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 2018/09/18 10:04:34 UTC

[mynewt-core] 04/04: [STM32] Add B-L072Z-LRWAN1 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 e68ed322cc752e7a78e476475239ebc0607f8e37
Author: Fabio Utzig <ut...@apache.org>
AuthorDate: Wed Jul 18 09:30:35 2018 -0300

    [STM32] Add B-L072Z-LRWAN1 BSP
---
 hw/bsp/b-l072z-lrwan1/b-l072z-lrwan1.cfg           |  27 ++
 hw/bsp/b-l072z-lrwan1/b-l072z-lrwan1.ld            |  28 ++
 hw/bsp/b-l072z-lrwan1/b-l072z-lrwan1_debug.cmd     |  22 ++
 hw/bsp/b-l072z-lrwan1/b-l072z-lrwan1_debug.sh      |  37 +++
 hw/bsp/b-l072z-lrwan1/b-l072z-lrwan1_download.cmd  |  22 ++
 hw/bsp/b-l072z-lrwan1/b-l072z-lrwan1_download.sh   |  42 +++
 hw/bsp/b-l072z-lrwan1/boot-b-l072z-lrwan1.ld       |  28 ++
 hw/bsp/b-l072z-lrwan1/bsp.yml                      |  63 +++++
 hw/bsp/b-l072z-lrwan1/include/bsp/bsp.h            |  53 ++++
 .../include/bsp/stm32l0xx_hal_conf.h               | 315 +++++++++++++++++++++
 hw/bsp/b-l072z-lrwan1/pkg.yml                      |  43 +++
 .../src/arch/cortex_m0/startup_stm32l072xx.s       | 313 ++++++++++++++++++++
 hw/bsp/b-l072z-lrwan1/src/hal_bsp.c                | 171 +++++++++++
 hw/bsp/b-l072z-lrwan1/src/system_stm32l0xx.c       | 282 ++++++++++++++++++
 hw/bsp/b-l072z-lrwan1/syscfg.yml                   |  41 +++
 15 files changed, 1487 insertions(+)

diff --git a/hw/bsp/b-l072z-lrwan1/b-l072z-lrwan1.cfg b/hw/bsp/b-l072z-lrwan1/b-l072z-lrwan1.cfg
new file mode 100644
index 0000000..a9e0bd8
--- /dev/null
+++ b/hw/bsp/b-l072z-lrwan1/b-l072z-lrwan1.cfg
@@ -0,0 +1,27 @@
+#
+# 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.
+#
+
+# https://www.st.com/en/evaluation-tools/b-l072z-lrwan1.html
+source [find interface/stlink-v2-1.cfg]
+
+transport select hla_swd
+
+set WORKAREASIZE 0x2000
+
+source [find target/stm32l0.cfg]
diff --git a/hw/bsp/b-l072z-lrwan1/b-l072z-lrwan1.ld b/hw/bsp/b-l072z-lrwan1/b-l072z-lrwan1.ld
new file mode 100644
index 0000000..0db6fd1
--- /dev/null
+++ b/hw/bsp/b-l072z-lrwan1/b-l072z-lrwan1.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 = 0x08008000, LENGTH = 72K /* First image slot. */
+  RAM (rwx)  : ORIGIN = 0x20000000, LENGTH = 20K
+}
+
+/* This linker script is used for images and thus contains an image header */
+_imghdr_size = 0x20;
diff --git a/hw/bsp/b-l072z-lrwan1/b-l072z-lrwan1_debug.cmd b/hw/bsp/b-l072z-lrwan1/b-l072z-lrwan1_debug.cmd
new file mode 100755
index 0000000..96f0b26
--- /dev/null
+++ b/hw/bsp/b-l072z-lrwan1/b-l072z-lrwan1_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/b-l072z-lrwan1/b-l072z-lrwan1_debug.sh b/hw/bsp/b-l072z-lrwan1/b-l072z-lrwan1_debug.sh
new file mode 100755
index 0000000..032eeb9
--- /dev/null
+++ b/hw/bsp/b-l072z-lrwan1/b-l072z-lrwan1_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="-s $BSP_PATH -f b-l072z-lrwan1.cfg"
+# Exit openocd when gdb detaches.
