1 // 2 // Copyright (c) 2010-2024 Antmicro 3 // 4 // This file is licensed under the MIT License. 5 // Full license text is available in 'licenses/MIT.txt'. 6 // 7 using System.Collections.Generic; 8 using Antmicro.Renode.Core; 9 using Antmicro.Renode.Logging; 10 11 namespace Antmicro.Renode.Peripherals.Timers 12 { 13 public class PulseGenerator : IPeripheral, INumberedGPIOOutput 14 { PulseGenerator(IMachine machine, long frequency, ulong onTicks, ulong offTicks, bool startState = false)15 public PulseGenerator(IMachine machine, long frequency, ulong onTicks, ulong offTicks, bool startState = false) 16 { 17 this.startState = startState; 18 this.onTicks = onTicks; 19 this.offTicks = offTicks; 20 Connections = new Dictionary<int, IGPIO> { [0] = Output }; 21 timer = new LimitTimer(machine.ClockSource, frequency, this, nameof(timer), enabled: true, eventEnabled: true, autoUpdate: true); 22 timer.LimitReached += () => 23 { 24 timer.Limit = state ? offTicks : onTicks; 25 state = !state; 26 Output.Set(state); 27 this.DebugLog("Output set to {0}", state); 28 }; 29 Reset(); 30 } 31 Reset()32 public void Reset() 33 { 34 timer.Limit = !startState ? offTicks : onTicks; 35 state = startState; 36 Output.Set(state); 37 } 38 39 public GPIO Output { get; } = new GPIO(); 40 41 public IReadOnlyDictionary<int, IGPIO> Connections { get; } 42 43 public bool Enabled 44 { 45 get { return timer.Enabled; } 46 set { timer.Enabled = value; } 47 } 48 49 public long Frequency 50 { 51 get { return timer.Frequency; } 52 set { timer.Frequency = value; } 53 } 54 55 private bool state; 56 57 private readonly bool startState; 58 private readonly ulong onTicks; 59 private readonly ulong offTicks; 60 private readonly LimitTimer timer; 61 } 62 } 63
