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Clyne 5 months ago
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2
.gitignore vendored
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.*
build

190
Makefile
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##############################################################################
# Build global options
# NOTE: Can be overridden externally.
#
# Compiler options here.
ifeq ($(USE_OPT),)
USE_OPT = -O3 -ggdb -fomit-frame-pointer -falign-functions=16
endif
# C specific options here (added to USE_OPT).
ifeq ($(USE_COPT),)
USE_COPT =
endif
# C++ specific options here (added to USE_OPT).
ifeq ($(USE_CPPOPT),)
USE_CPPOPT = -std=c++23 -fno-exceptions -fno-rtti
endif
# Enable this if you want the linker to remove unused code and data.
ifeq ($(USE_LINK_GC),)
USE_LINK_GC = yes
endif
# Linker extra options here.
ifeq ($(USE_LDOPT),)
USE_LDOPT = -lm
endif
# Enable this if you want link time optimizations (LTO).
ifeq ($(USE_LTO),)
USE_LTO = yes
endif
# Enable this if you want to see the full log while compiling.
ifeq ($(USE_VERBOSE_COMPILE),)
USE_VERBOSE_COMPILE = no
endif
# If enabled, this option makes the build process faster by not compiling
# modules not used in the current configuration.
ifeq ($(USE_SMART_BUILD),)
USE_SMART_BUILD = yes
endif
#
# Build global options
##############################################################################
##############################################################################
# Architecture or project specific options
#
# Stack size to be allocated to the Cortex-M process stack. This stack is
# the stack used by the main() thread.
ifeq ($(USE_PROCESS_STACKSIZE),)
USE_PROCESS_STACKSIZE = 0x200
endif
# Stack size to the allocated to the Cortex-M main/exceptions stack. This
# stack is used for processing interrupts and exceptions.
ifeq ($(USE_EXCEPTIONS_STACKSIZE),)
USE_EXCEPTIONS_STACKSIZE = 0x100
endif
# Enables the use of FPU (no, softfp, hard).
ifeq ($(USE_FPU),)
USE_FPU = softfp
endif
# FPU-related options.
ifeq ($(USE_FPU_OPT),)
USE_FPU_OPT = -mfloat-abi=$(USE_FPU) -mfpu=fpv4-sp-d16
endif
#
# Architecture or project specific options
##############################################################################
##############################################################################
# Project, target, sources and paths
#
# Define project name here
PROJECT = ch
# Target settings.
MCU = cortex-m0
# Imported source files and paths.
CHIBIOS := ../..
CONFDIR := ./cfg
BUILDDIR := ./build
DEPDIR := ./.dep
# Licensing files.
include $(CHIBIOS)/os/license/license.mk
# Startup files.
include $(CHIBIOS)/os/common/startup/ARMCMx/compilers/GCC/mk/startup_stm32g0xx.mk
# HAL-OSAL files (optional).
include $(CHIBIOS)/os/hal/hal.mk
include $(CHIBIOS)/os/hal/ports/STM32/STM32G0xx/platform.mk
#include $(CHIBIOS)/os/hal/boards/ST_NUCLEO64_G071RB/board.mk
include $(CHIBIOS)/os/hal/osal/rt-nil/osal.mk
# RTOS files (optional).
include $(CHIBIOS)/os/nil/nil.mk
include $(CHIBIOS)/os/common/ports/ARMv6-M/compilers/GCC/mk/port.mk
## Auto-build files in ./source recursively.
#include $(CHIBIOS)/tools/mk/autobuild.mk
## Other files (optional).
#include $(CHIBIOS)/os/test/test.mk
#include $(CHIBIOS)/test/nil/nil_test.mk
#include $(CHIBIOS)/test/oslib/oslib_test.mk
# Define linker script file here
LDSCRIPT= STM32G031x6.ld
# C sources that can be compiled in ARM or THUMB mode depending on the global
# setting.
CSRC = $(ALLCSRC) \
board.c
# C++ sources that can be compiled in ARM or THUMB mode depending on the global
# setting.
CPPSRC = $(ALLCPPSRC) \
main.cpp
# List ASM source files here.
ASMSRC = $(ALLASMSRC)
# List ASM with preprocessor source files here.
ASMXSRC = $(ALLXASMSRC)
# Inclusion directories.
INCDIR = $(CONFDIR) $(ALLINC) \
fpm/include
# Define C warning options here.
CWARN = -Wall -Wextra -Wundef -Wstrict-prototypes
# Define C++ warning options here.
CPPWARN = -Wall -Wextra -Wundef -Wno-volatile
#
# Project, target, sources and paths
##############################################################################
##############################################################################
# Start of user section
#
# List all user C define here, like -D_DEBUG=1
UDEFS =
# Define ASM defines here
UADEFS =
# List all user directories here
UINCDIR =
# List the user directory to look for the libraries here
ULIBDIR =
# List all user libraries here
ULIBS =
#
# End of user section
##############################################################################
##############################################################################
# Common rules
#
RULESPATH = $(CHIBIOS)/os/common/startup/ARMCMx/compilers/GCC/mk
include $(RULESPATH)/arm-none-eabi.mk
include $(RULESPATH)/rules.mk
#
# Common rules
##############################################################################
##############################################################################
# Custom rules
#
#
# Custom rules
##############################################################################

85
STM32G031x6.ld
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/*
ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio
Licensed 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.
*/
/*
* STM32G031x8 memory setup.
*/
MEMORY
{
flash0 (rx) : org = 0x08000000, len = 32k
flash1 (rx) : org = 0x00000000, len = 0
flash2 (rx) : org = 0x00000000, len = 0
flash3 (rx) : org = 0x00000000, len = 0
flash4 (rx) : org = 0x00000000, len = 0
flash5 (rx) : org = 0x00000000, len = 0
flash6 (rx) : org = 0x00000000, len = 0
flash7 (rx) : org = 0x00000000, len = 0
ram0 (wx) : org = 0x20000000, len = 8k
ram1 (wx) : org = 0x00000000, len = 0
ram2 (wx) : org = 0x00000000, len = 0
ram3 (wx) : org = 0x00000000, len = 0
ram4 (wx) : org = 0x00000000, len = 0
ram5 (wx) : org = 0x00000000, len = 0
ram6 (wx) : org = 0x00000000, len = 0
ram7 (wx) : org = 0x00000000, len = 0
}
/* For each data/text section two region are defined, a virtual region
and a load region (_LMA suffix).*/
/* Flash region to be used for exception vectors.*/
REGION_ALIAS("VECTORS_FLASH", flash0);
REGION_ALIAS("VECTORS_FLASH_LMA", flash0);
/* Flash region to be used for constructors and destructors.*/
REGION_ALIAS("XTORS_FLASH", flash0);
REGION_ALIAS("XTORS_FLASH_LMA", flash0);
/* Flash region to be used for code text.*/
REGION_ALIAS("TEXT_FLASH", flash0);
REGION_ALIAS("TEXT_FLASH_LMA", flash0);
/* Flash region to be used for read only data.*/
REGION_ALIAS("RODATA_FLASH", flash0);
REGION_ALIAS("RODATA_FLASH_LMA", flash0);
/* Flash region to be used for various.*/
REGION_ALIAS("VARIOUS_FLASH", flash0);
REGION_ALIAS("VARIOUS_FLASH_LMA", flash0);
/* Flash region to be used for RAM(n) initialization data.*/
REGION_ALIAS("RAM_INIT_FLASH_LMA", flash0);
/* RAM region to be used for Main stack. This stack accommodates the processing
of all exceptions and interrupts.*/
REGION_ALIAS("MAIN_STACK_RAM", ram0);
/* RAM region to be used for the process stack. This is the stack used by
the main() function.*/
REGION_ALIAS("PROCESS_STACK_RAM", ram0);
/* RAM region to be used for data segment.*/
REGION_ALIAS("DATA_RAM", ram0);
REGION_ALIAS("DATA_RAM_LMA", flash0);
/* RAM region to be used for BSS segment.*/
REGION_ALIAS("BSS_RAM", ram0);
/* RAM region to be used for the default heap.*/
REGION_ALIAS("HEAP_RAM", ram0);
/* Generic rules inclusion.*/
INCLUDE rules.ld

50
board.c
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/*
ChibiOS - Copyright (C) 2006..2020 Giovanni Di Sirio
Licensed 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.
