This is an automated email from the ASF dual-hosted git repository.
acassis pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/incubator-nuttx.git
The following commit(s) were added to refs/heads/master by this push:
new 8bf3c5e boards/stm32: add initial support for b-g431b-esc1 board
8bf3c5e is described below
commit 8bf3c5efb9ddc9a56c755042d14e9b15f773640a
Author: raiden00pl <[email protected]>
AuthorDate: Thu Mar 18 12:52:28 2021 +0100
boards/stm32: add initial support for b-g431b-esc1 board
---
Documentation/introduction/detailed_support.rst | 5 +
boards/Kconfig | 13 ++
boards/arm/stm32/b-g431b-esc1/Kconfig | 8 +
boards/arm/stm32/b-g431b-esc1/README.txt | 20 +++
.../arm/stm32/b-g431b-esc1/configs/nsh/defconfig | 52 ++++++
boards/arm/stm32/b-g431b-esc1/include/board.h | 188 +++++++++++++++++++++
boards/arm/stm32/b-g431b-esc1/scripts/Make.defs | 77 +++++++++
boards/arm/stm32/b-g431b-esc1/scripts/ld.script | 124 ++++++++++++++
boards/arm/stm32/b-g431b-esc1/src/.gitignore | 2 +
boards/arm/stm32/b-g431b-esc1/src/Make.defs | 38 +++++
boards/arm/stm32/b-g431b-esc1/src/b-g431b-esc1.h | 68 ++++++++
boards/arm/stm32/b-g431b-esc1/src/stm32_appinit.c | 91 ++++++++++
boards/arm/stm32/b-g431b-esc1/src/stm32_autoleds.c | 78 +++++++++
boards/arm/stm32/b-g431b-esc1/src/stm32_boot.c | 70 ++++++++
boards/arm/stm32/b-g431b-esc1/src/stm32_userleds.c | 75 ++++++++
15 files changed, 909 insertions(+)
diff --git a/Documentation/introduction/detailed_support.rst
b/Documentation/introduction/detailed_support.rst
index 71894ee..5285540 100644
--- a/Documentation/introduction/detailed_support.rst
+++ b/Documentation/introduction/detailed_support.rst
@@ -1808,6 +1808,11 @@ One board is supported in this family:
`README
<https://github.com/apache/incubator-nuttx/blob/master/boards/arm/stm32/nucleo-g431rb/README.txt>`__
file for further information.
+- **B-G431B-ESC1**. Initial board support for the
+ B-G431B-ESC1 was added in NuttX-10.0. Refer to the NuttX board
+ `README
<https://github.com/apache/incubator-nuttx/blob/master/boards/arm/stm32/b-g431b-esc1/README.txt>`__
+ file for further information.
+
STMicro STM32 L475
------------------
diff --git a/boards/Kconfig b/boards/Kconfig
index a9b892b..c3d031a 100644
--- a/boards/Kconfig
+++ b/boards/Kconfig
@@ -1802,6 +1802,15 @@ config ARCH_BOARD_B_G474E_DPOW1
MCU, a Cortex-M4 with FPU, 170 MHz, 128 KB SRAM, 512 KB code.
See boards/arm/stm32/b-g474e-dpow1/README.txt.
+config ARCH_BOARD_B_G431B_ESC1
+ bool "ST Micro B-G431B-ESC1 Discovery Kit"
+ depends on ARCH_CHIP_STM32G431C
+ select ARCH_HAVE_LEDS
+ select ARCH_HAVE_BUTTONS
+ ---help---
+ ST Micro B-G431B-ESC1 Discovery Kit, based on the STM32G431CB
+ MCU, a Cortex-M4 with FPU, 170 MHz, 32 KB SRAM, 128 KB code.