+EXTRA_JTAG_CMD="$EXTRA_JTAG_CMD; stm32l0.cpu configure -event gdb-detach {if {[stm32l0.cpu curstate] eq \"halted\"} resume;shutdown}"
+
+openocd_debug
diff --git a/hw/bsp/b-l072z-lrwan1/b-l072z-lrwan1_download.cmd b/hw/bsp/b-l072z-lrwan1/b-l072z-lrwan1_download.cmd
new file mode 100755
index 0000000..96f0b26
--- /dev/null
+++ b/hw/bsp/b-l072z-lrwan1/b-l072z-lrwan1_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/b-l072z-lrwan1/b-l072z-lrwan1_download.sh b/hw/bsp/b-l072z-lrwan1/b-l072z-lrwan1_download.sh
new file mode 100755
index 0000000..5df97ee
--- /dev/null
+++ b/hw/bsp/b-l072z-lrwan1/b-l072z-lrwan1_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="-s $BSP_PATH -f b-l072z-lrwan1.cfg"
+
+if [ "$MFG_IMAGE" ]; then
+    FLASH_OFFSET=0x08000000
+fi
+
+common_file_to_load
+openocd_load
+openocd_reset_run
diff --git a/hw/bsp/b-l072z-lrwan1/boot-b-l072z-lrwan1.ld b/hw/bsp/b-l072z-lrwan1/boot-b-l072z-lrwan1.ld
new file mode 100644
index 0000000..fe44cee
--- /dev/null
+++ b/hw/bsp/b-l072z-lrwan1/boot-b-l072z-lrwan1.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 = 20K
+}
+
+/* The bootloader does not contain an image header */
+_imghdr_size = 0x0;
diff --git a/hw/bsp/b-l072z-lrwan1/bsp.yml b/hw/bsp/b-l072z-lrwan1/bsp.yml
new file mode 100644
index 0000000..01715ef
--- /dev/null
+++ b/hw/bsp/b-l072z-lrwan1/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_m0
+bsp.compiler: compiler/arm-none-eabi-m0
+bsp.linkerscript:
+    - "hw/bsp/b-l072z-lrwan1/b-l072z-lrwan1.ld"
+    - "hw/mcu/stm/stm32l0xx/stm32l072.ld"
+bsp.linkerscript.BOOT_LOADER.OVERWRITE:
+    - "hw/bsp/b-l072z-lrwan1/boot-b-l072z-lrwan1.ld"
+    - "hw/mcu/stm/stm32l0xx/stm32l072.ld"
+bsp.downloadscript: "hw/bsp/b-l072z-lrwan1/b-l072z-lrwan1_download.sh"
+bsp.debugscript: "hw/bsp/b-l072z-lrwan1/b-l072z-lrwan1_debug.sh"
+bsp.downloadscript.WINDOWS.OVERWRITE: "hw/bsp/b-l072z-lrwan1/b-l072z-lrwan1_download.cmd"
+bsp.debugscript.WINDOWS.OVERWRITE: "hw/bsp/b-l072z-lrwan1/b-l072z-lrwan1_debug.cmd"
+
+bsp.flash_map:
+    areas:
+        # System areas.
+        FLASH_AREA_BOOTLOADER:
+            device: 0
+            offset: 0x08000000
+            size: 16kB
+        FLASH_AREA_IMAGE_0:
+            device: 0
+            offset: 0x08008000
+            size:  72kB
+        FLASH_AREA_IMAGE_1:
+            device: 0
+            offset: 0x0801a000
+            size: 72kB
+        FLASH_AREA_IMAGE_SCRATCH:
+            device: 0
+            offset: 0x0802c000
+            size: 16kB
+
+        # User areas.
+        FLASH_AREA_REBOOT_LOG:
+            user_id: 0
+            device: 0
+            offset: 0x08004000
+            size: 8kB
+        FLASH_AREA_NFFS:
+            user_id: 1
+            device: 0
+            offset: 0x08006000
+            size: 8kB
diff --git a/hw/bsp/b-l072z-lrwan1/include/bsp/bsp.h b/hw/bsp/b-l072z-lrwan1/include/bsp/bsp.h
new file mode 100644
index 0000000..b6f4a7e
--- /dev/null
+++ b/hw/bsp/b-l072z-lrwan1/include/bsp/bsp.h
@@ -0,0 +1,53 @@
+/*
+ * 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        (20 * 1024)
+
+#define LED_BLINK_PIN   MCU_GPIO_PORTB(5)  /* LD1 - green */
+#define LED_2           MCU_GPIO_PORTB(6)  /* LD3 - blue */
+#define LED_3           MCU_GPIO_PORTB(7)  /* LD4 - red */
+#define LED_4           MCU_GPIO_PORTA(5)  /* LD2 - green */
+
+/* UART */
+#define UART_CNT 1
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  /* H_BSP_H */
diff --git a/hw/bsp/b-l072z-lrwan1/include/bsp/stm32l0xx_hal_conf.h b/hw/bsp/b-l072z-lrwan1/include/bsp/stm32l0xx_hal_conf.h
new file mode 100644
index 0000000..a718ddd
--- /dev/null
+++ b/hw/bsp/b-l072z-lrwan1/include/bsp/stm32l0xx_hal_conf.h
@@ -0,0 +1,315 @@
+/**
+  ******************************************************************************
+  * @file    stm32l0xx_hal_conf.h
+  * @author  MCD Application Team
+  * @brief   HAL configuration file. 
