STM32 MCUs Products

I2C in DMA mode - deadlock on I2C interrupt

Has anyone have similiar issues ? I got I2C DMA writes working nicely on table, but in real application there are disturbances which cause false start condition on the bus.This happen when I2C HAL driver has "lock" on I2C handle - so incoming interr...

program counter is hitting WWDG_IRQHandler without enabling the Watchdog. what could be the problem/ cause for this

Hi,please find the attached register values of WWDG register on Reset positionRegards,Sudheer

Forcing Capture-Compare-Register to clear [STM32H7]

I'm trying to count the number transition during the time another process is taking place. Don't need frequency, just the counts.So I've enabled TIM8CH3 for capture-compare, and have verified that CCR3 does change when there are transitions on th...

Interrupt mapping to NVIC ISR vector

I was looking at the ARM M7 reference manual, and it shows an empty NVIC ISR vector from 0x40 to 0x3fc. When I look at the file startup_stm32h725xx.s it defines specific interrupts mapped to the ISR vector. Are these hard mapped by the EXTI block an...

STM32F767 ZI, Trouble understanding how HAL_I2C_MASTER transmit works. Trying to send 32 bit adc data over I2C

So I am trying to send an ADC value that I receiving on the board over I2C to another device. I have adc_Value as a 32 bit one since the ADC read function on HAL is 32 bits. I want to send this over i2c. Currently I have this.  HAL_ADC_Start(&hadc1);...

Hello! I want to trigger with timer the ADC to convert with interrupt or DMA but my program stops at the adress 0xfff4ea. I did all the settings and I introduced the callback function in main. I think it's a problem with this callback. What is wrong?

What is the maximum baud rate for STM32F439ZI-Nucleo144 when using USART?

I am using 115200 bits/s for now and was wondering if I can increase that. If yes, how much can I go until? I checked the datasheet for this board and nothing was mentioned about the baud rate.

trace_printf using OS_USE_TRACE_SEMIHOSTING_DEBUG works fine with Eclipse and STM32F405, but not with STM32F446 and System Workbench

I have two electronic products that use OS_USE_TRACE_SEMIHOSTING_DEBUG:   Microcontroller  IDE 1. STM32F405     Eclipse 2. STM32F446     System WorkbenchI use ST-LINK/V2 to debug both of them and...