STM32 MCUs Boards and hardware tools

Ask questions and find answers on STM32 hardware set-ups, including schematic-related challenges, debugging probes, power configurations, and more.

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STM32 chip detection issue while flashing

Hi STM Team,We are trying to flash code to STM32H745 through SWD interface. However, after multiple flashing cycles to STM, we unable to detect device in 2 or 3 boards.The below are list of the observations of that scenario.Once we give 3.3V supply t...

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KGand.1 by Associate
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For a freshly soldered STM32F4 chip on a consumer product, is the chip defaulted to allow USB DFU when usb cable is plugged in .

I can't imagine for pre-production to have to tie boot to vcc or the like as it is described on the discovery boards. Would be complicated to do this and will have to introduce additonal circuitry like a switch or rc circuit. If so can someone provid...

Baze by Associate II
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Resolved! Pinout diagram for STLink V3 mini to the STM32H7 Board. STLinkV3 has Virtual com port(UART) and SWD pins. with that I want to know how it will connect to the STM32 board?

I am designing my own board using STM32H7 controller. I am trying to flash the code using STLink V3 mini cable(SWD) and STLink V3 cable is having Virtual com port(UART) also for communicating to the board to the Host PC. How this connection will look...

VRapa by Associate II
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The mcu stops working when i disconnet jtag

Hi everyone. I wrote a program in assembly for stm32f407 and loaded it to mcu using uvision and stlink. The mcu works properly in debug mode( at debug state the reset pin has high voltage) ​but when i disconnect the usb, mcu stops (and reset pin volt...

ASale.1 by Associate
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ST-LINK/V2 issue

HiI have bought two different ST-LINK/V2 devices: one has mark "EN Version" and another has "CN Version". Works only "Cn Version":Another doesnt work.Settings for connection (other settings cant make a connect to device). Vdd on MCU i measure indepen...

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AFeo by Associate
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