You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@mynewt.apache.org by ut...@apache.org on 2018/07/11 22:47:35 UTC
[mynewt-core] 03/04: Add Nucleo-L476RG BSP
This is an automated email from the ASF dual-hosted git repository.
utzig pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/mynewt-core.git
commit 8244b9b9def97365a2f7d71995d0e8aa51c4aa5b
Author: Fabio Utzig <ut...@apache.org>
AuthorDate: Tue Jul 10 20:17:41 2018 -0300
Add Nucleo-L476RG BSP
---
hw/bsp/nucleo-l476rg/boot-nucleo-l476rg.ld | 28 ++
hw/bsp/nucleo-l476rg/bsp.yml | 63 +++
hw/bsp/nucleo-l476rg/include/bsp/bsp.h | 51 ++
.../nucleo-l476rg/include/bsp/stm32l4xx_hal_conf.h | 388 +++++++++++++++
hw/bsp/nucleo-l476rg/nucleo-l476rg.ld | 28 ++
hw/bsp/nucleo-l476rg/nucleo-l476rg_debug.cmd | 22 +
hw/bsp/nucleo-l476rg/nucleo-l476rg_debug.sh | 37 ++
hw/bsp/nucleo-l476rg/nucleo-l476rg_download.cmd | 22 +
hw/bsp/nucleo-l476rg/nucleo-l476rg_download.sh | 42 ++
hw/bsp/nucleo-l476rg/pkg.yml | 43 ++
.../src/arch/cortex_m4/startup_stm32l476xx.s | 538 +++++++++++++++++++++
hw/bsp/nucleo-l476rg/src/hal_bsp.c | 177 +++++++
hw/bsp/nucleo-l476rg/src/system_stm32l4xx.c | 349 +++++++++++++
hw/bsp/nucleo-l476rg/syscfg.yml | 41 ++
14 files changed, 1829 insertions(+)
diff --git a/hw/bsp/nucleo-l476rg/boot-nucleo-l476rg.ld b/hw/bsp/nucleo-l476rg/boot-nucleo-l476rg.ld
new file mode 100644
index 0000000..8e59d8a
--- /dev/null
+++ b/hw/bsp/nucleo-l476rg/boot-nucleo-l476rg.ld
@@ -0,0 +1,28 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+/* Linker script to configure memory regions. */
+MEMORY
+{
+ FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 16K
+ RAM (rwx) : ORIGIN = 0x20000000, LENGTH = 96K
+}
+
+/* The bootloader does not contain an image header */
+_imghdr_size = 0x0;
diff --git a/hw/bsp/nucleo-l476rg/bsp.yml b/hw/bsp/nucleo-l476rg/bsp.yml
new file mode 100644
index 0000000..bee0c46
--- /dev/null
+++ b/hw/bsp/nucleo-l476rg/bsp.yml
@@ -0,0 +1,63 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements. See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership. The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied. See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
+bsp.arch: cortex_m4
+bsp.compiler: compiler/arm-none-eabi-m4
+bsp.linkerscript:
+ - "hw/bsp/nucleo-l476rg/nucleo-l476rg.ld"
+ - "hw/mcu/stm/stm32l4xx/stm32l476.ld"
+bsp.linkerscript.BOOT_LOADER.OVERWRITE:
+ - "hw/bsp/nucleo-l476rg/boot-nucleo-l476rg.ld"
+ - "hw/mcu/stm/stm32l4xx/stm32l476.ld"
+bsp.downloadscript: "hw/bsp/nucleo-l476rg/nucleo-l476rg_download.sh"
+bsp.debugscript: "hw/bsp/nucleo-l476rg/nucleo-l476rg_debug.sh"
+bsp.downloadscript.WINDOWS.OVERWRITE: "hw/bsp/nucleo-l476rg/nucleo-l476rg_download.cmd"
+bsp.debugscript.WINDOWS.OVERWRITE: "hw/bsp/nucleo-l476rg/nucleo-l476rg_debug.cmd"
+
+bsp.flash_map:
+ areas:
+ # System areas.
+ FLASH_AREA_BOOTLOADER:
+ device: 0
+ offset: 0x08000000
+ size: 16kB
+ FLASH_AREA_IMAGE_0:
+ device: 0
+ offset: 0x08010000
+ size: 464kB
+ FLASH_AREA_IMAGE_1:
+ device: 0
+ offset: 0x08084000
+ size: 464kB
+ FLASH_AREA_IMAGE_SCRATCH:
+ device: 0
+ offset: 0x080f8000
+ size: 32kB
+
+ # User areas.
+ FLASH_AREA_REBOOT_LOG:
+ user_id: 0
+ device: 0
+ offset: 0x08004000
+ size: 32kB
+ FLASH_AREA_NFFS:
+ user_id: 1
+ device: 0
+ offset: 0x0800c000
+ size: 16kB
diff --git a/hw/bsp/nucleo-l476rg/include/bsp/bsp.h b/hw/bsp/nucleo-l476rg/include/bsp/bsp.h
new file mode 100644
index 0000000..93b3ba0
--- /dev/null
+++ b/hw/bsp/nucleo-l476rg/include/bsp/bsp.h
@@ -0,0 +1,51 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+#ifndef H_BSP_H
+#define H_BSP_H
+
+#include <inttypes.h>
+#include <mcu/mcu.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Define special stack sections */
+#define sec_data_core __attribute__((section(".data.core")))
+#define sec_bss_core __attribute__((section(".bss.core")))
+#define sec_bss_nz_core __attribute__((section(".bss.core.nz")))
+
+/* More convenient section placement macros. */
+#define bssnz_t sec_bss_nz_core
+
+extern uint8_t _ram_start;
+
+#define RAM_SIZE (96 * 1024)
+
+/* LED pins */
+#define LED_BLINK_PIN MCU_GPIO_PORTA(5)
+
+/* UART */
+#define UART_CNT 1
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* H_BSP_H */
diff --git a/hw/bsp/nucleo-l476rg/include/bsp/stm32l4xx_hal_conf.h b/hw/bsp/nucleo-l476rg/include/bsp/stm32l4xx_hal_conf.h
new file mode 100644
index 0000000..c713494
--- /dev/null
+++ b/hw/bsp/nucleo-l476rg/include/bsp/stm32l4xx_hal_conf.h
@@ -0,0 +1,388 @@
+/**
+ ******************************************************************************
+ * @file stm32l4xx_hal_conf.h
+ * @author MCD Application Team
+ * @brief HAL configuration template file.
+ * This file should be copied to the application folder and renamed
+ * to stm32l4xx_hal_conf.h.
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>© COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. Neither the name of STMicroelectronics nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ ******************************************************************************
+ */
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __STM32L4xx_HAL_CONF_H
+#define __STM32L4xx_HAL_CONF_H
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+/* Exported types ------------------------------------------------------------*/
+/* Exported constants --------------------------------------------------------*/
+
+/* ########################## Module Selection ############################## */
+/**
+ * @brief This is the list of modules to be used in the HAL driver
+ */
+#if 0
+#define HAL_ADC_MODULE_ENABLED
+#define HAL_CAN_MODULE_ENABLED
+/* #define HAL_CAN_LEGACY_MODULE_ENABLED */
+#define HAL_COMP_MODULE_ENABLED
+#define HAL_CORTEX_MODULE_ENABLED
+#define HAL_CRC_MODULE_ENABLED
+#define HAL_CRYP_MODULE_ENABLED
+#define HAL_DAC_MODULE_ENABLED
+#define HAL_DFSDM_MODULE_ENABLED
+#define HAL_FIREWALL_MODULE_ENABLED
+#define HAL_HCD_MODULE_ENABLED
+#define HAL_NAND_MODULE_ENABLED
+#define HAL_NOR_MODULE_ENABLED
+#define HAL_SRAM_MODULE_ENABLED
+#define HAL_IRDA_MODULE_ENABLED
+#define HAL_LCD_MODULE_ENABLED
+#define HAL_LPTIM_MODULE_ENABLED
+#define HAL_OPAMP_MODULE_ENABLED
+#define HAL_PCD_MODULE_ENABLED
+#define HAL_QSPI_MODULE_ENABLED
+#define HAL_RCC_MODULE_ENABLED
+#define HAL_RNG_MODULE_ENABLED
+#define HAL_RTC_MODULE_ENABLED
+#define HAL_SAI_MODULE_ENABLED
+#define HAL_SD_MODULE_ENABLED
+#define HAL_SMARTCARD_MODULE_ENABLED
+#define HAL_SMBUS_MODULE_ENABLED
+#define HAL_SWPMI_MODULE_ENABLED
+#define HAL_TSC_MODULE_ENABLED
+#define HAL_UART_MODULE_ENABLED
+#define HAL_USART_MODULE_ENABLED
+#define HAL_WWDG_MODULE_ENABLED
+#endif
+
+#define HAL_MODULE_ENABLED
+#define HAL_CORTEX_MODULE_ENABLED
+#define HAL_GPIO_MODULE_ENABLED
+#define HAL_RCC_MODULE_ENABLED
+#define HAL_PWR_MODULE_ENABLED
+#define HAL_FLASH_MODULE_ENABLED
+#define HAL_IWDG_MODULE_ENABLED
+#define HAL_DMA_MODULE_ENABLED
+#define HAL_I2C_MODULE_ENABLED
+#define HAL_SPI_MODULE_ENABLED
+#define HAL_TIM_MODULE_ENABLED
+
+/* ########################## Oscillator Values adaptation ####################*/
+/**
+ * @brief Adjust the value of External High Speed oscillator (HSE) used in your application.
