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uart tx only

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This commit is contained in:
Ajit Ananthadevan 2025-08-23 17:08:29 +10:00
parent c57e17a5ac
commit 63bef1cd68
6 changed files with 685 additions and 0 deletions
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145
myapps/practice/00-uart-tx/Makefile Normal file
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######################################
# target
######################################
TARGET = stm32g0_blinky
PART = STM32G030xx
PYOCD_TARGET = stm32g030f6px
######################################
# 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 $(PYOCD_TARGET) $(BUILD_DIR)/$(TARGET).bin
#######################################
# clean up
#######################################
clean:
-rm -fR $(BUILD_DIR)
# *** EOF ***

20
myapps/practice/00-uart-tx/hal.mk Normal file
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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 \
$(VND_DIR)/STM32CubeG0/Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal_uart.c \
src/stm32g0xx_hal_msp.c

351
myapps/practice/00-uart-tx/src/inc/stm32g0xx_hal_conf.h Normal file
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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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myapps/practice/00-uart-tx/src/inc/stm32g0xx_hal_msp.h Normal file
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#include "stm32g0xx_hal.h"
void SystemClock_Config(void);
/*
* Other functions (already defined weak in HAL):
* HAL_MspInit(void)
* void SysTick_Handler(void)
*/

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myapps/practice/00-uart-tx/src/main.c Normal file
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// Tx/Rx: PA09[PA11]/PA10[PA12]
//#include <string.h>
#include "stm32g0xx_hal_msp.h"
UART_HandleTypeDef huart1;
char buffer[] = "Hello World\r\n";
#define TXBUFFERSIZE 14 //strlen(buffer)
#define TIMEOUT 1000 //right val?
static void uart_init(void)
{
/* USER CODE BEGIN USART1_Init 0 */
/* USER CODE END USART1_Init 0 */
/* USER CODE BEGIN USART1_Init 1 */
/* USER CODE END USART1_Init 1 */
huart1.Instance = USART1;
huart1.Init.BaudRate = 115200;
huart1.Init.WordLength = UART_WORDLENGTH_8B;
huart1.Init.StopBits = UART_STOPBITS_1;
huart1.Init.Parity = UART_PARITY_NONE;
huart1.Init.Mode = UART_MODE_TX_RX;
huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
huart1.Init.OverSampling = UART_OVERSAMPLING_16;
huart1.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
huart1.Init.ClockPrescaler = UART_PRESCALER_DIV1;
huart1.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
while (HAL_UART_Init(&huart1) != HAL_OK);
}
int main(void)
{
HAL_Init();
SystemClock_Config();
uart_init();
while(1)
{
HAL_UART_Transmit(&huart1, (uint8_t *)buffer, TXBUFFERSIZE, TIMEOUT);
HAL_Delay(100);
}
}

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myapps/practice/00-uart-tx/src/stm32g0xx_hal_msp.c Normal file
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#include "stm32g0xx_hal_msp.h"
void HAL_MspInit(void)
{
/* USER CODE BEGIN MspInit 0 */
/* USER CODE END MspInit 0 */
__HAL_RCC_SYSCFG_CLK_ENABLE();
__HAL_RCC_PWR_CLK_ENABLE();
/* System interrupt init*/
HAL_SYSCFG_EnableRemap(SYSCFG_REMAP_PA11);
HAL_SYSCFG_EnableRemap(SYSCFG_REMAP_PA12);
/* USER CODE BEGIN MspInit 1 */
/* USER CODE END MspInit 1 */
}
void HAL_UART_MspInit(UART_HandleTypeDef* huart)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
RCC_PeriphCLKInitTypeDef PeriphClkInit = {0};
if(huart->Instance==USART1)
{
PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USART1;
PeriphClkInit.Usart1ClockSelection = RCC_USART1CLKSOURCE_PCLK1;
while (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK);
__HAL_RCC_USART1_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
GPIO_InitStruct.Pin = GPIO_PIN_9|GPIO_PIN_10; // both push/pull??
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
GPIO_InitStruct.Alternate = GPIO_AF1_USART1;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
}
}
void SysTick_Handler(void)
{
HAL_IncTick();
}
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE1);
/** Configure LSE Drive Capability
*/
HAL_PWR_EnableBkUpAccess();
__HAL_RCC_LSEDRIVE_CONFIG(RCC_LSEDRIVE_LOW);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI|RCC_OSCILLATORTYPE_LSE;
RCC_OscInitStruct.LSEState = RCC_LSE_ON;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSIDiv = RCC_HSI_DIV1;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLM = RCC_PLLM_DIV1;
RCC_OscInitStruct.PLL.PLLN = 8;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLR = RCC_PLLR_DIV2;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
{
Error_Handler();
}
}