STM32 MCUs Products

Ask questions, find answers, and share insights on STM32 products and their technical features.

cancel
Showing results for 
Search instead for 
Did you mean: 

Forum Posts

High Frequency Input Processing

Hi,The input to the MCU is basically 1-bit (0/1 values), but it would be better if it could process multiple bits.The input is at 150MHz, and 10,000 data items are received at once. The MCU must store them in uint8_t data[10000]. When a 1-bit value i...

Resolved! option bytes programming

Hi,I want clarification on STM32 option byte programming.When we write new values to FLASH_OPTR and other option registers:Where are these FLASH option registers physically located?Are they inside the FLASH peripheral (0x4002xxxx region) and not in t...

Resolved! STM32G071 PORTD Pullups

I'm connecting a 12-Way rotary switch to an STM32G071 as shown:Board room is extremely limited, so I'm using the MCUs built in Pull Ups. However when I read the lowest four bits of PORTD->IDR (for switch positions 7,8,9 and 10) it reads 0xA when it s...

Screenshot 2026-02-24 114414.png Screenshot 2026-02-24 at 11.49.24.png
KMill by Senior II
  • 263 Views
  • 5 replies
  • 3 kudos

Resolved! STM32 dual core booting sequences

Hello ST Community,I read in the follow post question about boot sequences for STM32:STM32H7 dual core: How to start with a busy-waitin... - STMicroelectronics CommunitySo, in the post above, I see that is explain the first three Boot order of the Ta...

Table_8_RM0399.png

Resolved! Query about data coming out of STM32N6570-DK MCU

I am using ADC + DMA + USART1 + Timer in STM32 IDE in a setup consisting of:Motor → Sensors → MCU (STM32N6) → PCI am capturing the signal received at the serial port using NanoEdge AI. I have shared screenshots of:The actual current waveform observed...

AndrewNeil_0-1771330500890.jpeg AndrewNeil_1-1771330518452.jpeg

Resolved! ADC + GPDMA output values are incorrect

I am using STM32H563 and using seven pins to read data, all through ADC1 with GPDMA1 Channel0 -2 Words internal FIFO. I connected all seven pins to ground, expecting to get all zeros or values close to zero, but the readings seem to fluctuate randoml...

Hueiyi_0-1770884386090.png Hueiyi_1-1770884486376.png Hueiyi_2-1770884580706.png Hueiyi_3-1770884707319.png
Hueiyi by Associate II
  • 190 Views
  • 2 replies
  • 0 kudos

Resolved! N6 PLL: FRAC change on the fly as in H7 impossible ?

Heyho,the title says it...In RM0486, 14.6.5 PLL description, page 437 / 438 I find this:Using the PLLs in fractional modePLL off ... set FRAC ... PLL onCaution: Do not update DIVN and DIVNFRAC after the PLL has been enabled.On the other hand, there a...

LCE by Principal II
  • 192 Views
  • 2 replies
  • 0 kudos