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...

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Use rising/failling edge to start PWM

Hello, I work on STM32F407.I want to start the PWM 1 on the rising edge of the main PWM and start the PWM 2 on the failling edge of the main PWM. But I don't know how I can detect the rising/failling edge...Can you help me please ? Thanks a lot.

FightKol by Associate II
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HAL_CAN_AddTxMessage() issue

Posted on June 13, 2018 at 21:06 Hi, I am using Nucleo-144 connecting CAN RX/TX PD0/PD1 to external CAN transceiver, PEAK. The function is pretty straight forward. Prepare data then call HAL_CAN_AddTxMessage() to transmit. CAN_TxHeaderTypeDe...

Why are floating point operations so slow on my Nucleo

I wanted to check speed of trigonometric operations on my Nucleo L432KC. I toggle pin state and look at my oscilloscope. I use Arduino IDE.The calculations for trigonometric functions turned out to take several hundred of clock cycles. I was disappoi...

manx by Associate III
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STM32F446xx - measuring system clock on MC01

Hello everyone,I have a development board with the MCU specified in the title. I have used Keil to create a project and flash my board. According to what I understood from the documentation I read and by looking at the startup code:MCU is by default ...

PPopo by Senior
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Resolved! Unable to set PLL as main clock derived from the HSI

Hi All,I am working with the STM32F302R8. I want to set the system clock as the PLL through derived from the HSI. I want a clock of 64MHz which I should have set through the appropriate registers.I think I have set all I need however, after the RCC c...

glenn0010 by Associate III
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STM32F427 suddenly in Read Protected Secure Mode

Developing code / debugging 2 days ago and all was well.This morning I attempted to flash the mcu (using ST-Link / V2) and it reported back that the Processor failed to halt.Switched to my J-Link and it reported that the MCU was in an Active Read Pro...

Joe.H by Senior
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Flash write/Read program does not work with debugger

I am working with G071 neucleo board. I am trying to debug a program that writes and reads for EEPROM emulation. However, it does not work as expected in dubug mode. The example program provided by ST for Flash runs well in run mode ( Without debugge...

NGT by Associate
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Resolved! External SRAM issue

Hello,I hope someone can help with this riddle.We just started working with our custom board, based on stm32h743 (untill now we worked with eval stm32h743-eval board).The internal memories, GPIOs and other interfaces works OK, but we have the followi...

ranran by Senior II
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Sector Erasing in STM32--chip crashes on 256kB erase

I am working on erasing sectors sequentially in my MCU, from Sector 2 through Sector 7 (the size of flash where my firmware will live). I have found that sequential sector erases will occasionally fail, and any attempt to erase a sector of size 256k...

rsoc by Associate III
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