Merge pull request #5451 from mali/uno

boards: add arduino uno and duemilanove support

boards/arduino-common/Makefile

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+MODULE = arduino-common
+
+include $(RIOTBASE)/Makefile.base

boards/arduino-common/Makefile.features

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+# Put defined MCU peripherals here (in alphabetical order)
+FEATURES_PROVIDED += periph_gpio
+FEATURES_PROVIDED += periph_spi
+FEATURES_PROVIDED += periph_timer
+FEATURES_PROVIDED += periph_uart
+
+# Various other features (if any)
+
+# The board MPU family (used for grouping by the CI system)
+FEATURES_MCU_GROUP = avr8

boards/arduino-common/Makefile.include

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+# define the cpu used by the arduino uno and duemilanove boards
+export CPU = atmega328p
+
+# define port used to flash the board
+OS = $(shell uname)
+ifeq ($(OS),Linux)
+		PORT = $(LINUX_PORT)
+else ifeq ($(OS),Darwin)
+  PORT ?= $(firstword $(sort $(wildcard /dev/tty.usbmodem*)))
+else
+  $(info CAUTION: No flash tool for your host system found!)
+  # TODO: fix for building under windows
+endif
+
+export TERMPROG = $(RIOTBASE)/dist/tools/pyterm/pyterm
+export TERMFLAGS = -b 9600 -p $(PORT)
+export FLASHER = avrdude
+export PORT
+export DIST_PATH = $(RIOTBOARD)/$(BOARD)/dist
+export DEBUGSERVER_PORT = 4242
+export DEBUGSERVER = $(DIST_PATH)/debug_srv.sh
+export DEBUGSERVER_FLAGS = "-g -j usb :$(DEBUGSERVER_PORT)"
+export DEBUGGER_FLAGS = "-x $(RIOTBOARD)/$(BOARD)/dist/gdb.conf $(ELFFILE)"
+export DEBUGGER = $(DIST_PATH)/debug.sh $(DEBUGSERVER_FLAGS) $(DIST_PATH) $(DEBUGSERVER_PORT)
+
+# PROGRAMMER defaults to arduino which is the internal flasher via USB. Can be
+# overridden for debugging (which requires changes that require to use an ISP)
+export PROGRAMMER ?= arduino
+
+ifeq ($(PROGRAMMER), arduino)
+  export PROGRAMMER_FLAGS = -P $(PORT) -b $(PROGRAMMER_SPEED)
+endif
+
+# define build specific options
+export CFLAGS_CPU   = -mmcu=atmega328p  $(CFLAGS_FPU)
+export CFLAGS_LINK  = -ffunction-sections -fdata-sections -fno-builtin -fshort-enums
+export CFLAGS_DBG   = -ggdb -g3
+export CFLAGS_OPT  ?= -Os
+
+export CFLAGS += $(CFLAGS_CPU) $(CFLAGS_LINK) $(CFLAGS_DBG) $(CFLAGS_OPT)
+export ASFLAGS += $(CFLAGS_CPU) $(CFLAGS_DBG)
+export LINKFLAGS += $(CFLAGS_CPU) $(CFLAGS_DBG) $(CFLAGS_OPT) -static -lgcc -e reset_handler
+export OFLAGS += -j .text -j .data -O ihex
+export FFLAGS += -p atmega328p -c $(PROGRAMMER) $(PROGRAMMER_FLAGS) -F -D -U flash:w:bin/$(BOARD)/$(PROJECT)$(APPLICATION).hex

boards/arduino-common/board.c

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+/*
+ * Copyright (C) 2014 Freie Universität Berlin, Hinnerk van Bruinehsen
+ *               2015 Kaspar Schleiser <kaspar@schleiser.de>
+ *               2016 Laurent Navet <laurent.navet@gmail.com>
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser
+ * General Public License v2.1. See the file LICENSE in the top level
+ * directory for more details.
+ */
+
+/**
+ * @ingroup     boards_arduino-common
+ * @{
+ *
+ * @file
+ * @brief       Board specific implementations for the arduino Uno
+ * @brief       and Duemilanove boards.
+ *
+ * @author      Hinnerk van Bruinehsen <h.v.bruinehsen@fu-berlin.de>
+ * @author      Kaspar Schleiser <kaspar@schleiser.de>
+ * @author      Laurent Navet <laurent.navet@gmail.com>
+ *
+ * @}
+ */
+
+#include <stdio.h>
+#include <avr/io.h>
+
+#include "board.h"
+#include "cpu.h"
+#include "uart_stdio.h"
+
+void led_init(void);
+void SystemInit(void);
+static int uart_putchar(char c, FILE *stream);
+static int uart_getchar(FILE *stream);
+
+static FILE uart_stdout = FDEV_SETUP_STREAM(uart_putchar, NULL, _FDEV_SETUP_WRITE);
+static FILE uart_stdin = FDEV_SETUP_STREAM(NULL, uart_getchar, _FDEV_SETUP_READ);
+
+void board_init(void)
+{
+    /* initialize stdio via USART_0 */
+    SystemInit();
+
+    /* initialize the CPU */
+    cpu_init();
+
+    /* initialize the board LED (connected to pin PB5) */
+    DDRB |= (1 << DDB5);
+    PORTB &= ~(1 << 5);
+
+    irq_enable();
+}
+
+/**
+ * @brief Initialize the System, initialize IO via UART_0
+ */
+void SystemInit(void)
+{
+    /* initialize UART_0 for use as stdout */
+    uart_stdio_init();
+
+    stdout = &uart_stdout;
+    stdin = &uart_stdin;
+
+    /* Flush stdout */
+    puts("\f");
+}
+
+static int uart_putchar(char c, FILE *stream)
+{
+    (void) stream;
+    uart_stdio_write(&c, 1);
+    return 0;
+}
+
+int uart_getchar(FILE *stream)
+{
+    (void) stream;
+    char c;
+    uart_stdio_read(&c, 1);
+    return (int)c;
+}

