internal msi 32.768mhz not work when configurate with stm32cubeide.

[jdo]

i am using stm32l010f4, i do a test with internal frecuency, why i need use 32.768mhz, but i don´t have external clock on pcb, i do a test with msi rc 524.288 khz, SYSCLK(MHZ): 0.524288, AHB PRESCALER (Here i configure with 512 and compile, i test and the clock work,so i decre the AHB prescaler in 16 and i test and the clock not work.

[Javier1]

>>configurate with stm32cubeide.

Did you mean stm32cubeMx?

For the rest of your questionj im really struggling to understand anything at all.

Try to reformulate, maybe google translate your native languaje to english

[jdo]

[jdo]

thanks for replying, i am configuring with .ioc using stm32cubeide. now i got the clock to work with 32.768khz, but when i enable timer 2, and compile i test again, then the c

/* USER CODE BEGIN Header */
/**
 ******************************************************************************
 * @file : main.c
 * @brief : Main program body
 ******************************************************************************
 * @attention
 *
 * Copyright (c) 2023 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 */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
 
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
unsigned int contador=0;
unsigned int valortimer=0;
/* USER CODE END Includes */
 
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
 
/* USER CODE END PTD */
 
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */
 
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */
 
/* USER CODE END PM */
 
/* Private variables ---------------------------------------------------------*/
 
/* USER CODE BEGIN PV */
 
/* USER CODE END PV */
 
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_TIM2_Init(void);
/* USER CODE BEGIN PFP */
 
/* USER CODE END PFP */
 
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
 
 
 
void SystemClock_Config(void)
{
	//configura la lactancia de la flash
	MODIFY_REG(FLASH->ACR, FLASH_ACR_LATENCY,(0x00000000U));
	while((READ_BIT(FLASH->ACR, FLASH_ACR_LATENCY))!=(0x00000000U))
	{
 
	}
	MODIFY_REG(PWR->CR, PWR_CR_VOS,(PWR_CR_VOS_0));
	SET_BIT(RCC->CR, RCC_CR_MSION_Msk);
 
	while(((READ_BIT(RCC->CR, RCC_CR_MSIRDY) == RCC_CR_MSIRDY) ? 1UL : 0UL)!=1)
	{
 
	}
	MODIFY_REG(RCC->ICSCR, RCC_ICSCR_MSIRANGE, RCC_ICSCR_MSIRANGE_3);
	MODIFY_REG(RCC->ICSCR, RCC_ICSCR_MSITRIM, 0 << RCC_ICSCR_MSITRIM_Pos);
	MODIFY_REG(RCC->CFGR, RCC_CFGR_HPRE, RCC_CFGR_HPRE_DIV16);
	MODIFY_REG(RCC->CFGR, RCC_CFGR_PPRE1, RCC_CFGR_PPRE1_DIV1);
	MODIFY_REG(RCC->CFGR, RCC_CFGR_PPRE2, RCC_CFGR_PPRE2_DIV1 );
	MODIFY_REG(RCC->CFGR, RCC_CFGR_SW, RCC_CFGR_SW_MSI);
 
	while((READ_BIT(RCC->CFGR, RCC_CFGR_SWS))!=RCC_CFGR_SWS_MSI)
	{
 
	}
 
 
	SysTick->LOAD = (uint32_t) ((32768 / 1000U) - 1UL);
	SysTick->VAL = 0UL;
	SysTick->CTRL = SysTick_CTRL_CLKSOURCE_Msk |
	SysTick_CTRL_ENABLE_Msk;
 
	 SystemCoreClock = 32768;
}
 
 
/* USER CODE END 0 */
 
/**
 * @brief The application entry point.
 * @retval int
 */
int main(void)
{
 /* USER CODE BEGIN 1 */
 
 /* USER CODE END 1 */
 
 /* MCU Configuration--------------------------------------------------------*/
 
 /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
 LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_SYSCFG);
 LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_PWR);
 
 /* SysTick_IRQn interrupt configuration */
 NVIC_SetPriority(SysTick_IRQn, 3);
 
 /* USER CODE BEGIN Init */
 
 /* USER CODE END Init */
 
 /* Configure the system clock */
 SystemClock_Config();
 
 /* USER CODE BEGIN SysInit */
 
 /* USER CODE END SysInit */
 
 /* Initialize all configured peripherals */
 MX_GPIO_Init();
 MX_TIM2_Init();
 /* USER CODE BEGIN 2 */
 // HAL_TIM_Base_Start_IT(&htim21);
 //HAL_LPTIM_TimeOut_Start_IT(&hlptim1, contador, contador);
 
	/*------------ habilita interrupcion del timer -----------*/
 	//LL_TIM_EnableIT_UPDATE(TIM2);
 
 	//SET_BIT(TIM2->DIER, TIM_DIER_UIE);
 
 	/*---------------------------------------------------------*/
 	/*---------- inicializa el contador ------------------------*/
 	LL_TIM_EnableCounter(TIM2);
 
