About SAkhi.951

SAkhi.951 · 2022-03-08

Hello, I'm using RTC Wakeup to periodically kick WDG while system is in a sleep mode.I have setup RTC wakeup as following:/* RTC init function */ void MX_RTC_Init(void) { /** Initialize RTC Only */ hrtc.Instance = RTC; hrtc.Init.HourFormat ...

SAkhi.951 · 2021-09-07

MCU - STM32L431RC; HAL drivers ver 1.13.After switching clock from HSI to MSI 16 -> 32 MHz,CubeMX generated system Clock setup does not work.When trying to send data to STM constantly getting "Noise error" and rarely 1st byte is received via ISR. TX ...

SAkhi.951 · 2021-07-14

I have setup UART1 clocked with HSI clock, with drivers version 1.16Which led to incorrect output on the line.Same code with drivers version 1.14 worked completely fine. See picture.Turns out HSI trimming value is not correct in clock setupRCC_OscIni...

SAkhi.951 · 2021-03-18

I have setup RTC wakeup functionality and generated code with CubeMX.The code does not work straight away, because imr1's mr20 in EXTI IMR1 register was not unmasked. I suppose this is a bug and should be handle by STM. It took some time to figure th...

SAkhi.951 · 2021-03-10

Hello, I'm trying to set up sleep mode and wake up from it by sending UART message to MCU.However, MCU does not wake up.Details:UART baudrate - 115200UArt set up in DMA mode, however, before going to sleep I activate RX in IT mode.clocks setup:void S...

SAkhi.951 · 2022-03-09

Anyway, since RTC does not wake up system anymore, I have removed is_stay_in_sleep_mode, and now it simply waits in HAL_PWR_EnterSLEEPMode() until wake up ISR from other peripherals is triggerred.

SAkhi.951 · 2022-03-09

YesAccording STM reference manualAlso update on behaviour.When the wake up interrupt is generated, system does not leave __WFI() instruction.But when interrupt from UART comes, then it moves out form ISR instruction, and on the next wake up interrupt...

SAkhi.951 · 2021-09-07

10 was just a random choice. Is there any instruction how to adjust calibration value ?As to "dongle" - it is USB to TTL serial cable.

SAkhi.951 · 2021-09-07

You are correct, it was MSICAL value. MSITRIM is 0.

SAkhi.951 · 2021-09-07

I have changed Calibration value to 10 and it started to work, Thanks!

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RTC Wakeup does not wakeup system from sleep mode STM32L431?

UART RX does not work after changing clock from HSI to MSI

HSI clock config is not correct for NUCLEO L432KC, with drivers version 1.16

RTC wakeup with CubeMX generated code does not work.

STM32L4 exit from Sleep/Low power sleep by UART RX ISR does not work

Re: RTC Wakeup does not wakeup system from sleep mode STM32L431?

Re: RTC Wakeup does not wakeup system from sleep mode STM32L431?

Re: UART RX does not work after changing clock from HSI to MSI

Re: UART RX does not work after changing clock from HSI to MSI

Re: UART RX does not work after changing clock from HSI to MSI