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Ajit Ananthadevan 2025-08-23 02:26:08 +10:00
commit fba966056a
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.gitignore vendored Normal file
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/vendor/STM32CubeG0/
build/
.cache/
compile_commands.json

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README.md Normal file
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## stm32g0 cubeHAL projects
After cloning,
```
cd <into this dir>
cd vendor
git clone --recursive https://github.com/STMicroelectronics/STM32CubeG0.git
```

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myapps/first-hal/Makefile Normal file
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######################################
# target
######################################
TARGET = stm32g0_blinky
PART = STM32G030xx # check for pyocd
######################################
# building variables
######################################
# debug build?
DEBUG = 1
# optimization for size
OPT = -Os
#######################################
# paths
#######################################
# Build path
BUILD_DIR = build
VND_DIR = ../../vendor
######################################
# source
######################################
# C sources
include hal.mk
C_SOURCES += \
$(VND_DIR)/STM32CubeG0/Drivers/CMSIS/Device/ST/STM32G0xx/Source/Templates/system_stm32g0xx.c \
src/main.c
# ASM sources
ASM_SOURCES = \
$(VND_DIR)/STM32CubeG0/Drivers/CMSIS/Device/ST/STM32G0xx/Source/Templates/gcc/startup_stm32g030xx.s
#######################################
# binaries
#######################################
PREFIX = arm-none-eabi-
CC = $(PREFIX)gcc
CP = $(PREFIX)objcopy
#SZ = $(PREFIX)size
BIN = $(CP) -O binary -S
#######################################
# CFLAGS
#######################################
# cpu
CPU = \
-mcpu=cortex-m0plus \
-mthumb
DEFINES = -D$(PART)
# fpu
FPU =
# float-abi
FLOAT-ABI =
# mcu
MCU = $(CPU) $(FPU) $(FLOAT-ABI)
# C includes
C_INCLUDES += \
-Isrc/inc \
-I$(VND_DIR)/STM32CubeG0/Drivers/CMSIS/Core/Include \
-I$(VND_DIR)/STM32CubeG0/Drivers/CMSIS/Device/ST/STM32G0xx/Include
# compile gcc flags
ADDN_CFLAGS = \
-Wall \
-fno-common \
-fdata-sections \
-ffunction-sections
CFLAGS = $(MCU) $(ADDN_CFLAGS) $(C_INCLUDES) $(OPT) $(DEFINES)
ifeq ($(DEBUG), 1)
CFLAGS += -ggdb3
endif
# Generate dependency information
#CFLAGS += -MMD -MP -MF"$(@:%.o=%.d)"
#######################################
# LDFLAGS
#######################################
# link script
LDSCRIPT = $(VND_DIR)/Ld/STM32G030F6MX_FLASH.ld
LIBDIR =
LDFLAGS = \
$(MCU) \
-T $(LDSCRIPT) \
--specs=nano.specs \
-Wl,--gc-sections \
-Wl,--print-memory-usage \
-Wl,--no-warn-rwx-segments
# default action: build all
all: $(BUILD_DIR)/$(TARGET).elf $(BUILD_DIR)/$(TARGET).bin
#######################################
# build the application
#######################################
# list of objects
OBJECTS = $(addprefix $(BUILD_DIR)/,$(notdir $(C_SOURCES:.c=.o)))
vpath %.c $(sort $(dir $(C_SOURCES)))
$(BUILD_DIR)/%.o: %.c Makefile | $(BUILD_DIR)
$(CC) -c $(CFLAGS) -Wa,-a,-ad,-alms=$(BUILD_DIR)/$(notdir $(<:.c=.lst)) $< -o $@
#$(LUAOBJECTS) $(OBJECTS)
$(BUILD_DIR)/$(TARGET).elf: $(OBJECTS) Makefile
$(CC) $(OBJECTS) $(LDFLAGS) $(ASM_SOURCES) -o $@
$(BUILD_DIR)/%.bin: $(BUILD_DIR)/%.elf | $(BUILD_DIR)
$(BIN) $< $@
$(BUILD_DIR):
mkdir $@
#######################################
# Program
#######################################
flash: $(BUILD_DIR)/$(TARGET).bin
pyocd load --target $(PART) $(BUILD_DIR)/$(TARGET).bin
#######################################
# clean up
#######################################
clean:
-rm -fR $(BUILD_DIR)
# *** EOF ***

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C_INCLUDES += \
-I$(VND_DIR)/STM32CubeG0/Drivers/STM32G0xx_HAL_Driver/Inc
C_SOURCES += \
$(VND_DIR)/STM32CubeG0/Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal.c \
$(VND_DIR)/STM32CubeG0/Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal_cortex.c \
$(VND_DIR)/STM32CubeG0/Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal_pwr.c \
$(VND_DIR)/STM32CubeG0/Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal_pwr_ex.c \
$(VND_DIR)/STM32CubeG0/Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal_rcc.c \
$(VND_DIR)/STM32CubeG0/Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal_rcc_ex.c \
$(VND_DIR)/STM32CubeG0/Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal_exti.c \
$(VND_DIR)/STM32CubeG0/Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal_dma.c \
$(VND_DIR)/STM32CubeG0/Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal_dma_ex.c \
$(VND_DIR)/STM32CubeG0/Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal_flash.c \
$(VND_DIR)/STM32CubeG0/Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal_flash_ex.c \
$(VND_DIR)/STM32CubeG0/Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal_gpio.c

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/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file stm32g0xx_hal_conf.h
* @author MCD Application Team
* @brief HAL configuration file.