*/
/*
* This file has been automatically generated using ChibiStudio board
* generator plugin. Do not edit manually.
*/
#include "hal.h"
#include "stm32_gpio.h"
static void stm32_gpio_init(void) {
/* Enabling GPIO-related clocks, the mask comes from the
registry header file.*/
rccResetIOP(STM32_GPIO_EN_MASK);
rccEnableIOP(STM32_GPIO_EN_MASK, true);
}
/**
* @brief Early initialization code.
* @details GPIO ports and system clocks are initialized before everything
* else.
*/
void __early_init(void) {
stm32_gpio_init();
stm32_clock_init();
}
/**
* @brief Board-specific initialization code.
* @note Add your board-specific code, if any.
*/
void boardInit(void) {
//palSetLineMode(LINE_LED_GREEN, PAL_MODE_OUTPUT_PUSHPULL);
}

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board.h
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/*
ChibiOS - Copyright (C) 2006..2020 Giovanni Di Sirio
Licensed 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.
*/
/*
* This file has been automatically generated using ChibiStudio board
* generator plugin. Do not edit manually.
*/
#ifndef BOARD_H
#define BOARD_H
/*===========================================================================*/
/* Driver constants. */
/*===========================================================================*/
/*
* Setup for STMicroelectronics STM32 Nucleo32-G031K8 board.
*/
/*
* Board identifier.
*/
#define BOARD_ST_NUCLEO32_G031J6
#define BOARD_NAME "STMicroelectronics STM32 Nucleo32-G031J6"
/*
* Board oscillators-related settings.
* NOTE: HSE not fitted.
*/
#if !defined(STM32_LSECLK)
#define STM32_LSECLK 32768U
#endif
#define STM32_LSEDRV (3U << 11U)
#if !defined(STM32_HSECLK)
#define STM32_HSECLK 0U
#endif
/*
* MCU type as defined in the ST header.
*/
#define STM32G031xx
/*
* IO lines assignments.
*/
//#define LINE_LED_GREEN PAL_LINE(GPIOA, 12U)
#define LINE_I2S_SD PAL_LINE(GPIOA, 12U) // or PB5
#define LINE_I2S_WS PAL_LINE(GPIOB, 0U)
#define LINE_I2S_CK PAL_LINE(GPIOA, 1U)
#define LINE_USART2_TX PAL_LINE(GPIOA, 14U)
/*
* I/O ports initial setup, this configuration is established soon after reset
* in the initialization code.
* Please refer to the STM32 Reference Manual for details.
*/
#define PIN_MODE_INPUT(n) (0U << ((n) * 2U))
#define PIN_MODE_OUTPUT(n) (1U << ((n) * 2U))
#define PIN_MODE_ALTERNATE(n) (2U << ((n) * 2U))
#define PIN_MODE_ANALOG(n) (3U << ((n) * 2U))
#define PIN_ODR_LOW(n) (0U << (n))
#define PIN_ODR_HIGH(n) (1U << (n))
#define PIN_OTYPE_PUSHPULL(n) (0U << (n))
#define PIN_OTYPE_OPENDRAIN(n) (1U << (n))
#define PIN_OSPEED_VERYLOW(n) (0U << ((n) * 2U))
#define PIN_OSPEED_LOW(n) (1U << ((n) * 2U))
#define PIN_OSPEED_MEDIUM(n) (2U << ((n) * 2U))
#define PIN_OSPEED_HIGH(n) (3U << ((n) * 2U))
#define PIN_PUPDR_FLOATING(n) (0U << ((n) * 2U))
#define PIN_PUPDR_PULLUP(n) (1U << ((n) * 2U))
#define PIN_PUPDR_PULLDOWN(n) (2U << ((n) * 2U))
#define PIN_AFIO_AF(n, v) ((v) << (((n) % 8U) * 4U))
/*===========================================================================*/
/* External declarations. */
/*===========================================================================*/
#if !defined(_FROM_ASM_)
#ifdef __cplusplus
extern "C" {
#endif
void boardInit(void);
#ifdef __cplusplus
}
#endif
#endif /* _FROM_ASM_ */
#endif /* BOARD_H */

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cfg/chconf.h
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/*
ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio
Licensed 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.
*/
/**
* @file nil/templates/chconf.h
* @brief Configuration file template.
* @details A copy of this file must be placed in each project directory, it
* contains the application specific kernel settings.
*
* @addtogroup NIL_CONFIG
* @details Kernel related settings and hooks.
* @{
*/
#ifndef CHCONF_H
#define CHCONF_H
#define _CHIBIOS_NIL_CONF_
#define _CHIBIOS_NIL_CONF_VER_4_0_
/*===========================================================================*/
/**
* @name Kernel parameters and options
* @{
*/
/*===========================================================================*/
/**
* @brief Maximum number of user threads in the application.
* @note This number is not inclusive of the idle thread which is
* implicitly handled.
* @note Set this value to be exactly equal to the number of threads you
* will use or you would be wasting RAM and cycles.
* @note This values also defines the number of available priorities
* (0..CH_CFG_MAX_THREADS-1).
*/
#if !defined(CH_CFG_MAX_THREADS)
#define CH_CFG_MAX_THREADS 2
#endif
/**
* @brief Auto starts threads when @p chSysInit() is invoked.
*/
#if !defined(CH_CFG_AUTOSTART_THREADS)
#define CH_CFG_AUTOSTART_THREADS TRUE
#endif
/** @} */
/*===========================================================================*/
/**
* @name System timer settings
* @{
*/
/*===========================================================================*/
/**
* @brief System time counter resolution.
* @note Allowed values are 16 or 32 bits.
*/
#if !defined(CH_CFG_ST_RESOLUTION)
#define CH_CFG_ST_RESOLUTION 32
#endif
/**
* @brief System tick frequency.
* @note This value together with the @p CH_CFG_ST_RESOLUTION
* option defines the maximum amount of time allowed for
* timeouts.
*/
#if !defined(CH_CFG_ST_FREQUENCY)
#define CH_CFG_ST_FREQUENCY 1000
#endif
/**
* @brief Time delta constant for the tick-less mode.
* @note If this value is zero then the system uses the classic
* periodic tick. This value represents the minimum number
* of ticks that is safe to specify in a timeout directive.
* The value one is not valid, timeouts are rounded up to
* this value.
*/
#if !defined(CH_CFG_ST_TIMEDELTA)
#define CH_CFG_ST_TIMEDELTA 2
#endif
/** @} */
/*===========================================================================*/
/**
* @name Subsystem options
* @{
*/
/*===========================================================================*/
/**
* @brief Threads synchronization APIs.
* @details If enabled then the @p chThdWait() function is included in
* the kernel.
*
* @note The default is @p TRUE.
*/
#if !defined(CH_CFG_USE_WAITEXIT)
#define CH_CFG_USE_WAITEXIT TRUE
#endif
/**
* @brief Semaphores APIs.
* @details If enabled then the Semaphores APIs are included in the kernel.
*
* @note The default is @p TRUE.
