STM32 MCUs Products

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Forum Posts

Reading clock input on OSC_IN

Hi,  I have an stm32g473 which use the clock of another system as external clock on PF0 / OSC_IN. This clock is them multiplied by 74 through the PLL. I need to synchronize my code with the external clock (i.e. wait for it to rise).  What is the simp...

treguy by Associate II
  • 295 Views
  • 5 replies
  • 1 kudos

Resolved! STM32N6 possible to change NCS1 to NCS2 via OTP

I was wondering if there is any possibility to change the NCS from NCS1_port2 to NCS2_port2 using the OTP registers on the STM32N6.I checked the registers but couldn’t find any option to adjust this. Maybe its not possible. Just to confirm my underst...

zimmeri by Associate II
  • 191 Views
  • 1 replies
  • 2 kudos

Resolved! STM32F401 as I2C Slave Mode? Speed?

 Hello Forum,I want to use a Nucleo 64 STM32F401 Board to test I2C connection with an unknown master (reverse engineering).The Bus consits of 1 Master (unknown Controller) an 1 Slave (My STM32F40). The Master sends out a Read Request at Addr. 5 and t...

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LGrüb.1 by Associate III
  • 621 Views
  • 8 replies
  • 0 kudos

Resolved! Unable to connect debugger/programmer.

Hello,We programmed our STM32L011 microcontroller with firmware that enters STOP mode and waits for an interrupt.However, we accidentally disabled the interrupt on the PA4 line. As a result, the device now immediately enters STOP mode, and we are una...

LMehm by Associate III
  • 442 Views
  • 10 replies
  • 1 kudos

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
  • 451 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
  • 365 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...

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