STM32 MCUs Products

Thermostat Function Problem

Hello Everyone!I have the problem with function below.When I have a Hyst>0 function is working well.Below Set Point, the function returns 0, and above SetPoint+Hyst the function returns 1.Something similar as Thermostat is operating.But when Hyst<0, ...

Do you have some idea to setting-up an unknown state, caused by another device slower than the STM32 to be started ?

Hello,I'm having a STM32F407 and when I'm using the UART connectivity, connected at another device unplugged and with an unknown state, this unknown state cause, sometimes, an abnormal starting of my STM32F407.My other device is a Raspberry Pi, which...

STM32U5 RTC min and sec count to more than 59

Hi I am trying to get the RTC to work on the STM32U5 Nucleo board. But when I read out the time I sometimes get a second and minute value that is more than 59. Any ideas as to how that happens? I have checked that it is not because I write a higher ...

How to use slave mode on a STM32F429 ?

I have to use two STM32F429 discovery kits. One as a master and the other as a slave in a I2C protocol. My problem is about the slave one. I don't know how to get the address belongs to its and if it doesn't need how the slave will understand that it...

STM32H725VGT6 UART DMA Receive not working

Hello,As mentioned in DMA is not working on STM32H7 devicesI applied solution before DMA receiveSCB_InvalidateDCache_by_Addr((uint32_t*)(((uint32_t)rx_buffer) & ~(uint32_t)0x1F), RX_LENGTH+32);but it just get stuck in this instruction and not executi...

can I use ATSAM4SA16CB instead STM32f427 I can't find any STM32f427 in (Digikey or Mouser ) Is there anything wrong with this? When will the controllers be available in Mouers or Digikey

Issue in the I2C communication

I am facing an issue with the I2C communication. During the first run the communication between the MCU and the sensor is okay then I can read and write in the sensor's registers without a problem. However, when I try to debug a second time I receiv...

STM32L432KCU6 ADC returns incorrect values

Hello everyone,For a project I'm working on, I'm using the STM32L432KCU6 MCU. After writing some code I've managed to make the STM32L432KCU6 do what I want/need, except that the ADC returns incorrect values from some of the ADC inputs.In this project...

Could a running I2S DMA function affect my encoder interrupt service routine?

I have two things in code running simultaneously:1) A CODEC using I2S with DMA is initialized and started as soon as the code is compiled and flashed.2) I have an interrupt for my encoder which is used for selecting things from a menu.The problem I a...