Ask questions, find answers, and share insights on STM32 products and their technical features.
Posted on July 11, 2018 at 17:03I'm curious if anyone else has seen this issue.We are using 20 ppm LSE at 32768hz as the clock source for our RTC. Over an 8 hour period, we are a few seconds off vs. the expected max of .6 S for the 20 ppm.Our syste...
Posted on January 18, 2018 at 14:37 Hey everyone, I have a quick question concerning the 4 bit sdio sdcard implementation. The 1 bit sdio seems to work perfectly. I have absolutely no issues, although when implementing 4 bit it completely bugs ou...
Posted on July 11, 2018 at 01:56Hi,I am currently writing a program for the part STM32L031F6. I am using StopMode to put the uController to sleep.I have a couple of questions I was wonder if you could help.1. When waking up from stop mode, do I nee...
Posted on July 11, 2018 at 20:13Hi,I used to have the SPI1 working connected to MAX31865 breakout board. For some reason it's not working at all now. I traced into the code, seems HAL_SPI_Transmit() failed on __HAL_SPI_GET_FLAG(hspi, SPI_FLAG_TXE) u...
Posted on July 09, 2018 at 15:06I'm having trouble entering stop2 -- instead of going to stop2 my code seems to enter sleep; this is based upon measuring power levels -- I have the RTC fed by an external crystal and a 1 second interval alarm. I can...
Posted on October 10, 2016 at 13:12Hello, should i connect 3V battery to Vss or Vssa for RTC backup (external 32768 resonator)? #too-vague #stm32-vbat-rtc
Posted on July 09, 2018 at 14:24 Hi, The MCU is STM32F4 I put the Timer2 (60MHz clock) to trigger every 100mS. it means it triggers its interrupt and ADC every 100mS. Below is the configuration of the ADC and Timer2. I checked the TIM2 interr...
Posted on July 10, 2018 at 18:35I have tracked down another oversight using CubeMX to generate FatFs code for STM32H743i_Eval. In the STM32Cube\Repository\STM32Cube_FW_H7_V1.2.0\Projects\STM32H743I_EVAL\Applications\FatFs\FatFs_uSD_DMA_RTOS I found...
Posted on July 07, 2018 at 01:39Trying to figure out reasons why a CubeMX build cannot replicate the functionality of the repo application:STM32Cube\Repository\STM32Cube_FW_H7_V1.2.0\Projects\STM32H743I_EVAL\Applications\FatFs\FatFs_uSD_DMA_RTOS.The...
Posted on December 02, 2017 at 22:01Is it just me, or is the STM32CubeH7 missing the low-layer API? I can't seem to select LL instead of HAL on the individual drivers in STM32CubeMX under settings like I can on STM32F7 cube projects. In the descri...