+ * This value is used by the RCC HAL module to compute the system frequency
+ * (when HSE is used as system clock source, directly or through the PLL).
+ */
+#if !defined (HSE_VALUE)
+ #define HSE_VALUE 8000000U /*!< Value of the External oscillator in Hz */
+#endif /* HSE_VALUE */
+
+#if !defined (HSE_STARTUP_TIMEOUT)
+ #define HSE_STARTUP_TIMEOUT 100U /*!< Time out for HSE start up, in ms */
+#endif /* HSE_STARTUP_TIMEOUT */
+
+/**
+ * @brief Internal Multiple Speed oscillator (MSI) default value.
+ * This value is the default MSI range value after Reset.
+ */
+#if !defined (MSI_VALUE)
+ #define MSI_VALUE 4000000U /*!< Value of the Internal oscillator in Hz*/
+#endif /* MSI_VALUE */
+
+/**
+ * @brief Internal High Speed oscillator (HSI) value.
+ * This value is used by the RCC HAL module to compute the system frequency
+ * (when HSI is used as system clock source, directly or through the PLL).
+ */
+#if !defined (HSI_VALUE)
+ #define HSI_VALUE 16000000U /*!< Value of the Internal oscillator in Hz*/
+#endif /* HSI_VALUE */
+
+/**
+ * @brief Internal Low Speed oscillator (LSI) value.
+ */
+#if !defined (LSI_VALUE)
+ #define LSI_VALUE 32000U /*!< LSI Typical Value in Hz*/
+#endif /* LSI_VALUE */ /*!< Value of the Internal Low Speed oscillator in Hz
+ The real value may vary depending on the variations
+ in voltage and temperature.*/
+/**
+ * @brief External Low Speed oscillator (LSE) value.
+ * This value is used by the UART, RTC HAL module to compute the system frequency
+ */
+#if !defined (LSE_VALUE)
+ #define LSE_VALUE 32768U /*!< Value of the External oscillator in Hz*/
+#endif /* LSE_VALUE */
+
+#if !defined (LSE_STARTUP_TIMEOUT)
+ #define LSE_STARTUP_TIMEOUT 5000U /*!< Time out for LSE start up, in ms */
+#endif /* HSE_STARTUP_TIMEOUT */
+
+/**
+ * @brief External clock source for SAI1 peripheral
+ * This value is used by the RCC HAL module to compute the SAI1 & SAI2 clock source
+ * frequency.
+ */
+#if !defined (EXTERNAL_SAI1_CLOCK_VALUE)
+ #define EXTERNAL_SAI1_CLOCK_VALUE 48000U /*!< Value of the SAI1 External clock source in Hz*/
+#endif /* EXTERNAL_SAI1_CLOCK_VALUE */
+
+/**
+ * @brief External clock source for SAI2 peripheral
+ * This value is used by the RCC HAL module to compute the SAI1 & SAI2 clock source
+ * frequency.
+ */
+#if !defined (EXTERNAL_SAI2_CLOCK_VALUE)
+ #define EXTERNAL_SAI2_CLOCK_VALUE 48000U /*!< Value of the SAI2 External clock source in Hz*/
+#endif /* EXTERNAL_SAI2_CLOCK_VALUE */
+
+/* Tip: To avoid modifying this file each time you need to use different HSE,
+ === you can define the HSE value in your toolchain compiler preprocessor. */
+
+/* ########################### System Configuration ######################### */
+/**
+ * @brief This is the HAL system configuration section
+ */
+#define VDD_VALUE 3300U /*!< Value of VDD in mv */
+#define TICK_INT_PRIORITY 0x0FU /*!< tick interrupt priority */
+#define USE_RTOS 0U
+#define PREFETCH_ENABLE 0U
+#define INSTRUCTION_CACHE_ENABLE 1U
+#define DATA_CACHE_ENABLE 1U
+
+/* ########################## Assert Selection ############################## */
+/**
+ * @brief Uncomment the line below to expanse the "assert_param" macro in the
+ * HAL drivers code
+ */
+/* #define USE_FULL_ASSERT 1U */
+
+/* ################## SPI peripheral configuration ########################## */
+
+/* CRC FEATURE: Use to activate CRC feature inside HAL SPI Driver
+ * Activated: CRC code is present inside driver
+ * Deactivated: CRC code cleaned from driver
+ */
+
+#define USE_SPI_CRC 1U
+
+/* Includes ------------------------------------------------------------------*/
+/**
+ * @brief Include module's header file
+ */
+
+#ifdef HAL_RCC_MODULE_ENABLED
+ #include "stm32l4xx_hal_rcc.h"
+#endif /* HAL_RCC_MODULE_ENABLED */
+
+#ifdef HAL_GPIO_MODULE_ENABLED
+ #include "stm32l4xx_hal_gpio.h"
+#endif /* HAL_GPIO_MODULE_ENABLED */
+
+#ifdef HAL_DMA_MODULE_ENABLED
+ #include "stm32l4xx_hal_dma.h"
+#endif /* HAL_DMA_MODULE_ENABLED */
+
+#ifdef HAL_DFSDM_MODULE_ENABLED
+ #include "stm32l4xx_hal_dfsdm.h"
+#endif /* HAL_DFSDM_MODULE_ENABLED */
+
+#ifdef HAL_CORTEX_MODULE_ENABLED
+ #include "stm32l4xx_hal_cortex.h"
+#endif /* HAL_CORTEX_MODULE_ENABLED */
+
+#ifdef HAL_ADC_MODULE_ENABLED
+ #include "stm32l4xx_hal_adc.h"
+#endif /* HAL_ADC_MODULE_ENABLED */
+
+#ifdef HAL_CAN_MODULE_ENABLED
+ #include "stm32l4xx_hal_can.h"
+#endif /* HAL_CAN_MODULE_ENABLED */
+
+#ifdef HAL_CAN_LEGACY_MODULE_ENABLED
+ #include "Legacy/stm32l4xx_hal_can_legacy.h"
+#endif /* HAL_CAN_LEGACY_MODULE_ENABLED */
+
+#ifdef HAL_COMP_MODULE_ENABLED
+ #include "stm32l4xx_hal_comp.h"
+#endif /* HAL_COMP_MODULE_ENABLED */
+
+#ifdef HAL_CRC_MODULE_ENABLED
+ #include "stm32l4xx_hal_crc.h"
+#endif /* HAL_CRC_MODULE_ENABLED */
+
+#ifdef HAL_CRYP_MODULE_ENABLED
+ #include "stm32l4xx_hal_cryp.h"
+#endif /* HAL_CRYP_MODULE_ENABLED */
+
+#ifdef HAL_DAC_MODULE_ENABLED
+ #include "stm32l4xx_hal_dac.h"
+#endif /* HAL_DAC_MODULE_ENABLED */
+
+#ifdef HAL_FIREWALL_MODULE_ENABLED
+ #include "stm32l4xx_hal_firewall.h"
+#endif /* HAL_FIREWALL_MODULE_ENABLED */
+
+#ifdef HAL_FLASH_MODULE_ENABLED
+ #include "stm32l4xx_hal_flash.h"
+#endif /* HAL_FLASH_MODULE_ENABLED */
+
+#ifdef HAL_SRAM_MODULE_ENABLED
+ #include "stm32l4xx_hal_sram.h"
+#endif /* HAL_SRAM_MODULE_ENABLED */
+
+#ifdef HAL_NOR_MODULE_ENABLED
+ #include "stm32l4xx_hal_nor.h"
+#endif /* HAL_NOR_MODULE_ENABLED */
+
+#ifdef HAL_NAND_MODULE_ENABLED
+ #include "stm32l4xx_hal_nand.h"
+#endif /* HAL_NAND_MODULE_ENABLED */
+
+#ifdef HAL_I2C_MODULE_ENABLED
+ #include "stm32l4xx_hal_i2c.h"
+#endif /* HAL_I2C_MODULE_ENABLED */
+
+#ifdef HAL_IWDG_MODULE_ENABLED
+ #include "stm32l4xx_hal_iwdg.h"
+#endif /* HAL_IWDG_MODULE_ENABLED */
+
+#ifdef HAL_LCD_MODULE_ENABLED
+ #include "stm32l4xx_hal_lcd.h"