boards/arduino-common/dist/debug.sh

@@ -0,0 +1,8 @@
+#!/usr/bin/env bash
+sleep 2
+setsid -w avarice $1 &
+#sleep 2 && $2/avr-gdb-wrapper -ex "target remote localhost:$3" $4
+sleep 3 && avr-gdb -ex "target remote localhost:$3" $4
+
+# avarice exits with 1 if the connection is released, therefore we always exit with 0
+exit 0

boards/arduino-common/dist/debug_srv.sh

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+#!/usr/bin/env bash
+
+sleep 2
+avarice $1
+
+# avarice exits with 1 if the connection is released, therefore we always exit with 0
+exit 0

boards/arduino-common/dist/gdb.conf

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+set $pc=0x00

boards/arduino-common/include/arduino_board.h

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+/*
+ * Copyright (C) 2016 Freie Universität Berlin
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser
+ * General Public License v2.1. See the file LICENSE in the top level
+ * directory for more details.
+ */
+
+/**
+ * @ingroup     boards_arduino-common
+ * @{
+ *
+ * @file
+ * @brief       Board specific configuration for the Arduino API
+ *
+ * @author      Hauke Petersen  <hauke.petersen@fu-berlin.de>
+ * @author      Laurent Navet   <laurent.navet@gmail.com>
+ */
+
+#ifndef ARDUINO_BOARD_H
+#define ARDUINO_BOARD_H
+
+#include "arduino_pinmap.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @brief   The on-board LED is connected to pin 13 on this board
+ */
+#define ARDUINO_LED         (13)
+
+/**
+ * @brief   Look-up table for the Arduino's digital pins
+ */
+static const gpio_t arduino_pinmap[] = {
+    ARDUINO_PIN_0,
+    ARDUINO_PIN_1,
+    ARDUINO_PIN_2,
+    ARDUINO_PIN_3,
+    ARDUINO_PIN_4,
+    ARDUINO_PIN_5,
+    ARDUINO_PIN_6,
+    ARDUINO_PIN_7,
+    ARDUINO_PIN_8,
+    ARDUINO_PIN_9,
+    ARDUINO_PIN_10,
+    ARDUINO_PIN_11,
+    ARDUINO_PIN_12,
+    ARDUINO_PIN_13,
+    ARDUINO_PIN_14,
+    ARDUINO_PIN_15,
+    ARDUINO_PIN_16,
+    ARDUINO_PIN_17,
+    ARDUINO_PIN_18,
+    ARDUINO_PIN_19
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* ARDUINO_BOARD_H */
+/** @} */

