You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@mynewt.apache.org by vi...@apache.org on 2017/02/23 22:33:24 UTC
[30/50] incubator-mynewt-core git commit: BSP for BBC micro:bit. See
http://tech.microbit.org/hardware.
BSP for BBC micro:bit. See http://tech.microbit.org/hardware.
Project: http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/repo
Commit: http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/commit/5f5e19ff
Tree: http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/tree/5f5e19ff
Diff: http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/diff/5f5e19ff
Branch: refs/heads/sensors_branch
Commit: 5f5e19ff8e78a819b3ee0c4422dbbd915af984c6
Parents: 868f79d
Author: Marko Kiiskila <ma...@runtime.io>
Authored: Fri Feb 17 17:39:01 2017 -0800
Committer: Marko Kiiskila <ma...@runtime.io>
Committed: Fri Feb 17 17:40:58 2017 -0800
----------------------------------------------------------------------
README.md | 1 +
hw/bsp/bbc_microbit/boot-nrf51xxac.ld | 27 ++
hw/bsp/bbc_microbit/bsp.yml | 62 ++++
hw/bsp/bbc_microbit/include/bsp/bsp.h | 50 ++++
hw/bsp/bbc_microbit/include/bsp/cmsis_nvic.h | 30 ++
hw/bsp/bbc_microbit/microbit_debug.sh | 37 +++
hw/bsp/bbc_microbit/microbit_download.sh | 42 +++
hw/bsp/bbc_microbit/nrf51xxac.ld | 30 ++
hw/bsp/bbc_microbit/pkg.yml | 88 ++++++
hw/bsp/bbc_microbit/split-microbit.ld | 185 ++++++++++++
.../src/arch/cortex_m0/gcc_startup_nrf51.s | 280 +++++++++++++++++++
.../arch/cortex_m0/gcc_startup_nrf51_split.s | 182 ++++++++++++
hw/bsp/bbc_microbit/src/hal_bsp.c | 176 ++++++++++++
hw/bsp/bbc_microbit/src/sbrk.c | 57 ++++
hw/bsp/bbc_microbit/syscfg.yml | 84 ++++++
15 files changed, 1331 insertions(+)
----------------------------------------------------------------------
http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/5f5e19ff/README.md
----------------------------------------------------------------------
diff --git a/README.md b/README.md
index 29c7beb..44f6b74 100644
--- a/README.md
+++ b/README.md
@@ -45,6 +45,7 @@ It currently supports the following hardware platforms:
* Arduino Primo NRF52 (Cortex-M4)
* NUCLEO-F401RE (Cortex-M4)
* FRDM-K64F from NXP (Cortex-M4)
+* BBC micro:bit (Nordic nrf51822; Cortex-M0)
Apache Mynewt uses the
[Newt](https://www.github.com/apache/incubator-mynewt-newt) build and package
http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/5f5e19ff/hw/bsp/bbc_microbit/boot-nrf51xxac.ld
----------------------------------------------------------------------
diff --git a/hw/bsp/bbc_microbit/boot-nrf51xxac.ld b/hw/bsp/bbc_microbit/boot-nrf51xxac.ld
new file mode 100755
index 0000000..9285807
--- /dev/null
+++ b/hw/bsp/bbc_microbit/boot-nrf51xxac.ld
@@ -0,0 +1,27 @@
+/* Linker script for Nordic Semiconductor nRF5 devices
+ *
+ * Version: Sourcery G++ 4.5-1
+ * Support: https://support.codesourcery.com/GNUToolchain/
+ *
+ * Copyright (c) 2007, 2008, 2009, 2010 CodeSourcery, Inc.
+ *
+ * The authors hereby grant permission to use, copy, modify, distribute,
+ * and license this software and its documentation for any purpose, provided
+ * that existing copyright notices are retained in all copies and that this
+ * notice is included verbatim in any distributions. No written agreement,
+ * license, or royalty fee is required for any of the authorized uses.
+ * Modifications to this software may be copyrighted by their authors
+ * and need not follow the licensing terms described here, provided that
+ * the new terms are clearly indicated on the first page of each file where
+ * they apply.
+ */
+MEMORY
+{
+ FLASH (rx) : ORIGIN = 0x00000000, LENGTH = 0x4000
+ RAM (rwx) : ORIGIN = 0x20000000, LENGTH = 0x4000
+}
+
+/* The bootloader does not contain an image header */
+_imghdr_size = 0x0;
+
+
http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/5f5e19ff/hw/bsp/bbc_microbit/bsp.yml
----------------------------------------------------------------------
diff --git a/hw/bsp/bbc_microbit/bsp.yml b/hw/bsp/bbc_microbit/bsp.yml
new file mode 100644
index 0000000..ee9bdf1
--- /dev/null
+++ b/hw/bsp/bbc_microbit/bsp.yml
@@ -0,0 +1,62 @@
+#
+# 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/bbc_microbit/nrf51xxac.ld"
+ - "hw/mcu/nordic/nrf51xxx/nrf51.ld"
+bsp.linkerscript.BOOT_LOADER.OVERWRITE:
+ - "hw/bsp/bbc_microbit/boot-nrf51xxac.ld"
+ - "hw/mcu/nordic/nrf51xxx/nrf51.ld"
+bsp.part2linkerscript: "hw/bsp/bbc_microbit/split-nrf51dk.ld"
+bsp.downloadscript: "hw/bsp/bbc_microbit/microbit_download.sh"
+bsp.debugscript: "hw/bsp/bbc_microbit/microbit_debug.sh"
+
+bsp.flash_map:
+ areas:
+ # System areas.
