boards/nucleo-f446: initial support

boards/nucleo-f446/Makefile

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

boards/nucleo-f446/Makefile.features

+# Put defined MCU peripherals here (in alphabetical order)
+FEATURES_PROVIDED += periph_cpuid
+FEATURES_PROVIDED += periph_i2c
+FEATURES_PROVIDED += periph_gpio
+FEATURES_PROVIDED += periph_spi
+FEATURES_PROVIDED += periph_timer
+FEATURES_PROVIDED += periph_uart
+
+# Various other features (if any)
+FEATURES_PROVIDED += cpp
+
+# The board MPU family (used for grouping by the CI system)
+FEATURES_MCU_GROUP = cortex_m4_3

boards/nucleo-f446/Makefile.include

+# define the cpu used by the nucleo-f446 board
+export CPU = stm32f4
+export CPU_MODEL = stm32f446re
+
+# load the common Makefile.include for Nucleo boards
+include $(RIOTBOARD)/nucleo-common/Makefile.include

boards/nucleo-f446/board.c

+/*
+ * Copyright (C) 2016 Inria
+ *
+ * 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_nucleo-f446
+ * @{
+ *
+ * @file
+ * @brief       Board specific implementations for the nucleo-f446 board
+ *
+ * @author      Alexandre Abadie <alexandre.abadie@inria.fr>
+ *
+ * @}
+ */
+
+#include "board.h"
+#include "periph/gpio.h"
+
+void board_init(void)
+{
+    /* initialize the CPU */
+    cpu_init();
+
+    /* initialize the boards LEDs */
+    gpio_init(LED0_PIN, GPIO_OUT);
+}

boards/nucleo-f446/dist/openocd.cfg

+source [find board/st_nucleo_f4.cfg]

boards/nucleo-f446/include/board.h

+/*
+ * Copyright (C) 2016 Inria
+ *
+ * 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_nucleo-f446 Nucleo-F446
+ * @ingroup     boards
+ * @brief       Board specific files for the nucleo-f446 board
+ * @{
+ *
+ * @file
+ * @brief       Board specific definitions for the nucleo-f446 board
+ *
+ * @author      Alexandre Abadie <alexandre.abadie@inria.fr>
+ */
+
+#ifndef BOARD_H_
+#define BOARD_H_
+
+#include "board_common.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @name xtimer configuration
+ * @{
+ */
+#define XTIMER_DEV          TIMER_0
+#define XTIMER_CHAN         (0)
+#define XTIMER_OVERHEAD     (6)
+#define XTIMER_BACKOFF      (5)
+/** @} */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* BOARD_H_ */
+/** @} */