+#endif /* HAL_LCD_MODULE_ENABLED */
+
+#ifdef HAL_LPTIM_MODULE_ENABLED
+#include "stm32l4xx_hal_lptim.h"
+#endif /* HAL_LPTIM_MODULE_ENABLED */
+
+#ifdef HAL_OPAMP_MODULE_ENABLED
+#include "stm32l4xx_hal_opamp.h"
+#endif /* HAL_OPAMP_MODULE_ENABLED */
+
+#ifdef HAL_PWR_MODULE_ENABLED
+ #include "stm32l4xx_hal_pwr.h"
+#endif /* HAL_PWR_MODULE_ENABLED */
+
+#ifdef HAL_QSPI_MODULE_ENABLED
+ #include "stm32l4xx_hal_qspi.h"
+#endif /* HAL_QSPI_MODULE_ENABLED */
+
+#ifdef HAL_RNG_MODULE_ENABLED
+ #include "stm32l4xx_hal_rng.h"
+#endif /* HAL_RNG_MODULE_ENABLED */
+
+#ifdef HAL_RTC_MODULE_ENABLED
+ #include "stm32l4xx_hal_rtc.h"
+#endif /* HAL_RTC_MODULE_ENABLED */
+
+#ifdef HAL_SAI_MODULE_ENABLED
+ #include "stm32l4xx_hal_sai.h"
+#endif /* HAL_SAI_MODULE_ENABLED */
+
+#ifdef HAL_SD_MODULE_ENABLED
+ #include "stm32l4xx_hal_sd.h"
+#endif /* HAL_SD_MODULE_ENABLED */
+
+#ifdef HAL_SMBUS_MODULE_ENABLED
+ #include "stm32l4xx_hal_smbus.h"
+#endif /* HAL_SMBUS_MODULE_ENABLED */
+
+#ifdef HAL_SPI_MODULE_ENABLED
+ #include "stm32l4xx_hal_spi.h"
+#endif /* HAL_SPI_MODULE_ENABLED */
+
+#ifdef HAL_SWPMI_MODULE_ENABLED
+ #include "stm32l4xx_hal_swpmi.h"
+#endif /* HAL_SWPMI_MODULE_ENABLED */
+
+#ifdef HAL_TIM_MODULE_ENABLED
+ #include "stm32l4xx_hal_tim.h"
+#endif /* HAL_TIM_MODULE_ENABLED */
+
+#ifdef HAL_TSC_MODULE_ENABLED
+ #include "stm32l4xx_hal_tsc.h"
+#endif /* HAL_TSC_MODULE_ENABLED */
+
+#ifdef HAL_UART_MODULE_ENABLED
+ #include "stm32l4xx_hal_uart.h"
+#endif /* HAL_UART_MODULE_ENABLED */
+
+#ifdef HAL_USART_MODULE_ENABLED
+ #include "stm32l4xx_hal_usart.h"
+#endif /* HAL_USART_MODULE_ENABLED */
+
+#ifdef HAL_IRDA_MODULE_ENABLED
+ #include "stm32l4xx_hal_irda.h"
+#endif /* HAL_IRDA_MODULE_ENABLED */
+
+#ifdef HAL_SMARTCARD_MODULE_ENABLED
+ #include "stm32l4xx_hal_smartcard.h"
+#endif /* HAL_SMARTCARD_MODULE_ENABLED */
+
+#ifdef HAL_WWDG_MODULE_ENABLED
+ #include "stm32l4xx_hal_wwdg.h"
+#endif /* HAL_WWDG_MODULE_ENABLED */
+
+#ifdef HAL_PCD_MODULE_ENABLED
+ #include "stm32l4xx_hal_pcd.h"
+#endif /* HAL_PCD_MODULE_ENABLED */
+
+#ifdef HAL_HCD_MODULE_ENABLED
+ #include "stm32l4xx_hal_hcd.h"
+#endif /* HAL_HCD_MODULE_ENABLED */
+
+/* Exported macro ------------------------------------------------------------*/
+#ifdef USE_FULL_ASSERT
+/**
+ * @brief The assert_param macro is used for function's parameters check.
+ * @param expr: If expr is false, it calls assert_failed function
+ * which reports the name of the source file and the source
+ * line number of the call that failed.
+ * If expr is true, it returns no value.
+ * @retval None
+ */
+ #define assert_param(expr) ((expr) ? (void)0U : assert_failed((char *)__FILE__, __LINE__))
+/* Exported functions ------------------------------------------------------- */
+ void assert_failed(char *file, uint32_t line);
+#else
+ #define assert_param(expr) ((void)0U)
+#endif /* USE_FULL_ASSERT */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __STM32L4xx_HAL_CONF_H */
+
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
diff --git a/hw/bsp/nucleo-l476rg/nucleo-l476rg.ld b/hw/bsp/nucleo-l476rg/nucleo-l476rg.ld
new file mode 100644
index 0000000..512d498
--- /dev/null
+++ b/hw/bsp/nucleo-l476rg/nucleo-l476rg.ld
@@ -0,0 +1,28 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+/* Linker script to configure memory regions. */
+MEMORY
+{
+ FLASH (rx) : ORIGIN = 0x08010000, LENGTH = 464K /* First image slot. */
+ RAM (rwx) : ORIGIN = 0x20000000, LENGTH = 96K
+}
+
+/* This linker script is used for images and thus contains an image header */
+_imghdr_size = 0x20;
diff --git a/hw/bsp/nucleo-l476rg/nucleo-l476rg_debug.cmd b/hw/bsp/nucleo-l476rg/nucleo-l476rg_debug.cmd
new file mode 100755
index 0000000..96f0b26
--- /dev/null
+++ b/hw/bsp/nucleo-l476rg/nucleo-l476rg_debug.cmd
@@ -0,0 +1,22 @@
+@rem
+@rem Licensed to the Apache Software Foundation (ASF) under one
+@rem or more contributor license agreements. See the NOTICE file
+@rem distributed with this work for additional information
+@rem regarding copyright ownership. The ASF licenses this file
+@rem to you under the Apache License, Version 2.0 (the
+@rem "License"); you may not use this file except in compliance
+@rem with the License. You may obtain a copy of the License at
+@rem
+@rem http://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing,
+@rem software distributed under the License is distributed on an
+@rem "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+@rem KIND, either express or implied. See the License for the
+@rem specific language governing permissions and limitations
+@rem under the License.
+@rem
+
+@rem Execute a shell with a script of the same name and .sh extension
+
+@bash "%~dp0%~n0.sh"
diff --git a/hw/bsp/nucleo-l476rg/nucleo-l476rg_debug.sh b/hw/bsp/nucleo-l476rg/nucleo-l476rg_debug.sh
new file mode 100755
index 0000000..f514523
--- /dev/null
+++ b/hw/bsp/nucleo-l476rg/nucleo-l476rg_debug.sh
@@ -0,0 +1,37 @@
+#!/bin/sh
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements. See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership. The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied. See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
+# Called with following variables set:
+# - CORE_PATH is absolute path to @apache-mynewt-core
+# - BSP_PATH is absolute path to hw/bsp/bsp_name
+# - BIN_BASENAME is the path to prefix to target binary,
+# .elf appended to name is the ELF file
+# - FEATURES holds the target features string
+# - EXTRA_JTAG_CMD holds extra parameters to pass to jtag software
+# - RESET set if target should be reset when attaching
+# - NO_GDB set if we should not start gdb to debug
+#
+. $CORE_PATH/hw/scripts/openocd.sh
+
+FILE_NAME=$BIN_BASENAME.elf
+CFG="-f board/st_nucleo_l4.cfg"
+# Exit openocd when gdb detaches.