+ FLASH_AREA_BOOTLOADER:
+ device: 0
+ offset: 0x00000000
+ size: 16kB
+ FLASH_AREA_IMAGE_0:
+ device: 0
+ offset: 0x00008000
+ size: 110kB
+ FLASH_AREA_IMAGE_1:
+ device: 0
+ offset: 0x00023800
+ size: 110kB
+ FLASH_AREA_IMAGE_SCRATCH:
+ device: 0
+ offset: 0x0003f000
+ size: 2kB
+
+ # User areas.
+ FLASH_AREA_REBOOT_LOG:
+ user_id: 0
+ device: 0
+ offset: 0x00004000
+ size: 16kB
+ FLASH_AREA_NFFS:
+ user_id: 1
+ device: 0
+ offset: 0x0003f800
+ size: 2kB
http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/5f5e19ff/hw/bsp/bbc_microbit/include/bsp/bsp.h
----------------------------------------------------------------------
diff --git a/hw/bsp/bbc_microbit/include/bsp/bsp.h b/hw/bsp/bbc_microbit/include/bsp/bsp.h
new file mode 100644
index 0000000..dc7b41e
--- /dev/null
+++ b/hw/bsp/bbc_microbit/include/bsp/bsp.h
@@ -0,0 +1,50 @@
+/*
+ * 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
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "inttypes.h"
+/* Define special stackos sections */
+#define sec_data_core __attribute__((section(".data.core")))
+#define sec_bss_core __attribute__((section(".bss.core")))
+
+/* More convenient section placement macros. */
+#define bssnz_t
+
+extern uint8_t _ram_start;
+#define RAM_SIZE 0x4000
+
+/* LED pins */
+#define LED_BLINK_PIN (-1)
+
+/* UART info */
+#define CONSOLE_UART "uart0"
+
+#define NFFS_AREA_MAX (8)
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* H_BSP_H */
http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/5f5e19ff/hw/bsp/bbc_microbit/include/bsp/cmsis_nvic.h
----------------------------------------------------------------------
diff --git a/hw/bsp/bbc_microbit/include/bsp/cmsis_nvic.h b/hw/bsp/bbc_microbit/include/bsp/cmsis_nvic.h
new file mode 100644
index 0000000..5d2ae83
--- /dev/null
+++ b/hw/bsp/bbc_microbit/include/bsp/cmsis_nvic.h
@@ -0,0 +1,30 @@
+/* mbed Microcontroller Library - cmsis_nvic
+ * Copyright (c) 2009-2011 ARM Limited. All rights reserved.
+ *
+ * CMSIS-style functionality to support dynamic vectors
+ */
+
+#ifndef MBED_CMSIS_NVIC_H
+#define MBED_CMSIS_NVIC_H
+
+#include <stdint.h>
+
+/* NOTE: the nrf51 SoC has 26 interrupts. */
+#define NVIC_USER_IRQ_OFFSET 16
+#define NVIC_NUM_VECTORS (NVIC_USER_IRQ_OFFSET + 26)
+
+#include "nrf51.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void NVIC_Relocate(void);
+void NVIC_SetVector(IRQn_Type IRQn, uint32_t vector);
+uint32_t NVIC_GetVector(IRQn_Type IRQn);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/5f5e19ff/hw/bsp/bbc_microbit/microbit_debug.sh
----------------------------------------------------------------------
diff --git a/hw/bsp/bbc_microbit/microbit_debug.sh b/hw/bsp/bbc_microbit/microbit_debug.sh
new file mode 100755
index 0000000..7f4d2d5
--- /dev/null
+++ b/hw/bsp/bbc_microbit/microbit_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 interface/cmsis-dap.cfg -f target/nrf51.cfg"
+# Exit openocd when gdb detaches.
+EXTRA_JTAG_CMD="$EXTRA_JTAG_CMD; nrf51.cpu configure -event gdb-detach {if {[nrf51.cpu curstate] eq \"halted\"} resume;shutdown}"
+
+openocd_debug
http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/5f5e19ff/hw/bsp/bbc_microbit/microbit_download.sh
----------------------------------------------------------------------
diff --git a/hw/bsp/bbc_microbit/microbit_download.sh b/hw/bsp/bbc_microbit/microbit_download.sh
new file mode 100755
index 0000000..1f1d5de
--- /dev/null
+++ b/hw/bsp/bbc_microbit/microbit_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
+
+. $CORE_PATH/hw/scripts/openocd.sh
+
+CFG="-f interface/cmsis-dap.cfg -f target/nrf51.cfg"
+
+if [ "$MFG_IMAGE" ]; then
+ FLASH_OFFSET=0
+fi
+
+common_file_to_load
+openocd_load
+openocd_reset_run
http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/5f5e19ff/hw/bsp/bbc_microbit/nrf51xxac.ld
----------------------------------------------------------------------
diff --git a/hw/bsp/bbc_microbit/nrf51xxac.ld b/hw/bsp/bbc_microbit/nrf51xxac.ld
new file mode 100755
index 0000000..2604a17
--- /dev/null
+++ b/hw/bsp/bbc_microbit/nrf51xxac.ld
@@ -0,0 +1,30 @@
+/*
+ * 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.
