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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Also, I heard "Pull-up resistors are not require because STM32F already have one." is that true? Please help me about it. I will be really appriciated.

 Hi everyone, I am confuse about I2C pull-up resistors. I use 4 I2C sensors. I am not sure is it true that pull-up resistors count. I use every sensors for pull-up resistors. If I use just one I2C port (I mean one port for all sensors) is it enough? 

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AElma.1 by Associate II
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STM32L073RZT6 hardly booting the firmware

Hello ST Community,I have a PCB designed according to the attached schematic.Recently, I have been struggling with the following awkward issues:1) The flashed firmware (via UART) doest not always start (2/10 attempts lead to successful code execution...

VMeto.1 by Associate II
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  • 6 replies
  • 0 kudos

Short circuit on STM32H750

Hello!It's been a while since I'm working with STM32H7 MCUs and now, some of the products using it are returning from my customers, not working at all. Analyzing the board, I get a short circuit between 3V3 and GND and after removing the MCU, the sho...

Peaga by Senior
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  • 10 replies
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MB1440 circuit diagram

Hi All,Does anyone have the circuit diagram (schematic) for this board?Basically (and I have posted about this before, without any conclusion) I have several boards which work perfectly (sw download and SWD debug) via the big 20-way CN2, but are unre...

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PHolt.1 by Senior III
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  • 11 replies
  • 1 kudos

ST-Link/V2-ISOL "Target detection failed"

I'm using an ST-Link/V2-ISOL and installed the drivers (stsw-link009_v2.0.2) and ST-Link utility but I keep getting the "Target, detection failed" error in the Utility. Same result in the STM32 Cube Programmer. How can I fix this issue? I am using 64...

mdbayaa by Associate II
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  • 5 replies
  • 0 kudos