+EXTRA_JTAG_CMD="$EXTRA_JTAG_CMD; stm32l4x.cpu configure -event gdb-detach {if {[stm32l4x.cpu curstate] eq \"halted\"} resume;shutdown}"
+
+openocd_debug
diff --git a/hw/bsp/nucleo-l476rg/nucleo-l476rg_download.cmd b/hw/bsp/nucleo-l476rg/nucleo-l476rg_download.cmd
new file mode 100755
index 0000000..96f0b26
--- /dev/null
+++ b/hw/bsp/nucleo-l476rg/nucleo-l476rg_download.cmd
@@ -0,0 +1,22 @@
+@rem
+@rem Licensed to the Apache Software Foundation (ASF) under one
+@rem or more contributor license agreements. See the NOTICE file
+@rem distributed with this work for additional information
+@rem regarding copyright ownership. The ASF licenses this file
+@rem to you under the Apache License, Version 2.0 (the
+@rem "License"); you may not use this file except in compliance
+@rem with the License. You may obtain a copy of the License at
+@rem
+@rem http://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing,
+@rem software distributed under the License is distributed on an
+@rem "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+@rem KIND, either express or implied. See the License for the
+@rem specific language governing permissions and limitations
+@rem under the License.
+@rem
+
+@rem Execute a shell with a script of the same name and .sh extension
+
+@bash "%~dp0%~n0.sh"
diff --git a/hw/bsp/nucleo-l476rg/nucleo-l476rg_download.sh b/hw/bsp/nucleo-l476rg/nucleo-l476rg_download.sh
new file mode 100755
index 0000000..820c90b
--- /dev/null
+++ b/hw/bsp/nucleo-l476rg/nucleo-l476rg_download.sh
@@ -0,0 +1,42 @@
+#!/bin/sh
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements. See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership. The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied. See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
+# Called with following variables set:
+# - CORE_PATH is absolute path to @apache-mynewt-core
+# - BSP_PATH is absolute path to hw/bsp/bsp_name
+# - BIN_BASENAME is the path to prefix to target binary,
+# .elf appended to name is the ELF file
+# - IMAGE_SLOT is the image slot to download to (for non-mfg-image, non-boot)
+# - FEATURES holds the target features string
+# - EXTRA_JTAG_CMD holds extra parameters to pass to jtag software
+# - MFG_IMAGE is "1" if this is a manufacturing image
+# - FLASH_OFFSET contains the flash offset to download to
+# - BOOT_LOADER is set if downloading a bootloader
+
+. $CORE_PATH/hw/scripts/openocd.sh
+
+CFG="-f board/st_nucleo_l4.cfg"
+
+if [ "$MFG_IMAGE" ]; then
+ FLASH_OFFSET=0x08000000
+fi
+
+common_file_to_load
+openocd_load
+openocd_reset_run
diff --git a/hw/bsp/nucleo-l476rg/pkg.yml b/hw/bsp/nucleo-l476rg/pkg.yml
new file mode 100644
index 0000000..2d40f55
--- /dev/null
+++ b/hw/bsp/nucleo-l476rg/pkg.yml
@@ -0,0 +1,43 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements. See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership. The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied. See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
+pkg.name: hw/bsp/nucleo-l476rg
+pkg.type: bsp
+pkg.description: BSP definition for the Nucleo stm32l476rg board
+pkg.author: "Apache Mynewt <de...@mynewt.apache.org>"
+pkg.homepage: "http://mynewt.apache.org/"
+pkg.keywords:
+ - stm32
+ - stm32l4
+ - nucleo
+
+pkg.cflags:
+ - -DSTM32L476xx
+
+pkg.cflags.HARDFLOAT:
+ - -mfloat-abi=hard -mfpu=fpv4-sp-d16
+
+pkg.deps:
+ - hw/mcu/stm/stm32l4xx
+ - libc/baselibc
+
+pkg.deps.UART_0:
+ - hw/drivers/uart/uart_hal
+pkg.deps.UART_1:
+ - hw/drivers/uart/uart_hal
diff --git a/hw/bsp/nucleo-l476rg/src/arch/cortex_m4/startup_stm32l476xx.s b/hw/bsp/nucleo-l476rg/src/arch/cortex_m4/startup_stm32l476xx.s
new file mode 100644
index 0000000..f37f643
--- /dev/null
+++ b/hw/bsp/nucleo-l476rg/src/arch/cortex_m4/startup_stm32l476xx.s
@@ -0,0 +1,538 @@
+/**
+ ******************************************************************************
+ * @file startup_stm32l476xx.s
+ * @author MCD Application Team
+ * @brief STM32L476xx devices vector table GCC toolchain.
+ * This module performs:
+ * - Set the initial SP
+ * - Set the initial PC == Reset_Handler,
+ * - Set the vector table entries with the exceptions ISR address,
+ * - Configure the clock system
+ * - Branches to main in the C library (which eventually
+ * calls main()).
+ * After Reset the Cortex-M4 processor is in Thread mode,
+ * priority is Privileged, and the Stack is set to Main.
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>© COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. Neither the name of STMicroelectronics nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ ******************************************************************************
+ */
+
+ .syntax unified
+ .cpu cortex-m4
+ .fpu softvfp
+ .thumb
+
+.global g_pfnVectors
+.global Default_Handler
+
+/* start address for the initialization values of the .data section.
+defined in linker script */
+.word _sidata
+/* start address for the .data section. defined in linker script */
+.word _sdata
+/* end address for the .data section. defined in linker script */
+.word _edata
+/* start address for the .bss section. defined in linker script */
+.word _sbss
+/* end address for the .bss section. defined in linker script */
+.word _ebss
+
+.equ BootRAM, 0xF1E0F85F
+/**
+ * @brief This is the code that gets called when the processor first
+ * starts execution following a reset event. Only the absolutely
+ * necessary set is performed, after which the application
+ * supplied main() routine is called.
+ * @param None
+ * @retval : None
+*/
+
+ .section .text.Reset_Handler
+ .weak Reset_Handler
+ .type Reset_Handler, %function
+Reset_Handler:
+ ldr sp, =_estack /* Atollic update: set stack pointer */
+
+/* Copy the data segment initializers from flash to SRAM */
+ movs r1, #0
+ b LoopCopyDataInit
+
+CopyDataInit:
+ ldr r3, =_sidata
+ ldr r3, [r3, r1]
+ str r3, [r0, r1]
+ adds r1, r1, #4
+
+LoopCopyDataInit:
+ ldr r0, =_sdata
+ ldr r3, =_edata
+ adds r2, r0, r1
+ cmp r2, r3
+ bcc CopyDataInit
+
+ ldr r2, =_sbss
+ b LoopFillZerobss
+
+/* Zero fill the bss segment. */
+FillZerobss:
+ movs r3, #0
+ str r3, [r2], #4
+
+LoopFillZerobss:
+ ldr r3, = _ebss
+ cmp r2, r3
+ bcc FillZerobss
+
+/*
+ * mynewt specific corebss clearing.
+ */
+ ldr r2, =__corebss_start__
+ b LoopFillZeroCoreBss
+
+/* Zero fill the bss segment. */
+FillZeroCoreBss:
+ movs r3, #0
+ str r3, [r2], #4
+
+LoopFillZeroCoreBss:
+ ldr r3, =__corebss_end__
+ cmp r2, r3
+ bcc FillZeroCoreBss
+
+/* Call the clock system initialization function.*/
+ bl SystemInit
+/* Call the libc entry point.*/
+ bl _start
+.size Reset_Handler, .-Reset_Handler
+
+/**
+ * @brief This is the code that gets called when the processor receives an
+ * unexpected interrupt. This simply enters an infinite loop, preserving
+ * the system state for examination by a debugger.
+ *
+ * @param None
+ * @retval : None
+*/
+ .section .text.Default_Handler,"ax",%progbits
+Default_Handler:
+Infinite_Loop:
+ b Infinite_Loop
+ .size Default_Handler, .-Default_Handler
+/******************************************************************************
+*
+* The minimal vector table for a Cortex-M4. Note that the proper constructs
+* must be placed on this to ensure that it ends up at physical address
+* 0x0000.0000.