+
config ARCH_BOARD_NUCLEO_G431RB
bool "STM32G431RB Nucleo G431RB"
depends on ARCH_CHIP_STM32G431R
@@ -2398,6 +2407,7 @@ config ARCH_BOARD
default "stm32h747i-disco" if ARCH_BOARD_STM32H747I_DISCO
default "stm32f746-ws" if ARCH_BOARD_STM32F746_WS
default "b-g474e-dpow1" if ARCH_BOARD_B_G474E_DPOW1
+ default "b-g431b-esc1" if ARCH_BOARD_B_G431B_ESC1
default "nucleo-g431rb" if ARCH_BOARD_NUCLEO_G431RB
default "b-l072z-lrwan1" if ARCH_BOARD_B_L072Z_LRWAN1
default "b-l475e-iot01a" if ARCH_BOARD_B_L475E_IOT01A
@@ -2734,6 +2744,9 @@ endif
if ARCH_BOARD_B_G474E_DPOW1
source "boards/arm/stm32/b-g474e-dpow1/Kconfig"
endif
+if ARCH_BOARD_B_G431B_ESC1
+source "boards/arm/stm32/b-g431b-esc1/Kconfig"
+endif
if ARCH_BOARD_NUCLEO_G431RB
source "boards/arm/stm32/nucleo-g431rb/Kconfig"
endif
diff --git a/boards/arm/stm32/b-g431b-esc1/Kconfig
b/boards/arm/stm32/b-g431b-esc1/Kconfig
new file mode 100644
index 0000000..ef2d7cf
--- /dev/null
+++ b/boards/arm/stm32/b-g431b-esc1/Kconfig
@@ -0,0 +1,8 @@
+#
+# For a description of the syntax of this configuration file,
+# see the file kconfig-language.txt in the NuttX tools repository.
+#
+
+if ARCH_BOARD_B_G431B_ESC1
+
+endif # ARCH_BOARD_B_G431B_ESC1
diff --git a/boards/arm/stm32/b-g431b-esc1/README.txt
b/boards/arm/stm32/b-g431b-esc1/README.txt
new file mode 100644
index 0000000..7567661
--- /dev/null
+++ b/boards/arm/stm32/b-g431b-esc1/README.txt
@@ -0,0 +1,20 @@
+README
+======
+
+The B-G431B-ESC Discovery kit board is based on the STM32G431CB
microcontroller,
+the L6387 driver and STL180N6F7 power MOSFETs.
+
+UART/USART PINS
+---------------
+
+USART2 is accessible through J3 pads and ST LINK Virtual Console:
+ USART2_TX - PB3
+ USART2_RX - PB4
+
+Configuration Sub-directories
+-------------------------
+
+ nsh:
+ ---
+ Configures the NuttShell (nsh) located at apps/examples/nsh. The
+ Configuration enables the serial interfaces on USART2.
diff --git a/boards/arm/stm32/b-g431b-esc1/configs/nsh/defconfig
b/boards/arm/stm32/b-g431b-esc1/configs/nsh/defconfig
new file mode 100644
index 0000000..ba6d044
--- /dev/null
+++ b/boards/arm/stm32/b-g431b-esc1/configs/nsh/defconfig
@@ -0,0 +1,52 @@
+#
+# This file is autogenerated: PLEASE DO NOT EDIT IT.
+#
+# You can use "make menuconfig" to make any modifications to the installed
.config file.
+# You can then do "make savedefconfig" to generate a new defconfig file that
includes your
+# modifications.
+#
+# CONFIG_ARCH_FPU is not set
+# CONFIG_NSH_ARGCAT is not set
+# CONFIG_NSH_CMDOPT_HEXDUMP is not set
+# CONFIG_NSH_CMDPARMS is not set
+# CONFIG_NSH_DISABLE_IFCONFIG is not set
+# CONFIG_NSH_DISABLE_PS is not set
+# CONFIG_STM32_FLASH_PREFETCH is not set
+CONFIG_ARCH="arm"
+CONFIG_ARCH_BOARD="b-g431b-esc1"
+CONFIG_ARCH_BOARD_B_G431B_ESC1=y
+CONFIG_ARCH_BUTTONS=y
+CONFIG_ARCH_CHIP="stm32"
