Hi,In my project, I need to use an SD card and also GUI taht requires dcache.I noticed that when SCB_EnableDCache() is called in main(), f_open(..)  returns FR_NO_FILESYSTEM.it works normally when it is SCB_EnableDCache() is not called.I suppose I n...

Hello,I use STM32F100RBT. I want to enter STANDBY mode and exit every second.It works well, except for one issue: it always wakes up 1 second later.I run the following code, where I get the current time, print it and set an alarm for the next second ...

Hello, I'm using STM32F100RBT. How can I use HAL_RTCEx_SetSecond_IT to exit STANDBY mode?I'm able to exit STANDBY using ALARM, and able to get an interrupt every second using HAL_RTCEx_SetSecond_IT , but I can't wake up from standby with it.What shou...

Hello,I have a system using STM32F100RBT needs wake up from standby mode every second.Some operations it conducts when it wakes might take longer than a second.Each time before going to sleep, I read the current RTC time, and set an alarm for this ti...

Hello, all!I'm using STM32F100RBT.I have the following code:printf("hello\n"); while(1) { HAL_PWR_EnterSTOPMode(PWR_MAINREGULATOR_ON, PWR_STOPENTRY_WFI); HAL_Delay(100); printf("***\n"); HAL_Delay(100); }The first print before the loop is...