*/
#if !defined(CH_CFG_USE_SEMAPHORES)
#define CH_CFG_USE_SEMAPHORES TRUE
#endif
/**
* @brief Mutexes APIs.
* @details If enabled then the mutexes APIs are included in the kernel.
*
* @note Feature not currently implemented.
* @note The default is @p FALSE.
*/
#if !defined(CH_CFG_USE_MUTEXES)
#define CH_CFG_USE_MUTEXES FALSE
#endif
/**
* @brief Events Flags APIs.
* @details If enabled then the event flags APIs are included in the kernel.
*
* @note The default is @p TRUE.
*/
#if !defined(CH_CFG_USE_EVENTS)
#define CH_CFG_USE_EVENTS FALSE
#endif
/**
* @brief Synchronous Messages APIs.
* @details If enabled then the synchronous messages APIs are included
* in the kernel.
*
* @note The default is @p TRUE.
*/
#if !defined(CH_CFG_USE_MESSAGES)
#define CH_CFG_USE_MESSAGES FALSE
#endif
/** @} */
/*===========================================================================*/
/**
* @name OSLIB options
* @{
*/
/*===========================================================================*/
/**
* @brief Mailboxes APIs.
* @details If enabled then the asynchronous messages (mailboxes) APIs are
* included in the kernel.
*
* @note The default is @p TRUE.
* @note Requires @p CH_CFG_USE_SEMAPHORES.
*/
#if !defined(CH_CFG_USE_MAILBOXES)
#define CH_CFG_USE_MAILBOXES FALSE
#endif
/**
* @brief Core Memory Manager APIs.
* @details If enabled then the core memory manager APIs are included
* in the kernel.
*
* @note The default is @p TRUE.
*/
#if !defined(CH_CFG_USE_MEMCORE)
#define CH_CFG_USE_MEMCORE FALSE
#endif
/**
* @brief Managed RAM size.
* @details Size of the RAM area to be managed by the OS. If set to zero
* then the whole available RAM is used. The core memory is made
* available to the heap allocator and/or can be used directly through
* the simplified core memory allocator.
*
* @note In order to let the OS manage the whole RAM the linker script must
* provide the @p __heap_base__ and @p __heap_end__ symbols.
* @note Requires @p CH_CFG_USE_MEMCORE.
*/
#if !defined(CH_CFG_MEMCORE_SIZE)
#define CH_CFG_MEMCORE_SIZE 0
#endif
/**
* @brief Heap Allocator APIs.
* @details If enabled then the memory heap allocator APIs are included
* in the kernel.
*
* @note The default is @p TRUE.
*/
#if !defined(CH_CFG_USE_HEAP)
#define CH_CFG_USE_HEAP FALSE
#endif
/**
* @brief Memory Pools Allocator APIs.
* @details If enabled then the memory pools allocator APIs are included
* in the kernel.
*
* @note The default is @p TRUE.
*/
#if !defined(CH_CFG_USE_MEMPOOLS)
#define CH_CFG_USE_MEMPOOLS FALSE
#endif
/**
* @brief Objects FIFOs APIs.
* @details If enabled then the objects FIFOs APIs are included
* in the kernel.
*
* @note The default is @p TRUE.
*/
#if !defined(CH_CFG_USE_OBJ_FIFOS)
#define CH_CFG_USE_OBJ_FIFOS FALSE
#endif
/**
* @brief Pipes APIs.
* @details If enabled then the pipes APIs are included
* in the kernel.
*
* @note The default is @p TRUE.
*/
#if !defined(CH_CFG_USE_PIPES)
#define CH_CFG_USE_PIPES FALSE
#endif
/**
* @brief Objects Caches APIs.
* @details If enabled then the objects caches APIs are included
* in the kernel.
*
* @note The default is @p TRUE.
*/
#if !defined(CH_CFG_USE_OBJ_CACHES)
#define CH_CFG_USE_OBJ_CACHES FALSE
#endif
/**
* @brief Delegate threads APIs.
* @details If enabled then the delegate threads APIs are included
* in the kernel.
*
* @note The default is @p TRUE.
*/
#if !defined(CH_CFG_USE_DELEGATES)
#define CH_CFG_USE_DELEGATES FALSE
#endif
/**
* @brief Jobs Queues APIs.
* @details If enabled then the jobs queues APIs are included
* in the kernel.
*
* @note The default is @p TRUE.
*/
#if !defined(CH_CFG_USE_JOBS)
#define CH_CFG_USE_JOBS FALSE
#endif
/** @} */
/*===========================================================================*/
/**
* @name Objects factory options
* @{
*/
/*===========================================================================*/
/**
* @brief Objects Factory APIs.
* @details If enabled then the objects factory APIs are included in the
* kernel.
*
* @note The default is @p FALSE.
*/
#if !defined(CH_CFG_USE_FACTORY)
#define CH_CFG_USE_FACTORY FALSE
#endif
/**
* @brief Maximum length for object names.
* @details If the specified length is zero then the name is stored by
* pointer but this could have unintended side effects.
*/
#if !defined(CH_CFG_FACTORY_MAX_NAMES_LENGTH)
#define CH_CFG_FACTORY_MAX_NAMES_LENGTH 8
#endif
/**
* @brief Enables the registry of generic objects.
*/
#if !defined(CH_CFG_FACTORY_OBJECTS_REGISTRY)
#define CH_CFG_FACTORY_OBJECTS_REGISTRY TRUE
#endif
/**
* @brief Enables factory for generic buffers.
*/
#if !defined(CH_CFG_FACTORY_GENERIC_BUFFERS)
#define CH_CFG_FACTORY_GENERIC_BUFFERS TRUE
#endif
/**
* @brief Enables factory for semaphores.
*/
#if !defined(CH_CFG_FACTORY_SEMAPHORES)
#define CH_CFG_FACTORY_SEMAPHORES TRUE
#endif
/**
* @brief Enables factory for mailboxes.
*/
#if !defined(CH_CFG_FACTORY_MAILBOXES)
#define CH_CFG_FACTORY_MAILBOXES TRUE
#endif
/**
* @brief Enables factory for objects FIFOs.
*/
#if !defined(CH_CFG_FACTORY_OBJ_FIFOS)
#define CH_CFG_FACTORY_OBJ_FIFOS TRUE
#endif
/**
* @brief Enables factory for Pipes.
*/
#if !defined(CH_CFG_FACTORY_PIPES)
#define CH_CFG_FACTORY_PIPES TRUE
#endif
/** @} */
/*===========================================================================*/
/**
* @name Debug options
* @{
*/
/*===========================================================================*/
/**
* @brief Debug option, kernel statistics.
*
* @note Feature not currently implemented.
* @note The default is @p FALSE.
*/
#if !defined(CH_DBG_STATISTICS)
#define CH_DBG_STATISTICS FALSE
#endif
/**
* @brief Debug option, system state check.
*
* @note The default is @p FALSE.
*/
#if !defined(CH_DBG_SYSTEM_STATE_CHECK)
#define CH_DBG_SYSTEM_STATE_CHECK FALSE
#endif
/**
* @brief Debug option, parameters checks.
*
* @note The default is @p FALSE.
*/
#if !defined(CH_DBG_ENABLE_CHECKS)
#define CH_DBG_ENABLE_CHECKS FALSE
#endif
/**
* @brief System assertions.
*
* @note The default is @p FALSE.
*/
#if !defined(CH_DBG_ENABLE_ASSERTS)
#define CH_DBG_ENABLE_ASSERTS FALSE
#endif
/**
* @brief Stack check.
*
* @note The default is @p FALSE.
*/
#if !defined(CH_DBG_ENABLE_STACK_CHECK)
#define CH_DBG_ENABLE_STACK_CHECK FALSE
#endif
/** @} */
/*===========================================================================*/
/**
* @name Kernel hooks
* @{
*/
/*===========================================================================*/
/**
* @brief System initialization hook.
