STM32 MCUs products

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STM32 low power standby with 5 wakeup sources?

I would like to build a 5-button remote (RF 868 Mhz) and was thinking of using the STM32G031F6(The RF is provided using an external chip, similar to Si4455)However the STM32G031F6 has only 4 x SYS_WAKEUP pins.Is there anyway to wake up from standby u...

KMill by Associate III
  • 4 replies
  • 0 kudos

Resolved! Rising and falling edge on GPIO_STM32G4

Hi,I am working with STM32G491RE.I am giving pulse to GPIO pin from function generator. That pulse will be 2 msec on time and 8msec off time.I need to make flag high if the signal from function generator lost.Can anyone suggest me how to do this?void...


Interrupt fires multiple times on EXTI9-5

hi, I'm working on a STM32F303CC. on this mcu I'm using 6 buttons as interrupts. 5 of these buttons are connected to EXTI15-10 and one to EXTI9-5. the buttons on EXTI15-10 are working perfectly fine. although, the button on EXTI9-5 fires an incredibl...

ROtte by Associate
  • 3 replies
  • 1 kudos

Resolved! 5V Tolerant GPIO pins (STM32F030K6T6)

I am interfacing a 5V PWM signal with an STM32F030K6T6 MCU using PB0. According to the datasheet this pin is 5V Tolerant. In the past, regardless of a pin's "tolerance" to 5V I have always used a level shifter to change this 5V signal to a 3.3V sig...

Resolved! Missing info in reference manual

In the STM32L562 reference manual (RM0438), v7.0, the section 11.6.13 "GPIO register map" is missing the registers MODER and PUPDR (which are documented in the preceding sections).

SZano by Associate III
  • 1 replies
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I2C sensor on USART 2 Serial communication

Hello, I am using the embedded coder support package in simulink to interface with my onboard MEMS acceleration sensor (LSM303AGR) on my STM32F411VET discovery board. I could successfully connect and run simple LED program through USART2 on simulink ...

Resolved! GPIO read/write not working on custom STM32H735 board

Hello,I'm using a custom board based on a STM32H735 with various GPIO inputs and outputs. The STM32 is packaged as a 0.5mil pitch BGA and the board assembly has been outsourced.I'm able to flash a program on the MCU and debug it by adding breakpoints...

TerMarK by Associate II
  • 11 replies
  • 2 kudos

Bitwise shift left STM32F723

Hi there i m a student working on STM32F723 the first time, I encountered an register setting example as follows: GPIOC->MODER |= ((2<<(6*2)) \ (2<<(7*2)));  i konw its setting the GPIO register but whats the meaning of * and 2<< at the beginning sen...

StanJerm by Associate II
  • 8 replies
  • 1 kudos