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...


STM32 UART receives Null character(\0) on reset.

Project Details:The project consists of two STM32 MCUs connected over UART (without any external pull up resistors). One STM32L4 MCU (LPUART1) acts as an AT master and other STM32L0 MCU (UART 1) acts as an AT slave. AT slave is configured to wake up ...

KK.4 by Associate II
  • 3 replies
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Resolved! STM32F429 i2c master transmit always returns busy

Hi,I'm using STM32F429 to talk to TI BQ40Z50 via I2C, and I ran into an issue I have no clue.First of all, the code simply reads registers, and it works on TI BQ20Z95. The same code doesn't work on BQ40Z50. The HAL library always returns HAL_BUSY, an...

YKuo.1 by Associate II
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Resolved! What is the accuracy of the ADC watchdog [STM32F303]?

I have successfully configured the adc watchdog. But i am a bit dissapointed of the accuracy. I set the bounds to 1000 and 3000, but when i read the values of the adc from the watchdog interrupt, i get also values from within the window (up to 1025/2...

Tobe by Senior III
  • 11 replies
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HAL i2c & SPI initialization help needed

Hi.I'm using PlatformIO with stm32duino with a NUCLEO-L476RG. I finally figured out how to configure the clocks in CubeMX and then copy the "void SystemClock_Config(void)" function into my main.cpp code and it seems to work great.One question I have ...

YGagn.1 by Associate
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Resolved! Time delay when operating with DAC in STM32L4

Hi everyone!I use 8 MHz external oscillator for my MCU. For TIM1 there is no prescaler in CUBE, so I expect this timer to tick with pure 8MHz frequency. And therefore I expect to see 0.125 us * 2 * 2 = 0.5 us period of signal. But actually I have 24 ...

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GMate.2 by Associate
  • 3 replies
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