About curiae

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 · 2024-12-12

Hello, Now I'm testing a systick work on STM32L0538-DISCO. The aim in my project is to make 100Hz, 10Hz, 6Hz, 5Hz, 2Hz and 1Hz systick functions. In the project, 100Hz, 10Hz, 6Hz and 5Hz systick functions worked, but 2Hz and 1Hz systick functions did...

curiae · 2024-12-01

Hello,Now I'm developing on STM32L052T8Y6TR and thinking to occur every 20msec WakeUp from systick interrupt.More concretely, after Entering Stop Mode (by HAL_PWR_EnterSTOPMode), I want to start wake-up at arbitrary time. in the SysTick_Callback.I kn...

curiae · 2024-10-21

Hello,I tried to get temperature data from LM75 via I2C on STM32L0538-Discovery.But in following test program, HAL_I2C_Master_Transmit() and HAL_I2C_Master_Receive() returned HAL_BUSY.What's wrong with it?And I couldn't check from the schematic diagr...

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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how to designate wakeup msec by HAL_RTCEx_SetWakeUpTimer()

BQ21061's value of status registers and flag registers

increment doesn't work in a systick function

WakeUp from STOPMode at arbitrary time

HAL_BUSY from LM75 via I2C on STM32L0538-Discovery

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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