*/
#define CH_CFG_SYSTEM_INIT_HOOK() { \
}
/**
* @brief Threads descriptor structure extension.
* @details User fields added to the end of the @p thread_t structure.
*/
#define CH_CFG_THREAD_EXT_FIELDS \
/* Add threads custom fields here.*/
/**
* @brief Threads initialization hook.
*/
#define CH_CFG_THREAD_EXT_INIT_HOOK(tr) { \
/* Add custom threads initialization code here.*/ \
}
/**
* @brief Threads finalization hook.
* @details User finalization code added to the @p chThdExit() API.
*/
#define CH_CFG_THREAD_EXIT_HOOK(tp) {}
/**
* @brief Idle thread enter hook.
* @note This hook is invoked within a critical zone, no OS functions
* should be invoked from here.
* @note This macro can be used to activate a power saving mode.
*/
#define CH_CFG_IDLE_ENTER_HOOK() { \
asm("wfi"); \
}
/**
* @brief Idle thread leave hook.
* @note This hook is invoked within a critical zone, no OS functions
* should be invoked from here.
* @note This macro can be used to deactivate a power saving mode.
*/
#define CH_CFG_IDLE_LEAVE_HOOK() { \
}
/**
* @brief System halt hook.
*/
#define CH_CFG_SYSTEM_HALT_HOOK(reason) { \
}
/** @} */
/*===========================================================================*/
/* Port-specific settings (override port settings defaulted in nilcore.h). */
/*===========================================================================*/
#endif /* CHCONF_H */
/** @} */

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/*
ChibiOS - Copyright (C) 2006..2020 Giovanni Di Sirio
Licensed 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.
*/
/**
* @file templates/halconf.h
* @brief HAL configuration header.
* @details HAL configuration file, this file allows to enable or disable the
* various device drivers from your application. You may also use
* this file in order to override the device drivers default settings.
*
* @addtogroup HAL_CONF
* @{
*/
#ifndef HALCONF_H
#define HALCONF_H
#define _CHIBIOS_HAL_CONF_
#define _CHIBIOS_HAL_CONF_VER_8_4_
#include "mcuconf.h"
/**
* @brief Enables the PAL subsystem.
*/
#if !defined(HAL_USE_PAL) || defined(__DOXYGEN__)
#define HAL_USE_PAL TRUE
#endif
/**
* @brief Enables the ADC subsystem.
*/
#if !defined(HAL_USE_ADC) || defined(__DOXYGEN__)
#define HAL_USE_ADC FALSE
#endif
/**
* @brief Enables the CAN subsystem.
*/
#if !defined(HAL_USE_CAN) || defined(__DOXYGEN__)
#define HAL_USE_CAN FALSE
#endif
/**
* @brief Enables the cryptographic subsystem.
*/
#if !defined(HAL_USE_CRY) || defined(__DOXYGEN__)
#define HAL_USE_CRY FALSE
#endif
/**
* @brief Enables the DAC subsystem.
*/
#if !defined(HAL_USE_DAC) || defined(__DOXYGEN__)
#define HAL_USE_DAC FALSE
#endif
/**
* @brief Enables the EFlash subsystem.
*/
#if !defined(HAL_USE_EFL) || defined(__DOXYGEN__)
#define HAL_USE_EFL FALSE
#endif
/**
* @brief Enables the GPT subsystem.
*/
#if !defined(HAL_USE_GPT) || defined(__DOXYGEN__)
#define HAL_USE_GPT FALSE
#endif
/**
* @brief Enables the I2C subsystem.
*/
#if !defined(HAL_USE_I2C) || defined(__DOXYGEN__)
#define HAL_USE_I2C FALSE
#endif
/**
* @brief Enables the I2S subsystem.
*/
#if !defined(HAL_USE_I2S) || defined(__DOXYGEN__)
#define HAL_USE_I2S TRUE
#endif
/**
* @brief Enables the ICU subsystem.
*/
#if !defined(HAL_USE_ICU) || defined(__DOXYGEN__)
#define HAL_USE_ICU FALSE
#endif
/**
* @brief Enables the MAC subsystem.
*/
#if !defined(HAL_USE_MAC) || defined(__DOXYGEN__)
#define HAL_USE_MAC FALSE
#endif
/**
* @brief Enables the MMC_SPI subsystem.
*/
#if !defined(HAL_USE_MMC_SPI) || defined(__DOXYGEN__)
#define HAL_USE_MMC_SPI FALSE
#endif
/**
* @brief Enables the PWM subsystem.
*/
#if !defined(HAL_USE_PWM) || defined(__DOXYGEN__)
#define HAL_USE_PWM FALSE
#endif
/**
* @brief Enables the RTC subsystem.
*/
#if !defined(HAL_USE_RTC) || defined(__DOXYGEN__)
#define HAL_USE_RTC FALSE
#endif
/**
* @brief Enables the SDC subsystem.
*/
#if !defined(HAL_USE_SDC) || defined(__DOXYGEN__)
#define HAL_USE_SDC FALSE
#endif
/**
* @brief Enables the SERIAL subsystem.
*/
#if !defined(HAL_USE_SERIAL) || defined(__DOXYGEN__)
#define HAL_USE_SERIAL TRUE
#endif
/**
* @brief Enables the SERIAL over USB subsystem.
*/
#if !defined(HAL_USE_SERIAL_USB) || defined(__DOXYGEN__)
#define HAL_USE_SERIAL_USB FALSE
#endif
/**
* @brief Enables the SIO subsystem.
*/
#if !defined(HAL_USE_SIO) || defined(__DOXYGEN__)
#define HAL_USE_SIO FALSE
#endif
/**
* @brief Enables the SPI subsystem.
*/
#if !defined(HAL_USE_SPI) || defined(__DOXYGEN__)
#define HAL_USE_SPI FALSE
#endif
/**
* @brief Enables the TRNG subsystem.
*/
#if !defined(HAL_USE_TRNG) || defined(__DOXYGEN__)
#define HAL_USE_TRNG FALSE
#endif
/**
* @brief Enables the UART subsystem.
*/
#if !defined(HAL_USE_UART) || defined(__DOXYGEN__)
#define HAL_USE_UART FALSE
#endif
/**
* @brief Enables the USB subsystem.
*/
#if !defined(HAL_USE_USB) || defined(__DOXYGEN__)
#define HAL_USE_USB FALSE
#endif
/**
* @brief Enables the WDG subsystem.
*/
#if !defined(HAL_USE_WDG) || defined(__DOXYGEN__)
#define HAL_USE_WDG FALSE
#endif
/**
* @brief Enables the WSPI subsystem.
*/
#if !defined(HAL_USE_WSPI) || defined(__DOXYGEN__)
#define HAL_USE_WSPI FALSE
#endif
/*===========================================================================*/
/* PAL driver related settings. */
/*===========================================================================*/
/**
* @brief Enables synchronous APIs.
* @note Disabling this option saves both code and data space.
*/
#if !defined(PAL_USE_CALLBACKS) || defined(__DOXYGEN__)
#define PAL_USE_CALLBACKS FALSE
#endif
/**
* @brief Enables synchronous APIs.
* @note Disabling this option saves both code and data space.
*/
#if !defined(PAL_USE_WAIT) || defined(__DOXYGEN__)
#define PAL_USE_WAIT FALSE
#endif
/*===========================================================================*/
/* ADC driver related settings. */
/*===========================================================================*/
/**
* @brief Enables synchronous APIs.
* @note Disabling this option saves both code and data space.