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT(c) 2016 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 __STM32L0xx_HAL_CONF_H
+#define __STM32L0xx_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_MODULE_ENABLED  
+#define HAL_ADC_MODULE_ENABLED   
+#define HAL_COMP_MODULE_ENABLED 
+#define HAL_CRC_MODULE_ENABLED  
+#define HAL_CRYP_MODULE_ENABLED  
+#define HAL_DAC_MODULE_ENABLED   
+/* #define HAL_FIREWALL_MODULE_ENABLED */
+#define HAL_I2S_MODULE_ENABLED   
+#define HAL_LCD_MODULE_ENABLED 
+#define HAL_LPTIM_MODULE_ENABLED
+#define HAL_RNG_MODULE_ENABLED   
+#define HAL_RTC_MODULE_ENABLED
+#define HAL_TIM_MODULE_ENABLED
+#define HAL_TSC_MODULE_ENABLED   
+#define HAL_UART_MODULE_ENABLED 
+#define HAL_USART_MODULE_ENABLED 
+#define HAL_IRDA_MODULE_ENABLED 
+#define HAL_SMARTCARD_MODULE_ENABLED 
+#define HAL_SMBUS_MODULE_ENABLED 
+#define HAL_WWDG_MODULE_ENABLED  
+#define HAL_CORTEX_MODULE_ENABLED
+#define HAL_PCD_MODULE_ENABLED 
+#endif
+
+#define HAL_FLASH_MODULE_ENABLED
+#define HAL_IWDG_MODULE_ENABLED
+#define HAL_GPIO_MODULE_ENABLED
+#define HAL_RCC_MODULE_ENABLED
+#define HAL_PWR_MODULE_ENABLED
+#define HAL_I2C_MODULE_ENABLED
+#define HAL_DMA_MODULE_ENABLED
+#define HAL_SPI_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    ((uint32_t)8000000U) /*!< Value of the External oscillator in Hz */
+#endif /* HSE_VALUE */
+
+#if !defined  (HSE_STARTUP_TIMEOUT)
+  #define HSE_STARTUP_TIMEOUT    ((uint32_t)100)   /*!< 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    ((uint32_t)2000000U) /*!< 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    ((uint32_t)16000000U) /*!< Value of the Internal oscillator in Hz*/
+#endif /* HSI_VALUE */
+
+/**
+  * @brief Internal High Speed oscillator for USB (HSI48) value.
+  */
+#if !defined  (HSI48_VALUE) 
+#define HSI48_VALUE ((uint32_t)48000000U) /*!< Value of the Internal High Speed oscillator for USB in Hz.
+                                             The real value may vary depending on the variations
+                                             in voltage and temperature.  */
+#endif /* HSI48_VALUE */
+
+/**
+  * @brief Internal Low Speed oscillator (LSI) value.
+  */
+#if !defined  (LSI_VALUE) 
+ #define LSI_VALUE  ((uint32_t)37000U)       /*!< 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    ((uint32_t)32768U) /*!< Value of the External oscillator in Hz*/
+#endif /* LSE_VALUE */
+
+/**
+  * @brief Time out for LSE start up value in ms.
