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Hello,The target MCU is STM32L151ZETx (LQFP144), and the main clock frequency is 32 MHz.Normally, the system operates in Run mode, but I plan to use Sleep mode or Low Power Sleep mode when the supply current decreases.My question is: when entering Sl...
Target MCU: STM32L151ZETx (LQFP144)Main Clock Frequency: 32 MHz When the MCU is first powered on, it takes about 41 ms to reach the while(1) loop in the main() function, based on the code shown below. For my product requirements, I would like this st...
I tested the LSE CSS function on the Nucleo-L053, but I found that short-circuiting the crystal oscillator pins failed to trigger the CSS interrupt. The code configuration is as follows plz give a clue or the flow of LSECSSvoid SystemClock_Config(voi...
The Reference Manual for L4 series (RM0394) says on page 1007:"When the LPTIM is running with an asynchronous clock, reading the LPTIM_CNT register mayreturn unreliable values. So in this case it is necessary to perform two consecutive read accesses ...
I'm experiencing FDCAN Memory Access Failures on the STM32H503KBUX during CAN Rx. I am also experiencing intermittent CAN Rx message drops (every 1 in a 200), and I believe the two are related since no others errors are firing. I know the drops are h...
Hello,Is it possible that STM32f207ZGT6 purchased in 2025 from an official distributor have an old silicon revisionrev_id = 0x200f?
I am having a problem reading SPI data on an STM32F407 where it always returns 0x00. I actually have this working using HAL on the same hardware, however for legacy reasons I need to get this working with SPL. This application is just sending clock s...
According to some reference it is good to have ground polygon under IC 1. Is it okay to have ground polygon under IC? 2. Does it effects heating issue?3. I saw two hole behind the IC of nucleo 144 board. What that mean?
On my current board the STM32G030 is getting very hot. I have even tried a board with no connections to the processor and all pins set to analog. I have checked the power supply and it's 3.3V. The board runs OK but I am worried about the processor...
Hi all, I’m working on enabling USB High‑Speed (HS) communication on an STM32F446RE using an external USB3300 ULPI PHY, but I’m running into several issues and can’t get ULPI communication working. Current Issues: DIR pin stays high – it appears the ...