*/
#if !defined(ADC_USE_WAIT) || defined(__DOXYGEN__)
#define ADC_USE_WAIT TRUE
#endif
/**
* @brief Enables the @p adcAcquireBus() and @p adcReleaseBus() APIs.
* @note Disabling this option saves both code and data space.
*/
#if !defined(ADC_USE_MUTUAL_EXCLUSION) || defined(__DOXYGEN__)
#define ADC_USE_MUTUAL_EXCLUSION TRUE
#endif
/*===========================================================================*/
/* CAN driver related settings. */
/*===========================================================================*/
/**
* @brief Sleep mode related APIs inclusion switch.
*/
#if !defined(CAN_USE_SLEEP_MODE) || defined(__DOXYGEN__)
#define CAN_USE_SLEEP_MODE TRUE
#endif
/**
* @brief Enforces the driver to use direct callbacks rather than OSAL events.
*/
#if !defined(CAN_ENFORCE_USE_CALLBACKS) || defined(__DOXYGEN__)
#define CAN_ENFORCE_USE_CALLBACKS FALSE
#endif
/*===========================================================================*/
/* CRY driver related settings. */
/*===========================================================================*/
/**
* @brief Enables the SW fall-back of the cryptographic driver.
* @details When enabled, this option, activates a fall-back software
* implementation for algorithms not supported by the underlying
* hardware.
* @note Fall-back implementations may not be present for all algorithms.
*/
#if !defined(HAL_CRY_USE_FALLBACK) || defined(__DOXYGEN__)
#define HAL_CRY_USE_FALLBACK FALSE
#endif
/**
* @brief Makes the driver forcibly use the fall-back implementations.
*/
#if !defined(HAL_CRY_ENFORCE_FALLBACK) || defined(__DOXYGEN__)
#define HAL_CRY_ENFORCE_FALLBACK FALSE
#endif
/*===========================================================================*/
/* DAC driver related settings. */
/*===========================================================================*/
/**
* @brief Enables synchronous APIs.
* @note Disabling this option saves both code and data space.
*/
#if !defined(DAC_USE_WAIT) || defined(__DOXYGEN__)
#define DAC_USE_WAIT TRUE
#endif
/**
* @brief Enables the @p dacAcquireBus() and @p dacReleaseBus() APIs.
* @note Disabling this option saves both code and data space.
*/
#if !defined(DAC_USE_MUTUAL_EXCLUSION) || defined(__DOXYGEN__)
#define DAC_USE_MUTUAL_EXCLUSION TRUE
#endif
/*===========================================================================*/
/* I2C driver related settings. */
/*===========================================================================*/
/**
* @brief Enables the mutual exclusion APIs on the I2C bus.
*/
#if !defined(I2C_USE_MUTUAL_EXCLUSION) || defined(__DOXYGEN__)
#define I2C_USE_MUTUAL_EXCLUSION TRUE
#endif
/*===========================================================================*/
/* MAC driver related settings. */
/*===========================================================================*/
/**
* @brief Enables the zero-copy API.
*/
#if !defined(MAC_USE_ZERO_COPY) || defined(__DOXYGEN__)
#define MAC_USE_ZERO_COPY FALSE
#endif
/**
* @brief Enables an event sources for incoming packets.
*/
#if !defined(MAC_USE_EVENTS) || defined(__DOXYGEN__)
#define MAC_USE_EVENTS TRUE
#endif
/*===========================================================================*/
/* MMC_SPI driver related settings. */
/*===========================================================================*/
/**
* @brief Timeout before assuming a failure while waiting for card idle.
* @note Time is in milliseconds.
*/
#if !defined(MMC_IDLE_TIMEOUT_MS) || defined(__DOXYGEN__)
#define MMC_IDLE_TIMEOUT_MS 1000
#endif
/**
* @brief Mutual exclusion on the SPI bus.
*/
#if !defined(MMC_USE_MUTUAL_EXCLUSION) || defined(__DOXYGEN__)
#define MMC_USE_MUTUAL_EXCLUSION TRUE
#endif
/*===========================================================================*/
/* SDC driver related settings. */
/*===========================================================================*/
/**
* @brief Number of initialization attempts before rejecting the card.
* @note Attempts are performed at 10mS intervals.
*/
#if !defined(SDC_INIT_RETRY) || defined(__DOXYGEN__)
#define SDC_INIT_RETRY 100
#endif
/**
* @brief Include support for MMC cards.
* @note MMC support is not yet implemented so this option must be kept
* at @p FALSE.
*/
#if !defined(SDC_MMC_SUPPORT) || defined(__DOXYGEN__)
#define SDC_MMC_SUPPORT FALSE
#endif
/**
* @brief Delays insertions.
* @details If enabled this options inserts delays into the MMC waiting
* routines releasing some extra CPU time for the threads with
* lower priority, this may slow down the driver a bit however.
*/
#if !defined(SDC_NICE_WAITING) || defined(__DOXYGEN__)
#define SDC_NICE_WAITING TRUE
#endif
/**
* @brief OCR initialization constant for V20 cards.
*/
#if !defined(SDC_INIT_OCR_V20) || defined(__DOXYGEN__)
#define SDC_INIT_OCR_V20 0x50FF8000U
#endif
/**
* @brief OCR initialization constant for non-V20 cards.
*/
#if !defined(SDC_INIT_OCR) || defined(__DOXYGEN__)
#define SDC_INIT_OCR 0x80100000U
#endif
/*===========================================================================*/
/* SERIAL driver related settings. */
/*===========================================================================*/
/**
* @brief Default bit rate.
* @details Configuration parameter, this is the baud rate selected for the
* default configuration.
*/
#if !defined(SERIAL_DEFAULT_BITRATE) || defined(__DOXYGEN__)
#define SERIAL_DEFAULT_BITRATE 115200
#endif
/**
* @brief Serial buffers size.
* @details Configuration parameter, you can change the depth of the queue
* buffers depending on the requirements of your application.
* @note The default is 16 bytes for both the transmission and receive
* buffers.
*/
#if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
#define SERIAL_BUFFERS_SIZE 16
#endif
/*===========================================================================*/
/* SIO driver related settings. */
/*===========================================================================*/
/**
* @brief Default bit rate.
* @details Configuration parameter, this is the baud rate selected for the
* default configuration.
*/
#if !defined(SIO_DEFAULT_BITRATE) || defined(__DOXYGEN__)
#define SIO_DEFAULT_BITRATE 38400
#endif
/**
* @brief Support for thread synchronization API.
*/
#if !defined(SIO_USE_SYNCHRONIZATION) || defined(__DOXYGEN__)
#define SIO_USE_SYNCHRONIZATION TRUE
#endif
/*===========================================================================*/
/* SERIAL_USB driver related setting. */
/*===========================================================================*/
/**
* @brief Serial over USB buffers size.
* @details Configuration parameter, the buffer size must be a multiple of
* the USB data endpoint maximum packet size.
* @note The default is 256 bytes for both the transmission and receive
* buffers.
*/
#if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
#define SERIAL_USB_BUFFERS_SIZE 256
#endif
/**
* @brief Serial over USB number of buffers.
* @note The default is 2 buffers.
*/
#if !defined(SERIAL_USB_BUFFERS_NUMBER) || defined(__DOXYGEN__)
#define SERIAL_USB_BUFFERS_NUMBER 2
#endif
/*===========================================================================*/
/* SPI driver related settings. */
/*===========================================================================*/
/**
* @brief Enables synchronous APIs.
* @note Disabling this option saves both code and data space.
*/
#if !defined(SPI_USE_WAIT) || defined(__DOXYGEN__)
#define SPI_USE_WAIT TRUE
#endif
/**
* @brief Inserts an assertion on function errors before returning.