******************************************************************************
* @attention
*
* Copyright (c) 2018-2020 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* USER CODE END Header */
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef STM32G0xx_HAL_CONF_H
#define STM32G0xx_HAL_CONF_H
#ifdef __cplusplus
extern "C" {
#endif
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/* ########################## Module Selection ############################## */
/**
* @brief This is the list of modules to be used in the HAL driver
*/
#define HAL_MODULE_ENABLED
/* #define HAL_ADC_MODULE_ENABLED */
/* #define HAL_CEC_MODULE_ENABLED */
/* #define HAL_COMP_MODULE_ENABLED */
/* #define HAL_CRC_MODULE_ENABLED */
/* #define HAL_CRYP_MODULE_ENABLED */
/* #define HAL_DAC_MODULE_ENABLED */
/* #define HAL_EXTI_MODULE_ENABLED */
/* #define HAL_FDCAN_MODULE_ENABLED */
/* #define HAL_HCD_MODULE_ENABLED */
/* #define HAL_I2C_MODULE_ENABLED */
/* #define HAL_I2S_MODULE_ENABLED */
/* #define HAL_IWDG_MODULE_ENABLED */
/* #define HAL_IRDA_MODULE_ENABLED */
/* #define HAL_LPTIM_MODULE_ENABLED */
/* #define HAL_PCD_MODULE_ENABLED */
/* #define HAL_RNG_MODULE_ENABLED */
/* #define HAL_RTC_MODULE_ENABLED */
/* #define HAL_SMARTCARD_MODULE_ENABLED */
/* #define HAL_SMBUS_MODULE_ENABLED */
/* #define HAL_SPI_MODULE_ENABLED */
/* #define HAL_TIM_MODULE_ENABLED */
/* #define HAL_UART_MODULE_ENABLED */
/* #define HAL_USART_MODULE_ENABLED */
/* #define HAL_WWDG_MODULE_ENABLED */
#define HAL_GPIO_MODULE_ENABLED
#define HAL_EXTI_MODULE_ENABLED
#define HAL_DMA_MODULE_ENABLED
#define HAL_RCC_MODULE_ENABLED
#define HAL_FLASH_MODULE_ENABLED
#define HAL_PWR_MODULE_ENABLED
#define HAL_CORTEX_MODULE_ENABLED
/* ########################## Register Callbacks selection ############################## */
/**
* @brief This is the list of modules where register callback can be used
*/
#define USE_HAL_ADC_REGISTER_CALLBACKS 0u
#define USE_HAL_CEC_REGISTER_CALLBACKS 0u
#define USE_HAL_COMP_REGISTER_CALLBACKS 0u
#define USE_HAL_CRYP_REGISTER_CALLBACKS 0u
#define USE_HAL_DAC_REGISTER_CALLBACKS 0u
#define USE_HAL_FDCAN_REGISTER_CALLBACKS 0u
#define USE_HAL_HCD_REGISTER_CALLBACKS 0u
#define USE_HAL_I2C_REGISTER_CALLBACKS 0u
#define USE_HAL_I2S_REGISTER_CALLBACKS 0u
#define USE_HAL_IRDA_REGISTER_CALLBACKS 0u
#define USE_HAL_LPTIM_REGISTER_CALLBACKS 0u
#define USE_HAL_PCD_REGISTER_CALLBACKS 0u
#define USE_HAL_RNG_REGISTER_CALLBACKS 0u
#define USE_HAL_RTC_REGISTER_CALLBACKS 0u
#define USE_HAL_SMBUS_REGISTER_CALLBACKS 0u
#define USE_HAL_SPI_REGISTER_CALLBACKS 0u
#define USE_HAL_TIM_REGISTER_CALLBACKS 0u
#define USE_HAL_UART_REGISTER_CALLBACKS 0u
#define USE_HAL_USART_REGISTER_CALLBACKS 0u
#define USE_HAL_WWDG_REGISTER_CALLBACKS 0u
/* ########################## Oscillator Values adaptation ####################*/
/**
* @brief Adjust the value of External High Speed oscillator (HSE) used in your application.