+ */
+
+/*
+ * 16kb of SRAM
+ */
+MEMORY
+{
+ FLASH (rx) : ORIGIN = 0x00008000, LENGTH = 0x1b800
+ RAM (rwx) : ORIGIN = 0x20000000, LENGTH = 0x4000
+}
+
+/* This linker script is used for images and thus contains an image header */
+_imghdr_size = 0x20;
http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/5f5e19ff/hw/bsp/bbc_microbit/pkg.yml
----------------------------------------------------------------------
diff --git a/hw/bsp/bbc_microbit/pkg.yml b/hw/bsp/bbc_microbit/pkg.yml
new file mode 100644
index 0000000..07de50d
--- /dev/null
+++ b/hw/bsp/bbc_microbit/pkg.yml
@@ -0,0 +1,88 @@
+#
+# 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/bbc_microbit
+pkg.type: bsp
+pkg.description: BSP definition for BBC Microbit.
+pkg.author: "Apache Mynewt <de...@mynewt.incubator.apache.org>"
+pkg.homepage: "http://mynewt.apache.org/"
+pkg.keywords:
+ - nrf51
+ - microbit
+
+pkg.cflags:
+ # Nordic SDK files require these defines.
+ - '-DADC_ENABLED=1'
+ - '-DCLOCK_ENABLED=1'
+ - '-DCOMP_ENABLED=0'
+ - '-DEGU_ENABLED=0'
+ - '-DGPIOTE_ENABLED=1'
+ - '-DI2S_ENABLED=0'
+ - '-DLPCOMP_ENABLED=1'
+ - '-DNRF51'
+ - '-DPDM_ENABLED=0'
+ - '-DPERIPHERAL_RESOURCE_SHARING_ENABLED=1'
+ - '-DPWM0_ENABLED=1'
+ - '-DPWM1_ENABLED=0'
+ - '-DPWM2_ENABLED=0'
+ - '-DQDEC_ENABLED=1'
+ - '-DRNG_ENABLED=1'
+ - '-DRTC0_ENABLED=0'
+ - '-DRTC1_ENABLED=0'
+ - '-DRTC2_ENABLED=0'
+ - '-DSAADC_ENABLED=0'
+ - '-DSPI0_CONFIG_MISO_PIN=28'
+ - '-DSPI0_CONFIG_MOSI_PIN=25'
+ - '-DSPI0_CONFIG_SCK_PIN=29'
+ - '-DSPI0_ENABLED=1'
+ - '-DSPI0_USE_EASY_DMA=0'
+ - '-DSPI1_ENABLED=0'
+ - '-DSPI2_ENABLED=0'
+ - '-DSPIS0_CONFIG_MISO_PIN=4'
+ - '-DSPIS0_CONFIG_MOSI_PIN=3'
+ - '-DSPIS0_CONFIG_SCK_PIN=2'
+ - '-DSPIS0_ENABLED=0'
+ - '-DSPIS1_CONFIG_MISO_PIN=28'
+ - '-DSPIS1_CONFIG_MOSI_PIN=25'
+ - '-DSPIS1_CONFIG_SCK_PIN=29'
+ - '-DSPIS1_ENABLED=1'
+ - '-DSPIS2_ENABLED=0'
+ - '-DTIMER0_ENABLED=1'
+ - '-DTIMER1_ENABLED=0'
+ - '-DTIMER2_ENABLED=0'
+ - '-DTIMER3_ENABLED=0'
+ - '-DTIMER4_ENABLED=0'
+ - '-DTWI0_CONFIG_SCL=0'
+ - '-DTWI0_CONFIG_SDA=1'
+ - '-DTWI0_ENABLED=1'
+ - '-DTWI1_ENABLED=0'
+ - '-DTWIS0_ENABLED=0'
+ - '-DTWIS1_ENABLED=0'
+ - '-DUART0_ENABLED=1'
+ - '-DWDT_ENABLED=1'
+
+pkg.deps:
+ - hw/mcu/nordic/nrf51xxx
+ - libc/baselibc
+
+pkg.deps.BLE_DEVICE:
+ - hw/drivers/nimble/nrf51
+
+pkg.deps.UART_0:
+ - hw/drivers/uart/uart_hal
http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/5f5e19ff/hw/bsp/bbc_microbit/split-microbit.ld
----------------------------------------------------------------------
diff --git a/hw/bsp/bbc_microbit/split-microbit.ld b/hw/bsp/bbc_microbit/split-microbit.ld
new file mode 100755
index 0000000..9c051f8
--- /dev/null
+++ b/hw/bsp/bbc_microbit/split-microbit.ld
@@ -0,0 +1,185 @@
+/* Linker script for Nordic Semiconductor nRF5 devices
+ *
+ * Version: Sourcery G++ 4.5-1
+ * Support: https://support.codesourcery.com/GNUToolchain/
+ *
+ * Copyright (c) 2007, 2008, 2009, 2010 CodeSourcery, Inc.
+ *
+ * The authors hereby grant permission to use, copy, modify, distribute,
+ * and license this software and its documentation for any purpose, provided
+ * that existing copyright notices are retained in all copies and that this
+ * notice is included verbatim in any distributions. No written agreement,
+ * license, or royalty fee is required for any of the authorized uses.
+ * Modifications to this software may be copyrighted by their authors
+ * and need not follow the licensing terms described here, provided that
+ * the new terms are clearly indicated on the first page of each file where
+ * they apply.
+ */
+OUTPUT_FORMAT ("elf32-littlearm", "elf32-bigarm", "elf32-littlearm")
+
+MEMORY
+{
+ FLASH (rx) : ORIGIN = 0x00023800, LENGTH = 0x1b800
+ RAM (rwx) : ORIGIN = 0x20000000, LENGTH = 0x4000
+}
+
+/* Linker script to place sections and symbol values. Should be used together
+ * with other linker script that defines memory regions FLASH and RAM.
