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...


Sigma-Delta ADC STM32F373 calibration problem

Hi,I have connected three channels of the SDADC in the STM32F373 with an external voltage reference of 1.225V. The selected mode of the ADC is Single-ended zero-volt reference mode, and i am reading these channels using the "injected conversion" as i...

DCajigal by Associate III
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Resolved! Can VREF+ be zero?

In STM32F437 data sheet it says VDDA - VREF+ < 1.2 V.Is that a "global" limitation or just a working limitation?If VDDA is 3.3V and VREF+ is 0V, can that harm the chip, or is it just that the conversions don't work right?

Problem with code slowness

Hi all,​I am using the Delay​ function as follows.static void Delay(volatile int d) {  d = d*20;  while (d--) asm volatile("NOP"); }​​However, sometimes when adding printf code, Delay function becomes slow.So, when I analyzed the cause, I was able to...

sim20 by Associate II
  • 1 replies
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Utilize SDRAM on STM32H743 EVAL2 Board

I'm having trouble making use of SDRAM (external device memory) on the STM32H743 EVAL2 board. Specifically, I'm trying to make use of FMC SDRAM Bank 2 (Region: External Devices) to store a large array. Here are code snippets that I have added/modifi...


STM32L412 UART bootloader not writing data

Hi, I'm curentlly in the process of switching to a STM32L412 from an STM32F3 on a custom design and I'm having an issue with the UART bootloader. The bootloader worked as intended on the F3 chip but on the L4 chip I can't write to the chip. Everythin...

fabces by Associate
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Resolved! How to add fsdata.c file to project?

Posted on March 19, 2017 at 21:42I have the STM32F407 Discovery board running with LWIP. I am able to ping the board and get replies.I now want to get a Web Server running on the board. I used CubeMX and Enabled LWIP_HTTPD on the HTTPD configuration...

STM32F4 Custom board HID device

Hello. I am developing a custom board with STM32F405. I want it to work as custom HID device. The board must connect to the PC through an already existent driver software. I tested he board with the Keyboard and Custom HID device examples in the pack...

VCapu by Associate III
  • 4 replies
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how to use osMessageQueueNew

hello,I am using ADC for data acquisition using 46 uSec. I would like to do some calculation every 4 samples. I am using timer to trigger Adc reading. Can I use osMessageQueue in ADC complete conversion call back function to put 4 new adc reading int...