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LPUART DMA on STM32L0

Hello everyone,I'm working on a project where i use 2 STM32 MCU which communicate with each other with LPUART and DMA.My STM32 references : STM32L072CBT6 and STM32L010C6T6I have a problem with this communication with LPUART and DMA. I see that error ...

MLam by Associate III
  • 3945 Views
  • 2 replies
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Resolved! SDMMC does not work after power cycle

Hi,I am using STM32H747. I have successfully write&read micro sd card over SDMMC2 peripheral while debugging. But after debugging, when I power cycle or reset the board, I am not able to use sd card. I see FatFS open file failing. The board is arduin...

serhat1 by Associate
  • 3175 Views
  • 1 replies
  • 0 kudos

How to use printf/scanf in both cores using SWO?

I have the M7 core running and printing debug messages to the IAR Workbench terminal, and also have the M4 doing something similar. My probem is that I get a hard fault in the M4 core if the its printtf messages are included in the build. If I don...

Resolved! PWM Dim

I am trying a PWM output with jumper connectors.when mains fail(input supply)PWM is on indicated by a lamp and OFF when there is a supply .in between if the supply is OFF and Lamp is in ON there is a jumper connect to PA6 (input)of stm32c011f6p6.if t...

SRAM.11 by Associate III
  • 3804 Views
  • 3 replies
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STM32L031 Programming and debugging using Tag Connect

Hello. I am currently working with the STM32L031 Nucleo board:https://www.st.com/resource/en/user_manual/um1956-stm32-nucleo32-boards-mb1180-stmicroelectronics.pdf The board has integrated ST-LINK so it is quite easy and convenient to flash the devic...

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LPetr.1 by Senior II
  • 4487 Views
  • 5 replies
  • 0 kudos

Does powering shorted board hurt stm32?

firstly i am new to here, dont know much rules about posting. 1 minute ago i saw post about shorted power dont kills mcu but can it damage stm32?so i shorted my 3d printer board(stm32g0b1ret6 probably) via 3.3v and gnd(general probably). i checked by...

Hoorow by Associate II
  • 5110 Views
  • 10 replies
  • 3 kudos

Unstable voltage supply to STM32U

Hello all, I have designed a board for sensing purposes and I am using the following ST components: STM32U575ZIT6Q. I am supplying this component with 3V3, which I get form a 5V/3V3 LDO. Between the output of the LDO and the supplying rail to the STM...

MicrosoftTeams-image (5).png MicrosoftTeams-image (6).png STM32_Schematic.JPG
KKots.1 by Associate II
  • 2833 Views
  • 7 replies
  • 2 kudos

Resolved! STM32F103 input timer interrupts...

I have a test project that sets up TIM3.3 to count microseconds between falling edges of the timer input.  The timer is started with a call to HAL_TIM_IC_Start_IT(&htim3, TIM_CHANNEL_3); to start timing the input.  Inside HAL_TIM_IC_CaptureCallback(*...

DBudd.1 by Associate II
  • 2601 Views
  • 5 replies
  • 1 kudos

Resolved! STM32L0 LPUART LSE Error

Hello everyone,I'm working on a project with a STM32L072CBT6.I'm using LPUART (PB10 / PB11) at 9600 bauds to communicate with an other board. For low power consumption, i'm using LSE for my LPUART.When i check my bauds rate on my oscilloscope, i get ...

MLam_0-1694707277000.png MLam_1-1694707448466.png MLam_2-1694707527865.png MLam_3-1694707578320.png
MLam by Associate III
  • 2045 Views
  • 7 replies
  • 1 kudos