STM32 MCUs Products

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Resolved! STM32F407 with LAN8742A custom board init issue

Hi I have created Ethernet custom board using STM32F407 + LAN8742A attached is my schematic design based on Nucleo board for STM32F429ZI.on my custom board MX_LWIP_Init is getting error in HAL_ETH_Init in following section.    /* Wait for software r...

STM32H757: Can't enter Low Power Mode for Cortex M4

GOAL:Currently I am trying to get to know the low power capabilities with the STM32H757I-Eval Board. Therefore I want to write a simple program. I want to use only the Cortex-M4 for this. The program running on m4 should state with an uart message (M...

Michael4 by Associate
  • 706 Views
  • 0 replies
  • 0 kudos

Resolved! STM32H5 VDDIO2

Hi,I survey an MCU that IO can be operated in 1.08V to 3.6V.The STM32H563xx could reach my request.But the DS shows the only 10 IOs can be operated in 1.08V to 3.6V.Does STM32H563xx have any setting to extend low power IOs?Or other MCU part number ca...

Goldberg_0-1732380441716.png
Goldberg by Associate II
  • 945 Views
  • 3 replies
  • 1 kudos

How to use Timer6 and Timer7 at the same time?

I used Timer6 and Timer7 on STM32L433CCT6, used Timer6 for tone generation and Timer7 for tone toggle generation, the ISR is: void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef* htim) { if(htim == &htim6) { HAL_GPIO_TogglePin(GPIOA, GPIO_PIN_0)...

MQi.1 by Senior II
  • 1017 Views
  • 5 replies
  • 1 kudos

Resolved! Some sort of printf via SWV

Hello,Firstly I'd like to say I have googled for examples and worked independently by reading ST docs and looked at the suggested topics before posting. I did begin to hijack another thread but I'll start one instead.What a long and painful tradition...

Debug1.PNG Debug2.PNG RCC Settings.PNG Clock Page.PNG

STM32f103c8T6 inaccurate ADC readings

Hello, I'm using stm32f103c8t6 board and trying to get simple voltage divider readings. I'm also using multimeter to measure voltage and well I'm getting 0.2 sometimes 0.4 V error. Is this normal? I really need precision, 0.2 or 0,4 volts are reall...

DSimp.1 by Associate III
  • 1212 Views
  • 3 replies
  • 1 kudos

STM32 Editing Linker Script

Hello everyone, I am using STM32F767ZI which in the reference manual has ITCM, DTCM, SRAM1 and SRAM2 but in the linker script it is just RAM so I am trying to change it from: MEMORY{ RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 512K FLASH (rx) : ORI...

Faisal129 by Associate II
  • 1515 Views
  • 6 replies
  • 4 kudos

Inquiry about integrated flash memory STM32H745XL

Good morning to all,I was wanting to save data in the non volatile memory of my STM32H745i-Disk with the STM32H745XL micro.It is only to save the following structure to read it every time the microcontroller is turned on and modify it from time to ti...

Maximiliano_1-1732370568224.png Maximiliano_2-1732370609744.png Maximiliano_0-1732420442028.png

I2C RXNE flag gets reset without reading RXDR

Hello,I am implementing my own I2C drivers based on the LL drivers provided by stm32g031xxxx (STM is the only master) Transmission and Reception all work very well but I am trying to get away with some optimization by starting a I2C read from a slave...