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Aarra.1
Associate III
Jul 27, 2022 5:30 AM UTC
Question

Code is getting stuck at SystemClock_Config() function

Hello,

I'm using STM32H747XIH6 MCU and I have developed the code on STM32 cube ide software 1.7.0 by generating the code in stm32 cube mx 6.5.0.

I have written a simple code of GPIO toggle pin.

Below is my code for clock configuration. I have connected an external clock of 25MHz.

void SystemClock_Config(void)
{
 RCC_OscInitTypeDef RCC_OscInitStruct = {0};
 RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
 
 /** Supply configuration update enable
 */
 HAL_PWREx_ConfigSupply(PWR_DIRECT_SMPS_SUPPLY);
 
 /** Configure the main internal regulator output voltage
 */
 __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
 
 while(!__HAL_PWR_GET_FLAG(PWR_FLAG_VOSRDY)) {}
 
 /** Initializes the RCC Oscillators according to the specified parameters
 * in the RCC_OscInitTypeDef structure.
 */
 RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
 RCC_OscInitStruct.HSEState = RCC_HSE_BYPASS;
 RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
 RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
 RCC_OscInitStruct.PLL.PLLM = 5;
 RCC_OscInitStruct.PLL.PLLN = 48;
 RCC_OscInitStruct.PLL.PLLP = 2;
 RCC_OscInitStruct.PLL.PLLQ = 2;
 RCC_OscInitStruct.PLL.PLLR = 2;
 RCC_OscInitStruct.PLL.PLLRGE = RCC_PLL1VCIRANGE_2;
 RCC_OscInitStruct.PLL.PLLVCOSEL = RCC_PLL1VCOWIDE;
 RCC_OscInitStruct.PLL.PLLFRACN = 0;
 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_CLOCKTYPE_PCLK2
 |RCC_CLOCKTYPE_D3PCLK1|RCC_CLOCKTYPE_D1PCLK1;
 RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
 RCC_ClkInitStruct.SYSCLKDivider = RCC_SYSCLK_DIV1;
 RCC_ClkInitStruct.AHBCLKDivider = RCC_HCLK_DIV2;
 RCC_ClkInitStruct.APB3CLKDivider = RCC_APB3_DIV1;
 RCC_ClkInitStruct.APB1CLKDivider = RCC_APB1_DIV1;
 RCC_ClkInitStruct.APB2CLKDivider = RCC_APB2_DIV1;
 RCC_ClkInitStruct.APB4CLKDivider = RCC_APB4_DIV1;
 
 if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_1) != HAL_OK)
 {
 Error_Handler();
 }
}

But my code is getting stuck in the below line.

 /** Supply configuration update enable
 */
 HAL_PWREx_ConfigSupply(PWR_DIRECT_SMPS_SUPPLY);

kindly help me out with this situation.

This topic has been closed for replies.

3 replies

AtesFurkan
Associate
Feb 8, 2023 10:24 AM UTC

I have the same problem (Even I've chosen the example code from CubeMX). Did you find the solution?

Aarra.1
Aarra.1Author
Associate III
Feb 8, 2023 1:31 PM UTC

The issue was with the power supply configuration.

In my hardware the power supply was LDO supply hence i changed the configuration from PWR_DIRECT_SMPS_SUPPLY to PWR_LDO_SUPPLY and it worked.

Do let me know if this helps.

AtesFurkan
Associate
Feb 13, 2023 8:35 AM UTC

I use the STM32H745I-DISCO board, and did not change any thing on hardware. Therefore, the SMPS Supply is the default configuration (Double checked on hardware). I have the same problems in two boards even if I use the examples from CubeIDE.