* This value is used by the RCC HAL module to compute the system frequency
* (when HSE is used as system clock source, directly or through the PLL).
*/
#if !defined (HSE_VALUE)
#define HSE_VALUE (8000000UL) /*!< Value of the External oscillator in Hz */
#endif /* HSE_VALUE */
#if !defined (HSE_STARTUP_TIMEOUT)
#define HSE_STARTUP_TIMEOUT (100UL) /*!< Time out for HSE start up, in ms */
#endif /* HSE_STARTUP_TIMEOUT */
/**
* @brief Internal High Speed oscillator (HSI) value.
* This value is used by the RCC HAL module to compute the system frequency
* (when HSI is used as system clock source, directly or through the PLL).
*/
#if !defined (HSI_VALUE)
#define HSI_VALUE (16000000UL) /*!< Value of the Internal oscillator in Hz*/
#endif /* HSI_VALUE */
#if defined(STM32G0C1xx) || defined(STM32G0B1xx) || defined(STM32G0B0xx)
/**
* @brief Internal High Speed oscillator (HSI48) value for USB FS, SDMMC and RNG.
* This internal oscillator is mainly dedicated to provide a high precision clock to
* the USB peripheral by means of a special Clock Recovery System (CRS) circuitry.
* When the CRS is not used, the HSI48 RC oscillator runs on it default frequency
* which is subject to manufacturing process variations.
*/
#if !defined (HSI48_VALUE)
#define HSI48_VALUE 48000000U /*!< Value of the Internal High Speed oscillator for USB FS/SDMMC/RNG in Hz.
The real value my vary depending on manufacturing process variations.*/
#endif /* HSI48_VALUE */
#endif
/**
* @brief Internal Low Speed oscillator (LSI) value.
*/
#if !defined (LSI_VALUE)
#define LSI_VALUE (32000UL) /*!< LSI Typical Value in Hz*/
#endif /* LSI_VALUE */ /*!< Value of the Internal Low Speed oscillator in Hz
The real value may vary depending on the variations
in voltage and temperature.*/
/**
* @brief External Low Speed oscillator (LSE) value.
* This value is used by the UART, RTC HAL module to compute the system frequency
*/
#if !defined (LSE_VALUE)
#define LSE_VALUE (32768UL) /*!< Value of the External oscillator in Hz*/
#endif /* LSE_VALUE */
#if !defined (LSE_STARTUP_TIMEOUT)
#define LSE_STARTUP_TIMEOUT (5000UL) /*!< Time out for LSE start up, in ms */
#endif /* LSE_STARTUP_TIMEOUT */
/**
* @brief External clock source for I2S1 peripheral
* This value is used by the RCC HAL module to compute the I2S1 clock source
* frequency.
*/
#if !defined (EXTERNAL_I2S1_CLOCK_VALUE)
#define EXTERNAL_I2S1_CLOCK_VALUE (48000UL) /*!< Value of the I2S1 External clock source in Hz*/
#endif /* EXTERNAL_I2S1_CLOCK_VALUE */
#if defined(STM32G0C1xx) || defined(STM32G0B1xx) || defined(STM32G0B0xx)
/**
* @brief External clock source for I2S2 peripheral
* This value is used by the RCC HAL module to compute the I2S2 clock source
* frequency.
