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Resolved! STM32L0 doesn't start on power cycle.

 Hello!We are using an STM32L0 microcontroller as a power switch.The device works correctly when the firmware is started from STM32CubeIDE using the Run command.However, if we switch the power supply off and then back on, the STM32L0 does not boot.We...

LMehm by Associate III
  • 781 Views
  • 7 replies
  • 3 kudos

Temporary disabling ETR's

Background: I am designing a high-speed imaging system for an industrial press. I am using an STM32 to synchronize a camera (TIM3) and two flashes (TIM4) based on an external hardware trigger.The Setup:Both timers are in One-Pulse Mode (OPM) and Comb...

AS_HAL by Associate II
  • 644 Views
  • 8 replies
  • 1 kudos

Resolved! Typo in STM32L412xxx Datasheet?

I'm looking at Rev 9 of the STM32L412xxx Datasheet, as linked on Digikey, and I'm having a hard time understanding the current consumption figures specified for the Low-power Run & Low-power Sleep modes on the MCU.  Per the table on pg.24 (shown belo...

Screenshot 2026-03-30 140737.png

Resolved! Spread Spectrum on STM32H5 series

I would like to enable spread spectrum on the STM32H573RIT6.We are currently running on 250Mhz and at that frequency we have big peak which is 15dB above the limit, that's why I would be able to enable the spread spectrum. I looked into the STM32H7 e...

SSI Slave on a STM32H743 via SPI

Hello,I must implement a SSI (Synchronous Serial Interface) to output a measured value. As SSI in principle is just a bitstream which is clocked out with the serial clock, I wanted to use a SPI in slave mode, as the clock comes from the SSI master.Th...

Ray91 by Associate II
  • 1174 Views
  • 10 replies
  • 2 kudos

Resolved! STM32H743IIK6: Some questions relating hardware design

Hi,During the design with the STM32H743IIK6 MCU few questions arise:(1)  While designing a PCB with the STM32H743IIK6 (UFBGA176+25 package) with VDD=3.3V or 2.8V, I am unable to locate the VCCLDO pin, which is expected to be connected to external cap...

ELI_HAIT by Associate II
  • 757 Views
  • 8 replies
  • 1 kudos

Resolved! STM32G431 USB dfu , CAN bus , PB8 and nSWBOOT0

The problem is that the transceiver will set the RX pin high at boot , this will put the G431 in boot mode and never start . The question is how to set and reset the nSWBOOT0 bit in the program . I mean , if I am right ::2) at setup (yes , Arduino) ,...

mwalt.3 by Associate III
  • 1033 Views
  • 9 replies
  • 1 kudos
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