STM32 MCUs Products

STM32 14-bit ADC: Extended vs. "normal" calibration procedure

Hello, rm0456 in chapter 33.4.8. talks about "Software procedure to calibrate the ADC" and "Extended calibration mode" on some products. It is not clear, if "Software procedure to calibrate the ADC" is enough for products with "Extended calibration m...

STM32L052K8U inputs randomly not working after a while

Hi all,In my project I use several IOs, I2C, SPI, UART, ADC, DAC and most of them work as expected.However, I have 2 inputs from push buttons (pushing the button would set them to 0 volt), set with pull-ups (not set as EXTI) that sometimes stop worki...

STM32N6 VENC Hardware Handshake with MJPEG encoding

The VENC peripheral on the N6 boasts a hardware handshake path with the DCMIPP peripheral, potentially allowing full compression of each frame to occur with very little active RAM. From what I can find, the DCMIPP capture starts, then the VENC is tol...

STM32N657 External RAM (S80KS5123GABHB020) Memory-Mapped Address Clarification

Hello ST Community Team, We are currently working with the STM32N657X0H3Q1 device and using an external DRAM – S80KS5123GABHB020 (512 Mbit) connected via the XSPI interface. We have successfully configured XSPI and external memory initialization (usi...

Resolved! Risk of leaving CN13 (User USB) connected without powering the Nucleo

In the UM2407 Rev 5 (Nucleo-H753ZI user manual) on page 29/54, section 7.6.6 there is a warning:USB Micro-AB connector (CN13) cannot power the Nucleo144 board. To avoid damaging the STM32H7, it is mandatory to power the Nucleo-144 before connecting a...

Resolved! STM32G0 internal temperature sensor wrong. simple offset vs full calibration?

Hello,we are seeing a systematic offset when using the internal temperature sensor of the STM32G031G8U6.Over the years we have tested ~50 SoCs (different production batches), and all devices show a very consistent temperature reading that is about 2–...

Resolved! CS Glitch with 9-Bit SPI on STM32

Hi everyone,I’m experiencing unexpected behavior while testing 9-bit SPI on an STM32, observed with a logic analyzer. The issue only occurs when the MOSI line is physically connected to the slave.Observations::keycap_1: MOSI not connectedCS and SCLK ...

STM32C011. Cant run sysclk from LSI.

Im trying to run SYSCLK from LSI on a STM32C011. But it appears as if the MCU is not running. I cant see anything in the datasheet that says the clock cant be used and it can be routed fine in the clock configurator. Am I missing something in the dat...