_OUTPUT(IO); WRITE(IO, LOW); }while(0)	
+
+#define GET_INPUT(IO)         
+#define GET_OUTPUT(IO)        
+#define GET_TIMER(IO)         
+
+#define OUT_WRITE(IO, v) { _SET_OUTPUT(IO); WRITE(IO, v); }
+
+#endif	/* _FASTIO_STM32F7_H */