Forum Posts
STM32F100RBT Avoiding RTC Time Race When Setting Alarm For 1 Second
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...
STM32F373 SDADC HAL after Calibration, do I need to manual put an offset error value to final calculate with sdadc output value?
HiAs a title, after I call HAL_SDADC_CalibrationStartand HAL_SDADC_PollForCalibEventfollow Refference Manual page 240, calibration progress will store an offset error value in OFFSETx[11:0] fields. So do I need to read this value and put in the calc...
ADC (DMA) overrun error at the fastest sampling speed (STM32F030RC)
Using ADC with DMA to read a bunch of analog inputs on a STM32F030RC, I am getting an error callback due to an overrun error if I select 1.5 cycles for the sampling time.Any slower sampling time seems to work OK.I'm confused about how this error coul...
STM32072B-EVAL Display
Hi, Just purchased a STM32072B-EVAL board and loaded an example project on it. I cleared it from memory using ST visual programmer and now the LCD display is blank (i use to see the GUI). Did i accidentally erase the GUI? If so can I download it back...
Hello! I´m new with stm mcu´s and I would like to know how to generate a 10ns pulse with stm32f407 discovery kit. Is it possible?
Hello! I´m new with stm mcu´s and I would like to know how to generate a 10ns pulse with stm32f407 discovery kit. Is it possible?
STM32F100 RTC Wake From Standby is always 1 Second Late
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 ...
Privilege for Interrupts
Hi, I want to deactivate all interrupts during a short period. I'm using __disable_irq();however, it says, that this can only be used in privilege mode. If I use this function my board crashes. I want to look up the privilege level, but the RM at pag...
SPI Master NSS always low in STM32F4
Posted on March 03, 2017 at 12:34Hi guys!I'm configuring the Nucleo 64 with the STM32F446RE to use SPI as a Master.The problem I'm having right now is that the NSS pin is always low. Clock and MOSI are perfect. What I would like is that the NSS is h...
Resolved! SDMMC - [STM32CubeF7][1.1x.0][stm32f7xx_hal_sd] SDMMC / DMA IRQ handlers data race
Usecase:Using the SDMMC module with DMA in HS mode (clock bypass @48MHz following CMD6 switch CMD), the SDMMC_IT_DTIMEOUT interrupt is raised when waiting few dozen of seconds after last successful data transfer (FATFS f_read in this case).The HAL_SD...
