About HSagh.1

HSagh.1 · 2024-05-19

On STM32F205VGTX, when I put cpu in sleep by using this command: HAL_PWR_EnterSLEEPMode(PWR_LOWPOWERREGULATOR_ON, PWR_SLEEPENTRY_WFI); CAN peripheral stops working. It does not acknowlege bus messages anymore and there is no CAN interrupts to wake up...

HSagh.1 · 2023-05-25

STM32CubeL4, v1.17.2 in function HAL_UART_IRQHandler() at line 2524.When handling bus ideal situation, there is no condition to prohibit calling the callback if nb_remaining_rx_data = huart->RxXferSize/2. So, both Dma half transfer complete and bus i...

HSagh.1 · 2024-05-21

Actually I found the problem. Somewhere hidden in the inititalisation code AxBnLPENR registers were wrongly cleared by a test code that should have been removed. That was the main reason.I also do not need to enable Autowakeup, becasue I do not put C...

HSagh.1 · 2023-12-04

static void MX_RTC_Init(void){.../* USER CODE BEGIN Check_RTC_BKUP */if (HAL_RTCEx_BKUPRead(&hrtc, RTC_BKP_DR0) == 0x5A5AA5A5){return;}else{HAL_RTCEx_BKUPWrite(&hrtc, RTC_BKP_DR0, 0x5A5AA5A5);}/* USER CODE END Check_RTC_BKUP */...}

HSagh.1 · 2023-05-29

Actually I'm using DMA in circular mode so I don't have to keep calling that function.Anyway, this does not answer my quesion. If you have a look at the comment in the above line, it says "If all expected data are received, do nothing, (DMA cplt call...

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CAN bus stop working when cpu is put in sleep (STM32F205VGTX)

UART interrupt handler callback is called twice, if bus idle happens at "dma pos"="half dma buffer size"

Re: CAN bus stop working when cpu is put in sleep (STM32F205VGTX)

Re: How to avoid reset RTC after wake up from standby mode

Re: UART interrupt handler callback is called twice, if bus idle happens at "dma pos"="half dma buffer size"