Forum Posts
STM32G030F6 I2C2 set to slave mode, it can not work fine.
I am newer in STM32G030 develop.I tried to set STM32G030F6 I2C2 slave mode with PC.Q1.Using "HAL_I2C_Slave_Transmit(); it seems Master (PC) read 8 bytes later and stop. The other data will not read.Q2. If used HAL_I2C_Slave_Transmit_IT(), It only wr...
Can't figure out why RTC wakeup event doesn't work
Hello,I've followed all the steps required to generate and handle a RTC wakeup in the manual, but it still doesn't work. I can't figure out why that doesn't work.The goal of the following code is that, when I click the reset button of my nucleo L152-...
Resolved! STM32L412KB clock options
Im using a STM32L412KB for the first time and Im a little confused about the clock options. I can't seem to change the clock speed (input frequency) in cubeIDE, it's always stuck on 8MHz. However I notice there is an internal oscillator - does this m...
Resolved! Missing "hysteresis voltage between Schmitt trigger switching levels" in datasheet
In the datasheet of the STM32F765ZI and many other datasheets I have read, the specification value of hysteresis voltage between Schmitt trigger switching levels is missing. There is a comment (8) under the table (here table 66 I/O static charasterit...
Exact meaning of VIL and VIH and the resulting switching point between HIGH and LOW
We want to realise a cheap measurement of a external voltage over a voltage divider with a STM32F765ZI processor. We calculate VIL with the formula "0,35*VDD-0,04" which is guaranteed by design. On base of this calulated VIL we calculate our voltage ...
We have multiple STM32 uC on board and would like to share as many connections for programming the parts.
Is there a way to connect them in parallel with some individual enable to reduce the outward interface of the board. ie maybe connect everything in parallel except for RST line or ??? any suggestions would be appreciated
32F051K86 GPIO initialization problem LL_ libraries
I have a bootloader + 1 wire serial uploader codebecause of space restrictions it uses LL_ libraries for initialization.We have different hardware designs, when using PA2 as IO pin it works !when using PB4 as IO it does not !The main program uses HAL...
Setting up DMA for UART on the H745 M4 Chip
I'm trying to setup a GPS sensor (UBlox Max8Q) with a H745 Nucleo board using UART DMA using STM32CubeIDE. However, I’m having problems with setting up my board properly. My plan is to eventually do all my data acquisition on the M4 chip and do compu...