+ * It references following symbols, which must be defined in code:
+ * Reset_Handler_split : Entry of reset handler
+ *
+ * It defines following symbols, which code can use without definition:
+ * __exidx_start
+ * __exidx_end
+ * __etext
+ * __data_start__
+ * __preinit_array_start
+ * __preinit_array_end
+ * __init_array_start
+ * __init_array_end
+ * __fini_array_start
+ * __fini_array_end
+ * __data_end__
+ * __bss_start__
+ * __bss_end__
+ * __HeapBase
+ * __HeapLimit
+ * __StackLimit
+ * __StackTop
+ * __stack
+ * __bssnz_start__
+ * __bssnz_end__
+ */
+ENTRY(Reset_Handler_split)
+
+SECTIONS
+{
+ .imghdr (NOLOAD):
+ {
+ . = . + 0x20;
+ } > FLASH
+
+ .text :
+ {
+ __split_isr_vector_start = .;
+ KEEP(*(.isr_vector_split))
+ __split_isr_vector_end = .;
+ *(.text*)
+
+ KEEP(*(.init))
+ KEEP(*(.fini))
+
+ /* .ctors */
+ *crtbegin.o(.ctors)
+ *crtbegin?.o(.ctors)
+ *(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
+ *(SORT(.ctors.*))
+ *(.ctors)
+
+ /* .dtors */
+ *crtbegin.o(.dtors)
+ *crtbegin?.o(.dtors)
+ *(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
+ *(SORT(.dtors.*))
+ *(.dtors)
+
+ *(.rodata*)
+
+ *(.eh_frame*)
+ . = ALIGN(4);
+ } > FLASH
+
+
+ .ARM.extab :
+ {
+ *(.ARM.extab* .gnu.linkonce.armextab.*)
+ . = ALIGN(4);
+ } > FLASH
+
+ __exidx_start = .;
+ .ARM.exidx :
+ {
+ *(.ARM.exidx* .gnu.linkonce.armexidx.*)
+ . = ALIGN(4);
+ } > FLASH
+ __exidx_end = .;
+
+ __etext = .;
+
+ /* save RAM used by the split image. This assumes that
+ * the loader uses all the RAM up to its HeapBase */
+ .loader_ram_contents :
+ {
+ _loader_ram_start = .;
+ /* this symbol comes from the loader linker */
+ . = . + (ABSOLUTE(__HeapBase_loader) - _loader_ram_start);
+ _loader_ram_end = .;
+ } > RAM
+
+ .data :
+ {
+ __data_start__ = .;
+ *(.data*)
+
+ . = ALIGN(4);
+ /* preinit data */
+ PROVIDE_HIDDEN (__preinit_array_start = .);
+ *(.preinit_array)
+ PROVIDE_HIDDEN (__preinit_array_end = .);
+
+ . = ALIGN(4);
+ /* init data */
+ PROVIDE_HIDDEN (__init_array_start = .);
+ *(SORT(.init_array.*))
+ *(.init_array)
+ PROVIDE_HIDDEN (__init_array_end = .);
+
+
+ . = ALIGN(4);
+ /* finit data */
+ PROVIDE_HIDDEN (__fini_array_start = .);
+ *(SORT(.fini_array.*))
+ *(.fini_array)
+ PROVIDE_HIDDEN (__fini_array_end = .);
+
+ *(.jcr)
+ . = ALIGN(4);
+ /* All data end */
+ __data_end__ = .;
+ } > RAM AT > FLASH
+
+ .bss :
+ {
+ . = ALIGN(4);
+ __bss_start__ = .;
+ *(.bss*)
+ *(COMMON)
+ . = ALIGN(4);
+ __bss_end__ = .;
+ } > RAM
+
+ /* Heap starts after BSS */
+ __HeapBase = .;
+
+ /* .stack_dummy section doesn't contains any symbols. It is only
+ * used for linker to calculate size of stack sections, and assign
+ * values to stack symbols later */
+ .stack_dummy (COPY):
+ {
+ *(.stack*)
+ } > RAM
+
+ _ram_start = ORIGIN(RAM);
+
+ /* Set stack top to end of RAM, and stack limit move down by
+ * size of stack_dummy section */
+ __StackTop = ORIGIN(RAM) + LENGTH(RAM);
+ __StackLimit = __StackTop - SIZEOF(.stack_dummy);
+ PROVIDE(__stack = __StackTop);
+
+ /* Top of head is the bottom of the stack */
+ __HeapLimit = __StackLimit;
+
+ /* Check if data + heap + stack exceeds RAM limit */
+ ASSERT(__HeapBase <= __HeapLimit, "region RAM overflowed with stack")
+}
http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/5f5e19ff/hw/bsp/bbc_microbit/src/arch/cortex_m0/gcc_startup_nrf51.s
----------------------------------------------------------------------
diff --git a/hw/bsp/bbc_microbit/src/arch/cortex_m0/gcc_startup_nrf51.s b/hw/bsp/bbc_microbit/src/arch/cortex_m0/gcc_startup_nrf51.s
new file mode 100755
index 0000000..e58e8bc
--- /dev/null
+++ b/hw/bsp/bbc_microbit/src/arch/cortex_m0/gcc_startup_nrf51.s
@@ -0,0 +1,280 @@
+/*
+Copyright (c) 2015, Nordic Semiconductor ASA
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+* Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+
+* 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.
+
+* Neither the name of Nordic Semiconductor ASA 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.
+*/
+
+/*
+NOTE: Template files (including this one) are application specific and therefore
+expected to be copied into the application project folder prior to its use!