+  */
+#if !defined  (LSE_STARTUP_TIMEOUT)
+  #define LSE_STARTUP_TIMEOUT    ((uint32_t)5000U)   /*!< Time out for LSE start up, in ms */
+#endif /* LSE_STARTUP_TIMEOUT */
+
+   
+/* 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                    ((uint32_t)3300U) /*!< Value of VDD in mv */
+#define  TICK_INT_PRIORITY            (((uint32_t)1U<<__NVIC_PRIO_BITS) - 1U)    /*!< tick interrupt priority */            
+#define  USE_RTOS                     0U     
+#define  PREFETCH_ENABLE              1U              
+#define  PREREAD_ENABLE               0U
+#define  BUFFER_CACHE_DISABLE         0U
+
+/* ########################## Assert Selection ############################## */
+/**
+  * @brief Uncomment the line below to expanse the "assert_param" macro in the 
+  *        HAL drivers code
+  */
+/* #define USE_FULL_ASSERT    1 */
+
+/* Includes ------------------------------------------------------------------*/
+/**
+  * @brief Include module's header file 
+  */
+
+#ifdef HAL_RCC_MODULE_ENABLED
+  #include "stm32l0xx_hal_rcc.h"
+#endif /* HAL_RCC_MODULE_ENABLED */
+  
+#ifdef HAL_GPIO_MODULE_ENABLED
+  #include "stm32l0xx_hal_gpio.h"
+#endif /* HAL_GPIO_MODULE_ENABLED */
+
+#ifdef HAL_DMA_MODULE_ENABLED
+  #include "stm32l0xx_hal_dma.h"
+#endif /* HAL_DMA_MODULE_ENABLED */
+
+#ifdef HAL_CORTEX_MODULE_ENABLED
+  #include "stm32l0xx_hal_cortex.h"
+#endif /* HAL_CORTEX_MODULE_ENABLED */
+
+#ifdef HAL_ADC_MODULE_ENABLED
+  #include "stm32l0xx_hal_adc.h"
+#endif /* HAL_ADC_MODULE_ENABLED */
+
+#ifdef HAL_COMP_MODULE_ENABLED
+  #include "stm32l0xx_hal_comp.h"
+#endif /* HAL_COMP_MODULE_ENABLED */
+
+#ifdef HAL_CRC_MODULE_ENABLED
+  #include "stm32l0xx_hal_crc.h"
+#endif /* HAL_CRC_MODULE_ENABLED */
+
+#ifdef HAL_CRYP_MODULE_ENABLED
+  #include "stm32l0xx_hal_cryp.h"
+#endif /* HAL_CRYP_MODULE_ENABLED */
+
+#ifdef HAL_DAC_MODULE_ENABLED
+  #include "stm32l0xx_hal_dac.h"
+#endif /* HAL_DAC_MODULE_ENABLED */
+
+#ifdef HAL_FIREWALL_MODULE_ENABLED
+  #include "stm32l0xx_hal_firewall.h"
+#endif /* HAL_FIREWALL_MODULE_ENABLED */
+
+#ifdef HAL_FLASH_MODULE_ENABLED
+  #include "stm32l0xx_hal_flash.h"
+#endif /* HAL_FLASH_MODULE_ENABLED */
+ 
+#ifdef HAL_I2C_MODULE_ENABLED
+ #include "stm32l0xx_hal_i2c.h"
+#endif /* HAL_I2C_MODULE_ENABLED */
+
+#ifdef HAL_I2S_MODULE_ENABLED
+ #include "stm32l0xx_hal_i2s.h"
+#endif /* HAL_I2S_MODULE_ENABLED */
+
+#ifdef HAL_IWDG_MODULE_ENABLED
+ #include "stm32l0xx_hal_iwdg.h"
+#endif /* HAL_IWDG_MODULE_ENABLED */
+
+#ifdef HAL_LCD_MODULE_ENABLED
+ #include "stm32l0xx_hal_lcd.h"
+#endif /* HAL_LCD_MODULE_ENABLED */
+
+#ifdef HAL_LPTIM_MODULE_ENABLED
+#include "stm32l0xx_hal_lptim.h"
+#endif /* HAL_LPTIM_MODULE_ENABLED */
+   
+#ifdef HAL_PWR_MODULE_ENABLED
+ #include "stm32l0xx_hal_pwr.h"
+#endif /* HAL_PWR_MODULE_ENABLED */
+
+#ifdef HAL_RNG_MODULE_ENABLED
+ #include "stm32l0xx_hal_rng.h"
+#endif /* HAL_RNG_MODULE_ENABLED */
+
+#ifdef HAL_RTC_MODULE_ENABLED
+ #include "stm32l0xx_hal_rtc.h"
+#endif /* HAL_RTC_MODULE_ENABLED */
+
+#ifdef HAL_SPI_MODULE_ENABLED
+ #include "stm32l0xx_hal_spi.h"
+#endif /* HAL_SPI_MODULE_ENABLED */
