I'm using SMBus on an STM32F303. The application has the STM32 as host, SMBUS charger and SMBUS battery, the charger and STM32 can act as master.I need to infrequently read from the battery and want to check for IDLE before initiating a transfer.I've...
When I2C "Speed mode" changes in CubeMX/IDE from Standard to Fast, it seems that only the Init.Timing value changes in generated code.This value goes into TIMINGR register of the I2C .Am I missing anything or this value defines the "speed mode" entir...
I have a strange situation with my implementation that in all other cases runs smoothly, tested with baud rates up to ~250K. During an interaction with a specific peer that is instructed to reset, a framing error is detected when this peer reappears ...
For the external RTC clock of stm32f765igt6 chip, we use a 32.768KHz crystal oscillator of Epson, which is equipped with 10PF capacitor. Some of them will make the MCU unable to start, and reduce the capacitance value to 2pF, MCU can start, but we ac...
Hello,I have been testing a custom board using the STM32F767ZI/VI for the last two weeks, and most things have been going well. I ran into an issue using CAN on the VI for some reason so I decided to switch to the ZI, and things were working well unt...
Hello,both STM32L4 and G4 reference describe in LPTIM->CFGRBit 21 WAVPOL: Waveform shape polarity The WAVEPOL bit controls the output polarity 0: The LPTIM output reflects the compare results between LPTIM_ARR and LPTIM_CMP registersThis...
The LPTIM erratum "MCU may remain stuck in LPTIM interrupt when clearing event flag" (to be found in errata of STM32 having LPTIM, which got updated since cca the end of 2018 -- ST please update *all* errata timely!) contains this description:This l...
Hi,I want to set the dual-core MCU into stop mode respectively with allocated peripheral like UART/ADC/I2C/SPI/TIMER, DeInit the peripheral and disable the corresponding clock and start a lptimer to wake up the core before entering the stop mode, lpt...
We are trying to build MCU application that require wakeup from standby mode using wakeup pins. MCU we are using STM32L412KB and it consists of 2 wakeup pins on PA0 and PA2.As per figure 3 we want to connect PA2 wakeup pin to USB V sense to wakeup us...
I am using STM32F7508-DK kit and Using I2C as a slave whereas ESP32 is a master, By using HAL_I2C_Slave_Receive_IT and HAL_I2C_Slave_Transmit_IT API I am able to do one way communication either read or write, but in my application I required read and...