+*
+******************************************************************************/
+ .section .isr_vector,"a",%progbits
+ .type g_pfnVectors, %object
+ .size g_pfnVectors, .-g_pfnVectors
+
+
+g_pfnVectors:
+ .globl __isr_vector
+__isr_vector:
+ .word _estack
+ .word Reset_Handler
+ .word NMI_Handler
+ .word HardFault_Handler
+ .word MemManage_Handler
+ .word BusFault_Handler
+ .word UsageFault_Handler
+ .word 0
+ .word 0
+ .word 0
+ .word 0
+ .word SVC_Handler
+ .word DebugMon_Handler
+ .word 0
+ .word PendSV_Handler
+ .word SysTick_Handler
+ .word WWDG_IRQHandler
+ .word PVD_PVM_IRQHandler
+ .word TAMP_STAMP_IRQHandler
+ .word RTC_WKUP_IRQHandler
+ .word FLASH_IRQHandler
+ .word RCC_IRQHandler
+ .word EXTI0_IRQHandler
+ .word EXTI1_IRQHandler
+ .word EXTI2_IRQHandler
+ .word EXTI3_IRQHandler
+ .word EXTI4_IRQHandler
+ .word DMA1_Channel1_IRQHandler
+ .word DMA1_Channel2_IRQHandler
+ .word DMA1_Channel3_IRQHandler
+ .word DMA1_Channel4_IRQHandler
+ .word DMA1_Channel5_IRQHandler
+ .word DMA1_Channel6_IRQHandler
+ .word DMA1_Channel7_IRQHandler
+ .word ADC1_2_IRQHandler
+ .word CAN1_TX_IRQHandler
+ .word CAN1_RX0_IRQHandler
+ .word CAN1_RX1_IRQHandler
+ .word CAN1_SCE_IRQHandler
+ .word EXTI9_5_IRQHandler
+ .word TIM1_BRK_TIM15_IRQHandler
+ .word TIM1_UP_TIM16_IRQHandler
+ .word TIM1_TRG_COM_TIM17_IRQHandler
+ .word TIM1_CC_IRQHandler
+ .word TIM2_IRQHandler
+ .word TIM3_IRQHandler
+ .word TIM4_IRQHandler
+ .word I2C1_EV_IRQHandler
+ .word I2C1_ER_IRQHandler
+ .word I2C2_EV_IRQHandler
+ .word I2C2_ER_IRQHandler
+ .word SPI1_IRQHandler
+ .word SPI2_IRQHandler
+ .word USART1_IRQHandler
+ .word USART2_IRQHandler
+ .word USART3_IRQHandler
+ .word EXTI15_10_IRQHandler
+ .word RTC_Alarm_IRQHandler
+ .word DFSDM1_FLT3_IRQHandler
+ .word TIM8_BRK_IRQHandler
+ .word TIM8_UP_IRQHandler
+ .word TIM8_TRG_COM_IRQHandler
+ .word TIM8_CC_IRQHandler
+ .word ADC3_IRQHandler
+ .word FMC_IRQHandler
+ .word SDMMC1_IRQHandler
+ .word TIM5_IRQHandler
+ .word SPI3_IRQHandler
+ .word UART4_IRQHandler
+ .word UART5_IRQHandler
+ .word TIM6_DAC_IRQHandler
+ .word TIM7_IRQHandler
+ .word DMA2_Channel1_IRQHandler
+ .word DMA2_Channel2_IRQHandler
+ .word DMA2_Channel3_IRQHandler
+ .word DMA2_Channel4_IRQHandler
+ .word DMA2_Channel5_IRQHandler
+ .word DFSDM1_FLT0_IRQHandler
+ .word DFSDM1_FLT1_IRQHandler
+ .word DFSDM1_FLT2_IRQHandler
+ .word COMP_IRQHandler
+ .word LPTIM1_IRQHandler
+ .word LPTIM2_IRQHandler
+ .word OTG_FS_IRQHandler
+ .word DMA2_Channel6_IRQHandler
+ .word DMA2_Channel7_IRQHandler
+ .word LPUART1_IRQHandler
+ .word QUADSPI_IRQHandler
+ .word I2C3_EV_IRQHandler
+ .word I2C3_ER_IRQHandler
+ .word SAI1_IRQHandler
+ .word SAI2_IRQHandler
+ .word SWPMI1_IRQHandler
+ .word TSC_IRQHandler
+ .word LCD_IRQHandler
+ .word 0
+ .word RNG_IRQHandler
+ .word FPU_IRQHandler
+
+
+/*******************************************************************************
+*
+* Provide weak aliases for each Exception handler to the Default_Handler.
+* As they are weak aliases, any function with the same name will override
+* this definition.
+*
+*******************************************************************************/
+
+ .weak NMI_Handler
+ .thumb_set NMI_Handler,Default_Handler
+
+ .weak HardFault_Handler
+ .thumb_set HardFault_Handler,Default_Handler
+
+ .weak MemManage_Handler
+ .thumb_set MemManage_Handler,Default_Handler
+
+ .weak BusFault_Handler
+ .thumb_set BusFault_Handler,Default_Handler
+
+ .weak UsageFault_Handler
+ .thumb_set UsageFault_Handler,Default_Handler
+
+ .weak SVC_Handler
+ .thumb_set SVC_Handler,Default_Handler
+
+ .weak DebugMon_Handler
+ .thumb_set DebugMon_Handler,Default_Handler
+
+ .weak PendSV_Handler
+ .thumb_set PendSV_Handler,Default_Handler
+
+ .weak SysTick_Handler
+ .thumb_set SysTick_Handler,Default_Handler
+
+ .weak WWDG_IRQHandler
+ .thumb_set WWDG_IRQHandler,Default_Handler
+
+ .weak PVD_PVM_IRQHandler
+ .thumb_set PVD_PVM_IRQHandler,Default_Handler
+
+ .weak TAMP_STAMP_IRQHandler
+ .thumb_set TAMP_STAMP_IRQHandler,Default_Handler
+
+ .weak RTC_WKUP_IRQHandler
+ .thumb_set RTC_WKUP_IRQHandler,Default_Handler
+
+ .weak FLASH_IRQHandler
+ .thumb_set FLASH_IRQHandler,Default_Handler
+
+ .weak RCC_IRQHandler
+ .thumb_set RCC_IRQHandler,Default_Handler
+
+ .weak EXTI0_IRQHandler
+ .thumb_set EXTI0_IRQHandler,Default_Handler
+
+ .weak EXTI1_IRQHandler
+ .thumb_set EXTI1_IRQHandler,Default_Handler
+
+ .weak EXTI2_IRQHandler
+ .thumb_set EXTI2_IRQHandler,Default_Handler
+
+ .weak EXTI3_IRQHandler
+ .thumb_set EXTI3_IRQHandler,Default_Handler
+
+ .weak EXTI4_IRQHandler
+ .thumb_set EXTI4_IRQHandler,Default_Handler
+
+ .weak DMA1_Channel1_IRQHandler
+ .thumb_set DMA1_Channel1_IRQHandler,Default_Handler
+
+ .weak DMA1_Channel2_IRQHandler
+ .thumb_set DMA1_Channel2_IRQHandler,Default_Handler
+
+ .weak DMA1_Channel3_IRQHandler
+ .thumb_set DMA1_Channel3_IRQHandler,Default_Handler
+
+ .weak DMA1_Channel4_IRQHandler
+ .thumb_set DMA1_Channel4_IRQHandler,Default_Handler
+
+ .weak DMA1_Channel5_IRQHandler
+ .thumb_set DMA1_Channel5_IRQHandler,Default_Handler
+
+ .weak DMA1_Channel6_IRQHandler
+ .thumb_set DMA1_Channel6_IRQHandler,Default_Handler
+
+ .weak DMA1_Channel7_IRQHandler
+ .thumb_set DMA1_Channel7_IRQHandler,Default_Handler
+
+ .weak ADC1_2_IRQHandler
+ .thumb_set ADC1_2_IRQHandler,Default_Handler
+
+ .weak CAN1_TX_IRQHandler
+ .thumb_set CAN1_TX_IRQHandler,Default_Handler
+
+ .weak CAN1_RX0_IRQHandler
+ .thumb_set CAN1_RX0_IRQHandler,Default_Handler
+
+ .weak CAN1_RX1_IRQHandler
+ .thumb_set CAN1_RX1_IRQHandler,Default_Handler
+
+ .weak CAN1_SCE_IRQHandler
+ .thumb_set CAN1_SCE_IRQHandler,Default_Handler
+
+ .weak EXTI9_5_IRQHandler
+ .thumb_set EXTI9_5_IRQHandler,Default_Handler
+
+ .weak TIM1_BRK_TIM15_IRQHandler
+ .thumb_set TIM1_BRK_TIM15_IRQHandler,Default_Handler
+
+ .weak TIM1_UP_TIM16_IRQHandler
+ .thumb_set TIM1_UP_TIM16_IRQHandler,Default_Handler
+