+*/
+
+ .syntax unified
+ .arch armv6-m
+
+ .section .stack
+ .align 3
+ .equ Stack_Size, 432
+ .globl __StackTop
+ .globl __StackLimit
+__StackLimit:
+ .space Stack_Size
+ .size __StackLimit, . - __StackLimit
+__StackTop:
+ .size __StackTop, . - __StackTop
+
+ .section .heap
+ .align 3
+#ifdef __HEAP_SIZE
+ .equ Heap_Size, __HEAP_SIZE
+#else
+ .equ Heap_Size, 0
+#endif
+ .globl __HeapBase
+ .globl __HeapLimit
+__HeapBase:
+ .if Heap_Size
+ .space Heap_Size
+ .endif
+ .size __HeapBase, . - __HeapBase
+__HeapLimit:
+ .size __HeapLimit, . - __HeapLimit
+
+ .section .isr_vector
+ .align 2
+ .globl __isr_vector
+__isr_vector:
+ .long __StackTop /* Top of Stack */
+ .long Reset_Handler /* Reset Handler */
+ .long _NMI_Handler /* NMI Handler */
+ .long _HardFault_Handler /* Hard Fault Handler */
+ .long 0 /* Reserved */
+ .long 0 /* Reserved */
+ .long 0 /* Reserved */
+ .long 0 /* Reserved */
+ .long 0 /* Reserved */
+ .long 0 /* Reserved */
+ .long 0 /* Reserved */
+ .long _SVC_Handler /* SVCall Handler */
+ .long 0 /* Reserved */
+ .long 0 /* Reserved */
+ .long _PendSV_Handler /* PendSV Handler */
+ .long _SysTick_Handler /* SysTick Handler */
+
+ /* External Interrupts */
+ .long _POWER_CLOCK_IRQHandler
+ .long _RADIO_IRQHandler
+ .long _UART0_IRQHandler
+ .long _SPI0_TWI0_IRQHandler
+ .long _SPI1_TWI1_IRQHandler
+ .long 0 /*Reserved */
+ .long _GPIOTE_IRQHandler
+ .long _ADC_IRQHandler
+ .long _TIMER0_IRQHandler
+ .long _TIMER1_IRQHandler
+ .long _TIMER2_IRQHandler
+ .long _RTC0_IRQHandler
+ .long _TEMP_IRQHandler
+ .long _RNG_IRQHandler
+ .long _ECB_IRQHandler
+ .long _CCM_AAR_IRQHandler
+ .long _WDT_IRQHandler
+ .long _RTC1_IRQHandler
+ .long _QDEC_IRQHandler
+ .long _LPCOMP_IRQHandler
+ .long _SWI0_IRQHandler
+ .long _SWI1_IRQHandler
+ .long _SWI2_IRQHandler
+ .long _SWI3_IRQHandler
+ .long _SWI4_IRQHandler
+ .long _SWI5_IRQHandler
+ .long 0 /*Reserved */
+ .long 0 /*Reserved */
+ .long 0 /*Reserved */
+ .long 0 /*Reserved */
+ .long 0 /*Reserved */
+ .long 0 /*Reserved */
+
+ .size __isr_vector, . - __isr_vector
+
+/* Reset Handler */
+
+ .equ NRF_POWER_RAMON_ADDRESS, 0x40000524
+ .equ NRF_POWER_RAMONB_ADDRESS, 0x40000554
+ .equ NRF_POWER_RAMONx_RAMxON_ONMODE_Msk, 0x3
+
+ .text
+ .thumb
+ .thumb_func
+ .align 1
+ .globl Reset_Handler
+ .type Reset_Handler, %function
+Reset_Handler:
+ .fnstart
+
+/* Make sure ALL RAM banks are powered on */
+ MOVS R1, #NRF_POWER_RAMONx_RAMxON_ONMODE_Msk
+
+ LDR R0, =NRF_POWER_RAMON_ADDRESS
+ LDR R2, [R0]
+ ORRS R2, R1
+ STR R2, [R0]
+
+ LDR R0, =NRF_POWER_RAMONB_ADDRESS
+ LDR R2, [R0]
+ ORRS R2, R1
+ STR R2, [R0]
+
+ /* Clear BSS */
+ subs r0, r0
+ ldr r2, =__bss_start__
+ ldr r3, =__bss_end__
+.bss_zero_loop:
+ cmp r2, r3
+ bhs .data_copy_loop
+ stmia r2!, {r0}
+ b .bss_zero_loop
+
+/* Loop to copy data from read only memory to RAM. The ranges
+ * of copy from/to are specified by following symbols evaluated in
+ * linker script.
+ * __etext: End of code section, i.e., begin of data sections to copy from.
+ * __data_start__/__data_end__: RAM address range that data should be
+ * copied to. Both must be aligned to 4 bytes boundary. */
+.data_copy_loop:
+ ldr r1, =__etext
+ ldr r2, =__data_start__
+ ldr r3, =__data_end__
+
+ subs r3, r2
+ ble .LC0
+
+.LC1:
+ subs r3, 4
+ ldr r0, [r1,r3]
+ str r0, [r2,r3]
+ bgt .LC1
+.LC0:
+ LDR R0, =__HeapBase
+ LDR R1, =__HeapLimit
+ BL _sbrkInit
+
+ LDR R0, =SystemInit
+ BLX R0
+ LDR R0, =_start
+ BX R0
+
+ .pool
+ .cantunwind
+ .fnend
+ .size Reset_Handler,.-Reset_Handler
+
+ .section ".text"
+
+
+/* Dummy Exception Handlers (infinite loops which can be modified) */
+
+ .weak NMI_Handler
+ .type NMI_Handler, %function
+NMI_Handler:
+ B .
