How to fix the NUCLEO F722ZE Board clock error

[ark2]

I removed the STlink of the NUCLEO F722ZE board and wrote it, but there was a clock error, so the program itself is not working It worked normally when there was Stlink, but it's not working

I set it to HSI and used it, but it didn't work, so a clock issue occurred to switch to HSE, so I thought it would be okay to just debug it, but at some point, the clock didn't work, so it didn't come out of stop mode I set it as an rtc alarm and woke it up, but it seems like a clock error when it stops after going well

How can I fix this error? Stlink uses a lot of electric current, so it needs to be removed

I removed only the stlink from the hardware, but this is the situation

Original settings before removing STlink

Setting changed to clock error after removing STlink

This is the setting I used before, but after removing the STlink, the HAL_RCC_OscConfig(&RCC_OscInitStructure) error handle occurred in this part

void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};

/** Configure LSE Drive Capability
*/
HAL_PWR_EnableBkUpAccess();

/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);

/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_LSI|RCC_OSCILLATORTYPE_HSE;
RCC_OscInitStruct.HSEState = RCC_HSE_BYPASS;
RCC_OscInitStruct.LSIState = RCC_LSI_ON;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
RCC_OscInitStruct.PLL.PLLM = 4;
RCC_OscInitStruct.PLL.PLLN = 216;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 9;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}

/** Activate the Over-Drive mode
*/
if (HAL_PWREx_EnableOverDrive() != 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_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;

if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_7) != HAL_OK)
{
Error_Handler();
}
}



It's a code related to stop mode

void RTC_Init(void)
{
__HAL_RCC_RTC_ENABLE();

hrtc.Instance = RTC;
hrtc.Init.HourFormat = RTC_HOURFORMAT_24;
hrtc.Init.AsynchPrediv = 127;
hrtc.Init.SynchPrediv = 255;
hrtc.Init.OutPut = RTC_OUTPUT_DISABLE;
hrtc.Init.OutPutPolarity = RTC_OUTPUT_POLARITY_HIGH;
HAL_RTC_Init(&hrtc);

// Get current time
RTC_TimeTypeDef currentTime;
HAL_RTC_GetTime(&hrtc, &currentTime, RTC_FORMAT_BIN);

// Calculate alarm time (current time + 50 seconds)
RTC_AlarmTypeDef sAlarm;
sAlarm.Alarm = RTC_ALARM_A;
sAlarm.AlarmTime = currentTime;
sAlarm.AlarmTime.Seconds += 30;

// Handle overflow of seconds
if (sAlarm.AlarmTime.Seconds >= 60)


{
sAlarm.AlarmTime.Seconds -= 60;
sAlarm.AlarmTime.Minutes++;
if (sAlarm.AlarmTime.Minutes >= 60)
{
sAlarm.AlarmTime.Minutes -= 60;
sAlarm.AlarmTime.Hours++;
if (sAlarm.AlarmTime.Hours >= 24)
{
sAlarm.AlarmTime.Hours -= 24;
}
}
}

sAlarm.AlarmSubSecondMask = RTC_ALARMSUBSECONDMASK_NONE;
sAlarm.AlarmMask = RTC_ALARMMASK_DATEWEEKDAY;
sAlarm.AlarmDateWeekDaySel = RTC_ALARMDATEWEEKDAYSEL_DATE;
sAlarm.AlarmDateWeekDay = 0;

HAL_RTC_SetAlarm_IT(&hrtc, &sAlarm, RTC_FORMAT_BIN);
}

void HAL_RTC_AlarmAEventCallback(RTC_HandleTypeDef *hrtc)
{
// Handle the alarm event
// Wake up the system or perform necessary actions here
__HAL_PWR_CLEAR_FLAG(PWR_FLAG_WU); // Clear wake-up flag if necessary
}


void vStopMode(void)
{

/* Suspend SysTick */
HAL_SuspendTick();

/* Enable Power Peripheral */
__HAL_RCC_PWR_CLK_ENABLE();

/* Initialize RTC and set alarm */
RTC_Init();

/* STOP Mode */
//HAL_PWR_EnterSTOPMode(PWR_LOWPOWERREGULATOR_ON, PWR_STOPENTRY_WFI);
HAL_PWR_EnterSTOPMode(PWR_LOWPOWERREGULATOR_ON, PWR_SLEEPENTRY_WFI);

/* Resume SysTick When System Wake-up */
HAL_ResumeTick();

/* PLL Clock Recovery */
SystemClock_Config();

// 전력 안정화를 위해 잠시 대기
HAL_Delay(100); // 100ms 정도 대기


}

[SofLit]

Hello @ark2 ,

First, kindly use English to post a thread. 

Second, please use </> button to paste your code (I'm editing your post). Review the tips on posting on this link.

Translation:

I removed STlink from the NUCLEO F722ZE board and wrote it, but a clock error occurs and the program itself does not work. It worked normally when Stlink was present, but it does not work.

I used it by setting it to HSI, but it does not work. So I tried to switch to HSE, and there was a clock issue, so I thought I could just debug it, but at some point the clock did not work and it did not come out of the stop mode. I set it to RTC alarm and woke it up, but it worked fine and then stopped, so it seems to be a clock error.

How can I solve this error? Stlink uses a lot of current, so it should be removed.

I only removed stlink from the hardware, and this is the situation.

Original settings before removing STlink

This was a previously used setup, but after removing STlink, an error handle HAL_RCC_OscConfig(&RCC_OscInitStructure) occurred in this part.

[Sarra.S · Accepted solution]

Hello @ark2, 

Since you are using HSEState = RCC_HSE_BYPASS, is the external clock source available and stable? 

[ark2]

After removing the stlink, there was a problem with the clock, so I'm fixing it, but it still seems to be a problem with the external clock
But I don't know how to fix it
It doesn't change even if you edit it in the cube mx and set the clock