boards/arduino-common/include/arduino_pinmap.h

@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2015 Freie Universität Berlin
+ *               2016 Laurent Navet <laurent.navet@gmail.com>
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser
+ * General Public License v2.1. See the file LICENSE in the top level
+ * directory for more details.
+ */
+
+/**
+ * @ingroup     boards_arduino-common
+ * @{
+ *
+ * @file
+ * @brief       Mapping from MCU pins to Arduino pins
+ *
+ * You can use the defines in this file for simplified interaction with the
+ * Arduino specific pin numbers.
+ *
+ * @author      Hauke Petersen <hauke.petersen@fu-berlin.de>
+ * @author      Daniel Nordahl <nordahl.d@gmail.com>
+ * @author      Laurent Navet <laurent.navet@gmail.com>
+ */
+
+#ifndef ARDUINO_PINMAP_H
+#define ARDUINO_PINMAP_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @brief   Mapping of MCU pins to Arduino pins
+ *
+ * @note    ISCP pins are not mapped.
+ */
+
+/* Digital pins */
+#define ARDUINO_PIN_0           GPIO_PIN(PORT_D, 0)
+#define ARDUINO_PIN_1           GPIO_PIN(PORT_D, 1)
+#define ARDUINO_PIN_2           GPIO_PIN(PORT_D, 2)
+#define ARDUINO_PIN_3           GPIO_PIN(PORT_D, 3)
+#define ARDUINO_PIN_4           GPIO_PIN(PORT_D, 4)
+#define ARDUINO_PIN_5           GPIO_PIN(PORT_D, 5)
+#define ARDUINO_PIN_6           GPIO_PIN(PORT_D, 6)
+#define ARDUINO_PIN_7           GPIO_PIN(PORT_D, 7)
+#define ARDUINO_PIN_8           GPIO_PIN(PORT_B, 0)
+#define ARDUINO_PIN_9           GPIO_PIN(PORT_B, 1)
+#define ARDUINO_PIN_10          GPIO_PIN(PORT_B, 2)
+#define ARDUINO_PIN_11          GPIO_PIN(PORT_B, 3)
+#define ARDUINO_PIN_12          GPIO_PIN(PORT_B, 4)
+#define ARDUINO_PIN_13          GPIO_PIN(PORT_B, 5)
+/* Analog pins */
+#define ARDUINO_PIN_14          GPIO_PIN(PORT_C, 0)
+#define ARDUINO_PIN_15          GPIO_PIN(PORT_C, 1)
+#define ARDUINO_PIN_16          GPIO_PIN(PORT_C, 2)
+#define ARDUINO_PIN_17          GPIO_PIN(PORT_C, 3)
+#define ARDUINO_PIN_18          GPIO_PIN(PORT_C, 4)
+#define ARDUINO_PIN_19          GPIO_PIN(PORT_C, 5)
+/* Analog input */
+#define ARDUINO_PIN_A0          ARDUINO_PIN_14
+#define ARDUINO_PIN_A1          ARDUINO_PIN_15
+#define ARDUINO_PIN_A2          ARDUINO_PIN_16
+#define ARDUINO_PIN_A3          ARDUINO_PIN_17
+#define ARDUINO_PIN_A4          ARDUINO_PIN_18
+#define ARDUINO_PIN_A5          ARDUINO_PIN_19
+/** @ */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* ARDUINO_PINMAP_H */
+/** @} */

boards/arduino-common/include/board.h

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+/*
+ * Copyright (C) 2014 Freie Universität Berlin, Hinnerk van Bruinehsen
+ *               2016 Laurent Navet <laurent.navet@gmail.com>
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser
+ * General Public License v2.1. See the file LICENSE in the top level
+ * directory for more details.
+ */
+
+/**
+ * @defgroup    boards_arduino-common Arduino common
+ * @ingroup     boards
+ * @brief       Board specific files for the arduino Uno and
+ * @brief       Duemilanove boards.
+ * @{
+ *
+ * @file
+ * @brief       Board specific definitions for the arduino Uno and
+ * @brief       Duemilanove boards.
+ *
+ * @author      Hinnerk van Bruinehsen <h.v.bruinehsen@fu-berlin.de>
+ * @author      Laurent Navet <laurent.navet@gmail.com>
+ */
+
+#ifndef BOARD_H_
+#define BOARD_H_
+
+#include "cpu.h"
+#include "arduino_pinmap.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @brief As the CPU is too slow to handle 115200 baud, we set the default
+ *        baudrate to 9600 for this board
+ * @{
+ */
+#define UART_STDIO_BAUDRATE (9600U)
+/** @} */
+
+/**
+ * @brief   LED pin definitions and handlers
+ * @{
+ */
+#define LED0_PIN            GPIO_PIN(1, 5)
+
+#define LED0_MASK           (1 << DDB5)
+
+#define LED0_ON             (PORTB |=  LED0_MASK)
+#define LED0_OFF            (PORTB &= ~LED0_MASK)
+#define LED0_TOGGLE         (PORTB ^=  LED0_MASK)
+/** @} */
+
+/**
+ ** Context swap defines
+ ** Setup to use PJ6 which is pin change interrupt 15 (PCINT15)
+ ** This emulates a software triggered interrupt
+ ***/
+#define AVR_CONTEXT_SWAP_INIT do { \
+            DDRC |= (1 << PC6); \
+            PCICR |= (1 << PCIE1); \
+            PCMSK1 |= (1 << PCINT14); \
+} while (0)
+#define AVR_CONTEXT_SWAP_INTERRUPT_VECT  PCINT1_vect
+#define AVR_CONTEXT_SWAP_TRIGGER   PORTC ^= (1 << PC6)
+
+
+/**
+ * @brief xtimer configuration values
+ * @{
+ */
+#define XTIMER_WIDTH                (16)
+#define XTIMER_SHIFT                (2)
+#define XTIMER_BACKOFF              (40)
+/** @} */
+
+/**
+ * @brief Initialize board specific hardware, including clock, LEDs and std-IO
+ */
+void board_init(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* BOARD_H_ */
+/** @} */