Arduino Mega support.

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@4379 35acf78f-673a-0410-8e92-d51de3d6d3f4

3 files changed, 201 insertions, 0 deletions

diff --git a/boards/ARDUINO_MEGA/board.c b/boards/ARDUINO_MEGA/board.c
new file mode 100644
index 000000000..d339613e9
--- /dev/null
+++ b/boards/ARDUINO_MEGA/board.c
@@ -0,0 +1,106 @@
+/*

+    ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,

+                 2011,2012 Giovanni Di Sirio.

+

+    This file is part of ChibiOS/RT.

+

+    ChibiOS/RT 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.

+

+    ChibiOS/RT 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/>.

+*/

+

+#include "ch.h"

+#include "hal.h"

+

+/**

+ * @brief   PAL setup.

+ * @details Digital I/O ports static configuration as defined in @p board.h.

+ *          This variable is used by the HAL when initializing the PAL driver.

+ */

+#if HAL_USE_PAL || defined(__DOXYGEN__)

+const PALConfig pal_default_config =

+{

+#if defined(PORTA)

+  {VAL_PORTA, VAL_DDRA},

+#endif

+#if defined(PORTB)

+  {VAL_PORTB, VAL_DDRB},

+#endif

+#if defined(PORTC)

+  {VAL_PORTC, VAL_DDRC},

+#endif

+#if defined(PORTD)

+  {VAL_PORTD, VAL_DDRD},

+#endif

+#if defined(PORTE)

+  {VAL_PORTE, VAL_DDRE},

+#endif

+#if defined(PORTF)

+  {VAL_PORTF, VAL_DDRF},

+#endif

+#if defined(PORTG)

+  {VAL_PORTG, VAL_DDRG},

+#endif

+#if defined(PORTH)

+  {VAL_PORTH, VAL_DDRH},

+#endif

+#if defined(PORTJ)

+  {VAL_PORTJ, VAL_DDRJ},

+#endif

+#if defined(PORTK)

+  {VAL_PORTK, VAL_DDRK},

+#endif

+#if defined(PORTL)

+  {VAL_PORTL, VAL_DDRL},

+#endif

+};

+#endif /* HAL_USE_PAL */

+

+/**

+ * @brief   Timer0 interrupt handler.

+ */

+CH_IRQ_HANDLER(TIMER0_COMPA_vect) {

+

+  CH_IRQ_PROLOGUE();

+

+  chSysLockFromIsr();

+  chSysTimerHandlerI();

+  chSysUnlockFromIsr();

+

+  CH_IRQ_EPILOGUE();

+}

+

+/**

+ * Board-specific initialization code.

+ */

+void boardInit(void) {

+

+  /*

+   * External interrupts setup, all disabled initially.

+   */

+  EICRA  = 0x00;

+  EICRB  = 0x00;

+  EIMSK  = 0x00;

+

+  /*

+   * Timer 0 setup.

+   */

+  TCCR0A  = (1 << WGM01) | (0 << WGM00) |                /* CTC mode.        */

+            (0 << COM0A1) | (0 << COM0A0) |              /* OC0A disabled.   */

+            (0 << COM0B1) | (0 << COM0B0);               /* OC0B disabled.   */

+  TCCR0B  = (0 << WGM02) |                               /* CTC mode.        */

+            (0 << CS02)  | (1 << CS01)  | (1 << CS00);   /* CLK/64 clock.    */

+  OCR0A   = F_CPU / 64 / CH_FREQUENCY - 1;

+  TCNT0   = 0;                                           /* Reset counter.   */

+  TIFR0   = (1 << OCF0A);                                /* Reset pending.   */

+  TIMSK0  = (1 << OCIE0A);                               /* IRQ on compare.  */

+}

diff --git a/boards/ARDUINO_MEGA/board.h b/boards/ARDUINO_MEGA/board.h
new file mode 100644
index 000000000..544fbb9b4
--- /dev/null
+++ b/boards/ARDUINO_MEGA/board.h
@@ -0,0 +1,90 @@
+/*

+    ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,

+                 2011,2012 Giovanni Di Sirio.

+

+    This file is part of ChibiOS/RT.

+

+    ChibiOS/RT 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.

+

+    ChibiOS/RT 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/>.

+*/

+

+#ifndef _BOARD_H_

+#define _BOARD_H_

+

+/*

+ * Setup for the Arduino Mega board.

+ */

+

+/*

+ * Board identifier.

+ */

+#define BOARD_ARDUINO_MEGA

+#define BOARD_NAME "Arduino Mega"

+

+/* All inputs with pull-ups */

+#define VAL_DDRA  0x00

+#define VAL_PORTA 0xFF

+

+/* All inputs except PB7 which has a LED connected */

+#define VAL_DDRB  0x80

+#define VAL_PORTB 0xFF

+

+/* All inputs with pull-ups */

+#define VAL_DDRC  0x00

+#define VAL_PORTC 0xFF

+

+/* All inputs with pull-ups */

+#define VAL_DDRD  0x00

+#define VAL_PORTD 0xFF

+

+/* All inputs except PE1 (Serial TX0) */

+#define VAL_DDRE  0x02

+#define VAL_PORTE 0xFF

+

+/* All inputs with pull-ups */

+#define VAL_DDRF  0x00

+#define VAL_PORTF 0xFF

+

+/* All inputs with pull-ups */

+#define VAL_DDRG  0x00

+#define VAL_PORTG 0xFF

+

+/* All inputs with pull-ups */

+#define VAL_DDRH  0x00

+#define VAL_PORTH 0xFF

+

+/* All inputs with pull-ups */

+#define VAL_DDRJ  0x00

+#define VAL_PORTJ 0xFF

+

+/* All inputs with pull-ups */

+#define VAL_DDRK  0x00

+#define VAL_PORTK 0xFF

+

+/* All inputs with pull-ups */

+#define VAL_DDRL  0x00

+#define VAL_PORTL 0xFF

+

+#define PORTB_LED1        7

+

+#if !defined(_FROM_ASM_)

+#ifdef __cplusplus

+extern "C" {

+#endif

+  void boardInit(void);

+#ifdef __cplusplus

+}

+#endif

+#endif /* _FROM_ASM_ */

+

+#endif /* _BOARD_H_ */

diff --git a/boards/ARDUINO_MEGA/board.mk b/boards/ARDUINO_MEGA/board.mk
new file mode 100644
index 000000000..8e7f1117e
--- /dev/null
+++ b/boards/ARDUINO_MEGA/board.mk
@@ -0,0 +1,5 @@
+# List of all the board related files.

+BOARDSRC = ${CHIBIOS}/boards/ARDUINO_MEGA/board.c

+

+# Required include directories

+BOARDINC = ${CHIBIOS}/boards/ARDUINO_MEGA