STM32 MCUs Products

Resolved! STM32U5 extended calibration procedure in RM0456 Rev 5 page 1269 is buggy

Hello,I was trying to implement extended calibration for ADC1 on my STM32U575 according to RM0456 Rev 5. I have a revision ID 0x3001 chip which should support extended calibration. The chip would hang very badly (can no longer connect with debug pr...

The issue of clock configuration for STM32F446RCT6

Why is it that when I set the clock frequency of the STM32 to a high frequency (180 MHz), the code will crash, but when I set it to a low frequency (72 MHz), the code can run normally?

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–...

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 ...

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...

Glitch sur CS avec SPI 9 bits sur STM32

Bonjour à tous,Je rencontre un comportement anormal lors de tests SPI 9 bits sur un STM32, observé avec un logic analyzer. Le problème se produit uniquement lorsque la ligne MOSI est physiquement connectée à l’esclave.Observations ::keycap_1: MOSI no...

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...

NUCLEO-U083RC - LPUART2 wake-up from Stop2 fails after power cycling

Hello all,We are testing LPUART wake-up from Stop 2 mode using the STM32CubeU0 LL example:STM32Cube_FW_U0_V1.2.0/Projects/NUCLEOU083RC/Examples_LL/LPUART/LPUART_WakeUpFromStop2_InitWe made a minimal modification to the example:Replaced LPUART1 with L...