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curiae · 2025-01-16

Hello,I observed how is going after HAL_PWR_EnterSTOPMode() execution without setting by HAL_RTCEx_SetWakeUpTimer_IT().Then strange phenomenon occurred.I presumed that power stop mode continues till interrupt and systick works even under power stop m...

curiae · 2024-12-29

Hello,Now I'm testing 50msec regular Stop and wakeup usingHAL_RTCEx_SetWakeUpTimer_IT(&hrtc, 102, RTC_WAKEUPCLOCK_RTCCLK_DIV16);Firstly I expected HAL_RTCEx_WakeUpTimerEventCallback() is done every 50msec but in real it was far faster than expexted.H...

curiae · 2024-12-24

Hello,Just before I tried to debug STM32L052 via ST-Link but following error occurred.The error message is as following.It's strange that I could debug and run with same project yesterday and nothing is changed as for project.What is the problem and ...

curiae · 2024-12-19

Hello,Now I mean to generate periodic wake-up by HAL_RTCEx_SetWakeUpTimer().But I'm not sure about arguments WakeUpCounter and WakeUpClock.For realize 50msec wake-up what value should be set to WakeUpCounter and which RTCCLK_DIV should be selected.T...

curiae · 2024-12-18

Hello,Now I'm trying to watch battery charge status using the charge IC BQ21061.I got the each registers' value via I2C by STM32LO MCU.I felt strange that Charge CV state and PGOOD state was set in the STAT0 register but Charge CV flag in the FLAG0 r...

curiae · 2024-12-13

After your suggestion, I changed hiwdg.Init.Prescaler up to MAX and surely 1sec systick works.But even at MAX Prescaler, reset itself seemed to occur.Firstly I thought IWDG generates reset if loop takes time than time-up value by IWDG but real I felt...

curiae · 2024-12-13

Thank you for your answer,If watchdog occur reset, I'll change time out settings.But I don't know how should I configure these parameters in MX_IWDG_Init().By following parameters, reset occur within 500 sec?If you like please explain about the setti...

curiae · 2024-12-12

Hello,Let me add more information.After the unforeseen phenomenon, I predicted MCU reset is done within 500msec.I added an increment counter in the msec systick driver and as I expected the counter never reached to 500.So I'm convinced that Systick o...

curiae · 2024-10-22

Sorry, I should have written formal name STLM75.Could you tell me why HAL_I2C_Master_Transmit() and HAL_I2C_Master_Receive() returned HAL_BUSY.There are something wrong in MX_I2C1_Init()?

curiae · 2024-10-22

Hello,Now I found source codes in my post was deleted so I'll post again.I tried to get temperature data from LM75 via I2C on STM32L0538-Discovery.In following test program, HAL_I2C_Master_Transmit() and HAL_I2C_Master_Receive() returned HAL_BUSY.Tho...

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behavior after STOPMode

time interval of HAL_RTCEx_WakeUpTimerEventCallback()

Couldn't debug via ST-Link

how to designate wakeup msec by HAL_RTCEx_SetWakeUpTimer()

BQ21061's value of status registers and flag registers

Re: increment doesn't work in a systick function

Re: increment doesn't work in a systick function

Re: increment doesn't work in a systick function

Re: HAL_BUSY from LM75 via I2C on STM32L0538-Discovery

HAL_BUSY from LM75 via I2C on STM32L0538-Discovery