*/
#if !defined (EXTERNAL_I2S2_CLOCK_VALUE)
#define EXTERNAL_I2S2_CLOCK_VALUE 48000U /*!< Value of the I2S2 External clock source in Hz*/
#endif /* EXTERNAL_I2S2_CLOCK_VALUE */
#endif
/* Tip: To avoid modifying this file each time you need to use different HSE,
=== you can define the HSE value in your toolchain compiler preprocessor. */
/* ########################### System Configuration ######################### */
/**
* @brief This is the HAL system configuration section
*/
#define VDD_VALUE (3300UL) /*!< Value of VDD in mv */
#define TICK_INT_PRIORITY 0U /*!< tick interrupt priority */
#define USE_RTOS 0U
#define PREFETCH_ENABLE 1U
#define INSTRUCTION_CACHE_ENABLE 1U
/* ################## SPI peripheral configuration ########################## */
/* CRC FEATURE: Use to activate CRC feature inside HAL SPI Driver
* Activated: CRC code is present inside driver
* Deactivated: CRC code cleaned from driver
*/
#define USE_SPI_CRC 0U
/* ################## CRYP peripheral configuration ########################## */
#define USE_HAL_CRYP_SUSPEND_RESUME 1U
/* ########################## Assert Selection ############################## */
/**
* @brief Uncomment the line below to expanse the "assert_param" macro in the
* HAL drivers code
*/
/* #define USE_FULL_ASSERT 1U */
/* Includes ------------------------------------------------------------------*/
/**
* @brief Include modules header file
*/
#ifdef HAL_RCC_MODULE_ENABLED
#include "stm32g0xx_hal_rcc.h"
#endif /* HAL_RCC_MODULE_ENABLED */
#ifdef HAL_GPIO_MODULE_ENABLED
#include "stm32g0xx_hal_gpio.h"
#endif /* HAL_GPIO_MODULE_ENABLED */
#ifdef HAL_DMA_MODULE_ENABLED
#include "stm32g0xx_hal_dma.h"
#endif /* HAL_DMA_MODULE_ENABLED */
#ifdef HAL_CORTEX_MODULE_ENABLED
#include "stm32g0xx_hal_cortex.h"
#endif /* HAL_CORTEX_MODULE_ENABLED */
#ifdef HAL_ADC_MODULE_ENABLED
#include "stm32g0xx_hal_adc.h"
#include "stm32g0xx_hal_adc_ex.h"
#endif /* HAL_ADC_MODULE_ENABLED */
#ifdef HAL_CEC_MODULE_ENABLED
#include "stm32g0xx_hal_cec.h"
#endif /* HAL_CEC_MODULE_ENABLED */
#ifdef HAL_COMP_MODULE_ENABLED
#include "stm32g0xx_hal_comp.h"
#endif /* HAL_COMP_MODULE_ENABLED */
#ifdef HAL_CRC_MODULE_ENABLED
#include "stm32g0xx_hal_crc.h"
#endif /* HAL_CRC_MODULE_ENABLED */
#ifdef HAL_CRYP_MODULE_ENABLED
#include "stm32g0xx_hal_cryp.h"
#endif /* HAL_CRYP_MODULE_ENABLED */
#ifdef HAL_DAC_MODULE_ENABLED
#include "stm32g0xx_hal_dac.h"
#endif /* HAL_DAC_MODULE_ENABLED */
#ifdef HAL_EXTI_MODULE_ENABLED
#include "stm32g0xx_hal_exti.h"
#endif /* HAL_EXTI_MODULE_ENABLED */
#ifdef HAL_FLASH_MODULE_ENABLED
#include "stm32g0xx_hal_flash.h"
#endif /* HAL_FLASH_MODULE_ENABLED */
#ifdef HAL_FDCAN_MODULE_ENABLED
#include "stm32g0xx_hal_fdcan.h"
#endif /* HAL_FDCAN_MODULE_ENABLED */
#ifdef HAL_HCD_MODULE_ENABLED
#include "stm32g0xx_hal_hcd.h"
#endif /* HAL_HCD_MODULE_ENABLED */
#ifdef HAL_I2C_MODULE_ENABLED