+CONFIG_ARCH_CHIP_STM32=y
+CONFIG_ARCH_CHIP_STM32G431C=y
+CONFIG_ARCH_INTERRUPTSTACK=2048
+CONFIG_ARCH_STACKDUMP=y
+CONFIG_BOARD_LOOPSPERMSEC=8499
+CONFIG_BUILTIN=y
+CONFIG_HAVE_CXX=y
+CONFIG_HAVE_CXXINITIALIZE=y
+CONFIG_INTELHEX_BINARY=y
+CONFIG_MAX_TASKS=16
+CONFIG_NFILE_DESCRIPTORS=8
+CONFIG_NSH_BUILTIN_APPS=y
+CONFIG_NSH_FILEIOSIZE=512
+CONFIG_NSH_LINELEN=64
+CONFIG_NSH_READLINE=y
+CONFIG_PREALLOC_TIMERS=4
+CONFIG_RAM_SIZE=22528
+CONFIG_RAM_START=0x20000000
+CONFIG_RAW_BINARY=y
+CONFIG_RR_INTERVAL=200
+CONFIG_SCHED_WAITPID=y
+CONFIG_SDCLONE_DISABLE=y
+CONFIG_START_DAY=14
+CONFIG_START_MONTH=10
+CONFIG_START_YEAR=2014
+CONFIG_STM32_JTAG_SW_ENABLE=y
+CONFIG_STM32_USART2=y
+CONFIG_SYSTEM_NSH=y
+CONFIG_TASK_NAME_SIZE=0
+CONFIG_TESTING_OSTEST=y
+CONFIG_TESTING_OSTEST_STACKSIZE=1024
+CONFIG_USART2_SERIAL_CONSOLE=y
+CONFIG_USER_ENTRYPOINT="nsh_main"
diff --git a/boards/arm/stm32/b-g431b-esc1/include/board.h
b/boards/arm/stm32/b-g431b-esc1/include/board.h
new file mode 100644
index 0000000..cb0ba42
--- /dev/null
+++ b/boards/arm/stm32/b-g431b-esc1/include/board.h
@@ -0,0 +1,188 @@
+/****************************************************************************
+ * boards/arm/stm32/b-g431b-esc1/include/board.h
+ *
+ * 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 __BOARDS_ARM_STM32_B_G431B_ESC1_INCLUDE_BOARD_H
+#define __BOARDS_ARM_STM32_B_G431B_ESC1_INCLUDE_BOARD_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/* Clocking *****************************************************************/
+
+#undef STM32_BOARD_XTAL /* Not installed by
default */
+
+#define STM32_HSI_FREQUENCY 16000000ul /* 16MHz */
+#define STM32_LSI_FREQUENCY 32000 /* 32kHz */
+#undef STM32_HSE_FREQUENCY /* Not installed by
default */
+#undef STM32_LSE_FREQUENCY /* Not available on
this board */
+
+/* Main PLL Configuration.
+ *
+ * PLL source is HSI = 16MHz
+ * PLLN = 85, PLLM = 4, PLLP = 10, PLLQ = 2, PLLR = 2
+ *
+ * f(VCO Clock) = f(PLL Clock Input) x (PLLN / PLLM)
+ * f(PLL_P) = f(VCO Clock) / PLLP
+ * f(PLL_Q) = f(VCO Clock) / PLLQ
+ * f(PLL_R) = f(VCO Clock) / PLLR
+ *
+ * Where:
+ * 8 <= PLLN <= 127
+ * 1 <= PLLM <= 16
+ * PLLP = 2 through 31
+ * PLLQ = 2, 4, 6, or 8
+ * PLLR = 2, 4, 6, or 8
+ *
+ * Do not exceed 170MHz on f(PLL_P), f(PLL_Q), or f(PLL_R).
+ * 64MHz <= f(VCO Clock) <= 344MHz.
+ *
+ * Given the above:
+ *
+ * f(VCO Clock) = HSI x PLLN / PLLM
+ * = 16MHz x 85 / 4
+ * = 340MHz
+ *
+ * PLLPCLK = f(VCO Clock) / PLLP
+ * = 340MHz / 10
+ * = 34MHz
+ * (May be used for ADC)
+ *
+ * PLLQCLK = f(VCO Clock) / PLLQ
+ * = 340MHz / 2
+ * = 170MHz
+ * (May be used for QUADSPI, FDCAN, SAI1, I2S3. If set to
+ * 48MHz, may be used for USB, RNG.)
+ *
+ * PLLRCLK = f(VCO Clock) / PLLR
+ * = 340MHz / 2
+ * = 170MHz
+ * (May be used for SYSCLK and most peripherals.)