+
+#ifdef HAL_TIM_MODULE_ENABLED
+ #include "stm32l0xx_hal_tim.h"
+#endif /* HAL_TIM_MODULE_ENABLED */
+
+#ifdef HAL_TSC_MODULE_ENABLED
+ #include "stm32l0xx_hal_tsc.h"
+#endif /* HAL_TSC_MODULE_ENABLED */
+
+#ifdef HAL_UART_MODULE_ENABLED
+ #include "stm32l0xx_hal_uart.h"
+#endif /* HAL_UART_MODULE_ENABLED */
+
+#ifdef HAL_USART_MODULE_ENABLED
+ #include "stm32l0xx_hal_usart.h"
+#endif /* HAL_USART_MODULE_ENABLED */
+
+#ifdef HAL_IRDA_MODULE_ENABLED
+ #include "stm32l0xx_hal_irda.h"
+#endif /* HAL_IRDA_MODULE_ENABLED */
+
+#ifdef HAL_SMARTCARD_MODULE_ENABLED
+ #include "stm32l0xx_hal_smartcard.h"
+#endif /* HAL_SMARTCARD_MODULE_ENABLED */
+
+#ifdef HAL_SMBUS_MODULE_ENABLED
+ #include "stm32l0xx_hal_smbus.h"
+#endif /* HAL_SMBUS_MODULE_ENABLED */
+
+#ifdef HAL_WWDG_MODULE_ENABLED
+ #include "stm32l0xx_hal_wwdg.h"
+#endif /* HAL_WWDG_MODULE_ENABLED */
+
+#ifdef HAL_PCD_MODULE_ENABLED
+ #include "stm32l0xx_hal_pcd.h"
+#endif /* HAL_PCD_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((uint8_t *)__FILE__, __LINE__))
+/* Exported functions ------------------------------------------------------- */
+  void assert_failed(uint8_t* file, uint32_t line);
+#else
+  #define assert_param(expr) ((void)0U)
+#endif /* USE_FULL_ASSERT */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __STM32L0xx_HAL_CONF_H */
+ 
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
diff --git a/hw/bsp/b-l072z-lrwan1/pkg.yml b/hw/bsp/b-l072z-lrwan1/pkg.yml
new file mode 100644
index 0000000..eb3fca9
--- /dev/null
+++ b/hw/bsp/b-l072z-lrwan1/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/b-l072z-lrwan1
+pkg.type: bsp
+pkg.description: BSP definition for the B-L072Z-LRWAN1 board
+pkg.author: "Apache Mynewt <de...@mynewt.apache.org>"
+pkg.homepage: "http://mynewt.apache.org/"
+pkg.keywords:
+    - stm32
+    - stm32l0
+    - SX1276
+
+pkg.cflags:
+    - -DSTM32L072xx
+
+pkg.deps:
+    - hw/mcu/stm/stm32l0xx
+    - libc/baselibc
+
+pkg.deps.UART_0:
+    - hw/drivers/uart/uart_hal
+pkg.deps.UART_1:
+    - hw/drivers/uart/uart_hal
+
+pkg.deps.LORA_NODE:
+    - hw/drivers/lora/sx1276
diff --git a/hw/bsp/b-l072z-lrwan1/src/arch/cortex_m0/startup_stm32l072xx.s b/hw/bsp/b-l072z-lrwan1/src/arch/cortex_m0/startup_stm32l072xx.s
new file mode 100644
index 0000000..0d8bb94
--- /dev/null
+++ b/hw/bsp/b-l072z-lrwan1/src/arch/cortex_m0/startup_stm32l072xx.s
@@ -0,0 +1,313 @@
+/**
+  ******************************************************************************
+  * @file      startup_stm32l072xx.s
+  * @author    MCD Application Team
+  * @brief     STM32L072xx Devices vector table for Atollic TrueSTUDIO toolchain.
+  *            This module performs:
+  *                - Set the initial SP
+  *                - Set the initial PC == Reset_Handler,
+  *                - Set the vector table entries with the exceptions ISR address
+  *                - Branches to main in the C library (which eventually
+  *                  calls main()).
+  *            After Reset the Cortex-M0+ processor is in Thread mode,
+  *            priority is Privileged, and the Stack is set to Main.
