HSERDY flag doesn't set - NUCLEO-STM32L4R5ZI

[KHuyn]

Hello,

• I am trying to config my board using HSE as SYSCLK (my board has MCO from ST-LINK as external clock supply by default - 8MHZ)
• The goal is set SYSCLK = 8Mhz, HCLK =4Mhz , PCLK1/2 = 2Mhz
• Problem: HSERDY was never set within the TIME OUT

Please lets me known if I had missed any thing here.

Thank you,

Aaron

#include "stm32l4xx_hal_conf.h"
#include "stm32l4r5xx.h"
#include "main.h"
#include <string.h>
/*----------------------------------------------------------------*/
 
#define TRUE 1
#define FALSE 0
/*----------------------------------------------------------------*/
 
void UART3_Init(void);
void Error_handler(void);
/*----------------------------------------------------------------*/
 
UART_HandleTypeDef huart3;
/*----------------------------------------------------------------*/
 
int main(void)
{
	RCC_OscInitTypeDef osc_init;	
	RCC_ClkInitTypeDef clk_init;	
	uint8_t msg[17];
 
	HAL_Init();	
	UART3_Init();
 
	/* Create argument structure for OSCCONFIG */
	memset(&osc_init,0,sizeof(osc_init)); 
	osc_init.OscillatorType = RCC_OSCILLATORTYPE_HSE;	
	osc_init.HSEState = RCC_HSE_BYPASS;	
	if (HAL_RCC_OscConfig(&osc_init) != HAL_OK) //<-- HSERDY wasn't flag, fail the argument
	{
		Error_handler(); //<-- program was fail and trapped here
	}
 
	/* Create argument structure for CLOCKCONFIG */
	memset(&clk_init,0,sizeof(clk_init));	
	clk_init.ClockType = RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK |
						RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2;	
	clk_init.SYSCLKSource = RCC_SYSCLKSOURCE_HSE;	
	clk_init.AHBCLKDivider = RCC_SYSCLK_DIV2;	
	clk_init.APB1CLKDivider = RCC_HCLK_DIV2;	
	clk_init.APB2CLKDivider = RCC_HCLK_DIV2;	
	if (HAL_RCC_ClockConfig(&clk_init,FLASH_ACR_LATENCY_0WS) != HAL_OK)
	{
		Error_handler(); 
	}
	__HAL_RCC_HSI_DISABLE();	
 
 
	/*Debug using printf and USART3*/
	memset(msg,0,sizeof(msg));
	sprintf(msg,"SYSCLK: %lu \r\n",HAL_RCC_GetSysClockFreq()); 
	HAL_UART_Transmit(&huart3, msg, strlen(msg), HAL_MAX_DELAY);
 
	memset(msg,0,sizeof(msg));
	sprintf(msg,"HCLK: %lu \r\n",HAL_RCC_GetHCLKFreq());
	HAL_UART_Transmit(&huart3, msg, strlen(msg), HAL_MAX_DELAY);
 
	memset(msg,0,sizeof(msg));
	sprintf(msg,"PCLK1: %lu \r\n",HAL_RCC_GetPCLK1Freq());
	HAL_UART_Transmit(&huart3, msg, strlen(msg), HAL_MAX_DELAY);
 
	memset(msg,0,sizeof(msg));
	sprintf(msg,"PCLK2: %lu \r\n",HAL_RCC_GetPCLK2Freq());
	HAL_UART_Transmit(&huart3, msg, strlen(msg), HAL_MAX_DELAY);
 
	while(1)
	{
 
	}
 
		return 0;
}
/*----------------------------------------------------------------*/
 
void UART3_Init(void)
{
	huart3.Instance = USART3; 					
	huart3.Init.BaudRate = 115200;
	huart3.Init.WordLength = UART_WORDLENGTH_8B;
	huart3.Init.StopBits = UART_STOPBITS_1;
	huart3.Init.Parity = UART_PARITY_NONE;
	huart3.Init.HwFlowCtl = UART_HWCONTROL_NONE;
	huart3.Init.Mode =  UART_MODE_TX_RX;		
	if ( HAL_UART_Init(&huart3)!=HAL_OK)
	{
		Error_handler();
	}
}
/*----------------------------------------------------------------*/
void Error_handler(void)
{
 while(1);
}