+ .weak TIM1_TRG_COM_TIM17_IRQHandler
+ .thumb_set TIM1_TRG_COM_TIM17_IRQHandler,Default_Handler
+
+ .weak TIM1_CC_IRQHandler
+ .thumb_set TIM1_CC_IRQHandler,Default_Handler
+
+ .weak TIM2_IRQHandler
+ .thumb_set TIM2_IRQHandler,Default_Handler
+
+ .weak TIM3_IRQHandler
+ .thumb_set TIM3_IRQHandler,Default_Handler
+
+ .weak TIM4_IRQHandler
+ .thumb_set TIM4_IRQHandler,Default_Handler
+
+ .weak I2C1_EV_IRQHandler
+ .thumb_set I2C1_EV_IRQHandler,Default_Handler
+
+ .weak I2C1_ER_IRQHandler
+ .thumb_set I2C1_ER_IRQHandler,Default_Handler
+
+ .weak I2C2_EV_IRQHandler
+ .thumb_set I2C2_EV_IRQHandler,Default_Handler
+
+ .weak I2C2_ER_IRQHandler
+ .thumb_set I2C2_ER_IRQHandler,Default_Handler
+
+ .weak SPI1_IRQHandler
+ .thumb_set SPI1_IRQHandler,Default_Handler
+
+ .weak SPI2_IRQHandler
+ .thumb_set SPI2_IRQHandler,Default_Handler
+
+ .weak USART1_IRQHandler
+ .thumb_set USART1_IRQHandler,Default_Handler
+
+ .weak USART2_IRQHandler
+ .thumb_set USART2_IRQHandler,Default_Handler
+
+ .weak USART3_IRQHandler
+ .thumb_set USART3_IRQHandler,Default_Handler
+
+ .weak EXTI15_10_IRQHandler
+ .thumb_set EXTI15_10_IRQHandler,Default_Handler
+
+ .weak RTC_Alarm_IRQHandler
+ .thumb_set RTC_Alarm_IRQHandler,Default_Handler
+
+ .weak DFSDM1_FLT3_IRQHandler
+ .thumb_set DFSDM1_FLT3_IRQHandler,Default_Handler
+
+ .weak TIM8_BRK_IRQHandler
+ .thumb_set TIM8_BRK_IRQHandler,Default_Handler
+
+ .weak TIM8_UP_IRQHandler
+ .thumb_set TIM8_UP_IRQHandler,Default_Handler
+
+ .weak TIM8_TRG_COM_IRQHandler
+ .thumb_set TIM8_TRG_COM_IRQHandler,Default_Handler
+
+ .weak TIM8_CC_IRQHandler
+ .thumb_set TIM8_CC_IRQHandler,Default_Handler
+
+ .weak ADC3_IRQHandler
+ .thumb_set ADC3_IRQHandler,Default_Handler
+
+ .weak FMC_IRQHandler
+ .thumb_set FMC_IRQHandler,Default_Handler
+
+ .weak SDMMC1_IRQHandler
+ .thumb_set SDMMC1_IRQHandler,Default_Handler
+
+ .weak TIM5_IRQHandler
+ .thumb_set TIM5_IRQHandler,Default_Handler
+
+ .weak SPI3_IRQHandler
+ .thumb_set SPI3_IRQHandler,Default_Handler
+
+ .weak UART4_IRQHandler
+ .thumb_set UART4_IRQHandler,Default_Handler
+
+ .weak UART5_IRQHandler
+ .thumb_set UART5_IRQHandler,Default_Handler
+
+ .weak TIM6_DAC_IRQHandler
+ .thumb_set TIM6_DAC_IRQHandler,Default_Handler
+
+ .weak TIM7_IRQHandler
+ .thumb_set TIM7_IRQHandler,Default_Handler
+
+ .weak DMA2_Channel1_IRQHandler
+ .thumb_set DMA2_Channel1_IRQHandler,Default_Handler
+
+ .weak DMA2_Channel2_IRQHandler
+ .thumb_set DMA2_Channel2_IRQHandler,Default_Handler
+
+ .weak DMA2_Channel3_IRQHandler
+ .thumb_set DMA2_Channel3_IRQHandler,Default_Handler
+
+ .weak DMA2_Channel4_IRQHandler
+ .thumb_set DMA2_Channel4_IRQHandler,Default_Handler
+
+ .weak DMA2_Channel5_IRQHandler
+ .thumb_set DMA2_Channel5_IRQHandler,Default_Handler
+
+ .weak DFSDM1_FLT0_IRQHandler
+ .thumb_set DFSDM1_FLT0_IRQHandler,Default_Handler
+
+ .weak DFSDM1_FLT1_IRQHandler
+ .thumb_set DFSDM1_FLT1_IRQHandler,Default_Handler
+
+ .weak DFSDM1_FLT2_IRQHandler
+ .thumb_set DFSDM1_FLT2_IRQHandler,Default_Handler
+
+ .weak COMP_IRQHandler
+ .thumb_set COMP_IRQHandler,Default_Handler
+
+ .weak LPTIM1_IRQHandler
+ .thumb_set LPTIM1_IRQHandler,Default_Handler
+
+ .weak LPTIM2_IRQHandler
+ .thumb_set LPTIM2_IRQHandler,Default_Handler
+
+ .weak OTG_FS_IRQHandler
+ .thumb_set OTG_FS_IRQHandler,Default_Handler
+
+ .weak DMA2_Channel6_IRQHandler
+ .thumb_set DMA2_Channel6_IRQHandler,Default_Handler
+
+ .weak DMA2_Channel7_IRQHandler
+ .thumb_set DMA2_Channel7_IRQHandler,Default_Handler
+
+ .weak LPUART1_IRQHandler
+ .thumb_set LPUART1_IRQHandler,Default_Handler
+
+ .weak QUADSPI_IRQHandler
+ .thumb_set QUADSPI_IRQHandler,Default_Handler
+
+ .weak I2C3_EV_IRQHandler
+ .thumb_set I2C3_EV_IRQHandler,Default_Handler
+
+ .weak I2C3_ER_IRQHandler
+ .thumb_set I2C3_ER_IRQHandler,Default_Handler
+
+ .weak SAI1_IRQHandler
+ .thumb_set SAI1_IRQHandler,Default_Handler
+
+ .weak SAI2_IRQHandler
+ .thumb_set SAI2_IRQHandler,Default_Handler
+
+ .weak SWPMI1_IRQHandler
+ .thumb_set SWPMI1_IRQHandler,Default_Handler
+
+ .weak TSC_IRQHandler
+ .thumb_set TSC_IRQHandler,Default_Handler
+
+ .weak LCD_IRQHandler
+ .thumb_set LCD_IRQHandler,Default_Handler
+
+ .weak RNG_IRQHandler
+ .thumb_set RNG_IRQHandler,Default_Handler
+
+ .weak FPU_IRQHandler
+ .thumb_set FPU_IRQHandler,Default_Handler
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
diff --git a/hw/bsp/nucleo-l476rg/src/hal_bsp.c b/hw/bsp/nucleo-l476rg/src/hal_bsp.c
new file mode 100644
index 0000000..c90aed1
--- /dev/null
+++ b/hw/bsp/nucleo-l476rg/src/hal_bsp.c
@@ -0,0 +1,177 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+#include <assert.h>
+
+#include "os/mynewt.h"
+
+#if MYNEWT_VAL(UART_0)
+#include <uart/uart.h>
+#include <uart_hal/uart_hal.h>
+#endif
+
+#include <hal/hal_bsp.h>
+#include <hal/hal_gpio.h>
+#include <hal/hal_flash_int.h>
+#include <hal/hal_timer.h>
+
+#if MYNEWT_VAL(SPI_0_MASTER) || MYNEWT_VAL(SPI_0_SLAVE)
+#include <hal/hal_spi.h>
+#endif
+
+#include <stm32l476xx.h>
+#include <stm32l4xx_hal_rcc.h>
+#include <stm32l4xx_hal_pwr.h>
+#include <stm32l4xx_hal_flash.h>
+#include <stm32l4xx_hal_gpio_ex.h>
+#include <mcu/stm32l4_bsp.h>
+#include "mcu/stm32l4xx_mynewt_hal.h"
+#include "mcu/stm32_hal.h"
+#include "hal/hal_i2c.h"
+
+#include "bsp/bsp.h"
+
+#if MYNEWT_VAL(UART_0)
+static struct uart_dev hal_uart0;
+
+static const struct stm32_uart_cfg uart_cfg[UART_CNT] = {
+ [0] = {
+ .suc_uart = USART2,
+ .suc_rcc_reg = &RCC->APB1ENR1,
+ .suc_rcc_dev = RCC_APB1ENR1_USART2EN,
+ .suc_pin_tx = MCU_GPIO_PORTA(2),
+ .suc_pin_rx = MCU_GPIO_PORTA(3),
+ .suc_pin_rts = -1,
+ .suc_pin_cts = -1,
+ .suc_pin_af = GPIO_AF7_USART2,
+ .suc_irqn = USART2_IRQn
+ }
+};
+#endif
+
+#if MYNEWT_VAL(I2C_0)
+/*
+ * NOTE: The PB8 and PB9 pins are connected through jumpers in the board to
+ * both AIN and I2C pins. To enable I2C functionality SB51/SB56 need to
+ * be removed (they are the default connections) and SB46/SB52 need to
+ * be added.
