STM32 MCUs Products

Using stm32(Bluepill) as ADC

Hello guys, I am working on a acoustic source localization project. I need to sample the amplified signal from Hydrophone. The acoustic source emits a sound frequency of 42khz. I need to sample this signal at a frequency of 100Khz or even 200khz(if p...

STM32 communication with a display via I2C over DMA

Hi Everyone,My problem relates to I2C communication when trying to send bytes to a display on address 0x78. First I tried with the plain I2C HAL function(blocking), but I realised that the MCU gets frozen because of the huge amount of data to be sent...

Stm32F407 Clock Configuration Issue

Hi, I am working on my Stm32F407 Discovery Board. I use CMSIS when I codding and I have some problems with PLLCFGR register. I want to using 168 mhz clock speed. This is my Clock Configuration code and I get problem in PLLM configuration in PLLCFGR r...

STM32H7 I2C DMA ll, just sending once

Hey guys, I am trying to get I2C working with DMA or without, but I am having similar issues with both. The I2C sends out the data correctly the first time via DMA and the DMA_TC interrupt is called, however it gets never called again. I can also see...

Is there any detail on leakage current of MCU input? I mean the characteristics of I leakage= f (V input). There is only "max 200nA @Vin=[0..VDD]" given. (STMH750, ADC capable inputs, but general info on any MCU input leakage also welcome)

STM32 Major LPTIMER documentation shortcoming or is it a silicon design error???

In looking at various LPTIM training documentation it's indicated very clearly that the LPTIMERs have a CNT reset as a function of setting bit 4 of the CR register. As this is an important capability, there seems to be a number of reference document...