STM32 MCUs products

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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...


UART in Interrupt mode Stuck??

Hello all,I'm using STM32 F103CBT6 MCU on a custom board where MAXRS485 is used. Rx and Tx of the Modbus chip is connected to USART1 on the MCU.To receive and Transmit data I'm using UART in interrupt mode. The program also has 8 GPIO interrupts on m...

GSaw by Associate II
  • 3 replies
  • 0 kudos

Resolved! ADC Conversion time and Sampling time

I have an stm32f407g.In the reference manual (in the ADC section) I found several terms I am afraid I have confused between them.I would like to explain my reasoning with an example and get your feedback if I said something wrong. -------------------...

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luke514 by Senior
  • 7 replies
  • 4 kudos

Resolved! VREFBUF not working on STM32WLE5JC

Hello everyone,I'm trying to set up VREFBUF as an internal reference at 2.5V, but the configuration isn't working. I've seen there were issues with this (VREFBUF Enable Problem - STMicroelectronics Community), but even after rearranging the function ...

grf14 by Associate
  • 1 replies
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Resolved! ADC signal noise

Hi, I'm using stm32f429 disc1 adc1 PA4 and GND to get the ADC signal, the voltage of the signal is 300 mV. The signal that I'm getting after conversion has some noise, But the same signal when seen through an oscilloscope has no noise. The noise or d...

I2C error in sending data (for the oscilloscope)

Hello ! I've got a problem because I tried to check the SDA and SCL pins like in the picture :  Sorry for the paint picture (the oscilloscope was during classes so I don't have it right now).The output was all the time noises even thought the code wa...

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Xenon02 by Associate III
  • 10 replies
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simple LWIP UDP project not working with latest Cubmx 9.6.2

Hi,I'm using STM32H743ZI with STM32CubeMX 6.9.2 and STM32CubeIDE 1.13.1.I added new STM32 project using the CubeIDE GUI - selected the STM32H743ZI device and automatically the project was generated, I opend the IOC file and enabled the ETH + LWIP opt...

Mz.1 by Associate III
  • 10 replies
  • 0 kudos