STM32 MCUs Products

STM32L4 Can JTAG pins be re-used after initial firmware downlod?

I am trying to use the JTAG pins for other purposes if possible. Is there a way to separate both programming and functional modes?

Initialize IS45S16320F SDRAM on FMC of STM32H745

Hi all,We have an SDRAM connected on the FMC interface of the STM32H745, wired as in the attached screenshots.What is notice is that i am writing 0x12345678, but i get 0x12341234. This is one, the other is that also these values are gone after some t...

My MISO signals (SPI) always return 0 during a multy transfer bytes

I work with SAM3X8E microcontroller (datasheet : https://ww1.microchip.com/downloads/en/DeviceDoc/Atmel-11057-32-bit-Cortex-M3-Microcontroller-SAM3X-SAM3A_Datasheet.pdf, page 676 to 707 for SPI)I want to make a multi transfer bytes thanks to SPI Bus....

How to measure the resistance of a resistor connected at adc pin , what is the sink voltage at adc pin

Hi , I am working on stm32f070c6 MCU , in that by using adc ,I want to measure the resistance of resistor connected at adc pin, by using simple formula of ohms law , I want to know how much current sink at an single adc pin , by knowing of current(i)...

Using SEGGER system view with STM32F767ZI Nucleo board ?

Hi Guys ! I am trying to record the activity of my MCU running RTOS . I am currently in efforts to integrate the segger system view for this particular usage. I am currently stuck in the process of RTOS Patching error . Can anyone provide suggestions...

How do I change the direction of a DMA request for the SDMMC device?

Hi, i'm trying to use a single DMA channel to both read/write to the SDMMC. See here (https://community.st.com/s/question/0D50X00009XkWO5/getting-sdmmc-to-work-with-dma2-channel-4).When generating the SDMMC DMA configuration using cubeMX it results i...

We want to use a microphone in a design. Our processor is STM32F722RCT6, the MEMS we are considering is MP23DB01HP, but how should we porting for PDM, can you give an example? Do I need to use another processor?

STLink virtual com port driver digital signature verification problem

After connecting a STN32H735G-DK board to my windows 7 pro pc, the com port driver gives an error "Windows cannot verify the digital signature for the drivers required for this device. A recent hardware or software change might have installed a file ...

STM32F3 DMA triggered by ADC triggered by TIM without HAL

Hello,currently I'am working on a STM32 project with the CMSIS core. I want the ADC getting triggered by a Timer (TIM3). Iam trying to do that with the TRGO option.The ADC should sample 4 different channels. Each channel then gets transfered by the D...