Adds the atmega1284p CPU and the first version of the INGA board to RIOT

boards/common/inga/Makefile

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+MODULE = boards_common_inga
+
+include $(RIOTBASE)/Makefile.base

boards/common/inga/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
+FEATURES_PROVIDED += periph_i2c
+
+#FEATURES_PROVIDED += adxl345
+
+# The board MPU family (used for grouping by the CI system)
+FEATURES_MCU_GROUP = avr8
+
+include $(RIOTCPU)/atmega1284p/Makefile.features

boards/common/inga/Makefile.include

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+## the cpu to build for
+export CPU = atmega1284p
+
+# flash tool configuration
+export OFLAGS = -j .text -j .data -O ihex
+
+# set default port depending on operating system
+PORT_LINUX ?= $(firstword $(sort $(wildcard /dev/ttyUSB*)))
+# setup serial terminal
+export BAUD ?= 19200
+include $(RIOTMAKE)/tools/serial.inc.mk

boards/common/inga/board.c

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+/*
+ * Copyright (C) 2017 Robert Hartung <hartung@ibr.cs.tu-bs.de>
+ *
+ * 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_inga_common
+ * @{
+ *
+ * @file
+ * @brief       Common implementations for the INGA boards
+ *
+ * @author      Robert Hartung <hartung@ibr.cs.tu-bs.de>
+ *
+ * @}
+ */
+
+#include "cpu.h"
+#include "board.h"
+#include "uart_stdio.h"
+#include "avr/io.h"
+
+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);
+
+/**
+ * @brief Initialize the system, initialize the button
+ */
+void board_init(void)
+{
+    /* initialize the CPU */
+    cpu_init();
+
+    /* initialize STDIO over UART */
+    uart_stdio_init();
+    stdout = &uart_stdout;
+    stdin = &uart_stdin;
+    puts("\f");
+
+    /* Disable JTAG to be able to use PCINTs on PD5, PD6, PD7 */
+    MCUCR=(1<<JTD);
+
+    /* Button */
+#ifdef BTN0_PIN
+    gpio_init(BTN0_PIN, GPIO_IN);
+#endif
+
+#ifdef LED1_PIN
+    gpio_init(LED1_PIN, GPIO_OUT);
+#endif
+#ifdef LED2_PIN
+    gpio_init(LED2_PIN, GPIO_OUT);
+#endif
+
+    irq_enable();
+}
+
+static int uart_putchar(char c, FILE *stream)
+{
+    (void) stream;
+    uart_stdio_write(&c, 1);
+    return 0;
+}
+
+static int uart_getchar(FILE *stream)
+{
+    (void) stream;
+    char c;
+    uart_stdio_read(&c, 1);
+    return (int)c;
+}

boards/common/inga/include/board_common.h

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+/*
+ * Copyright (C) 2017 Robert Hartung <hartung@ibr.cs.tu-bs.de>
+ *
+ * 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_inga_common
+ * @{
+ *
+ * @file
+ * @brief       Common board definitions for the INGA boards
+ *
+ * @author      Robert Hartung <hartung@ibr.cs.tu-bs.de>
+ *
+ * @}
+ */
+
+#ifndef INGA_COMMON_BOARD_COMMON_H_
+#define INGA_COMMON_BOARD_COMMON_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef UART_STDIO_BAUDRATE
+#define UART_STDIO_BAUDRATE               (19200)
+#endif
+
+/**
+ * Context swap defines
+ * Setup to use PA0 which is pin change interrupt 0 (PCINT0)
+ * This emulates a software triggered interrupt
+ */
+#define AVR_CONTEXT_SWAP_INIT do { \
+            DDRA |= (1 << DDA0); \
+            PCICR |= (1 << PCIE0); \
+            PCMSK0 |= (1 << PCINT0); \
+} while (0)
+#define AVR_CONTEXT_SWAP_INTERRUPT_VECT         PCINT0_vect
+#define AVR_CONTEXT_SWAP_INTERRUPT_VECT_NUM     PCINT0_vect_num
+#define AVR_CONTEXT_SWAP_TRIGGER                PORTA ^= (1 << PA0)
+
+/**
+ * @name    at86rf233 configuration
+ * @{
+ */
+#define AT86RF2XX_PARAMS_BOARD {.spi = SPI_DEV(0), \
+                                .spi_clk = SPI_CLK_5MHZ, \
+                                .cs_pin = GPIO_PIN(PORT_B, 4),\
+                                .int_pin = GPIO_PIN(PORT_D, 6),\
+                                .sleep_pin = GPIO_PIN(PORT_B, 3),\
+                                .reset_pin = GPIO_PIN(PORT_B, 1)}
+/** @} */
+
+/**
+ * @name    xtimer configuration values
+ * @{
+ */
+#define XTIMER_WIDTH                      (16)
+#define XTIMER_BACKOFF                    (40)
+#define XTIMER_DEV                        (0)
+#define XTIMER_CHAN                       (0)
+/** @} */
+
+#ifdef __cplusplus
+}
+#endif
+
+/** @} */
+#endif /*  INGA_COMMON_BOARD_COMMON_H_ */

