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+/******************************************************************************
+ * The MIT License
+ *
+ * Copyright (c) 2011 LeafLabs, LLC.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *****************************************************************************/
+
+/**
+ * @file   wirish/boards/maple/include/board/board.h
+ * @author Marti Bolivar <mbolivar@leaflabs.com>
+ * @brief  Maple board header.
+ */
+
+#ifndef _BOARD_MAPLE_H_
+#define _BOARD_MAPLE_H_
+
+/* 72 MHz -> 72 cycles per microsecond. */
+#define CYCLES_PER_MICROSECOND  72
+
+/* Pin number for the built-in button. */
+#define BOARD_BUTTON_PIN        38
+
+/* Pin number for the built-in LED. */
+#define BOARD_LED_PIN           13
+
+/* Number of USARTs/UARTs whose pins are broken out to headers. */
+#define BOARD_NR_USARTS         3
+
+/* USART pin numbers. */
+#define BOARD_USART1_TX_PIN     7
+#define BOARD_USART1_RX_PIN     8
+#define BOARD_USART2_TX_PIN     1
+#define BOARD_USART2_RX_PIN     0
+#define BOARD_USART3_TX_PIN     29
+#define BOARD_USART3_RX_PIN     30
+
+/* Number of SPI ports broken out to headers. */
+#define BOARD_NR_SPI            2
+
+/* SPI pin numbers. */
+#define BOARD_SPI1_NSS_PIN      10
+#define BOARD_SPI1_MOSI_PIN     11
+#define BOARD_SPI1_MISO_PIN     12
+#define BOARD_SPI1_SCK_PIN      13
+#define BOARD_SPI2_NSS_PIN      31
+#define BOARD_SPI2_MOSI_PIN     34
+#define BOARD_SPI2_MISO_PIN     33
+#define BOARD_SPI2_SCK_PIN      32
+
+/* Total number of GPIO pins that are broken out to headers and
+ * intended for use. This includes pins like the LED, button, and
+ * debug port (JTAG/SWD) pins. */
+#define BOARD_NR_GPIO_PINS      44
+
+/* Number of pins capable of PWM output. */
+#define BOARD_NR_PWM_PINS       15
+
+/* Number of pins capable of ADC conversion. */
+#define BOARD_NR_ADC_PINS       15
+
+/* Number of pins already connected to external hardware.  For Maple,
+ * these are just BOARD_LED_PIN, BOARD_BUTTON_PIN, and the debug port
+ * pins (see below). */
+#define BOARD_NR_USED_PINS       7
+
+/* Debug port pins. */
+#define BOARD_JTMS_SWDIO_PIN    39
+#define BOARD_JTCK_SWCLK_PIN    40
+#define BOARD_JTDI_PIN          41
+#define BOARD_JTDO_PIN          42
+#define BOARD_NJTRST_PIN        43
+
+/* USB configuration.  BOARD_USB_DISC_DEV is the GPIO port containing
+ * the USB_DISC pin, and BOARD_USB_DISC_BIT is that pin's bit. */
+#define BOARD_USB_DISC_DEV      GPIOC
+#define BOARD_USB_DISC_BIT      12
+
+/* Pin aliases: these give the GPIO port/bit for each pin as an
+ * enum. These are optional, but recommended. They make it easier to
+ * write code using low-level GPIO functionality. */
+enum {
+    PA3, PA2, PA0, PA1, PB5, PB6, PA8, PA9, PA10, PB7, PA4, PA7, PA6, PA5, PB8,
+    PC0, PC1, PC2, PC3, PC4, PC5, PC13, PC14, PC15, PB9, PD2, PC10, PB0, PB1,
+    PB10, PB11, PB12, PB13, PB14, PB15, PC6, PC7, PC8, PC9, PA13, PA14, PA15,
+    PB3, PB4
+};
+
+#endif