#include "stm32g0xx_hal_i2c.h"
#endif /* HAL_I2C_MODULE_ENABLED */
#ifdef HAL_I2S_MODULE_ENABLED
#include "stm32g0xx_hal_i2s.h"
#endif /* HAL_I2S_MODULE_ENABLED */
#ifdef HAL_IRDA_MODULE_ENABLED
#include "stm32g0xx_hal_irda.h"
#endif /* HAL_IRDA_MODULE_ENABLED */
#ifdef HAL_IWDG_MODULE_ENABLED
#include "stm32g0xx_hal_iwdg.h"
#endif /* HAL_IWDG_MODULE_ENABLED */
#ifdef HAL_LPTIM_MODULE_ENABLED
#include "stm32g0xx_hal_lptim.h"
#endif /* HAL_LPTIM_MODULE_ENABLED */
#ifdef HAL_PCD_MODULE_ENABLED
#include "stm32g0xx_hal_pcd.h"
#endif /* HAL_PCD_MODULE_ENABLED */
#ifdef HAL_PWR_MODULE_ENABLED
#include "stm32g0xx_hal_pwr.h"
#endif /* HAL_PWR_MODULE_ENABLED */
#ifdef HAL_RNG_MODULE_ENABLED
#include "stm32g0xx_hal_rng.h"
#endif /* HAL_RNG_MODULE_ENABLED */
#ifdef HAL_RTC_MODULE_ENABLED
#include "stm32g0xx_hal_rtc.h"
#endif /* HAL_RTC_MODULE_ENABLED */
#ifdef HAL_SMARTCARD_MODULE_ENABLED
#include "stm32g0xx_hal_smartcard.h"
#endif /* HAL_SMARTCARD_MODULE_ENABLED */
#ifdef HAL_SMBUS_MODULE_ENABLED
#include "stm32g0xx_hal_smbus.h"
#endif /* HAL_SMBUS_MODULE_ENABLED */
#ifdef HAL_SPI_MODULE_ENABLED
#include "stm32g0xx_hal_spi.h"
#endif /* HAL_SPI_MODULE_ENABLED */
#ifdef HAL_TIM_MODULE_ENABLED
#include "stm32g0xx_hal_tim.h"
#endif /* HAL_TIM_MODULE_ENABLED */
#ifdef HAL_UART_MODULE_ENABLED
#include "stm32g0xx_hal_uart.h"
#endif /* HAL_UART_MODULE_ENABLED */
#ifdef HAL_USART_MODULE_ENABLED
#include "stm32g0xx_hal_usart.h"
#endif /* HAL_USART_MODULE_ENABLED */
#ifdef HAL_WWDG_MODULE_ENABLED
#include "stm32g0xx_hal_wwdg.h"
#endif /* HAL_WWDG_MODULE_ENABLED */
/* Exported macro ------------------------------------------------------------*/
#ifdef USE_FULL_ASSERT
/**
* @brief The assert_param macro is used for functions parameters check.
* @param expr If expr is false, it calls assert_failed function
* which reports the name of the source file and the source
* line number of the call that failed.
* If expr is true, it returns no value.
* @retval None
*/
#define assert_param(expr) ((expr) ? (void)0U : assert_failed((uint8_t *)__FILE__, __LINE__))
/* Exported functions ------------------------------------------------------- */
void assert_failed(uint8_t *file, uint32_t line);
#else
#define assert_param(expr) ((void)0U)
#endif /* USE_FULL_ASSERT */
#ifdef __cplusplus
}
#endif
#endif /* STM32G0xx_HAL_CONF_H */

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//#include <stdint.h>
#include "stm32g0xx_hal.h"
#define LED_PIN 4
int main(void)
{
HAL_Init();
__HAL_RCC_GPIOA_CLK_ENABLE();
GPIO_InitTypeDef GPIO_InitStruct;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
GPIO_InitStruct.Pin = GPIO_PIN_4;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
while(1)
{
HAL_GPIO_TogglePin(GPIOA, GPIO_PIN_4);
HAL_Delay(100);
}
}

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######################################