boards/common/inga/include/periph_conf_common.h

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+/*
+ * Copyright (C) 2016 Robert Hartung <hartung@ibr.cs.tu-bs.de>
+ *
+ * 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.
+ */
+
+#ifndef INGA_COMMON_PERIPH_CONF_COMMON_H_
+#define INGA_COMMON_PERIPH_CONF_COMMON_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/**
+ * @brief   Clock configuration
+ * @{
+ */
+#define CLOCK_CORECLOCK     (8000000UL)
+/** @} */
+
+/**
+ * @brief   Timer configuration
+ *
+ * The timer driver only supports the four 16-bit timers (Timer1, Timer3,
+ * Timer4, Timer5), so those are the only onces we can use here.
+ *
+ * @{
+ */
+#define TIMER_NUMOF         (1U)
+
+#define TIMER_0             MEGA_TIMER1
+#define TIMER_0_MASK        &TIMSK1
+#define TIMER_0_FLAG        &TIFR1
+#define TIMER_0_ISRA        TIMER1_COMPA_vect
+#define TIMER_0_ISRB        TIMER1_COMPB_vect
+/** @} */
+
+/**
+ * @brief   UART configuration
+ *
+ * The UART devices have fixed pin mappings, so all we need to do, is to specify
+ * which devices we would like to use and their corresponding RX interrupts. See
+ * the reference manual for the fixed pin mapping.
+ *
+ * @{
+ */
+#define UART_NUMOF          (1U)
+
+#define UART_0              MEGA_UART0
+#define UART_0_ISR          USART0_RX_vect
+/** @} */
+
+/**
+ * The INGA has exactly 1 I2C interface
+ * @{
+ */
+#define I2C_NUMOF           (1U)
+
+#define I2C_0_EN            (1)
+#define I2C_0_SCL           GPIO_PIN(PORT_C, 0)
+#define I2C_0_SDA           GPIO_PIN(PORT_C, 1)
+/** @} */
+
+/**
+ * INGA ADXL345 configuration
+ * @{
+ */
+#define ADXL345_PARAM_ADDR  ADXL345_ADDR_53 /* (0xA6>>1) */
+#define ADXL345_PARAM_I2C   (0)
+#define ADXL345_PARAMS              { .offset = ADXL345_PARAM_OFFSET,    \
+                                      .range  = ADXL345_RANGE_2G,     \
+                                      .rate   = ADXL345_RATE_100HZ,      \
+                                      .full_res = ADXL345_PARAM_FULL_RES }
+/** @} */
+
+/**
+ * Pin Change Interrupt configuration
+ * @{
+ */
+#define AVR_USE_PCINT       (1)
+/** @} */
+
+/**
+ * INGA L3G4200D adress
+ * @{
+ */
+#define L3G4200D_PARAM_ADDR (0x69) /* 0xD2>>1 */
+/** @} */
+
+/**
+ * The INGA has exactly 1 SPI interface
+ * @{
+ */
+#define SPI_NUMOF           (1U)
+/** @} */
+
+#ifdef __cplusplus
+}
+#endif
+
+/** @} */
+#endif /*  INGA_COMMON_PERIPH_CONF_COMMON_H_ */

boards/inga_blue/Makefile

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+MODULE = board
+DIRS = $(RIOTBOARD)/common/inga
+include $(RIOTBASE)/Makefile.base

boards/inga_blue/Makefile.dep

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+ifneq (,$(filter netdev_default gnrc_netdev_default,$(USEMODULE)))
+  USEMODULE += at86rf233
+endif

boards/inga_blue/Makefile.features

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+include $(RIOTBOARD)/common/inga/Makefile.features
+FEATURES_PROVIDED += periph_rtt

boards/inga_blue/Makefile.include

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+USEMODULE += boards_common_inga
+
+export FLASHER = avrdude
+# JTAG ICE mkII
+export FFLAGS = -c jtag2isp -p m1284p -P usb -u -U flash:w:$(HEXFILE)
+
+export INCLUDES += -I$(RIOTBOARD)/common/inga/include/
+
+# setup the boards dependencies
+include $(RIOTBOARD)/$(BOARD)/Makefile.dep
+
+include $(RIOTBOARD)/common/inga/Makefile.include

boards/inga_blue/include/board.h

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+/*
+ * Copyright (C) 2016 Robert Hartung <hartung@ibr.cs.tu-bs.de>
+ *
+ * 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.
+ */
+
+#ifndef INGA_COMMON_BOARD_H_
+#define INGA_COMMON_BOARD_H_
+
+#include "cpu.h"
+#include "periph_conf.h"
+#include "periph/gpio.h"
+#include "board_common.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* the blue inga does not have any LEDs or buttons */
+
+#ifdef __cplusplus
+}
+#endif
+
+/** @} */
+#endif /*  INGA_COMMON_BOARD_H_ */

boards/inga_blue/include/periph_conf.h

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+/*
+ * Copyright (C) 2017 TU Braunschweig, IBR
+ *
+ * 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_inga_red
+ * @{
+ *
+ * @file
+ * @brief       Peripheral MCU configuration for the INGA red board
+ *
+ * @author      Robert Hartung <hartung@ibr.cs.tu-bs.de>
+ */
+
+#ifndef PERIPH_CONF_H_
+#define PERIPH_CONF_H_
+
+#include "periph_conf_common.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define RTT_NUMOF        1
+#define RTT_FREQUENCY    (32)
+#define RTT_MAX_VALUE    (0xFF)
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* PERIPH_CONF_H_ */

boards/inga_green/Makefile

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+MODULE = board
+DIRS = $(RIOTBOARD)/common/inga
+include $(RIOTBASE)/Makefile.base

boards/inga_green/Makefile.dep

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+ifneq (,$(filter netdev_default gnrc_netdev_default,$(USEMODULE)))
+  USEMODULE += at86rf231
+endif

boards/inga_green/Makefile.features

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+include $(RIOTBOARD)/common/inga/Makefile.features

boards/inga_green/Makefile.include

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+USEMODULE += boards_common_inga
+
+# inga_tool for flashing
+include $(RIOTMAKE)/tools/inga_tool.inc.mk
+
+export INCLUDES += -I$(RIOTBOARD)/common/inga/include/
+
+# setup the boards dependencies
+include $(RIOTBOARD)/$(BOARD)/Makefile.dep
+
+include $(RIOTBOARD)/common/inga/Makefile.include