STM32 MCUs Products

clock setting, STM32H750

Hello,I have two different clock setting and only one of them works - but I have no idea why?The only difference is the PLLM and PLLN value: RCC_OscInitStruct.PLL.PLLM = 25; // 5 NOT OK RCC_OscInitStruct.PLL.PLLN = 432; // 160 NOT OKWould appreciate ...

Hardware reset need after programming to lower current consumption.

When I program to my stm32 MCU, I need to hard reset to lower the current consumption. I mean, after I programmed the MCU, the board consume 580uA. Then I do a software reset via NRST and still had the same current consumption. Then I do a hard reset...

How to configure RTC to work in wakeup interrupt

Hi, I am new to stm32 controller and trying to do RTC using baremetal. I like to wakeup my rtc in a second interval using wakeup interrupt. How can we configure the registers for the same.​

FW upgrade via DFU

I am trying to upgrade my uC via dfu-util however i receive an error and i do not know how could i debug it dfu-util: Error during download get_statusdfu-util 0.9Opening DFU capable USB device...ID 0483:df11Run-time device DFU version 011aClaiming US...

STM32G431 Break input for PWMs

I am generating two PWMs with TIM1 CH1 and CH2 .I want to stop the PWMs when Break input is present. I have configured the STM32 Break input in the STM32cubeIDE and able to stop the PWMs when Break input is HIGH(3.3v).I needed the reverse way now lik...

in STM32G474 , Increasing the PLL frequency to 160Mhz (max allowable) make the core lock up and the core frequency can be increead to 160MHz only if AHB is prescaled

Is there any way to "pace" bytes in an I2C transmission?

Hi,I am interfacing to a TI device that requires a 100us delay between each I2C byte and I can't think of any way that doesn't involve "hacking", i.e. using timer delays, interrupts, etc. Is there a more elegant way to do it using the ST I2C implemen...

STM32Cube Programmer 'No STM32 target found' error using b96bf446ve Nucleo board

I tried all the walkthrough's form the internet, but couldn't connect the STM32F446VE i.e. the b96bf446ve nucleo board.I know form other boards that one can use an external programmer. The ST programmer is the only device that's recognized.Can someon...

STM32 TIM->CCR1 value interrupt

I try to generete interrupt when TIM->CNT = OverVal my code below ;I am so confused, thanks for nowvoid Init(){  TIM_ICInitStructure.TIM_Channel = TIM_Channel_1; //TIM_Channel_3  TIM_ICInitStructure.TIM_ICPolarity = TIM_ICPolarity_Falling;  TIM_ICIni...