Ask questions and find answers on STM32 hardware set-ups, including schematic-related challenges, debugging probes, power configurations, and more.
Hello,I made a project using a blue pill. It works when is powered through st-link (3,3V).When I power this board from two AA batteries (~3V), the board does nothing until I press the reset button.An STM32F103 should work from 2 to 3,6 V, according t...
Hi there, I am using STM32F103c8t6 blue pill. there is a problem: when I use ST-LINK programmer to download the code to it, the PC13 LED is turned ON, without being ON in the program! why is that? One assumption is that the board is driving too much ...
Hello everyone,I'm new to using STM32 boards and coding with STM32CubeIDE. I have a simple task: generating two PWM outputs and adjusting the phase difference between these two PWM signals at runtime.I'm using an STM32F407 board, and from what I've g...
Dear all, I am trying to make sense of the pin descriptions / pin-mapping of the STM32H7 Nucleo-144 boards, vs. the MCU STM32H723 which it is equiped with.User manual UM2407 (rev. 4) of the board reads:pin PA3 has function ADC12_INP15pin PC0 has func...
Hello, Testing 3.3V Octo-SPI PSRAM is fine on the STM32L4P5G-DK board. I'd like to test another 1.8V Octo-SPI PSRAM now. The solder bridge options SB17/SB18 for PSRAM and SB13/SB14 for MCU are modified for the purpose. However, a certain DQ bit is st...
Hello, I am using STM32L0 microcontroller in my device. I put my device in deep sleep and wakeup using the same button by sorting SYS_WAKEUP2 pin and nearby PC14 is used as an Input pin (pulled-up). The issue is when I disconnect & reconnect USB po...
I’m currently working on a project that involves I2C communication using the STM32H750B-DK but I’m having trouble identifying which I2C peripheral (I2C1, I2C2, etc.) is connected to the Arduino I2C pins (SDA/SCL) on the board.Unfortunately, I couldn...
Hi everyone, I’m currently struggling to understand the behavior of the power line on the Nucleo-H753ZI board. My goal:The Nucleo board should be programmable via CN1 (Micro USB, ST-Link connection to PC). When connected, this should provide both 3.3...
Hey everyone, I'm working with the STM32H747I-DISCO board and trying to get it into USB DFU mode to flash firmware using STM32CubeProgrammer. However, the board isn't being detected, and I couldn’t find clear instructions in the documentation about h...
Hello everyone!I've designed a PCB around the STM32H7B0 MCU (I've attached a screenshot of the relevant part of the schematic) for audio signal processing. I wanted to use the maximum clock frequency of 280MHz, but this requires the use of Power Reg...