*/
#if !defined(SPI_USE_ASSERT_ON_ERROR) || defined(__DOXYGEN__)
#define SPI_USE_ASSERT_ON_ERROR TRUE
#endif
/**
* @brief Enables the @p spiAcquireBus() and @p spiReleaseBus() APIs.
* @note Disabling this option saves both code and data space.
*/
#if !defined(SPI_USE_MUTUAL_EXCLUSION) || defined(__DOXYGEN__)
#define SPI_USE_MUTUAL_EXCLUSION TRUE
#endif
/**
* @brief Handling method for SPI CS line.
* @note Disabling this option saves both code and data space.
*/
#if !defined(SPI_SELECT_MODE) || defined(__DOXYGEN__)
#define SPI_SELECT_MODE SPI_SELECT_MODE_PAD
#endif
/*===========================================================================*/
/* UART driver related settings. */
/*===========================================================================*/
/**
* @brief Enables synchronous APIs.
* @note Disabling this option saves both code and data space.
*/
#if !defined(UART_USE_WAIT) || defined(__DOXYGEN__)
#define UART_USE_WAIT FALSE
#endif
/**
* @brief Enables the @p uartAcquireBus() and @p uartReleaseBus() APIs.
* @note Disabling this option saves both code and data space.
*/
#if !defined(UART_USE_MUTUAL_EXCLUSION) || defined(__DOXYGEN__)
#define UART_USE_MUTUAL_EXCLUSION FALSE
#endif
/*===========================================================================*/
/* USB driver related settings. */
/*===========================================================================*/
/**
* @brief Enables synchronous APIs.
* @note Disabling this option saves both code and data space.
*/
#if !defined(USB_USE_WAIT) || defined(__DOXYGEN__)
#define USB_USE_WAIT FALSE
#endif
/*===========================================================================*/
/* WSPI driver related settings. */
/*===========================================================================*/
/**
* @brief Enables synchronous APIs.
* @note Disabling this option saves both code and data space.
*/
#if !defined(WSPI_USE_WAIT) || defined(__DOXYGEN__)
#define WSPI_USE_WAIT TRUE
#endif
/**
* @brief Enables the @p wspiAcquireBus() and @p wspiReleaseBus() APIs.
* @note Disabling this option saves both code and data space.
*/
#if !defined(WSPI_USE_MUTUAL_EXCLUSION) || defined(__DOXYGEN__)
#define WSPI_USE_MUTUAL_EXCLUSION TRUE
#endif
#endif /* HALCONF_H */
/** @} */

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/*
ChibiOS - Copyright (C) 2006..2020 Giovanni Di Sirio
Licensed 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.
*/
/*
* STM32G0xx drivers configuration.
* The following settings override the default settings present in
* the various device driver implementation headers.
* Note that the settings for each driver only have effect if the whole
* driver is enabled in halconf.h.
*
* IRQ priorities:
* 3...0 Lowest...Highest.
*
* DMA priorities:
* 0...3 Lowest...Highest.
*/
#ifndef MCUCONF_H
#define MCUCONF_H
#define STM32G0xx_MCUCONF
#define STM32G031_MCUCONF
#define STM32G041_MCUCONF
/*
* HAL driver system settings.
*/
#define STM32_NO_INIT FALSE
#define STM32_CLOCK_DYNAMIC FALSE
#define STM32_VOS STM32_VOS_RANGE2
#define STM32_PWR_CR2 (STM32_PVDRT_LEV0 | STM32_PVDFT_LEV0 | STM32_PVDE_DISABLED)
#define STM32_PWR_CR3 (PWR_CR3_EIWUL)
#define STM32_PWR_CR4 (0U)
#define STM32_PWR_PUCRA (0U)
#define STM32_PWR_PDCRA (0U)
#define STM32_PWR_PUCRB (0U)
#define STM32_PWR_PDCRB (0U)
#define STM32_PWR_PUCRC (0U)
#define STM32_PWR_PDCRC (0U)
#define STM32_PWR_PUCRD (0U)
#define STM32_PWR_PDCRD (0U)
#define STM32_PWR_PUCRF (0U)
#define STM32_PWR_PDCRF (0U)
#define STM32_HSIDIV_VALUE 1
#define STM32_HSI16_ENABLED TRUE
#define STM32_HSE_ENABLED FALSE
#define STM32_LSI_ENABLED FALSE
#define STM32_LSE_ENABLED FALSE
#define STM32_SW STM32_SW_HSISYS
#define STM32_PLLSRC STM32_PLLSRC_NOCLOCK
#define STM32_PLLM_VALUE 2
#define STM32_PLLN_VALUE 8
#define STM32_PLLP_VALUE 4
#define STM32_PLLQ_VALUE 4
#define STM32_PLLR_VALUE 4
#define STM32_HPRE STM32_HPRE_DIV1
#define STM32_PPRE STM32_PPRE_DIV1
#define STM32_MCOSEL STM32_MCOSEL_NOCLOCK
#define STM32_MCOPRE STM32_MCOPRE_DIV1
#define STM32_LSCOSEL STM32_LSCOSEL_NOCLOCK
/*
* Peripherals clocks and sources.
*/
#define STM32_USART1SEL STM32_USART1SEL_PCLK
#define STM32_USART2SEL STM32_USART2SEL_PCLK
#define STM32_LPUART1SEL STM32_LPUART1SEL_PCLK
#define STM32_I2C1SEL STM32_I2C1SEL_PCLK
#define STM32_I2S1SEL STM32_I2S1SEL_HSI16
#define STM32_LPTIM1SEL STM32_LPTIM1SEL_PCLK
#define STM32_TIM1SEL STM32_TIM1SEL_TIMPCLK
#define STM32_RNGSEL STM32_RNGSEL_HSI16
#define STM32_RNGDIV_VALUE 1
#define STM32_ADCSEL STM32_ADCSEL_SYSCLK
#define STM32_RTCSEL STM32_RTCSEL_NOCLOCK
/*
* Shared IRQ settings.
*/
#define STM32_IRQ_EXTI0_1_PRIORITY 3
#define STM32_IRQ_EXTI2_3_PRIORITY 3
#define STM32_IRQ_EXTI4_15_PRIORITY 3
#define STM32_IRQ_EXTI1921_PRIORITY 3
#define STM32_IRQ_USART1_PRIORITY 2
#define STM32_IRQ_USART2_PRIORITY 2
#define STM32_IRQ_LPUART1_PRIORITY 2
#define STM32_IRQ_TIM1_UP_PRIORITY 1
#define STM32_IRQ_TIM1_CC_PRIORITY 1
#define STM32_IRQ_TIM2_PRIORITY 1
#define STM32_IRQ_TIM3_PRIORITY 1
#define STM32_IRQ_TIM14_PRIORITY 1
#define STM32_IRQ_TIM16_PRIORITY 1
#define STM32_IRQ_TIM17_PRIORITY 1
/*
* ADC driver system settings.
*/
#define STM32_ADC_USE_ADC1 FALSE
#define STM32_ADC_ADC1_CFGR2 ADC_CFGR2_CKMODE_ADCCLK
#define STM32_ADC_ADC1_DMA_PRIORITY 2
#define STM32_ADC_ADC1_DMA_IRQ_PRIORITY 2
#define STM32_ADC_ADC1_DMA_STREAM STM32_DMA_STREAM_ID_ANY
#define STM32_ADC_PRESCALER_VALUE 2
/*
* GPT driver system settings.
*/
#define STM32_GPT_USE_TIM1 FALSE
#define STM32_GPT_USE_TIM2 FALSE
#define STM32_GPT_USE_TIM3 FALSE
#define STM32_GPT_USE_TIM14 FALSE
#define STM32_GPT_USE_TIM16 FALSE
#define STM32_GPT_USE_TIM17 FALSE
/*
* I2C driver system settings.