+  ******************************************************************************
+  *
+  * 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-m0plus
+  .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
+
+  .section  .text.Reset_Handler
+  .weak  Reset_Handler
+  .type  Reset_Handler, %function
+Reset_Handler:
+   ldr   r0, =_estack
+   mov   sp, r0          /* 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]
+  adds r2, 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]
+  adds  r2, 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
+
+LoopForever:
+    b LoopForever
+
+.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 M0.  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  0
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  SVC_Handler
+  .word  0
+  .word  0
+  .word  PendSV_Handler
+  .word  SysTick_Handler
+  .word  WWDG_IRQHandler                   /* Window WatchDog              */
+  .word  PVD_IRQHandler                    /* PVD through EXTI Line detection */
+  .word  RTC_IRQHandler                    /* RTC through the EXTI line     */
+  .word  FLASH_IRQHandler                  /* FLASH                        */
+  .word  RCC_CRS_IRQHandler                /* RCC and CRS                  */
+  .word  EXTI0_1_IRQHandler                /* EXTI Line 0 and 1            */
+  .word  EXTI2_3_IRQHandler                /* EXTI Line 2 and 3            */
+  .word  EXTI4_15_IRQHandler               /* EXTI Line 4 to 15            */
+  .word  TSC_IRQHandler                    /* TSC                           */
+  .word  DMA1_Channel1_IRQHandler          /* DMA1 Channel 1               */
+  .word  DMA1_Channel2_3_IRQHandler        /* DMA1 Channel 2 and Channel 3 */
+  .word  DMA1_Channel4_5_6_7_IRQHandler    /* DMA1 Channel 4, Channel 5, Channel 6 and Channel 7*/
+  .word  ADC1_COMP_IRQHandler              /* ADC1, COMP1 and COMP2        */
+  .word  LPTIM1_IRQHandler                 /* LPTIM1                       */
+  .word  USART4_5_IRQHandler               /* USART4 and USART 5           */
+  .word  TIM2_IRQHandler                   /* TIM2                         */
+  .word  TIM3_IRQHandler                   /* TIM3                         */
+  .word  TIM6_DAC_IRQHandler               /* TIM6 and DAC                 */
+  .word  TIM7_IRQHandler                   /* TIM7                         */
+  .word  0                                 /* Reserved                     */
+  .word  TIM21_IRQHandler                  /* TIM21                        */
+  .word  I2C3_IRQHandler                   /* I2C3                         */
+  .word  TIM22_IRQHandler                  /* TIM22                        */
+  .word  I2C1_IRQHandler                   /* I2C1                         */
+  .word  I2C2_IRQHandler                   /* I2C2                         */
+  .word  SPI1_IRQHandler                   /* SPI1                         */
+  .word  SPI2_IRQHandler                   /* SPI2                         */
+  .word  USART1_IRQHandler                 /* USART1                       */
+  .word  USART2_IRQHandler                 /* USART2                       */
+  .word  RNG_LPUART1_IRQHandler            /* RNG and LPUART1              */
+  .word  0                                 /* Reserved                     */
+  .word  USB_IRQHandler                    /* USB                          */
+
+/*******************************************************************************
+*
+* 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      SVC_Handler
+   .thumb_set SVC_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_IRQHandler
+   .thumb_set PVD_IRQHandler,Default_Handler
+
+   .weak      RTC_IRQHandler
+   .thumb_set RTC_IRQHandler,Default_Handler
+
+   .weak      FLASH_IRQHandler
+   .thumb_set FLASH_IRQHandler,Default_Handler
+
+   .weak      RCC_CRS_IRQHandler
+   .thumb_set RCC_CRS_IRQHandler,Default_Handler
+
+   .weak      EXTI0_1_IRQHandler
+   .thumb_set EXTI0_1_IRQHandler,Default_Handler
+
+   .weak      EXTI2_3_IRQHandler
