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...


Resolved! add offset for application start address

Hi,I've ran into an issue which is about start address of an application. I'm using an own bootloader to switch between two different applications. For the application I changed the start address in file to 0x08040000. That works perfectly f...

STM32L496 I2C Reading Error

Hello:  This is weird problem. We have a STM32L496 system that handles multiple I2C devices through its three I2C buses. The I2C#1 (1MHz) has 10 NXP devices, #2 (400kHz) has 4 TI TMP117 chips, and #3 (400kHz) miscellaneous devices including other TI ...

WQ by Associate III
  • 0 replies
  • 0 kudos

Password for USB Device

I am using STM32F4 MCU in USB device MSC mode with data stored on SD card. I have also standard 16X2 LCD & Membrane keypad connected to MCU I want to make interface where once USB device is connected to laptop, the data is showed on laptop after ente...

Nico3 by Senior
  • 3 replies
  • 1 kudos

Floating point calculation in STM32L431CBT6

Dear all,I am having some issues with precision of floating point calculations with STM32L431CBT6.As one can see that when I do floating point calculation I am getting 1.23000002 instead of 1.23.Can anyone suggest more efficient and accurate way to d...

DKhan.1 by Associate II
  • 6 replies
  • 6 kudos

Which boot should I use on my L476?

I'm looking for a simple solution to update firmware on my application developed on a STM32L476, with the minimum effort.As far as I understood this chip already has a boot on it that allows to get data via UART1 and a proprietary protocol from STM.I...

Resolved! Detect Debugger Connected To STM32L0 ?

Posted on December 13, 2017 at 17:32   In Cortex-M3, M4, etc, we can just check the DEBUGEN bit in DHCSR (the Debug Halting Control and Status Register) in Cortex-M...

STM32L452CEU6 48QFPN STOP mode issue

Hi,We are using STM32L452CEU6 with 48QFPN package and trying implement sleep mode 2 inside Azure rtos threadx. But the device is not entering stop mode even after calling the HAL_PWREx_EnterSTOP2Mode(). But it works fine if I call it before calling M...