boards/nucleo-f446/include/periph_conf.h

+/*
+ * Copyright (C) 2016 Inria
+ *
+ * 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_nucleo-f446
+ * @{
+ *
+ * @file
+ * @name        Peripheral MCU configuration for the nucleo-f446 board
+ *
+ * @author      Alexandre Abadie <alexandre.abadie@inria.fr>
+ */
+
+#ifndef PERIPH_CONF_H_
+#define PERIPH_CONF_H_
+
+#include "periph_cpu.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @name Clock system configuration
+ * @{
+ */
+#define CLOCK_HSE           (8000000U)          /* external oscillator */
+#define CLOCK_CORECLOCK     (180000000U)        /* desired core clock frequency */
+
+/* the actual PLL values are automatically generated */
+#define CLOCK_PLL_M         (CLOCK_HSE / 1000000)
+#define CLOCK_PLL_N         ((CLOCK_CORECLOCK / 1000000) * 2)
+#define CLOCK_PLL_P         (2U)
+#define CLOCK_PLL_Q         (CLOCK_PLL_N / 48)
+#define CLOCK_AHB_DIV       RCC_CFGR_HPRE_DIV1
+#define CLOCK_APB1_DIV      RCC_CFGR_PPRE1_DIV2
+#define CLOCK_APB2_DIV      RCC_CFGR_PPRE2_DIV1
+#define CLOCK_FLASH_LATENCY FLASH_ACR_LATENCY_5WS
+
+/* bus clocks for simplified peripheral initialization, UPDATE MANUALLY! */
+#define CLOCK_AHB           (CLOCK_CORECLOCK / 1)
+#define CLOCK_APB1          (CLOCK_CORECLOCK / 2)
+#define CLOCK_APB2          (CLOCK_CORECLOCK / 1)
+/** @} */
+
+/**
+ * @name Timer configuration
+ * @{
+ */
+#define TIMER_NUMOF         (2U)
+#define TIMER_0_EN          1
+#define TIMER_1_EN          1
+#define TIMER_IRQ_PRIO      1
+
+/* Timer 0 configuration */
+#define TIMER_0_DEV         TIM2
+#define TIMER_0_CHANNELS    4
+#define TIMER_0_FREQ        (CLOCK_CORECLOCK)
+#define TIMER_0_MAX_VALUE   (0xffffffff)
+#define TIMER_0_CLKEN()     (RCC->APB1ENR |= RCC_APB1ENR_TIM2EN)
+#define TIMER_0_ISR         isr_tim2
+#define TIMER_0_IRQ_CHAN    TIM2_IRQn
+
+/* Timer 1 configuration */
+#define TIMER_1_DEV         TIM5
+#define TIMER_1_CHANNELS    4
+#define TIMER_1_FREQ        (CLOCK_CORECLOCK)
+#define TIMER_1_MAX_VALUE   (0xffffffff)
+#define TIMER_1_CLKEN()     (RCC->APB1ENR |= RCC_APB1ENR_TIM5EN)
+#define TIMER_1_ISR         isr_tim5
+#define TIMER_1_IRQ_CHAN    TIM5_IRQn
+/** @} */
+
+/**
+ * @brief   UART configuration
+ * @{
+ */
+static const uart_conf_t uart_config[] = {
+    {
+        .dev        = USART2,
+        .rcc_mask   = RCC_APB1ENR_USART2EN,
+        .rx_pin     = GPIO_PIN(PORT_A,3),
+        .tx_pin     = GPIO_PIN(PORT_A,2),
+        .af         = GPIO_AF7,
+        .bus        = APB1,
+        .irqn       = USART2_IRQn,
+        .dma_stream = 6,
+        .dma_chan   = 4
+    }
+};
+
+/* assign ISR vector names */
+#define UART_0_ISR          isr_usart2
+#define UART_0_DMA_ISR      isr_dma1_stream6
+
+/* deduct number of defined UART interfaces */
+#define UART_NUMOF          (sizeof(uart_config) / sizeof(uart_config[0]))
+/** @} */
+
+/**
+ * @name SPI configuration
+ * @{
+ */
+#define SPI_NUMOF           (1U)
+#define SPI_0_EN            1
+#define SPI_IRQ_PRIO        1
+
+/* SPI 0 device config */
+#define SPI_0_DEV               SPI1
+#define SPI_0_CLKEN()           (RCC->APB2ENR |= RCC_APB2ENR_SPI1EN)
+#define SPI_0_CLKDIS()          (RCC->APB2ENR &= ~RCC_APB2ENR_SPI1EN)
+#define SPI_0_BUS_DIV           1   /* 1 -> SPI bus runs with half CPU clock, 0 -> quarter CPU clock */
+#define SPI_0_IRQ               SPI1_IRQn
+#define SPI_0_IRQ_HANDLER       isr_spi1
+/* SPI 0 pin configuration */
+#define SPI_0_SCK_PORT          GPIOA       /* A5 pin is shared with the green LED. */
+#define SPI_0_SCK_PIN           5
+#define SPI_0_SCK_AF            5
+#define SPI_0_SCK_PORT_CLKEN()  (RCC->AHB1ENR |= RCC_AHB1ENR_GPIOAEN)
+#define SPI_0_MISO_PORT         GPIOA
+#define SPI_0_MISO_PIN          6
+#define SPI_0_MISO_AF           5
+#define SPI_0_MISO_PORT_CLKEN() (RCC->AHB1ENR |= RCC_AHB1ENR_GPIOAEN)
+#define SPI_0_MOSI_PORT         GPIOA
+#define SPI_0_MOSI_PIN          7
+#define SPI_0_MOSI_AF           5
+#define SPI_0_MOSI_PORT_CLKEN() (RCC->AHB1ENR |= RCC_AHB1ENR_GPIOAEN)
+/** @} */
+
+
+/**
+ * @name I2C configuration
+ * @{
+ */
+#define I2C_NUMOF           (1U)
+#define I2C_0_EN            1
+#define I2C_IRQ_PRIO        1
+#define I2C_APBCLK          (42000000U)
+
+/* I2C 0 device configuration */
+#define I2C_0_DEV           I2C1
+#define I2C_0_CLKEN()       (RCC->APB1ENR |= RCC_APB1ENR_I2C1EN)
+#define I2C_0_CLKDIS()      (RCC->APB1ENR &= ~(RCC_APB1ENR_I2C1EN))
+#define I2C_0_EVT_IRQ       I2C1_EV_IRQn
+#define I2C_0_EVT_ISR       isr_i2c1_ev
+#define I2C_0_ERR_IRQ       I2C1_ER_IRQn
+#define I2C_0_ERR_ISR       isr_i2c1_er
+/* I2C 0 pin configuration */
+#define I2C_0_SCL_PORT      GPIOB
+#define I2C_0_SCL_PIN       8
+#define I2C_0_SCL_AF        4
+#define I2C_0_SCL_CLKEN()   (RCC->AHB1ENR |= RCC_AHB1ENR_GPIOBEN)
+#define I2C_0_SDA_PORT      GPIOB
+#define I2C_0_SDA_PIN       9
+#define I2C_0_SDA_AF        4
+#define I2C_0_SDA_CLKEN()   (RCC->AHB1ENR |= RCC_AHB1ENR_GPIOBEN)
+/** @} */
+
+/**
+ * @brief   ADC configuration
+ * @{
+ */
+#define ADC_NUMOF          (0)
+/** @} */
+
+/**
+ * @brief   DAC configuration
+ * @{
+ */
+#define DAC_NUMOF           (0)
+/** @} */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* PERIPH_CONF_H_ */
+/** @} */