+   .thumb_set EXTI2_3_IRQHandler,Default_Handler
+
+   .weak      EXTI4_15_IRQHandler
+   .thumb_set EXTI4_15_IRQHandler,Default_Handler
+
+   .weak      TSC_IRQHandler
+   .thumb_set TSC_IRQHandler,Default_Handler
+
+   .weak      DMA1_Channel1_IRQHandler
+   .thumb_set DMA1_Channel1_IRQHandler,Default_Handler
+
+   .weak      DMA1_Channel2_3_IRQHandler
+   .thumb_set DMA1_Channel2_3_IRQHandler,Default_Handler
+
+   .weak      DMA1_Channel4_5_6_7_IRQHandler
+   .thumb_set DMA1_Channel4_5_6_7_IRQHandler,Default_Handler
+
+   .weak      ADC1_COMP_IRQHandler
+   .thumb_set ADC1_COMP_IRQHandler,Default_Handler
+
+   .weak      LPTIM1_IRQHandler
+   .thumb_set LPTIM1_IRQHandler,Default_Handler
+
+   .weak      USART4_5_IRQHandler
+   .thumb_set USART4_5_IRQHandler,Default_Handler
+
+   .weak      TIM2_IRQHandler
+   .thumb_set TIM2_IRQHandler,Default_Handler
+
+   .weak      TIM3_IRQHandler
+   .thumb_set TIM3_IRQHandler,Default_Handler
+
+   .weak      TIM6_DAC_IRQHandler
+   .thumb_set TIM6_DAC_IRQHandler,Default_Handler
+
+   .weak      TIM7_IRQHandler
+   .thumb_set TIM7_IRQHandler,Default_Handler
+
+   .weak      TIM21_IRQHandler
+   .thumb_set TIM21_IRQHandler,Default_Handler
+
+   .weak      I2C3_IRQHandler
+   .thumb_set I2C3_IRQHandler,Default_Handler
+
+   .weak      TIM22_IRQHandler
+   .thumb_set TIM22_IRQHandler,Default_Handler
+
+   .weak      I2C1_IRQHandler
+   .thumb_set I2C1_IRQHandler,Default_Handler
+
+   .weak      I2C2_IRQHandler
+   .thumb_set I2C2_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      RNG_LPUART1_IRQHandler
+   .thumb_set RNG_LPUART1_IRQHandler,Default_Handler
+
+   .weak      USB_IRQHandler
+   .thumb_set USB_IRQHandler,Default_Handler
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
diff --git a/hw/bsp/b-l072z-lrwan1/src/hal_bsp.c b/hw/bsp/b-l072z-lrwan1/src/hal_bsp.c
new file mode 100644
index 0000000..16d6aab
--- /dev/null
+++ b/hw/bsp/b-l072z-lrwan1/src/hal_bsp.c
@@ -0,0 +1,171 @@
+/*
+ * 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_1_MASTER) || MYNEWT_VAL(SPI_1_SLAVE)
+#include <hal/hal_spi.h>
+#endif
+
+#include <stm32l072xx.h>
+#include <stm32l0xx_hal_rcc.h>
+#include <stm32l0xx_hal_pwr.h>
+#include <stm32l0xx_hal_flash.h>
+#include <stm32l0xx_hal_gpio_ex.h>
+#include <mcu/stm32l0_bsp.h>
+#include "mcu/stm32l0xx_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->APB1ENR,
+        .suc_rcc_dev = RCC_APB1ENR_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_AF4_USART2,
+        .suc_irqn = USART2_IRQn
+    }
+};
+#endif
+
+#if MYNEWT_VAL(I2C_0)
+static struct stm32_hal_i2c_cfg i2c_cfg0 = {
+    .hic_i2c = I2C1,
+    .hic_rcc_reg = &RCC->APB1ENR,
+    .hic_rcc_dev = RCC_APB1ENR_I2C1EN,
+    .hic_pin_sda = MCU_GPIO_PORTB(9),     /* PB9 on CN3 */
+    .hic_pin_scl = MCU_GPIO_PORTB(8),     /* PB8 on CN3 */
+    .hic_pin_af = GPIO_AF4_I2C1,
+    .hic_10bit = 0,
+    .hic_timingr = 0x10420F13,      /* FIXME: 100KHz at 8MHz of SysCoreClock */
+};
+#endif
+
+#if MYNEWT_VAL(SPI_1_SLAVE) || MYNEWT_VAL(SPI_1_MASTER)
+struct stm32_hal_spi_cfg spi1_cfg = {
+    .ss_pin   = MCU_GPIO_PORTB(12),
+    .sck_pin  = MCU_GPIO_PORTB(13),
+    .miso_pin = MCU_GPIO_PORTB(14),
+    .mosi_pin = MCU_GPIO_PORTB(15),
+    .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 &stm32l0_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, TIM21);
+#endif
+
+#if MYNEWT_VAL(SPI_1_MASTER)
+    rc = hal_spi_init(1, &spi1_cfg, HAL_SPI_TYPE_MASTER);
+    assert(rc == 0);
+#endif
+
+#if MYNEWT_VAL(SPI_1_SLAVE)
+    rc = hal_spi_init(1, &spi1_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/b-l072z-lrwan1/src/system_stm32l0xx.c b/hw/bsp/b-l072z-lrwan1/src/system_stm32l0xx.c
new file mode 100644
index 0000000..b848154
--- /dev/null
+++ b/hw/bsp/b-l072z-lrwan1/src/system_stm32l0xx.c
@@ -0,0 +1,282 @@
+/**
+  ******************************************************************************
+  * @file    system_stm32l0xx.c
+  * @author  MCD Application Team
+  * @brief   CMSIS Cortex-M0+ 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_stm32l0xx.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.