+ .size NMI_Handler, . - NMI_Handler
+
+ .weak SVC_Handler
+ .type SVC_Handler, %function
+SVC_Handler:
+ B .
+ .size SVC_Handler, . - SVC_Handler
+
+
+ .weak PendSV_Handler
+ .type PendSV_Handler, %function
+PendSV_Handler:
+ B .
+ .size PendSV_Handler, . - PendSV_Handler
+
+
+ .weak SysTick_Handler
+ .type SysTick_Handler, %function
+SysTick_Handler:
+ B .
+ .size SysTick_Handler, . - SysTick_Handler
+
+/* Default handler. This uses the vector in the relocated vector table */
+ .globl Default_Handler
+ .type Default_Handler, %function
+Default_Handler:
+ LDR R2, =__vector_tbl_reloc__
+ MRS R0, PSR
+ MOVS R1, #0x3F
+ ANDS R0, R1
+ LSLS R0, R0, #2
+ LDR R0, [R0, R2]
+ BX R0
+ .size Default_Handler, . - Default_Handler
+
+/*
+ * All of the following IRQ Handlers will point to the default handler unless
+ * they are defined elsewhere.
+ */
+ .macro IRQ handler
+ .weak \handler
+ .set \handler, Default_Handler
+ .endm
+
+ IRQ _NMI_Handler
+ IRQ _HardFault_Handler
+ IRQ _SVC_Handler
+ IRQ _PendSV_Handler
+ IRQ _SysTick_Handler
+ IRQ _POWER_CLOCK_IRQHandler
+ IRQ _RADIO_IRQHandler
+ IRQ _UART0_IRQHandler
+ IRQ _SPI0_TWI0_IRQHandler
+ IRQ _SPI1_TWI1_IRQHandler
+ IRQ _GPIOTE_IRQHandler
+ IRQ _ADC_IRQHandler
+ IRQ _TIMER0_IRQHandler
+ IRQ _TIMER1_IRQHandler
+ IRQ _TIMER2_IRQHandler
+ IRQ _RTC0_IRQHandler
+ IRQ _TEMP_IRQHandler
+ IRQ _RNG_IRQHandler
+ IRQ _ECB_IRQHandler
+ IRQ _CCM_AAR_IRQHandler
+ IRQ _WDT_IRQHandler
+ IRQ _RTC1_IRQHandler
+ IRQ _QDEC_IRQHandler
+ IRQ _LPCOMP_IRQHandler
+ IRQ _SWI0_IRQHandler
+ IRQ _SWI1_IRQHandler
+ IRQ _SWI2_IRQHandler
+ IRQ _SWI3_IRQHandler
+ IRQ _SWI4_IRQHandler
+ IRQ _SWI5_IRQHandler
+
+ .end
http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/5f5e19ff/hw/bsp/bbc_microbit/src/arch/cortex_m0/gcc_startup_nrf51_split.s
----------------------------------------------------------------------
diff --git a/hw/bsp/bbc_microbit/src/arch/cortex_m0/gcc_startup_nrf51_split.s b/hw/bsp/bbc_microbit/src/arch/cortex_m0/gcc_startup_nrf51_split.s
new file mode 100755
index 0000000..c347187
--- /dev/null
+++ b/hw/bsp/bbc_microbit/src/arch/cortex_m0/gcc_startup_nrf51_split.s
@@ -0,0 +1,182 @@
+/*
+Copyright (c) 2015, Nordic Semiconductor ASA
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+* Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+
+* 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.
+
+* Neither the name of Nordic Semiconductor ASA 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.
+*/
+
+/*
+NOTE: Template files (including this one) are application specific and therefore
+expected to be copied into the application project folder prior to its use!
+*/
+
+ .syntax unified
+ .arch armv6-m
+
+ .section .stack
+ .align 3
+ .equ Stack_Size, 432
+ .globl __StackTop
+ .globl __StackLimit
+__StackLimit:
+ .space Stack_Size
+ .size __StackLimit, . - __StackLimit
+__StackTop:
+ .size __StackTop, . - __StackTop
+
+ .section .heap
+ .align 3
+#ifdef __HEAP_SIZE
+ .equ Heap_Size, __HEAP_SIZE
+#else
+ .equ Heap_Size, 0
+#endif
+ .globl __HeapBase
+ .globl __HeapLimit
+__HeapBase:
+ .if Heap_Size
+ .space Heap_Size
+ .endif
+ .size __HeapBase, . - __HeapBase
+__HeapLimit:
+ .size __HeapLimit, . - __HeapLimit
+
+ .section .isr_vector_split
+ .align 2
+ .globl __isr_vector_split
+__isr_vector_split:
+ .long __StackTop /* Top of Stack */
+ .long Reset_Handler_split /* Reset Handler */
+
+ .size __isr_vector_split, . - __isr_vector_split
+
+/* Reset Handler */
+
+ .equ NRF_POWER_RAMON_ADDRESS, 0x40000524
+ .equ NRF_POWER_RAMONB_ADDRESS, 0x40000554
+ .equ NRF_POWER_RAMONx_RAMxON_ONMODE_Msk, 0x3
+
+ .text
+ .thumb
+ .thumb_func
+ .align 1
+ .globl Reset_Handler_split
+ .type Reset_Handler_split, %function
+Reset_Handler_split:
+ .fnstart
+
+
+/* Clear CPU state before proceeding */
+ SUBS r0, r0
+ MSR CONTROL, r0
+ MSR PRIMASK, r0
+
+/* Make sure ALL RAM banks are powered on */
+ MOVS R1, #NRF_POWER_RAMONx_RAMxON_ONMODE_Msk
+
+ LDR R0, =NRF_POWER_RAMON_ADDRESS
+ LDR R2, [R0]
+ ORRS R2, R1
+ STR R2, [R0]
+
+ LDR R0, =NRF_POWER_RAMONB_ADDRESS
+ LDR R2, [R0]
+ ORRS R2, R1
+ STR R2, [R0]
+
+ /* Clear BSS */
+ subs r0, r0
+ ldr r2, =__bss_start__
+ ldr r3, =__bss_end__
+.bss_zero_loop:
+ cmp r2, r3
+ bhs .data_copy_loop
+ stmia r2!, {r0}
+ b .bss_zero_loop
+
+/* Loop to copy data from read only memory to RAM. The ranges
+ * of copy from/to are specified by following symbols evaluated in
+ * linker script.