*/
#define STM32_I2C_USE_I2C1 FALSE
#define STM32_I2C_USE_I2C2 FALSE
#define STM32_I2C_BUSY_TIMEOUT 50
#define STM32_I2C_I2C1_RX_DMA_STREAM STM32_DMA_STREAM_ID_ANY
#define STM32_I2C_I2C1_TX_DMA_STREAM STM32_DMA_STREAM_ID_ANY
#define STM32_I2C_I2C2_RX_DMA_STREAM STM32_DMA_STREAM_ID_ANY
#define STM32_I2C_I2C2_TX_DMA_STREAM STM32_DMA_STREAM_ID_ANY
#define STM32_I2C_I2C1_IRQ_PRIORITY 3
#define STM32_I2C_I2C2_IRQ_PRIORITY 3
#define STM32_I2C_I2C1_DMA_PRIORITY 3
#define STM32_I2C_I2C2_DMA_PRIORITY 3
#define STM32_I2C_DMA_ERROR_HOOK(i2cp) osalSysHalt("DMA failure")
/*
* ICU driver system settings.
*/
#define STM32_ICU_USE_TIM1 FALSE
#define STM32_ICU_USE_TIM2 FALSE
#define STM32_ICU_USE_TIM3 FALSE
/*
* PWM driver system settings.
*/
#define STM32_PWM_USE_TIM1 FALSE
#define STM32_PWM_USE_TIM2 FALSE
#define STM32_PWM_USE_TIM3 FALSE
#define STM32_PWM_USE_TIM14 FALSE
#define STM32_PWM_USE_TIM16 FALSE
#define STM32_PWM_USE_TIM17 FALSE
/*
* RTC driver system settings.
*/
#define STM32_RTC_PRESA_VALUE 32
#define STM32_RTC_PRESS_VALUE 1024
#define STM32_RTC_CR_INIT 0
#define STM32_RTC_TAMPCR_INIT 0
/*
* SERIAL driver system settings.
*/
#define STM32_SERIAL_USE_USART1 FALSE
#define STM32_SERIAL_USE_USART2 TRUE
#define STM32_SERIAL_USE_LPUART1 FALSE
/*
* SIO driver system settings.
*/
#define STM32_SIO_USE_USART1 FALSE
#define STM32_SIO_USE_USART2 FALSE
#define STM32_SIO_USE_LPUART1 FALSE
/*
* SPI driver system settings.
*/
#define STM32_SPI_USE_SPI1 FALSE
#define STM32_SPI_USE_SPI2 FALSE
#define STM32_SPI_SPI1_RX_DMA_STREAM STM32_DMA_STREAM_ID_ANY
#define STM32_SPI_SPI1_TX_DMA_STREAM STM32_DMA_STREAM_ID_ANY
#define STM32_SPI_SPI2_RX_DMA_STREAM STM32_DMA_STREAM_ID_ANY
#define STM32_SPI_SPI2_TX_DMA_STREAM STM32_DMA_STREAM_ID_ANY
#define STM32_SPI_SPI1_DMA_PRIORITY 1
#define STM32_SPI_SPI2_DMA_PRIORITY 1
#define STM32_SPI_SPI1_IRQ_PRIORITY 2
#define STM32_SPI_SPI2_IRQ_PRIORITY 2
#define STM32_SPI_DMA_ERROR_HOOK(spip) osalSysHalt("DMA failure")
#define STM32_I2S_USE_SPI1 TRUE
#define STM32_I2S_SPI1_RX_DMA_STREAM STM32_DMA_STREAM_ID_ANY
#define STM32_I2S_SPI1_TX_DMA_STREAM STM32_DMA_STREAM_ID_ANY
#define STM32_I2S_SPI1_IRQ_PRIORITY 2
/*
* ST driver system settings.
*/
#define STM32_ST_IRQ_PRIORITY 2
#define STM32_ST_USE_TIMER 2
/*
* TRNG driver system settings.
* NOTE: STM32G041 only.
*/
#define STM32_TRNG_USE_RNG1 FALSE
/*
* UART driver system settings.
*/
#define STM32_UART_USE_USART1 FALSE
#define STM32_UART_USE_USART2 FALSE
#define STM32_UART_USART1_RX_DMA_STREAM STM32_DMA_STREAM_ID_ANY
#define STM32_UART_USART1_TX_DMA_STREAM STM32_DMA_STREAM_ID_ANY
#define STM32_UART_USART2_RX_DMA_STREAM STM32_DMA_STREAM_ID_ANY
#define STM32_UART_USART2_TX_DMA_STREAM STM32_DMA_STREAM_ID_ANY
#define STM32_UART_USART1_DMA_PRIORITY 0
#define STM32_UART_USART2_DMA_PRIORITY 0
#define STM32_UART_DMA_ERROR_HOOK(uartp) osalSysHalt("DMA failure")
/*
* WDG driver system settings.
*/
#define STM32_WDG_USE_IWDG FALSE
#endif /* MCUCONF_H */

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#include "hal.h"
#include "ch.h"
#include "sos-iir-filter.h"
#include <algorithm>
#include <array>
#include <cstring>
#include <ranges>
static constexpr auto& WEIGHTING = A_weighting;
static constexpr auto& MIC_EQUALIZER = SPH0645LM4H_B_RB;
static constexpr sos_t MIC_OFFSET_DB ( 0.f); // Linear offset
static constexpr sos_t MIC_SENSITIVITY (-26.f); // dBFS value expected at MIC_REF_DB
static constexpr sos_t MIC_REF_DB ( 94.f); // dB where sensitivity is specified
static constexpr sos_t MIC_OVERLOAD_DB (120.f); // dB - Acoustic overload point
static constexpr sos_t MIC_NOISE_DB ( 29.f); // dB - Noise floor
static constexpr auto MIC_BITS = 16u; // SPH0645 is actually 18 bits
static constexpr auto SAMPLE_RATE = 32000u;
static constexpr unsigned I2S_BUFSIZ = 512; // was 1024
static constexpr unsigned I2S_STRIDE = 16; // was 8
// Calculate reference amplitude value at compile time
static const auto MIC_REF_AMPL = fpm::pow(sos_t(10), MIC_SENSITIVITY / 20) *
((1 << (MIC_BITS - 1)) - 1);
static SEMAPHORE_DECL(i2sReady, 0);
static THD_WORKING_AREA(waThread1, 128);
static std::array<uint32_t, I2S_BUFSIZ> i2sBuffer;
static sos_t Leq_sum_sqr (0);
static unsigned Leq_samples = 0;
static THD_FUNCTION(Thread1, arg);
static void i2sCallback(I2SDriver *i2s);
static constexpr auto I2SPRval = SAMPLE_RATE * 64 / 1000 / 1024 * 2;
static constexpr I2SConfig i2sConfig = {
/* TX buffer */ NULL,
/* RX buffer */ i2sBuffer.data(),
/* Size */ i2sBuffer.size(),
/* Callback */ i2sCallback,
/* I2SCFGR */ (3 << SPI_I2SCFGR_I2SCFG_Pos) | // Master receive
(0 << SPI_I2SCFGR_I2SSTD_Pos) | // Philips I2S
(1 << SPI_I2SCFGR_DATLEN_Pos) | // 24-bit
SPI_I2SCFGR_CHLEN, // 32-bit frame
/* I2SPR */ I2SPRval | (((I2SPRval / 2) & 1) ? SPI_I2SPR_ODD : 0)
};
THD_TABLE_BEGIN
THD_TABLE_THREAD(0, "blinker1", waThread1, Thread1, NULL)
THD_TABLE_END
int main(void)
{
halInit();
chSysInit();
for (;;)
asm("wfi");
}
THD_FUNCTION(Thread1, arg)
{
(void)arg;
chThdSleepMilliseconds(2000);
palSetPadMode(GPIOF, 2, PAL_MODE_UNCONNECTED);
palSetLineMode(LINE_I2S_SD, PAL_MODE_ALTERNATE(0));
palSetLineMode(LINE_I2S_WS, PAL_MODE_ALTERNATE(0));
palSetLineMode(LINE_I2S_CK, PAL_MODE_ALTERNATE(0));
palSetLineMode(LINE_USART2_TX, PAL_MODE_ALTERNATE(1));
sdStart(&SD2, NULL);
sdWrite(&SD2, (uint8_t *)"Noisemeter\n", 11);
chThdSleepMilliseconds(100);
i2sStart(&I2SD1, &i2sConfig);
i2sStartExchange(&I2SD1);
uint8_t strbuf[7] = { 0, 0, 0, 'd', 'B', '\n', '\0' };
for (;;) {
chSemWait(&i2sReady);
const auto Leq_RMS = fpm::sqrt(Leq_sum_sqr / Leq_samples);
const auto Leq_dB = MIC_OFFSET_DB + MIC_REF_DB + 20 *
fpm::log10(Leq_RMS / MIC_REF_AMPL);
Leq_sum_sqr = sos_t(0);
Leq_samples = 0;
auto n = std::clamp(static_cast<int32_t>(Leq_dB), 0l, 999l);
strbuf[2] = n % 10 + '0'; n /= 10;
strbuf[1] = n % 10 + '0'; n /= 10;
strbuf[0] = n ? n + '0' : ' ';
sdWrite(&SD2, strbuf, sizeof(strbuf));
}
}
void i2sCallback(I2SDriver *i2s)
{
// Note: samples come in as 16-bit big-endian, so for simplicity we just
// take the "high" 16-bits of valid data and drop the rest. Mic is
// technically 18-bit, so we are losing some precision.