+  *
+  *
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT(c) 2016 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 stm32l0xx_system
+  * @{
+  */
+
+/** @addtogroup STM32L0xx_System_Private_Includes
+  * @{
+  */
+
+#include "stm32l0xx.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)2000000) /*!< 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 STM32L0xx_System_Private_TypesDefinitions
+  * @{
+  */
+
+/**
+  * @}
+  */
+
+/** @addtogroup STM32L0xx_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 STM32L0xx_System_Private_Macros
+  * @{
+  */
+
+/**
+  * @}
+  */
+
+/** @addtogroup STM32L0xx_System_Private_Variables
+  * @{
+  */
+  /* This 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 = 2000000;
+  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 uint8_t PLLMulTable[9] = {3, 4, 6, 8, 12, 16, 24, 32, 48};
+
+/**
+  * @}
+  */
+
+/** @addtogroup STM32L0xx_System_Private_FunctionPrototypes
+  * @{
+  */
+
+/**
+  * @}
+  */
+
+/** @addtogroup STM32L0xx_System_Private_Functions
+  * @{
+  */
+
+/**
+  * @brief  Setup the microcontroller system.
+  * @param  None
+  * @retval None
+  */
+void SystemInit (void)
+{
+/*!< Set MSION bit */
+  RCC->CR |= (uint32_t)0x00000100;
+
+  /*!< Reset SW[1:0], HPRE[3:0], PPRE1[2:0], PPRE2[2:0], MCOSEL[2:0] and MCOPRE[2:0] bits */
+  RCC->CFGR &= (uint32_t) 0x88FF400C;
+
+  /*!< Reset HSION, HSIDIVEN, HSEON, CSSON and PLLON bits */
+  RCC->CR &= (uint32_t)0xFEF6FFF6;
+
+  /*!< Reset HSI48ON  bit */
+  RCC->CRRCR &= (uint32_t)0xFFFFFFFE;
+
+  /*!< Reset HSEBYP bit */
+  RCC->CR &= (uint32_t)0xFFFBFFFF;
+
+  /*!< Reset PLLSRC, PLLMUL[3:0] and PLLDIV[1:0] bits */
+  RCC->CFGR &= (uint32_t)0xFF02FFFF;
+
+  /*!< Disable all interrupts */
+  RCC->CIER = 0x00000000;
+
+  /* Relocate the vector table */
+  NVIC_Relocate();
+}
+
+/**
+  * @brief  Update SystemCoreClock 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 as defined by the MSI range.
+  *
+  *           - 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(*) multiplied/divided by the PLL factors.
+  *
+  *         (*) HSI_VALUE is a constant defined in stm32l0xx_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 stm32l0xx_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, pllmul = 0, plldiv = 0, pllsource = 0, msirange = 0;
+
+  /* Get SYSCLK source -------------------------------------------------------*/
+  tmp = RCC->CFGR & RCC_CFGR_SWS;
+
+  switch (tmp)
+  {
+    case 0x00:  /* MSI used as system clock */
+      msirange = (RCC->ICSCR & RCC_ICSCR_MSIRANGE) >> 13;
+      SystemCoreClock = (32768 * (1 << (msirange + 1)));
+      break;
+    case 0x04:  /* HSI used as system clock */
+      SystemCoreClock = HSI_VALUE;
+      break;
+    case 0x08:  /* HSE used as system clock */
+      SystemCoreClock = HSE_VALUE;
+      break;
+    case 0x0C:  /* PLL used as system clock */
+      /* Get PLL clock source and multiplication factor ----------------------*/
+      pllmul = RCC->CFGR & RCC_CFGR_PLLMUL;
+      plldiv = RCC->CFGR & RCC_CFGR_PLLDIV;
+      pllmul = PLLMulTable[(pllmul >> 18)];
+      plldiv = (plldiv >> 22) + 1;
+
+      pllsource = RCC->CFGR & RCC_CFGR_PLLSRC;
+
+      if (pllsource == 0x00)
+      {
+        /* HSI oscillator clock selected as PLL clock entry */
+        SystemCoreClock = (((HSI_VALUE) * pllmul) / plldiv);
+      }
+      else
+      {
+        /* HSE selected as PLL clock entry */
+        SystemCoreClock = (((HSE_VALUE) * pllmul) / plldiv);
+      }
+      break;
+    default: /* MSI used as system clock */
+      msirange = (RCC->ICSCR & RCC_ICSCR_MSIRANGE) >> 13;
+      SystemCoreClock = (32768 * (1 << (msirange + 1)));
+      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/b-l072z-lrwan1/syscfg.yml b/hw/bsp/b-l072z-lrwan1/syscfg.yml
new file mode 100644
index 0000000..e69c957
--- /dev/null
+++ b/hw/bsp/b-l072z-lrwan1/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