AN0018.2: Supply Voltage Monitoring
This application note will demonstrate how to use the EFR32 Series 2 EMU's Reset Management Unit to determine if a brownout reset has occurred and will also demonstrate the supply voltage monitoring functionality using EFR32xG21's ACMP,EFR32xG22's IADC and EFR32xG22's DCDC.
This application note includes the folllowing:
• This PDF document.
• Source files (zip).
• Example c-code.
• Multiple IDE projects.
KEY POINTS:
• Observe RMU to determine reset cause.
• Monitor power rails for low voltage conditions with ACMP for EFR32xG21.
• Monitor power rails for low voltage conditions with IADC for EFR32xG22.
• Monitor power rails for low voltage conditions with DCDC for EFR32xG22.
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