Associate III
March 27, 2017
Solved
STM32F429 CLOCK CONFIGURATION PROBLEM
- March 27, 2017
- 18 replies
- 4229 views
Posted on March 27, 2017 at 08:43
I am trying to configure HSE clock with 8Mhz crystal with STM32F429.
HAL_ERROR occurs when HAL_RCC_OscConfig function is executed in the following partition./*----------------------------- HSI Configuration --------------------------*/
if(((RCC_OscInitStruct->OscillatorType) & RCC_OSCILLATORTYPE_HSI) == RCC_OSCILLATORTYPE_HSI) { /* Check the parameters */ assert_param(IS_RCC_HSI(RCC_OscInitStruct->HSIState)); assert_param(IS_RCC_CALIBRATION_VALUE(RCC_OscInitStruct->HSICalibrationValue)); /* Check if HSI is used as system clock or as PLL source when PLL is selected as system clock */ if((__HAL_RCC_GET_SYSCLK_SOURCE() == RCC_CFGR_SWS_HSI) ||\ ((__HAL_RCC_GET_SYSCLK_SOURCE() == RCC_CFGR_SWS_PLL) && ((RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) == RCC_PLLCFGR_PLLSRC_HSI))) { /* When HSI is used as system clock it will not disabled */ if((__HAL_RCC_GET_FLAG(RCC_FLAG_HSIRDY) != RESET) && (RCC_OscInitStruct->HSIState != RCC_HSI_ON)) { return HAL_ERROR;//Always this line works }Actually HSE is running and ready, but the problem in HSI causes HAL_ERROR to return.
Error_Handler () is constantly running in this section with the reason for this problem.
/**Initializes the CPU, AHB and APB busses clocks
*/ RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI|RCC_OSCILLATORTYPE_HSE; RCC_OscInitStruct.HSEState = RCC_HSE_ON; RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON; RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE; RCC_OscInitStruct.PLL.PLLM = 8; RCC_OscInitStruct.PLL.PLLN = 336; RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2; RCC_OscInitStruct.PLL.PLLQ = 7; if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) { Error_Handler(); }I need help
Thank you
