STM32 MCUs Products

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Resolved! UART Tx low state level

Hello, I am trying to make communicate a NUCLEO STM3F030 with a STM32F030K6T6 mounted on a custom pcb.Tx sends from NUCLEO is ok when i check it on an oscilloscope but when i connect the power supply of my pcb on the NUCLEO (or even on an external p...

JGreg.2 by Associate III
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  • 7 replies
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Downloading last version of the STM32F769I-EVAL Board

Hello,I have a  STM32F769I-EVAL board, where the Firm.Ver is V1.2.0In the package I download, I only have the 1.0.0 Hex version file.Before doing any test and erase the current version, to be able to load back the 1.2 version, I would like to downloa...

ANauz.1 by Senior II
  • 460 Views
  • 2 replies
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B-L475E-IOT01A BlueNRG-MS / SPBTLE-RF Framing Error

I am having issues interfacing with the B-L475E-IOT01A's on-board SPBTLE-RF bluetooth chip. I am able to send header packets inquiring about the the bluetooth chip's write and read buffers. I have confirmed that I am doing this correctly, because I g...

WWale.1 by Associate
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  • 1 replies
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Resolved! RTC Alarm not working more than once

Hello all,I'm trying to prototype a shutdown mode with a RTC alarm.I'm flashing the LED 5 times, then I set-up the RTC calendar, clock and alarm A (5 seconds after set-up clock). Then I go to shutdown mode. Everything works when I program my system (...

JGarc.5 by Associate III
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  • 2 replies
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STM32L476RG Compilation Issue: Missing Headers

Hi, I've been trying to compile a program to talk to a sensor over UART for my STM32L476RG board. I'm having an issue with that I've tidied up the library that is needed to talk to the sensor, but I'm getting errors that I'm missing header files such...

0693W000001pkOeQAI.jpg
NStep.1 by Associate
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  • 2 replies
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STM32L010 low power mode

   In an attempt to reduce power for a critical battery powered system, I tried, without success, to make the chip run in the power range 3 (1.2V). Here is what I do:   At power up, with the chip running from the MSI clock divided by 2 (1Mhz), whatev...

adaniel by Associate III
  • 464 Views
  • 0 replies
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Wake STM32L4xx from SHUTDOWN using RTC Alarm?

I'm currently using the STM32L4R9I-EVAL board and trying to prototype an application where the microcontroller will need to be in lowest power (i.e. SHUTDOWN) mode for several days or weeks and then wake up to perform an action. I can get the the mi...

Interpretation of SPI communication error

Hello,Still struggling with my SPI setup.See https://community.st.com/s/feed/0D53W000006r3jX for details on SPI and GPIO settings.On the exact same setup I have sometimes a correct communication and trace is :SCK in yellow, MISO in blue. I send bytes...

0693W000001pn8oQAA.png 0693W000001pn98QAA.png
Gpeti by Senior II
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  • 4 replies
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