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lsc · 2024-11-20

"In the STM32U5, the LPTimer is used to periodically wake up from Stop 2 mode to sample ADC data. After the ADC samples the data via DMA and generates an interrupt, the system re-enters Stop 2 mode. When using a debugger, the sampled data is normal. ...

lsc · 2024-11-20

Main function and LPTimer handling: After the ADC sampling is completed via DMA and generates an interrupt, the system enters Stop 2 modemain() { if(g_SystemFRAM.EnterLpFlag.Lpm == ENTER_STOP2_MODE) { /* enter ...

lsc · 2024-11-20

Below is the ADC configuration. After being awakened from Stop 2 mode by the LPTimer, the ADC data sampling results are higher than expectedADC: hadc1.Instance = ADC1; hadc1.Init.ClockPrescaler = ADC_CLOCK_ASYNC_DIV1; hadc1.Init.Resolution = AD...

lsc · 2024-11-20

ADC: hadc1.Instance = ADC1; hadc1.Init.ClockPrescaler = ADC_CLOCK_ASYNC_DIV1; hadc1.Init.Resolution = ADC_RESOLUTION_14B; hadc1.Init.GainCompensation = 0; hadc1.Init.DataAlign = ADC_DATAALIGN_RIGHT; hadc1.Init.ScanConvMode = ADC_SCAN_ENABLE; ha...

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STM32U5: in Stop 2 mode, ADC sampling abnormal when waking periodically by LPTimer

Re: In the STM32U5, when in Stop 2 mode, the ADC data sampling is abnormal when awakened periodically by the LPTimer

Re: In the STM32U5, when in Stop 2 mode, the ADC data sampling is abnormal when awakened periodically by the LPTimer

Re: In the STM32U5, when in Stop 2 mode, the ADC data sampling is abnormal when awakened periodically by the LPTimer