+ */
+
+#define STM32_PLLCFGR_PLLSRC RCC_PLLCFGR_PLLSRC_HSI
+#define STM32_PLLCFGR_PLLCFG (RCC_PLLCFGR_PLLPEN | \
+ RCC_PLLCFGR_PLLQEN | \
+ RCC_PLLCFGR_PLLREN)
+
+#define STM32_PLLCFGR_PLLN RCC_PLLCFGR_PLLN(85)
+#define STM32_PLLCFGR_PLLM RCC_PLLCFGR_PLLM(4)
+#define STM32_PLLCFGR_PLLP RCC_PLLCFGR_PLLPDIV(10)
+#define STM32_PLLCFGR_PLLQ RCC_PLLCFGR_PLLQ_2
+#define STM32_PLLCFGR_PLLR RCC_PLLCFGR_PLLR_2
+
+#define STM32_VCO_FREQUENCY ((STM32_HSI_FREQUENCY / 4) * 85)
+#define STM32_PLLP_FREQUENCY (STM32_VCO_FREQUENCY / 10)
+#define STM32_PLLQ_FREQUENCY (STM32_VCO_FREQUENCY / 2)
+#define STM32_PLLR_FREQUENCY (STM32_VCO_FREQUENCY / 2)
+
+/* Use the PLL and set the SYSCLK source to be PLLR (170MHz) */
+
+#define STM32_SYSCLK_SW RCC_CFGR_SW_PLL
+#define STM32_SYSCLK_SWS RCC_CFGR_SWS_PLL
+#define STM32_SYSCLK_FREQUENCY STM32_PLLR_FREQUENCY
+
+/* AHB clock (HCLK) is SYSCLK (170MHz) */
+
+#define STM32_RCC_CFGR_HPRE RCC_CFGR_HPRE_SYSCLK
+#define STM32_HCLK_FREQUENCY STM32_SYSCLK_FREQUENCY
+#define STM32_BOARD_HCLK STM32_HCLK_FREQUENCY
+
+/* APB1 clock (PCLK1) is HCLK (170MHz) */
+
+#define STM32_RCC_CFGR_PPRE1 RCC_CFGR_PPRE1_HCLK
+#define STM32_PCLK1_FREQUENCY STM32_HCLK_FREQUENCY
+
+/* APB2 clock (PCLK2) is HCLK (170MHz) */
+
+#define STM32_RCC_CFGR_PPRE2 RCC_CFGR_PPRE2_HCLK
+#define STM32_PCLK2_FREQUENCY STM32_HCLK_FREQUENCY
+
+/* LED definitions **********************************************************/
+
+/* The B-G431B-ESC1 has four user LEDs.
+ *
+ * If CONFIG_ARCH_LEDS is not defined, then the user can control the LEDs in
+ * any way. The following definitions are used to access individual LEDs.
+ */
+
+/* LED index values for use with board_userled() */
+
+#define BOARD_LED1 0 /* User LD2 */
+#define BOARD_NLEDS 1
+
+/* LED bits for use with board_userled_all() */
+
+#define BOARD_LED1_BIT (1 << BOARD_LED1)
+
+/* If CONFIG_ARCH_LEDs is defined, then NuttX will control the LED on board
+ * the Nucleo G431RB. The following definitions describe how NuttX controls
+ * the LED:
+ *
+ * SYMBOL Meaning LED1 state
+ * ------------------ ----------------------- ----------
+ * LED_STARTED NuttX has been started OFF
+ * LED_HEAPALLOCATE Heap has been allocated OFF
+ * LED_IRQSENABLED Interrupts enabled OFF
+ * LED_STACKCREATED Idle stack created ON
+ * LED_INIRQ In an interrupt No change
+ * LED_SIGNAL In a signal handler No change
+ * LED_ASSERTION An assertion failed No change
+ * LED_PANIC The system has crashed Blinking
+ * LED_IDLE STM32 is is sleep mode Not used
+ */
+
+#define LED_STARTED 0
+#define LED_HEAPALLOCATE 0
+#define LED_IRQSENABLED 0
+#define LED_STACKCREATED 1
+#define LED_INIRQ 2
+#define LED_SIGNAL 2
+#define LED_ASSERTION 2
+#define LED_PANIC 1
+
+/* Button definitions *******************************************************/
+
+/* The B-G431B-ESC supports one buttons controllabe by software:
+ *
+ * B1 USER: user button connected to the I/O PC10.