+ * __etext: End of code section, i.e., begin of data sections to copy from.
+ * __data_start__/__data_end__: RAM address range that data should be
+ * copied to. Both must be aligned to 4 bytes boundary. */
+.data_copy_loop:
+ ldr r1, =__etext
+ ldr r2, =__data_start__
+ ldr r3, =__data_end__
+
+ subs r3, r2
+ ble .LC0
+
+.LC1:
+ subs r3, 4
+ ldr r0, [r1,r3]
+ str r0, [r2,r3]
+ bgt .LC1
+.LC0:
+ ldr r1, =__etext_loader
+ ldr r2, =__data_start___loader
+ ldr r3, =__data_end___loader
+
+ subs r3, r2
+ ble .LC2
+
+.LC3:
+ subs r3, 4
+ ldr r0, [r1,r3]
+ str r0, [r2,r3]
+ bgt .LC3
+.LC2:
+
+ subs r0, r0
+ ldr r2, =__bss_start___loader
+ ldr r3, =__bss_end___loader
+
+ subs r3, r2
+ ble .LC4
+
+.LC5:
+ subs r3, 4
+ str r0, [r2,r3]
+ bgt .LC5
+.LC4:
+ LDR R0, =__HeapBase
+ LDR R1, =__HeapLimit
+ BL _sbrkInit
+
+ LDR R0, =SystemInit
+ BLX R0
+ LDR R0, =_start_split
+ BX R0
+
+ .pool
+ .cantunwind
+ .fnend
+ .size Reset_Handler_split,.-Reset_Handler_split
+
+ .section ".text"
+
+ .end
http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/5f5e19ff/hw/bsp/bbc_microbit/src/hal_bsp.c
----------------------------------------------------------------------
diff --git a/hw/bsp/bbc_microbit/src/hal_bsp.c b/hw/bsp/bbc_microbit/src/hal_bsp.c
new file mode 100644
index 0000000..23f5c84
--- /dev/null
+++ b/hw/bsp/bbc_microbit/src/hal_bsp.c
@@ -0,0 +1,176 @@
+/*
+ * 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 <stdint.h>
+#include <stddef.h>
+#include <assert.h>
+#include "hal/hal_system.h"
+#include "bsp/bsp.h"
+#include <nrf51.h>
+#include "mcu/nrf51_hal.h"
+#include "hal/hal_bsp.h"
+#include "os/os_cputime.h"
+#include "syscfg/syscfg.h"
+#include "flash_map/flash_map.h"
+#include "hal/hal_flash.h"
+#include "hal/hal_spi.h"
+#include "os/os_dev.h"
+
+#if MYNEWT_VAL(UART_0)
+#include "uart/uart.h"
+#include "uart_hal/uart_hal.h"
+
+static struct uart_dev os_bsp_uart0;
+static const struct nrf51_uart_cfg os_bsp_uart0_cfg = {
+ .suc_pin_tx = MYNEWT_VAL(UART_0_PIN_TX),
+ .suc_pin_rx = MYNEWT_VAL(UART_0_PIN_RX),
+ .suc_pin_rts = MYNEWT_VAL(UART_0_PIN_RTS),
+ .suc_pin_cts = MYNEWT_VAL(UART_0_PIN_CTS),
+};
+#endif
+
+#if MYNEWT_VAL(SPI_0_MASTER)
+/*
+ * NOTE: Our HAL expects that the SS pin, if used, is treated as a gpio line
+ * and is handled outside the SPI routines.
+ */
+static const nrf_drv_spi_config_t os_bsp_spi0m_cfg = {
+ .sck_pin = 29,
+ .mosi_pin = 25,
+ .miso_pin = 28
+};
+#endif
+
+#if MYNEWT_VAL(SPI_1_SLAVE)
+static const nrf_drv_spis_config_t os_bsp_spi1s_cfg = {
+ .sck_pin = 29,
+ .mosi_pin = 25,
+ .miso_pin = 28,
+ .ss_pin = 24
+};
+#endif
+
+/*
+ * What memory to include in coredump.
