STM32 MCUs Products

We have developed a number of products based on STM32Fx processors and can now no longer find stock to buy. If you look on Farnells website they stock over 1000 different STM32 processors with only 4 in stock and the rest on a 1 year lead time.

https://uk.farnell.com/c/semiconductors-ics/microcontrollers-mcu?st=stm32fThis has been a problem for over a year, what alternatives can we use?

What is 0.5 bits or 1.5 bits?

I understand that what is shown in the picture is wrong, I just do not know how else to describe it.0.5 bit is 50% duty cycle?And 1.5 bits is 150% duty cycle?If the percentage of filling changes by 150%, then the data transmission frequency must also...

Register Level programming questions

I am just starting out with STM32 MCUs. Because I like pain, I am trying to do register level programming to make sure I really understand what the code is doing (rather than using automagically generated code). My environment is Visual Studio with...

STM32L552ZE FMC throws Hard Fault only when accessing sub-banks 2-4

Hi,I have configured the FMC for interfacing with a NOR flash on sub-banks 1 and 2 (NE1, and NE2). The FMC is configured for 16-bit data bus with 26 address lines. What follows is the configuration for two sub-banks on NE1 and NE2:/* FMC initializati...

Why STM32F746NG Discovery waste half of SDRAM and not use a 16bit bus SDRAM.

I have a project using stm32f765,now i want to migrate to stm32H743.I want to know if i can use the code that has been written for stm32f765 instead of writing a new one, If yes , is it enough to only change the header files name?

Hi community. I mean for example are some changes necessary in some HAL or LL APIs for different peripherals or i should leave it as the way they were written in pervious code(Code for stm32F765) ?

D flip-flop

Hi,I need to normalize the asynchronous transmission to a specific baudrate in real time. I know flip-flop D is fine, but I don't want to add extra elements to the layout. Can I do it with timers or maybe some other solution?

STM32F429 Sleep mode and Systick

Hi'I'm using an STM32F429 in a project that needs to enter to sleep mode.I can't determine if I need to disable manually the HAL tick previously to entering in sleep mode, or if the sleep mode enter instruction does it by itself. Can anyone tell me?T...