const auto halfsize = i2sBuffer.size() / 2;
const auto offset = i2sIsBufferComplete(i2s) ? halfsize : 0;
auto samples = reinterpret_cast<sos_t *>(i2sBuffer.data() + offset);
std::ranges::copy(
std::views::counted(i2sBuffer.begin() + offset, halfsize)
| std::ranges::views::stride(2 * I2S_STRIDE)
| std::views::transform([](auto s) { return sos_t((int16_t)s); }),
samples);
auto samps = std::views::counted(samples, halfsize / (2 * I2S_STRIDE));
// Accumulate Leq sum
MIC_EQUALIZER.filter(samps);
Leq_sum_sqr += WEIGHTING.filter_sum_sqr(samps);
Leq_samples += samps.size();
// Wakeup main thread for dB calculation every second
if (Leq_samples >= 2 * SAMPLE_RATE / I2S_STRIDE) {
chSemSignalI(&i2sReady);
}
}

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sos-iir-filter.h
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/*
* ESP32 Second-Order Sections IIR Filter implementation
*
* (c)2019 Ivan Kostoski
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef SOS_IIR_FILTER_H
#define SOS_IIR_FILTER_H
#include <algorithm>
#include <array>
#include <cstdint>
#include <ranges>
#include <utility>
#include <cmath>
namespace fpm = std;
using sos_t = float;
//#include <fpm/math.hpp>
//using sos_t = fpm::fixed_16_16;
struct SOS_Coefficients {
sos_t b1;
sos_t b2;
sos_t a1;
sos_t a2;
};
struct SOS_Delay_State {
sos_t w0;
sos_t w1;
};
/**
* Envelops above asm functions into C++ class
*/
template<std::size_t N>
struct SOS_IIR_Filter {
const sos_t gain;
std::array<SOS_Coefficients, N> sos;
std::array<SOS_Delay_State, N> w;
// Template constructor for const filter declaration
constexpr SOS_IIR_Filter(const sos_t gain, const SOS_Coefficients (&_sos)[N]):
gain(gain)
{
std::copy(_sos, _sos + N, sos.begin());
}
void filter(auto samples) {
// Apply all but last Second-Order-Section
for ([[maybe_unused]] auto _ : std::views::zip_transform(
[](auto samps, const auto& coeffs, auto& ww) {
// Assumes a0 and b0 coefficients are one (1.0)
for (auto& s : samps) {
auto f6 = s + coeffs.a1 * ww.w0 + coeffs.a2 * ww.w1;
s = f6 + coeffs.b1 * ww.w0 + coeffs.b2 * ww.w1;
ww.w1 = std::exchange(ww.w0, f6);
}
return 0;
},
std::views::repeat(samples, N), sos, w)) {}
}
sos_t filter_sum_sqr(auto samples) {
filter(samples);
return std::ranges::fold_left(samples, sos_t(0),
[this](auto a, auto b) { return a + b * gain * b * gain; });
}
};
#endif // SOS_IIR_FILTER_H
// Knowles SPH0645LM4H-B, rev. B
// https://cdn-shop.adafruit.com/product-files/3421/i2S+Datasheet.PDF
// B ~= [1.001234, -1.991352, 0.990149]
// A ~= [1.0, -1.993853, 0.993863]
// With additional DC blocking component
SOS_IIR_Filter SPH0645LM4H_B_RB = {
/* gain: */ sos_t(1.00123377961525),
/* sos: */ { // Second-Order Sections {b1, b2, -a1, -a2}
{ sos_t(-1.0), sos_t(0.0),
sos_t(+0.9992), sos_t(0) }, // DC blocker, a1 = -0.9992
{ sos_t(-1.988897663539382), sos_t(+0.988928479008099),
sos_t(+1.993853376183491), sos_t(-0.993862821429572) } }
};
//
// A-weighting IIR Filter, Fs = 48KHz
// (By Dr. Matt L., Source: https://dsp.stackexchange.com/a/36122)
// B = [0.169994948147430, 0.280415310498794, -1.120574766348363, 0.131562559965936, 0.974153561246036, -0.282740857326553, -0.152810756202003]
// A = [1.0, -2.12979364760736134, 0.42996125885751674, 1.62132698199721426, -0.96669962900852902, 0.00121015844426781, 0.04400300696788968]
SOS_IIR_Filter A_weighting = {
/* gain: */ sos_t(0.169994948147430),
/* sos: */ { // Second-Order Sections {b1, b2, -a1, -a2}
{ sos_t(-2.00026996133106), sos_t(+1.00027056142719),
sos_t(-1.060868438509278), sos_t(-0.163987445885926) },
{ sos_t(+4.35912384203144), sos_t(+3.09120265783884),
sos_t(+1.208419926363593), sos_t(-0.273166998428332) },
{ sos_t(-0.70930303489759), sos_t(-0.29071868393580),
sos_t(+1.982242159753048), sos_t(-0.982298594928989) } }
};
////
//// C-weighting IIR Filter, Fs = 48KHz
//// Designed by invfreqz curve-fitting, see respective .m file
//// B = [-0.49164716933714026, 0.14844753846498662, 0.74117815661529129, -0.03281878334039314, -0.29709276192593875, -0.06442545322197900, -0.00364152725482682]
//// A = [1.0, -1.0325358998928318, -0.9524000181023488, 0.8936404694728326 0.2256286147169398 -0.1499917107550188, 0.0156718181681081]
//SOS_IIR_Filter C_weighting = {
// gain: -0.491647169337140,
// sos: {
// { +1.4604385758204708, +0.5275070373815286, +1.9946144559930252, -0.9946217070140883 },
// { +0.2376222404939509, +0.0140411206016894, -1.3396585608422749, -0.4421457807694559 },
// { -2.0000000000000000, +1.0000000000000000, +0.3775800047420818, -0.0356365756680430 } }
//};
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