+ */
+
+#define BUTTON_USER 0
+#define NUM_BUTTONS 1
+
+#define BUTTON_USER_BIT (1 << BUTTON_USER)
+
+/* Alternate function pin selections ****************************************/
+
+/* USART2 (ST LINK Virtual Console and J3 pads) */
+
+#define GPIO_USART2_TX GPIO_USART2_TX_3 /* PB3 */
+#define GPIO_USART2_RX GPIO_USART2_RX_3 /* PB4 */
+
+/* Pin Multiplexing Disambiguation ******************************************/
+
+#endif /* __BOARDS_ARM_STM32_B_G431B_ESC1_INCLUDE_BOARD_H */
diff --git a/boards/arm/stm32/b-g431b-esc1/scripts/Make.defs
b/boards/arm/stm32/b-g431b-esc1/scripts/Make.defs
new file mode 100644
index 0000000..0b32117
--- /dev/null
+++ b/boards/arm/stm32/b-g431b-esc1/scripts/Make.defs
@@ -0,0 +1,77 @@
+############################################################################
+# boards/arm/stm32/b-g431b-esc1/scripts/Make.defs
+#
+# 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 $(TOPDIR)/.config
+include $(TOPDIR)/tools/Config.mk
+include $(TOPDIR)/arch/arm/src/armv7-m/Toolchain.defs
+
+ifeq ($(CONFIG_STM32_DFU),y)
+ LDSCRIPT = ld.script.dfu
+else
+ LDSCRIPT = ld.script
+endif
+
+ifeq ($(CONFIG_CYGWIN_WINTOOL),y)
+ # Windows-native toolchains
+ ARCHSCRIPT = -T "${shell cygpath -w
$(BOARD_DIR)$(DELIM)scripts$(DELIM)$(LDSCRIPT)}"
+else
+ # Linux/Cygwin-native toolchain
+ ARCHSCRIPT = -T$(BOARD_DIR)$(DELIM)scripts$(DELIM)$(LDSCRIPT)
+endif
+
+ifeq ($(CONFIG_DEBUG_SYMBOLS),y)
+ ARCHOPTIMIZATION = -g
+endif
+
+ifneq ($(CONFIG_DEBUG_NOOPT),y)
+ ARCHOPTIMIZATION += $(MAXOPTIMIZATION) -fno-strict-aliasing
-fno-strength-reduce -fomit-frame-pointer
+endif
+
+ARCHCFLAGS = -fno-builtin -funwind-tables
+ARCHCXXFLAGS = -fno-builtin -fno-exceptions -fcheck-new -funwind-tables
+ARCHWARNINGS = -Wall -Wstrict-prototypes -Wshadow -Wundef
+ARCHWARNINGSXX = -Wall -Wshadow -Wundef
+ARCHPICFLAGS = -fpic -msingle-pic-base -mpic-register=r10
+
+CFLAGS := $(ARCHCFLAGS) $(ARCHWARNINGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS)
$(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRAFLAGS) -ffunction-sections
-fdata-sections -pipe
+CPICFLAGS = $(ARCHPICFLAGS) $(CFLAGS)
+CXXFLAGS := $(ARCHCXXFLAGS) $(ARCHWARNINGSXX) $(ARCHOPTIMIZATION)
$(ARCHCPUFLAGS) $(ARCHXXINCLUDES) $(ARCHDEFINES) $(EXTRAFLAGS)
-ffunction-sections -fdata-sections -pipe
+CXXPICFLAGS = $(ARCHPICFLAGS) $(CXXFLAGS)
+CPPFLAGS := $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRAFLAGS)
+AFLAGS := $(CFLAGS) -D__ASSEMBLY__
+
+NXFLATLDFLAGS1 = -r -d -warn-common
+NXFLATLDFLAGS2 = $(NXFLATLDFLAGS1)
-T$(TOPDIR)/binfmt/libnxflat/gnu-nxflat-pcrel.ld -no-check-sections
+LDNXFLATFLAGS = -e main -s 2048
+
+ifneq ($(CROSSDEV),arm-nuttx-elf-)
+ LDFLAGS += -nostartfiles -nodefaultlibs
+endif
+ifeq ($(CONFIG_DEBUG_SYMBOLS),y)
+ LDFLAGS += -g
+endif
+
+# Provide map file needed by the "Memory Allocation" view in Eclipse:
+LDFLAGS += -Map=$(TOPDIR)/NuttX.map --gc-sections
+
+# Embed absolute path to source file in debug information so that Eclipse
+# source level debugging won't get confused. See:
+#
https://stackoverflow.com/questions/1275476/gcc-gdb-how-to-embed-absolute-path-to-source-file-in-debug-information
+CFLAGS += -fdebug-prefix-map=..=$(readlink -f ..)
diff --git a/boards/arm/stm32/b-g431b-esc1/scripts/ld.script
b/boards/arm/stm32/b-g431b-esc1/scripts/ld.script
new file mode 100644
index 0000000..e565025
--- /dev/null
+++ b/boards/arm/stm32/b-g431b-esc1/scripts/ld.script
@@ -0,0 +1,124 @@
+/****************************************************************************
+ * boards/arm/stm32/b-g431b-esc1/scripts/ld.script
+ *
+ * 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.
+ *
+ ****************************************************************************/
+
+/* The STM32G431CB has 128 KiB of FLASH beginning at address 0x0800:0000.
+ *
+ * When booting from FLASH, FLASH memory is aliased to address 0x0000:0000
+ * where the code expects to begin execution by jumping to the entry point in
+ * the 0x0800:0000 address range.
+ *
+ * The STM32G431CB has a total of 32 KiB of SRAM in three separate areas:
+ *
+ * 1) 16 KiB SRAM1 mapped at 0x2000:0000 thru 0x2000:3fff.
+ * 2) 6 KiB SRAM2 mapped at 0x2000:4000 thru 0x2000:57ff.
