STM32 MCUs products

Showing results for 
Search instead for 
Did you mean: 

Forum Posts

New possibilities for the ultra-low power segment!

STM32U0 is the first Cortex-M0+ with a static consumption of only 160 nA in standby mode with RTC (Real-Time Clock) and 16 nA in shutdown. It also achieves 118 points in CoreMark and targets SESIP level 3 and PSA level 1 focusing on firmware code pro...


Getting HAL_ERROR while using I2C in Fast mode pulse

Hi All,I trying to interface MAX6651 Device using I2C module using STM32F410C8U6 MCU.Device address is 0x36 But when i'm using HAL_FMPI2C_IsDeviceReady(&hfmpi2c1, 0x36 , 2, 100); this API returning the valueHAL_ERROR.Here are some snaps Anybody look ...

Screenshot 2023-11-07 151633.png Screenshot 2023-11-07 151523.png


Hi all,I am trying to configure burst dma on my board (stm32g474). I have successfully configure the dma for single register, however, when I want to configure dma for more than one register, I failed to do that as it only allow me to fill one addres...

OFN by Associate II
  • 2 replies
  • 0 kudos

STM32G0B1 Options Bytes

Dear, I currently use a STM32G0B1 on a custom board ans all worked fine until now. My firmware change the options bytes at running to disable the dual bank and using and single bank Flash.At the power up, the firmware check the options bytes and chan...

YDann.7 by Associate III
  • 8 replies
  • 0 kudos

Resolved! Problem with I2C Interface on STM32F469I-DISCO

Hello, I am trying to write something on the I2C bus to a digital potineometer using the STM32F469I-DISCO board but I get no result, even no response from the device and its like there is no device connected on the bus. I tried the same potineometer ...

mids400 by Associate III
  • 3 replies
  • 1 kudos

Resolved! How to switch a pin between open drain and ground

Hi, I have a pin labeled "DISABLE_HV" that I want switch between open drain and ground (and vice versa) to switch-off and switch-on a DC-DC converter. How can I implement this functionality in the code using HAL library?

ECiot.1 by Associate II
  • 4 replies
  • 1 kudos

Resolved! LPTimer counts only to 1 if running on LSE

Hi, I'm using on a STM32L4R9 a LPTimer1 in interrupt mode. If i use it with the PCLK1, HSI or LSI as clocksource it works as expected. It counts to the ARR value and then the interrupt occours. If i use the LSE as clocksource the LPTimer seems only t...