 
 /* USER CODE END 2 */
 
 /* Infinite loop */
 /* USER CODE BEGIN WHILE */
 while (1)
 {
 /* USER CODE END WHILE */
 
 /* USER CODE BEGIN 3 */
	 contador++;
	 if(contador>=15000)
	 {
		 contador=0;
		 valortimer= LL_TIM_GetCounter(TIM2);
 
 
	 }
 }
 /* USER CODE END 3 */
}
 
/**
 * @brief System Clock Configuration
 * @retval None
 */
 
/*
void SystemClock_Config(void)
{
 LL_FLASH_SetLatency(LL_FLASH_LATENCY_0);
 while(LL_FLASH_GetLatency()!= LL_FLASH_LATENCY_0)
 {
 }
 LL_PWR_SetRegulVoltageScaling(LL_PWR_REGU_VOLTAGE_SCALE1);
 LL_RCC_MSI_Enable();
 
 
 while(LL_RCC_MSI_IsReady() != 1)
 {
 
 }
 LL_RCC_MSI_SetRange(LL_RCC_MSIRANGE_3);
 LL_RCC_MSI_SetCalibTrimming(0);
 LL_RCC_SetAHBPrescaler(LL_RCC_SYSCLK_DIV_16);
 LL_RCC_SetAPB1Prescaler(LL_RCC_APB1_DIV_1);
 LL_RCC_SetAPB2Prescaler(LL_RCC_APB2_DIV_1);
 LL_RCC_SetSysClkSource(LL_RCC_SYS_CLKSOURCE_MSI);
 
 
 while(LL_RCC_GetSysClkSource() != LL_RCC_SYS_CLKSOURCE_STATUS_MSI)
 {
 
 }
 
 LL_Init1msTick(32768);
 
 LL_SetSystemCoreClock(32768);
}
 
*/
 
/**
 * @brief TIM2 Initialization Function
 * @param None
 * @retval None
 */
static void MX_TIM2_Init(void)
{
 
 /* USER CODE BEGIN TIM2_Init 0 */
 
 /* USER CODE END TIM2_Init 0 */
 
 LL_TIM_InitTypeDef TIM_InitStruct = {0};
 
 /* Peripheral clock enable */
 LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_TIM2);
 
 /* TIM2 interrupt Init */
 NVIC_SetPriority(TIM2_IRQn, 0);
 NVIC_EnableIRQ(TIM2_IRQn);
 
 /* USER CODE BEGIN TIM2_Init 1 */
 
 /* USER CODE END TIM2_Init 1 */
 TIM_InitStruct.Prescaler = 0;
 TIM_InitStruct.CounterMode = LL_TIM_COUNTERMODE_UP;
 TIM_InitStruct.Autoreload = 65535;
 TIM_InitStruct.ClockDivision = LL_TIM_CLOCKDIVISION_DIV1;
 LL_TIM_Init(TIM2, &TIM_InitStruct);
 LL_TIM_DisableARRPreload(TIM2);
 LL_TIM_SetClockSource(TIM2, LL_TIM_CLOCKSOURCE_INTERNAL);
 LL_TIM_SetTriggerOutput(TIM2, LL_TIM_TRGO_RESET);
 LL_TIM_DisableMasterSlaveMode(TIM2);
 /* USER CODE BEGIN TIM2_Init 2 */
 
 /* USER CODE END TIM2_Init 2 */
 
}
 
/**
 * @brief GPIO Initialization Function
 * @param None
 * @retval None
 */
static void MX_GPIO_Init(void)
{
 LL_GPIO_InitTypeDef GPIO_InitStruct = {0};
 
 /* GPIO Ports Clock Enable */
 LL_IOP_GRP1_EnableClock(LL_IOP_GRP1_PERIPH_GPIOC);
 
 /**/
 LL_GPIO_ResetOutputPin(GPIOC, LL_GPIO_PIN_14);
 
 /**/
 GPIO_InitStruct.Pin = LL_GPIO_PIN_14;
 GPIO_InitStruct.Mode = LL_GPIO_MODE_OUTPUT;
 GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_LOW;
 GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
 GPIO_InitStruct.Pull = LL_GPIO_PULL_NO;
 LL_GPIO_Init(GPIOC, &GPIO_InitStruct);
 
}
 
/* USER CODE BEGIN 4 */
 
/* USER CODE END 4 */
 
/**
 * @brief This function is executed in case of error occurrence.
 * @retval None
 */
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 */
}
 
#ifdef USE_FULL_ASSERT
/**
 * @brief Reports the name of the source file and the source line number
 * where the assert_param error has occurred.
 * @param file: pointer to the source file name
 * @param line: assert_param error line source number
 * @retval None
 */
void assert_failed(uint8_t *file, uint32_t line)
{
 /* USER CODE BEGIN 6 */
 /* User can add his own implementation to report the file name and line number,
 ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
 /* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

lock doesn't work anymore.