+ *
+ * CCM SRAM (Routine Booster):
+ *
+ * 3) 10 KiB CCM SRAM mapped at 0x1000:0000 thru 0x1000:27ff
+ * but also aliased at at 0x2000:5800 thru 0x2000:7fff to be contiguous
+ * with the SRAM1 and SRAM2.
+ *
+ * Because SRAM1 and SRAM2 are contiguous, they are treated as one region
+ * by this logic.
+ *
+ * CCM SRAM is also contiguous to SRAM1 and SRAM2, however it is excluded
+ * from this linker script, to keep it reserved for special uses in code.
+ * REVISIT: Is this the correct way to handle CCM SRAM?
+ */
+
+MEMORY
+{
+ flash (rx) : ORIGIN = 0x08000000, LENGTH = 128K
+ sram (rwx) : ORIGIN = 0x20000000, LENGTH = 22K
+}
+
+OUTPUT_ARCH(arm)
+EXTERN(_vectors)
+ENTRY(_stext)
+
+SECTIONS
+{
+ .text : {
+ _stext = ABSOLUTE(.);
+ *(.vectors)
+ *(.text .text.*)
+ *(.fixup)
+ *(.gnu.warning)
+ *(.rodata .rodata.*)
+ *(.gnu.linkonce.t.*)
+ *(.glue_7)
+ *(.glue_7t)
+ *(.got)
+ *(.gcc_except_table)
+ *(.gnu.linkonce.r.*)
+ _etext = ABSOLUTE(.);
+ } > flash
+
+ .init_section : ALIGN(4) {
+ _sinit = ABSOLUTE(.);
+ *(.init_array .init_array.*)
+ _einit = ABSOLUTE(.);
+ } > flash
+
+ .ARM.extab : ALIGN(4) {
+ *(.ARM.extab*)
+ } > flash
+
+ .ARM.exidx : ALIGN(4) {
+ __exidx_start = ABSOLUTE(.);
+ *(.ARM.exidx*)
+ __exidx_end = ABSOLUTE(.);
+ } > flash
+
+ _eronly = ABSOLUTE(.);
+
+ .data : ALIGN(4) {
+ _sdata = ABSOLUTE(.);
+ *(.data .data.*)
+ *(.gnu.linkonce.d.*)
+ CONSTRUCTORS
+ . = ALIGN(4);
+ _edata = ABSOLUTE(.);
+ } > sram AT > flash
+
+ .bss : ALIGN(4) {
+ _sbss = ABSOLUTE(.);
+ *(.bss .bss.*)
+ *(.gnu.linkonce.b.*)
+ *(COMMON)
+ . = ALIGN(4);
+ _ebss = ABSOLUTE(.);
+ } > sram
+
+ /* Stabs debugging sections. */
+
+ .stab 0 : { *(.stab) }
+ .stabstr 0 : { *(.stabstr) }
+ .stab.excl 0 : { *(.stab.excl) }
+ .stab.exclstr 0 : { *(.stab.exclstr) }
+ .stab.index 0 : { *(.stab.index) }
+ .stab.indexstr 0 : { *(.stab.indexstr) }
+ .comment 0 : { *(.comment) }
+ .debug_abbrev 0 : { *(.debug_abbrev) }
+ .debug_info 0 : { *(.debug_info) }
+ .debug_line 0 : { *(.debug_line) }
+ .debug_pubnames 0 : { *(.debug_pubnames) }
+ .debug_aranges 0 : { *(.debug_aranges) }
+}
diff --git a/boards/arm/stm32/b-g431b-esc1/src/.gitignore
b/boards/arm/stm32/b-g431b-esc1/src/.gitignore
new file mode 100644
index 0000000..726d936
--- /dev/null
+++ b/boards/arm/stm32/b-g431b-esc1/src/.gitignore
@@ -0,0 +1,2 @@
+/.depend
+/Make.dep
diff --git a/boards/arm/stm32/b-g431b-esc1/src/Make.defs
b/boards/arm/stm32/b-g431b-esc1/src/Make.defs
new file mode 100644
index 0000000..6326d8f
--- /dev/null
+++ b/boards/arm/stm32/b-g431b-esc1/src/Make.defs
@@ -0,0 +1,38 @@
+############################################################################
+# boards/arm/stm32/nucleo-g431rb/src/Make.defs
+#
+# 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 $(TOPDIR)/Make.defs
+
+ASRCS =
+CSRCS = stm32_boot.c
+
+ifeq ($(CONFIG_ARCH_LEDS),y)
+CSRCS += stm32_autoleds.c
+else
+CSRCS += stm32_userleds.c
+endif
+
+ifeq ($(CONFIG_LIB_BOARDCTL),y)
+CSRCS += stm32_appinit.c
+endif
+
+DEPPATH += --dep-path board
+VPATH += :board
+CFLAGS += $(shell $(INCDIR) "$(CC)"
$(TOPDIR)$(DELIM)arch$(DELIM)$(CONFIG_ARCH)$(DELIM)src$(DELIM)board$(DELIM)board)
diff --git a/boards/arm/stm32/b-g431b-esc1/src/b-g431b-esc1.h
b/boards/arm/stm32/b-g431b-esc1/src/b-g431b-esc1.h
new file mode 100644
index 0000000..8de7a38
--- /dev/null
+++ b/boards/arm/stm32/b-g431b-esc1/src/b-g431b-esc1.h
@@ -0,0 +1,68 @@