+ */
+static struct stm32_hal_i2c_cfg i2c_cfg0 = {
+ .hic_i2c = I2C1,
+ .hic_rcc_reg = &RCC->APB1ENR1,
+ .hic_rcc_dev = RCC_APB1ENR1_I2C1EN,
+ .hic_pin_sda = MCU_GPIO_PORTB(9), /* PB9 - D14 on CN5 */
+ .hic_pin_scl = MCU_GPIO_PORTB(8), /* PB8 - D15 on CN5 */
+ .hic_pin_af = GPIO_AF4_I2C1,
+ .hic_10bit = 0,
+ .hic_timingr = 0x10420F13, /* 100KHz at 8MHz of SysCoreClock */
+};
+#endif
+
+#if MYNEWT_VAL(SPI_0_SLAVE) || MYNEWT_VAL(SPI_0_MASTER)
+struct stm32_hal_spi_cfg spi0_cfg = {
+ .ss_pin = MCU_GPIO_PORTA(4),
+ .sck_pin = MCU_GPIO_PORTA(5),
+ .miso_pin = MCU_GPIO_PORTA(6),
+ .mosi_pin = MCU_GPIO_PORTB(5),
+ .irq_prio = 2,
+};
+#endif
+
+static const struct hal_bsp_mem_dump dump_cfg[] = {
+ [0] = {
+ .hbmd_start = &_ram_start,
+ .hbmd_size = RAM_SIZE
+ },
+};
+
+const struct hal_flash *
+hal_bsp_flash_dev(uint8_t id)
+{
+ /*
+ * Internal flash mapped to id 0.
+ */
+ if (id != 0) {
+ return NULL;
+ }
+ return &stm32l4_flash_dev;
+}
+
+const struct hal_bsp_mem_dump *
+hal_bsp_core_dump(int *area_cnt)
+{
+ *area_cnt = sizeof(dump_cfg) / sizeof(dump_cfg[0]);
+ return dump_cfg;
+}
+
+void
+hal_bsp_init(void)
+{
+ int rc;
+
+ (void)rc;
+
+#if MYNEWT_VAL(UART_0)
+ rc = os_dev_create((struct os_dev *) &hal_uart0, "uart0",
+ OS_DEV_INIT_PRIMARY, 0, uart_hal_init, (void *)&uart_cfg[0]);
+ assert(rc == 0);
+#endif
+
+#if MYNEWT_VAL(TIMER_0)
+ hal_timer_init(0, TIM2);
+#endif
+
+#if MYNEWT_VAL(TIMER_1)
+ hal_timer_init(1, TIM3);
+#endif
+
+#if MYNEWT_VAL(TIMER_2)
+ hal_timer_init(2, TIM4);
+#endif
+
+#if MYNEWT_VAL(SPI_0_MASTER)
+ rc = hal_spi_init(0, &spi0_cfg, HAL_SPI_TYPE_MASTER);
+ assert(rc == 0);
+#endif
+
+#if MYNEWT_VAL(SPI_0_SLAVE)
+ rc = hal_spi_init(0, &spi0_cfg, HAL_SPI_TYPE_SLAVE);
+ assert(rc == 0);
+#endif
+
+#if MYNEWT_VAL(I2C_0)
+ rc = hal_i2c_init(0, &i2c_cfg0);
+ assert(rc == 0);
+#endif
+}
+
+/**
+ * Returns the configured priority for the given interrupt. If no priority
+ * configured, return the priority passed in
+ *
+ * @param irq_num
+ * @param pri
+ *
+ * @return uint32_t
+ */
+uint32_t
+hal_bsp_get_nvic_priority(int irq_num, uint32_t pri)
+{
+ /* Add any interrupt priorities configured by the bsp here */
+ return pri;
+}
diff --git a/hw/bsp/nucleo-l476rg/src/system_stm32l4xx.c b/hw/bsp/nucleo-l476rg/src/system_stm32l4xx.c
new file mode 100644
index 0000000..2caad67
--- /dev/null
+++ b/hw/bsp/nucleo-l476rg/src/system_stm32l4xx.c
@@ -0,0 +1,349 @@
+/**
+ ******************************************************************************
+ * @file system_stm32l4xx.c
+ * @author MCD Application Team
+ * @brief CMSIS Cortex-M4 Device Peripheral Access Layer System Source File
+ *
+ * This file provides two functions and one global variable to be called from
+ * user application:
+ * - SystemInit(): This function is called at startup just after reset and
+ * before branch to main program. This call is made inside
+ * the "startup_stm32l4xx.s" file.
+ *
+ * - SystemCoreClock variable: Contains the core clock (HCLK), it can be used
+ * by the user application to setup the SysTick
+ * timer or configure other parameters.
+ *
+ * - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must
+ * be called whenever the core clock is changed
+ * during program execution.
+ *
+ * After each device reset the MSI (4 MHz) is used as system clock source.
+ * Then SystemInit() function is called, in "startup_stm32l4xx.s" file, to
+ * configure the system clock before to branch to main program.
+ *
+ * This file configures the system clock as follows:
+ *=============================================================================
+ *-----------------------------------------------------------------------------
+ * System Clock source | MSI
+ *-----------------------------------------------------------------------------
+ * SYSCLK(Hz) | 4000000
+ *-----------------------------------------------------------------------------
+ * HCLK(Hz) | 4000000
+ *-----------------------------------------------------------------------------
+ * AHB Prescaler | 1
+ *-----------------------------------------------------------------------------
+ * APB1 Prescaler | 1
+ *-----------------------------------------------------------------------------
+ * APB2 Prescaler | 1
+ *-----------------------------------------------------------------------------
+ * PLL_M | 1
+ *-----------------------------------------------------------------------------
+ * PLL_N | 8
+ *-----------------------------------------------------------------------------
+ * PLL_P | 7
+ *-----------------------------------------------------------------------------
+ * PLL_Q | 2
+ *-----------------------------------------------------------------------------
+ * PLL_R | 2
+ *-----------------------------------------------------------------------------
+ * PLLSAI1_P | NA
+ *-----------------------------------------------------------------------------
+ * PLLSAI1_Q | NA
+ *-----------------------------------------------------------------------------
+ * PLLSAI1_R | NA
+ *-----------------------------------------------------------------------------
+ * PLLSAI2_P | NA
+ *-----------------------------------------------------------------------------
+ * PLLSAI2_Q | NA
+ *-----------------------------------------------------------------------------
+ * PLLSAI2_R | NA
+ *-----------------------------------------------------------------------------
+ * Require 48MHz for USB OTG FS, | Disabled
+ * SDIO and RNG clock |
+ *-----------------------------------------------------------------------------
+ *=============================================================================
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>© COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. Neither the name of STMicroelectronics nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ ******************************************************************************
+ */
+
+/** @addtogroup CMSIS
+ * @{
+ */
+
+/** @addtogroup stm32l4xx_system
+ * @{
+ */
+
+/** @addtogroup STM32L4xx_System_Private_Includes
+ * @{
+ */
+
+#include "stm32l4xx.h"
+#include "mcu/cmsis_nvic.h"
+
+#if !defined (HSE_VALUE)
+ #define HSE_VALUE ((uint32_t)8000000) /*!< Value of the External oscillator in Hz */
+#endif /* HSE_VALUE */
+
+#if !defined (MSI_VALUE)
+ #define MSI_VALUE ((uint32_t)4000000) /*!< Value of the Internal oscillator in Hz*/
+#endif /* MSI_VALUE */
+
+#if !defined (HSI_VALUE)
+ #define HSI_VALUE ((uint32_t)16000000) /*!< Value of the Internal oscillator in Hz*/
+#endif /* HSI_VALUE */
+
+/**
+ * @}
+ */
+
+/** @addtogroup STM32L4xx_System_Private_TypesDefinitions
+ * @{
+ */
+
+/**
+ * @}
+ */
+
+/** @addtogroup STM32L4xx_System_Private_Defines
+ * @{
+ */
+
+/************************* Miscellaneous Configuration ************************/
+/*!< Uncomment the following line if you need to relocate your vector Table in
+ Internal SRAM. */
+/* #define VECT_TAB_SRAM */
+#define VECT_TAB_OFFSET 0x00 /*!< Vector Table base offset field.
