STM32 MCUs Products

cancel
Showing results for 
Search instead for 
Did you mean: 

Forum Posts

New possibilities for the ultra-low power segment!

STM32U0 is the first Cortex-M0+ with a static consumption of only 160 nA in standby mode with RTC (Real-Time Clock) and 16 nA in shutdown. It also achieves 118 points in CoreMark and targets SESIP level 3 and PSA level 1 focusing on firmware code pro...

gif-stm32u0.gif

the RM0090 reference manual for 2014 ,in the description of the “Chip Select togglest�? different from RM00990 reference manual for 2018,why?

the RM0090 reference manual for 2014 ,in the description of the “Chip Select togglest�? different from RM00990 reference manual for 2018,which one is correct?The results of our tests are consistent with reference manual for 2014,Is it wrong in RM0099...

0690X0000087VffQAE.bmp 0690X0000087VfaQAE.bmp
cxiao.6 by Associate II
  • 833 Views
  • 8 replies
  • 0 kudos

I have a question,when changed cpu from stmf407 to stm32f427 .sometimes, read a wrong data from extern sram access by FMC ,it's happend in most of the cases in interrupt ,someone have the same problem?

my English is poor,In the same program ,cpu 407 do not have this problem,only happened in 427​,somtimes.It's like 2.3.4 Corruption of data read from the FMC. in <Errata sheet - STM32F42xx and STM32F43xx - STM32F427/437 and STM32F429/439 line limitati...

cxiao.6 by Associate II
  • 624 Views
  • 4 replies
  • 0 kudos

printf function call causes hard fault

Hi all,I am working on a STM32F103VEtx MCU. In my firmware I have redirected the printf function to a UART for debugging purposes. When I start running the code, the printf function causes the hard fault handler to hit. Please see the call stack att...

0690X00000DXN5RQAX.png

Effect of timer CCR not in range 0<CCR<ARR

DMA requests are still generated if the CCR is outside the auto-reload rangeThe DMA request is is generated when CNT reaches 0 rather than being disabled.Processor is a STM32H750is this a bug or a feature - it should be documented anyway

pbayton9 by Associate II
  • 364 Views
  • 2 replies
  • 0 kudos

Please order with newest first as default!

Hello,https://www.st.com/en/microcontrollers-microprocessors.html#resourcestarts with some unknow order. Clicking on the "Latest update" results in the oldest on top. Only with a second click, the newest entries git first. These resources are mostly ...

[TIM] how to read current TIxF state

I want to know the current level of the channel-input filter's output, marked as TIxF on the diagrams and in narrative.I know I could read the respective pin, but that's not the same - it misses the filtering aspect, i.e. a single read might inadvert...