+/****************************************************************************
+ * boards/arm/stm32/b-g431b-esc1/src/b-g431b-esc1.h
+ *
+ * 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 __BOARDS_ARM_STM32_B_G431B_ESC1_SRC_B_G431B_ESC1_H
+#define __BOARDS_ARM_STM32_B_G431B_ESC1_SRC_B_G431B_ESC1_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/* LED definitions **********************************************************/
+
+/* LED definitions **********************************************************/
+
+/* The B-G431B-ESC board has three LEDs. Two of these are controlled by
+ * logic on the board and are not available for software control:
+ *
+ * LD1 COM: LD1 default status is red. LD1 turns to green to indicate that
+ * communications are in progress between the PC and the
+ * ST-LINK/V3.
+ * LD3 PWR: red LED indicates that the board is powered.
+ *
+ * And one can be controlled by software:
+ *
+ * User LD2: green LED is a user LED connected to the I/O PC6 of the
+ * STM32G431RB.
+ *
+ * If CONFIG_ARCH_LEDS is not defined, then the user can control the LED in
+ * any way. The following definition is used to access the LED.
+ */
+
+#define GPIO_LED1 (GPIO_OUTPUT|GPIO_PUSHPULL|GPIO_SPEED_50MHz| \
+ GPIO_OUTPUT_CLEAR|GPIO_PORTC|GPIO_PIN6)
+
+#define LED_DRIVER_PATH "/dev/userleds"
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Function Prototypes
+ ****************************************************************************/
+
+#endif /* __BOARDS_ARM_STM32_B_G431B_ESC1_SRC_B_G431B_ESC1_H */
diff --git a/boards/arm/stm32/b-g431b-esc1/src/stm32_appinit.c
b/boards/arm/stm32/b-g431b-esc1/src/stm32_appinit.c
new file mode 100644
index 0000000..ae5cc93
--- /dev/null
+++ b/boards/arm/stm32/b-g431b-esc1/src/stm32_appinit.c
@@ -0,0 +1,91 @@
+/****************************************************************************
+ * boards/arm/stm32/b-g431b-esc1/src/stm32_appinit.c
+ *
+ * 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.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <sys/types.h>
+#include <syslog.h>
+
+#include <nuttx/board.h>
+#include <nuttx/leds/userled.h>
+
+#include "b-g431b-esc1.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+#undef HAVE_LEDS
+
+#if !defined(CONFIG_ARCH_LEDS) && defined(CONFIG_USERLED_LOWER)
+# define HAVE_LEDS 1
+#endif
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: board_app_initialize
+ *
+ * Description:
+ * Perform application specific initialization. This function is never
+ * called directly from application code, but only indirectly via the
+ * (non-standard) boardctl() interface using the command BOARDIOC_INIT.
+ *
+ * Input Parameters:
+ * arg - The boardctl() argument is passed to the board_app_initialize()
+ * implementation without modification. The argument has no
+ * meaning to NuttX; the meaning of the argument is a contract
+ * between the board-specific initialization logic and the
+ * matching application logic. The value could be such things as a
+ * mode enumeration value, a set of DIP switch settings, a pointer
+ * to configuration data read from a file or serial FLASH, or
+ * whatever you would like to do with it. Every implementation
+ * should accept zero/NULL as a default configuration.
+ *
+ * Returned Value:
+ * Zero (OK) is returned on success; a negated errno value is returned on
+ * any failure to indicate the nature of the failure.
