Power Management

There are multiple ways to put a system in different power modes to save on power consumption.

Endpoint currently only support complete shutdown.

Both Real Time Clock and one of the wakeup pins can be used to wakeup the system from shutdown.

note

Power shutdown and wake-up is currently exposed only through the .NET GHIElectronics.Endpoint.Native.Power API. A Python / C++ equivalent is planned; for now, use .NET from any of the three language workflows (or drive it from a short C# helper).

.NET

using GHIElectronics.Endpoint.Native;
using GHIElectronics.Endpoint.Devices.Rtc;

var rtc = new RtcController();
var dt = DateTime.Now;
rtc.Now = dt;
Console.WriteLine("rtc = " + rtc.Now);
Console.WriteLine("system = " + DateTime.Now);
Power.EnableWakeup(DateTime.Now.AddSeconds(30), WakeupPin.PA0);
Console.WriteLine("Wakeup = " + DateTime.Now.AddSeconds(30).ToString());
Power.Shutdown();

Python

# Power.Shutdown / Power.EnableWakeup are not yet exposed in the Python
# GHIElectronics.Endpoint.Core package. Use the .NET API, or invoke a
# short C# helper from Python until the Python binding ships.

C/C++

// Power::Shutdown / Power::EnableWakeup are not yet exposed in the C++
// endpoint headers. Use the .NET API, or invoke a short C# helper from
// C++ until the C++ binding ships.

tip

Shutdown is brings the system down completely. Any unsaved files will be lost.