# target
######################################
TARGET = stm32g0_blinky
PART = STM32G030xx # check for pyocd
######################################
# building variables
######################################
# debug build?
DEBUG = 1
# optimization for size
OPT = -Os
#######################################
# paths
#######################################
# Build path
BUILD_DIR = build
VND_DIR = ../../vendor
######################################
# source
######################################
# C sources
include hal.mk
C_SOURCES += \
$(VND_DIR)/STM32CubeG0/Drivers/CMSIS/Device/ST/STM32G0xx/Source/Templates/system_stm32g0xx.c \
src/main.c
# ASM sources
ASM_SOURCES = \
$(VND_DIR)/STM32CubeG0/Drivers/CMSIS/Device/ST/STM32G0xx/Source/Templates/gcc/startup_stm32g030xx.s
#######################################
# binaries
#######################################
PREFIX = arm-none-eabi-
CC = $(PREFIX)gcc
CP = $(PREFIX)objcopy
#SZ = $(PREFIX)size
BIN = $(CP) -O binary -S
#######################################
# CFLAGS
#######################################
# cpu
CPU = \
-mcpu=cortex-m0plus \
-mthumb
DEFINES = -D$(PART)
# fpu
FPU =
# float-abi
FLOAT-ABI =
# mcu
MCU = $(CPU) $(FPU) $(FLOAT-ABI)
# C includes
C_INCLUDES += \
-Iinc \
-I$(VND_DIR)/STM32CubeG0/Drivers/CMSIS/Core/Include \
-I$(VND_DIR)/STM32CubeG0/Drivers/CMSIS/Device/ST/STM32G0xx/Include
# compile gcc flags
ADDN_CFLAGS = \
-Wall \
-fno-common \
-fdata-sections \
-ffunction-sections
CFLAGS = $(MCU) $(ADDN_CFLAGS) $(C_INCLUDES) $(OPT) $(DEFINES)
ifeq ($(DEBUG), 1)
CFLAGS += -ggdb3
endif
# Generate dependency information
#CFLAGS += -MMD -MP -MF"$(@:%.o=%.d)"
#######################################
# LDFLAGS
#######################################
# link script
LDSCRIPT = $(VND_DIR)/Ld/STM32G030F6MX_FLASH.ld
LIBDIR =
LDFLAGS = \
$(MCU) \
-T $(LDSCRIPT) \
--specs=nano.specs \
-Wl,--gc-sections \
-Wl,--print-memory-usage \
-Wl,--no-warn-rwx-segments
# default action: build all
all: $(BUILD_DIR)/$(TARGET).elf $(BUILD_DIR)/$(TARGET).bin
#######################################
# build the application
#######################################
# list of objects
OBJECTS = $(addprefix $(BUILD_DIR)/,$(notdir $(C_SOURCES:.c=.o)))
vpath %.c $(sort $(dir $(C_SOURCES)))
$(BUILD_DIR)/%.o: %.c Makefile | $(BUILD_DIR)
$(CC) -c $(CFLAGS) -Wa,-a,-ad,-alms=$(BUILD_DIR)/$(notdir $(<:.c=.lst)) $< -o $@
#$(LUAOBJECTS) $(OBJECTS)
$(BUILD_DIR)/$(TARGET).elf: $(OBJECTS) Makefile
$(CC) $(OBJECTS) $(LDFLAGS) $(ASM_SOURCES) -o $@
$(BUILD_DIR)/%.bin: $(BUILD_DIR)/%.elf | $(BUILD_DIR)
$(BIN) $< $@
$(BUILD_DIR):
mkdir $@
#######################################
# Program
#######################################
flash: $(BUILD_DIR)/$(TARGET).bin
pyocd load --target $(PART) $(BUILD_DIR)/$(TARGET).bin
#######################################
# clean up
#######################################
clean:
-rm -fR $(BUILD_DIR)
# *** EOF ***

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######################################