+ *
+ ****************************************************************************/
+
+int board_app_initialize(uintptr_t arg)
+{
+ int ret;
+
+#if defined(HAVE_LEDS)
+ /* Register the LED driver */
+
+ ret = userled_lower_initialize(LED_DRIVER_PATH);
+ if (ret < 0)
+ {
+ syslog(LOG_ERR, "ERROR: userled_lower_initialize() failed: %d\n", ret);
+ return ret;
+ }
+#endif
+
+ UNUSED(ret);
+ return OK;
+}
diff --git a/boards/arm/stm32/b-g431b-esc1/src/stm32_autoleds.c
b/boards/arm/stm32/b-g431b-esc1/src/stm32_autoleds.c
new file mode 100644
index 0000000..7a87e51
--- /dev/null
+++ b/boards/arm/stm32/b-g431b-esc1/src/stm32_autoleds.c
@@ -0,0 +1,78 @@
+/****************************************************************************
+ * boards/arm/stm32/b-g431b-esc1/src/stm32_autoleds.c
+ *
+ * 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.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <debug.h>
+
+#include <nuttx/board.h>
+#include <arch/board/board.h>
+
+#include "stm32.h"
+#include "b-g431b-esc1.h"
+
+#if defined(CONFIG_ARCH_LEDS)
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: board_autoled_initialize
+ ****************************************************************************/
+
+void board_autoled_initialize(void)
+{
+ /* Configure LED GPIOs for output */
+
+ stm32_configgpio(GPIO_LED1);
+}
+
+/****************************************************************************
+ * Name: board_autoled_on
+ ****************************************************************************/
+
+void board_autoled_on(int led)
+{
+ if (led == BOARD_LED1)
+ {
+ stm32_gpiowrite(GPIO_LED1, true);
+ }
+}
+
+/****************************************************************************
+ * Name: board_autoled_off
+ ****************************************************************************/
+
+void board_autoled_off(int led)
+{
+ if (led == BOARD_LED1)
+ {
+ stm32_gpiowrite(GPIO_LED1, false);
+ }
+}
+
+#endif /* CONFIG_ARCH_LEDS */
diff --git a/boards/arm/stm32/b-g431b-esc1/src/stm32_boot.c
b/boards/arm/stm32/b-g431b-esc1/src/stm32_boot.c
new file mode 100644
index 0000000..cad23b8
--- /dev/null
+++ b/boards/arm/stm32/b-g431b-esc1/src/stm32_boot.c
@@ -0,0 +1,70 @@
+/****************************************************************************
+ * boards/arm/stm32/b-g431b-esc1/src/stm32_boot.c
+ *
+ * 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.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <nuttx/board.h>
+#include <arch/board/board.h>
+
+#include "b-g431b-esc1.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: stm32_boardinitialize
+ *
+ * Description:
+ * All STM32 architectures must provide the following entry point. This
+ * entry point is called early in the initialization -- after all memory
+ * has been configured and mapped but before any devices have been
+ * initialized.
+ *
+ ****************************************************************************/
+
+void stm32_boardinitialize(void)
+{
+#if defined(CONFIG_ARCH_LEDS)
+ /* Configure on-board LEDs if LED support has been selected. */
+
+ board_autoled_initialize();
+#endif
+}
diff --git a/boards/arm/stm32/b-g431b-esc1/src/stm32_userleds.c
b/boards/arm/stm32/b-g431b-esc1/src/stm32_userleds.c
new file mode 100644
index 0000000..b437edf
--- /dev/null
+++ b/boards/arm/stm32/b-g431b-esc1/src/stm32_userleds.c
@@ -0,0 +1,75 @@
+/****************************************************************************
+ * boards/arm/stm32/b-g431b-esc1/src/stm32_userleds.c
+ *
+ * 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.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <debug.h>
+
+#include <arch/board/board.h>
+
+#include "stm32.h"
+#include "b-g431b-esc1.h"
+
+#if !defined(CONFIG_ARCH_LEDS)
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: board_userled_initialize
+ ****************************************************************************/
+
+uint32_t board_userled_initialize(void)
+{
+ /* Configure LED GPIOs for output */
+
+ stm32_configgpio(GPIO_LED1);
+ return BOARD_NLEDS;
+}
+
+/****************************************************************************
+ * Name: board_userled
+ ****************************************************************************/
+
+void board_userled(int led, bool ledon)
+{
+ if (led == BOARD_LED1)
+ {
+ stm32_gpiowrite(GPIO_LED1, ledon);
+ }
+}
+
+/****************************************************************************
+ * Name: board_userled_all
+ ****************************************************************************/
+
+void board_userled_all(uint32_t ledset)
+{
+ stm32_gpiowrite(GPIO_LED1, (ledset & BOARD_LED1_BIT) != 0);
+}
+
+#endif /* !CONFIG_ARCH_LEDS */