+ */
+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 &nrf51_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;
+}
+
+int
+hal_bsp_power_state(int state)
+{
+ return (0);
+}
+
+/**
+ * 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)
+{
+ uint32_t cfg_pri;
+
+ switch (irq_num) {
+ /* Radio gets highest priority */
+ case RADIO_IRQn:
+ cfg_pri = 0;
+ break;
+ default:
+ cfg_pri = pri;
+ }
+ return cfg_pri;
+}
+
+void
+hal_bsp_init(void)
+{
+ int rc;
+
+ (void)rc;
+
+ /* Make sure system clocks have started */
+ hal_system_clock_start();
+
+#if MYNEWT_VAL(UART_0)
+ rc = os_dev_create((struct os_dev *) &os_bsp_uart0, "uart0",
+ OS_DEV_INIT_PRIMARY, 0, uart_hal_init, (void *)&os_bsp_uart0_cfg);
+ assert(rc == 0);
+#endif
+
+#if MYNEWT_VAL(TIMER_0)
+ rc = hal_timer_init(0, NULL);
+ assert(rc == 0);
+#endif
+#if MYNEWT_VAL(TIMER_1)
+ rc = hal_timer_init(1, NULL);
+ assert(rc == 0);
+#endif
+#if MYNEWT_VAL(TIMER_2)
+ rc = hal_timer_init(2, NULL);
+ assert(rc == 0);
+#endif
+#if MYNEWT_VAL(TIMER_3)
+ rc = hal_timer_init(3, NULL);
+ assert(rc == 0);
+#endif
+
+#if (MYNEWT_VAL(OS_CPUTIME_TIMER_NUM) >= 0)
+ rc = os_cputime_init(MYNEWT_VAL(OS_CPUTIME_FREQ));
+ assert(rc == 0);
+#endif
+
+#if MYNEWT_VAL(SPI_0_MASTER)
+ rc = hal_spi_init(0, (void *)&os_bsp_spi0m_cfg, HAL_SPI_TYPE_MASTER);
+ assert(rc == 0);
+#endif
+
+#if MYNEWT_VAL(SPI_1_SLAVE)
+ rc = hal_spi_init(1, (void *)&os_bsp_spi1s_cfg, HAL_SPI_TYPE_SLAVE);
+ assert(rc == 0);
+#endif
+}
http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/5f5e19ff/hw/bsp/bbc_microbit/src/sbrk.c
----------------------------------------------------------------------
diff --git a/hw/bsp/bbc_microbit/src/sbrk.c b/hw/bsp/bbc_microbit/src/sbrk.c
new file mode 100644
index 0000000..3fe253e
--- /dev/null
+++ b/hw/bsp/bbc_microbit/src/sbrk.c
@@ -0,0 +1,57 @@
+/*
+ * 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.
+ */
+
+/* put these in the data section so they are not cleared by _start */
+static char *sbrkBase __attribute__ ((section (".data")));
+static char *sbrkLimit __attribute__ ((section (".data")));
+static char *brk __attribute__ ((section (".data")));
+
+void
+_sbrkInit(char *base, char *limit) {
+ sbrkBase = base;
+ sbrkLimit = limit;
+ brk = base;
+}
+
+void *
+_sbrk(int incr)
+{
+ void *prev_brk;
+
+ if (incr < 0) {
+ /* Returning memory to the heap. */
+ incr = -incr;
+ if (brk - incr < sbrkBase) {
+ prev_brk = (void *)-1;
+ } else {
+ prev_brk = brk;
+ brk -= incr;
+ }
+ } else {
+ /* Allocating memory from the heap. */
+ if (sbrkLimit - brk >= incr) {
+ prev_brk = brk;
+ brk += incr;
+ } else {
+ prev_brk = (void *)-1;
+ }
+ }
+
+ return prev_brk;
+}
http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/5f5e19ff/hw/bsp/bbc_microbit/syscfg.yml
----------------------------------------------------------------------
diff --git a/hw/bsp/bbc_microbit/syscfg.yml b/hw/bsp/bbc_microbit/syscfg.yml
new file mode 100644
index 0000000..ff9cee3
--- /dev/null
+++ b/hw/bsp/bbc_microbit/syscfg.yml
@@ -0,0 +1,84 @@
+#
+# 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.
+#
+
+# Package: hw/bsp/bbc_microbit
+
+syscfg.defs:
+ BSP_NRF51:
+ description: 'TBD'
+ value: 1
+
+ XTAL_32768_SYNTH:
+ description: 'TBD'
+ value: 1
+
+ UART_0:
+ description: 'TBD'
+ value: 1
+ UART_0_PIN_TX:
+ description: 'TBD'
+ value: 24
+ UART_0_PIN_RX:
+ description: 'TBD'
+ value: 25
+ UART_0_PIN_RTS:
+ description: 'TBD'
+ value: 0
+ UART_0_PIN_CTS:
+ description: 'TBD'
+ value: 0
+
+ SPI_0_MASTER:
+ description: 'SPI 0 master'
+ value: 0
+ SPI_0_MASTER_SS_PIN:
+ description: 'SPI 0 (master) SS pin number.'
+ value: 24
+ SPI_1_MASTER:
+ description: 'SPI 1 master'
+ value: 0
+ restrictions:
+ - "!SPI_1_SLAVE"
+ SPI_1_MASTER_SS_PIN:
+ description: 'SPI 1 (master) SS pin number.'
+ value: -1
+ SPI_1_SLAVE:
+ description: 'SPI 1 slave'
+ value: 0
+ restrictions:
+ - "!SPI_1_MASTER"
+
+ TIMER_0:
+ description: 'NRF51 Timer 0'
+ value: 1
+ TIMER_1:
+ description: 'NRF51 Timer 1'
+ value: 0
+ TIMER_2:
+ description: 'NRF51 Timer 2'
+ value: 0
+ TIMER_3:
+ description: 'NRF51 RTC0'
+ value: 0
+
+syscfg.vals:
+ CONFIG_FCB_FLASH_AREA: FLASH_AREA_NFFS
+ REBOOT_LOG_FLASH_AREA: FLASH_AREA_REBOOT_LOG
+ NFFS_FLASH_AREA: FLASH_AREA_NFFS
+ COREDUMP_FLASH_AREA: FLASH_AREA_IMAGE_1