# target
######################################
TARGET = stm32g0_blinky
PART = STM32G030xx # check for pyocd
######################################
# building variables
######################################
# debug build?
DEBUG = 1
# optimization for size
OPT = -Os
#######################################
# paths
#######################################
# Build path
BUILD_DIR = build
VND_DIR = ../../vendor
######################################
# source
######################################
# C sources
include hal.mk
C_SOURCES += \
$(VND_DIR)/STM32CubeG0/Drivers/CMSIS/Device/ST/STM32G0xx/Source/Templates/system_stm32g0xx.c \
src/main.c
# ASM sources
LDLIBS1 = \
$(VND_DIR)/STM32CubeG0/Drivers/CMSIS/Device/ST/STM32G0xx/Source/Templates/gcc/startup_stm32g030xx.s
#######################################
# binaries
#######################################
PREFIX = arm-none-eabi-
CC = $(PREFIX)gcc
CP = $(PREFIX)objcopy
#SZ = $(PREFIX)size
BIN = $(CP) -O binary -S
#######################################
# CFLAGS
#######################################
# cpu
CPU = \
-mcpu=cortex-m0plus \
-mthumb
DEFINES = -D$(PART)
# fpu
FPU =
# float-abi
FLOAT-ABI =
# mcu
MCU = $(CPU) $(FPU) $(FLOAT-ABI)
# C includes
C_INCLUDES += \
-Iinc \
-I$(VND_DIR)/STM32CubeG0/Drivers/CMSIS/Core/Include \
-I$(VND_DIR)/STM32CubeG0/Drivers/CMSIS/Device/ST/STM32G0xx/Include
# compile gcc flags
ADDN_CFLAGS = \
# -std=c99 \
-Wall \
-fno-common \
-fdata-sections \
-ffunction-sections
CFLAGS = $(MCU) $(ADDN_CFLAGS) $(C_INCLUDES) $(OPT) $(DEFINES)
ifeq ($(DEBUG), 1)
CFLAGS += -ggdb3
endif
# Generate dependency information
#CFLAGS += -MMD -MP -MF"$(@:%.o=%.d)"
#######################################
# LDFLAGS
#######################################
# link script
LDSCRIPT = $(VND_DIR)/Ld/STM32G030F6MX_FLASH.ld
# libraries
GROUP_START =-Wl,--start-group
GROUP_END =-Wl,--end-group
PROJECT_LIBS = \
-lgcc \
-lc \
-lm \
-lnosys
LIBS = $(GROUP_START) $(PROJECT_LIBS) $(GROUP_END)
LIBDIR =
LDFLAGS = \
$(MCU) \
-T $(LDSCRIPT) \
--specs=nano.specs \
--specs=nosys.specs \
-Xlinker -Map=$(BUILD_DIR)/$(TARGET).map \
-Wl,--gc-sections \
-Wl,--print-memory-usage \
-Wl,--no-warn-rwx-segments
# default action: build all
all: $(BUILD_DIR)/$(TARGET).elf $(BUILD_DIR)/$(TARGET).bin
#######################################
# build the application
#######################################
# list of objects
OBJECTS = $(addprefix $(BUILD_DIR)/,$(notdir $(C_SOURCES:.c=.o)))
vpath %.c $(sort $(dir $(C_SOURCES)))
$(BUILD_DIR)/%.o: %.c Makefile | $(BUILD_DIR)
$(CC) -c $(CFLAGS) -Wa,-a,-ad,-alms=$(BUILD_DIR)/$(notdir $(<:.c=.lst)) $< -o $@
#$(LUAOBJECTS) $(OBJECTS)
$(BUILD_DIR)/$(TARGET).elf: $(OBJECTS) Makefile
$(CC) $(OBJECTS) $(LDFLAGS) $(LDLIBS1) -o $@
$(BUILD_DIR)/%.bin: $(BUILD_DIR)/%.elf | $(BUILD_DIR)
$(BIN) $< $@
$(BUILD_DIR):
mkdir $@
#######################################
# Program
#######################################
flash: $(BUILD_DIR)/$(TARGET).bin
pyocd load --target $(PART) $(BUILD_DIR)/$(TARGET).bin
#######################################
# clean up
#######################################
clean:
-rm -fR $(BUILD_DIR)
# *** EOF ***

0
myapps/first/hal.mk Normal file
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17
myapps/first/src/main.c Normal file
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@ -0,0 +1,17 @@
//#include <stdint.h>
#include "stm32g0xx.h"
#define LED_PIN 4
int main(void)
{
RCC->IOPENR |= RCC_IOPENR_GPIOAEN;
GPIOA->MODER |= GPIO_MODER_MODE5_0;
while(1)
{
GPIOA->ODR ^= (1<<LED_PIN); // toggle diodes
for (uint32_t i = 0; i < 1000000; i++);
}
}

