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! STM32 Flash Write fail

Due to engineering requirements, the code is divided into two parts: USB DFU, including encrypted signature verification, and the APP code with header signature file. Currently, there is an attempt to rewrite the flash in the USB DFU orange section f...

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YJHUNG by Associate II
  • 2 replies
  • 3 kudos

Resolved! VREFBUF and STM32H563VI

I have VREFBUF configured for output to comparator on my board. I see this on MCU Vref+ pin...Is 1.2MHz waveform typical? Are capacitors on Vref+ expected to smooth? I looked for avg closer to 2.5v (VREFBUF_VOLTAGE_SCALE0). How close to 2.5v should t...

mccabehm by Associate III
  • 4 replies
  • 0 kudos

is there a need for early initialization, SystemInit ?

So the startup code first sets the stack pointer, and then jumps to SystemInit for early initialization, then copies the initial values of data and zeroes bss region and then kickstarts C startup. Is there anything hardware related that has to be don...

mete by Senior
  • 7 replies
  • 2 kudos

STM32H755 I2C RXNE not always set in Master Receive

Hi there,We use the I2C peripheral of the STM32H755ZI MCU. We operate the I2C in master mode and normally everything works perfectly.However, sometimes the SCL line is kept low for bit longer during an I2C read operation, using the HAL function "HAL_...

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PAHA by Associate II
  • 0 replies
  • 0 kudos

STM32H563 EDATA Size - Code Generation Issue

Hello,I am using the Cube Code Generator, within the STM32CubeIDE (version 1.13.1) for an STM32H563, and have configured the Flash Data Sectors to use the maximum 8 sectors per bank for EDATA. The valid range for the EDATA sector size is 0 - 7, as sh...


Microcontroller debug unit on STM32H753

Hello, I'm having an issue to use the Microcontroller debug unit (DBGMCU) on STM32H753. I have got IWDG set up and working as expected and would like to have the IWDG frozen during debugging. I have set the DBG_IIWDG1 (bit 18) of register DBGMCU_APB4...

seb536 by Associate
  • 1 replies
  • 0 kudos

for an inverter PWM -ADC -feedback -synching

What is the best meathd to of feedback method In sineinverter (like commercial) ?is it good by a forumal appling instead using look up rable .It saves the memoryIf i use look up tableconst unsigned char sin_table[416]={0, 16, 32, 47, 62, 77, 91, 103,...