+ This value must be a multiple of 0x200. */
+/******************************************************************************/
+/**
+ * @}
+ */
+
+/** @addtogroup STM32L4xx_System_Private_Macros
+ * @{
+ */
+
+/**
+ * @}
+ */
+
+/** @addtogroup STM32L4xx_System_Private_Variables
+ * @{
+ */
+ /* The SystemCoreClock variable is updated in three ways:
+ 1) by calling CMSIS function SystemCoreClockUpdate()
+ 2) by calling HAL API function HAL_RCC_GetHCLKFreq()
+ 3) each time HAL_RCC_ClockConfig() is called to configure the system clock frequency
+ Note: If you use this function to configure the system clock; then there
+ is no need to call the 2 first functions listed above, since SystemCoreClock
+ variable is updated automatically.
+ */
+ uint32_t SystemCoreClock = 4000000;
+
+ const uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
+ const uint8_t APBPrescTable[8] = {0, 0, 0, 0, 1, 2, 3, 4};
+ const uint32_t MSIRangeTable[12] = {100000, 200000, 400000, 800000, 1000000, 2000000, \
+ 4000000, 8000000, 16000000, 24000000, 32000000, 48000000};
+/**
+ * @}
+ */
+
+/** @addtogroup STM32L4xx_System_Private_FunctionPrototypes
+ * @{
+ */
+
+/**
+ * @}
+ */
+
+/** @addtogroup STM32L4xx_System_Private_Functions
+ * @{
+ */
+
+/**
+ * @brief Setup the microcontroller system.
+ * @param None
+ * @retval None
+ */
+
+void SystemInit(void)
+{
+ /* FPU settings ------------------------------------------------------------*/
+ #if (__FPU_PRESENT == 1) && (__FPU_USED == 1)
+ SCB->CPACR |= ((3UL << 10*2)|(3UL << 11*2)); /* set CP10 and CP11 Full Access */
+ #endif
+ /* Reset the RCC clock configuration to the default reset state ------------*/
+ /* Set MSION bit */
+ RCC->CR |= RCC_CR_MSION;
+
+ /* Reset CFGR register */
+ RCC->CFGR = 0x00000000;
+
+ /* Reset HSEON, CSSON , HSION, and PLLON bits */
+ RCC->CR &= (uint32_t)0xEAF6FFFF;
+
+ /* Reset PLLCFGR register */
+ RCC->PLLCFGR = 0x00001000;
+
+ /* Reset HSEBYP bit */
+ RCC->CR &= (uint32_t)0xFFFBFFFF;
+
+ /* Disable all interrupts */
+ RCC->CIER = 0x00000000;
+
+ /* Relocate the vector table */
+ NVIC_Relocate();
+}
+
+/**
+ * @brief Update SystemCoreClock variable according to Clock Register Values.
+ * The SystemCoreClock variable contains the core clock (HCLK), it can
+ * be used by the user application to setup the SysTick timer or configure
+ * other parameters.
+ *
+ * @note Each time the core clock (HCLK) changes, this function must be called
+ * to update SystemCoreClock variable value. Otherwise, any configuration
+ * based on this variable will be incorrect.
+ *
+ * @note - The system frequency computed by this function is not the real
+ * frequency in the chip. It is calculated based on the predefined
+ * constant and the selected clock source:
+ *
+ * - If SYSCLK source is MSI, SystemCoreClock will contain the MSI_VALUE(*)
+ *
+ * - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(**)
+ *
+ * - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(***)
+ *
+ * - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(***)
+ * or HSI_VALUE(*) or MSI_VALUE(*) multiplied/divided by the PLL factors.
+ *
+ * (*) MSI_VALUE is a constant defined in stm32l4xx_hal.h file (default value
+ * 4 MHz) but the real value may vary depending on the variations
+ * in voltage and temperature.
+ *
+ * (**) HSI_VALUE is a constant defined in stm32l4xx_hal.h file (default value
+ * 16 MHz) but the real value may vary depending on the variations
+ * in voltage and temperature.
+ *
+ * (***) HSE_VALUE is a constant defined in stm32l4xx_hal.h file (default value
+ * 8 MHz), user has to ensure that HSE_VALUE is same as the real
+ * frequency of the crystal used. Otherwise, this function may
+ * have wrong result.
+ *
+ * - The result of this function could be not correct when using fractional
+ * value for HSE crystal.
+ *
+ * @param None
+ * @retval None
+ */
+void SystemCoreClockUpdate(void)
+{
+ uint32_t tmp = 0, msirange = 0, pllvco = 0, pllr = 2, pllsource = 0, pllm = 2;
+
+ /* Get MSI Range frequency--------------------------------------------------*/
+ if((RCC->CR & RCC_CR_MSIRGSEL) == RESET)
+ { /* MSISRANGE from RCC_CSR applies */
+ msirange = (RCC->CSR & RCC_CSR_MSISRANGE) >> 8;
+ }
+ else
+ { /* MSIRANGE from RCC_CR applies */
+ msirange = (RCC->CR & RCC_CR_MSIRANGE) >> 4;
+ }
+ /*MSI frequency range in HZ*/
+ msirange = MSIRangeTable[msirange];
+
+ /* Get SYSCLK source -------------------------------------------------------*/
+ switch (RCC->CFGR & RCC_CFGR_SWS)
+ {
+ case 0x00: /* MSI used as system clock source */
+ SystemCoreClock = msirange;
+ break;
+
+ case 0x04: /* HSI used as system clock source */
+ SystemCoreClock = HSI_VALUE;
+ break;
+
+ case 0x08: /* HSE used as system clock source */
+ SystemCoreClock = HSE_VALUE;
+ break;
+
+ case 0x0C: /* PLL used as system clock source */
+ /* PLL_VCO = (HSE_VALUE or HSI_VALUE or MSI_VALUE/ PLLM) * PLLN
+ SYSCLK = PLL_VCO / PLLR
+ */
+ pllsource = (RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC);
+ pllm = ((RCC->PLLCFGR & RCC_PLLCFGR_PLLM) >> 4) + 1 ;
+
+ switch (pllsource)
+ {
+ case 0x02: /* HSI used as PLL clock source */
+ pllvco = (HSI_VALUE / pllm);
+ break;
+
+ case 0x03: /* HSE used as PLL clock source */
+ pllvco = (HSE_VALUE / pllm);
+ break;
+
+ default: /* MSI used as PLL clock source */
+ pllvco = (msirange / pllm);
+ break;
+ }
+ pllvco = pllvco * ((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> 8);
+ pllr = (((RCC->PLLCFGR & RCC_PLLCFGR_PLLR) >> 25) + 1) * 2;
+ SystemCoreClock = pllvco/pllr;
+ break;
+
+ default:
+ SystemCoreClock = msirange;
+ break;
+ }
+ /* Compute HCLK clock frequency --------------------------------------------*/
+ /* Get HCLK prescaler */
+ tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4)];
+ /* HCLK clock frequency */
+ SystemCoreClock >>= tmp;
+}
+
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
diff --git a/hw/bsp/nucleo-l476rg/syscfg.yml b/hw/bsp/nucleo-l476rg/syscfg.yml
new file mode 100644
index 0000000..e69c957
--- /dev/null
+++ b/hw/bsp/nucleo-l476rg/syscfg.yml
@@ -0,0 +1,41 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements. See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership. The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied. See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
+syscfg.defs:
+ UART_0:
+ description: 'Whether to enable UART0'
+ value: 1
+
+ TIMER_0:
+ description: 'Whether to enable TIMER_0'
+ value: 0
+
+ TIMER_1:
+ description: 'Whether to enable TIMER_1'
+ value: 0
+
+ TIMER_2:
+ description: 'Whether to enable TIMER_2'
+ value: 0
+
+syscfg.vals:
+ REBOOT_LOG_FLASH_AREA: FLASH_AREA_REBOOT_LOG
+ CONFIG_FCB_FLASH_AREA: FLASH_AREA_NFFS
+ NFFS_FLASH_AREA: FLASH_AREA_NFFS
+ COREDUMP_FLASH_AREA: FLASH_AREA_IMAGE_1