Difference between revisions of "ETRA SOM/ETRA Hardware/Peripherals/Watchdog"

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! colspan="4" style="width:100%; text-align:left" ; border-bottom:solid 2px #ededed" |History
 
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=== Description  ===
 
=== Description  ===
  
The Watchdog interfaces available on ETRA SoM are based on STM32MP1 SoC.  
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The Watchdog interfaces available on ETRA SOM are based on STM32MP1 SoC.  
  
 
The Watchdog portssupports the following standards and features:
 
The Watchdog portssupports the following standards and features:

Latest revision as of 11:45, 8 January 2024

History
Issue Date Notes
2020/12/31 First Release



Peripheral Watchdog[edit | edit source]

Description[edit | edit source]

The Watchdog interfaces available on ETRA SOM are based on STM32MP1 SoC.

The Watchdog portssupports the following standards and features:

  • two independent watchdogs (IWDG1 and IWDG2) dedicated to MPU
    • 12-bit down-counter and 8-bit prescaler
    • dual voltage domain, thus enabling operation in low-power modes
    • independent 32 kHz internal RC clock that operate in Stop and Standby modes
  • one window watchdog (WWDG1) dedicated to the MCU
    • programmable free-running 7-bit downcounter
    • conditional reset
    • early wakeup interrupt
    • can be frozen in debug mode
  • the MPU can receive an interrupt if the WWDG1 generates a reset