STM32 MCUs Products

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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
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  • 0 replies
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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
  • 704 Views
  • 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...

DKhan1_0-1718037438449.png
DKhan.1 by Associate II
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  • 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) http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ddi0337e/CEGCJAHJ.htmlBut 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...