172
vendor/Ld/STM32G030F6MX_FLASH.ld vendored Normal file
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@ -0,0 +1,172 @@
/*
******************************************************************************
**
** @file : LinkerScript.ld
**
** @author : Auto-generated by STM32CubeIDE
**
** @brief : Linker script for STM32G030J6Mx Device from STM32G0 series
** 32Kbytes FLASH
** 8Kbytes RAM
**
** Set heap size, stack size and stack location according
** to application requirements.
**
** Set memory bank area and size if external memory is used
**
** Target : STMicroelectronics STM32
**
** Distribution: The file is distributed as is, without any warranty
** of any kind.
**
******************************************************************************
** @attention
**
** Copyright (c) 2022 STMicroelectronics.
** All rights reserved.
**
** This software is licensed under terms that can be found in the LICENSE file
** in the root directory of this software component.
** If no LICENSE file comes with this software, it is provided AS-IS.
**
******************************************************************************
*/
/* Entry Point */
ENTRY(Reset_Handler)
/* Highest address of the user mode stack */
_estack = ORIGIN(RAM) + LENGTH(RAM); /* end of "RAM" Ram type memory */
/* Memories definition */
MEMORY
{
RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 8K
FLASH (rx) : ORIGIN = 0x8000000, LENGTH = 32K
}
/* Sections */
SECTIONS
{
/* The startup code into "FLASH" Rom type memory */
.isr_vector :
{
. = ALIGN(4);
KEEP(*(.isr_vector)) /* Startup code */
. = ALIGN(4);
} >FLASH
/* The program code and other data into "FLASH" Rom type memory */
.text :
{
. = ALIGN(4);
*(.text) /* .text sections (code) */
*(.text*) /* .text* sections (code) */
*(.glue_7) /* glue arm to thumb code */
*(.glue_7t) /* glue thumb to arm code */
*(.eh_frame)
KEEP (*(.init))
KEEP (*(.fini))
. = ALIGN(4);
_etext = .; /* define a global symbols at end of code */
} >FLASH
/* Constant data into "FLASH" Rom type memory */
.rodata :
{
. = ALIGN(4);
*(.rodata) /* .rodata sections (constants, strings, etc.) */
*(.rodata*) /* .rodata* sections (constants, strings, etc.) */
. = ALIGN(4);
} >FLASH
.ARM.extab : {
. = ALIGN(4);
*(.ARM.extab* .gnu.linkonce.armextab.*)
. = ALIGN(4);
} >FLASH
.ARM : {
. = ALIGN(4);
__exidx_start = .;
*(.ARM.exidx*)
__exidx_end = .;
. = ALIGN(4);
} >FLASH
.preinit_array :
{
. = ALIGN(4);
PROVIDE_HIDDEN (__preinit_array_start = .);
KEEP (*(.preinit_array*))
PROVIDE_HIDDEN (__preinit_array_end = .);
. = ALIGN(4);
} >FLASH
.init_array :
{
. = ALIGN(4);
PROVIDE_HIDDEN (__init_array_start = .);
KEEP (*(SORT(.init_array.*)))
KEEP (*(.init_array*))
PROVIDE_HIDDEN (__init_array_end = .);
. = ALIGN(4);
} >FLASH
.fini_array :
{
. = ALIGN(4);
PROVIDE_HIDDEN (__fini_array_start = .);
KEEP (*(SORT(.fini_array.*)))
KEEP (*(.fini_array*))
PROVIDE_HIDDEN (__fini_array_end = .);
. = ALIGN(4);
} >FLASH
/* Used by the startup to initialize data */
_sidata = LOADADDR(.data);
/* Initialized data sections into "RAM" Ram type memory */
.data :
{
. = ALIGN(4);
_sdata = .; /* create a global symbol at data start */
*(.data) /* .data sections */
*(.data*) /* .data* sections */
*(.RamFunc) /* .RamFunc sections */
*(.RamFunc*) /* .RamFunc* sections */
. = ALIGN(4);
_edata = .; /* define a global symbol at data end */
} >RAM AT> FLASH
/* Uninitialized data section into "RAM" Ram type memory */
. = ALIGN(4);
.bss :
{
/* This is used by the startup in order to initialize the .bss section */
_sbss = .; /* define a global symbol at bss start */
__bss_start__ = _sbss;
*(.bss)
*(.bss*)
*(COMMON)
. = ALIGN(4);
_ebss = .; /* define a global symbol at bss end */
__bss_end__ = _ebss;
} >RAM
/* Remove information from the compiler libraries */
/DISCARD/ :
{
libc.a ( * )
libm.a ( * )
libgcc.a ( * )
}
.ARM.attributes 0 : { *(.ARM.attributes) }
}