more context
Signed-off-by: Sean Cross <sean@xobs.io>
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index.html
@ -217,10 +217,11 @@
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</section>
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<section data-transition="fade-in slide-out">
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<h2>What is an Emulator?</h2>
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<img src="media/bbs-example.png">
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<img src="media/vt100-MA-4352.png">
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</section>
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<section>
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<h2>Emulation Depends on your Goals!</h2>
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<p class="fragment">Emulation is a lie</p>
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</section>
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<!-- <section>
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<h2>Renode Is Many of These</h2>
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@ -233,11 +234,7 @@
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</section>
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<section>
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<section data-transition="fade-out">
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<h2>What is a Computer?</h2>
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<img class="fragment" src="media/bluenrg-block-diagram.png">
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</section>
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<section data-transition="fade">
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<section data-transition="slide-in fade-out">
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<h2>What is a Computer?</h2>
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<ul>
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<li>A system of devices</li>
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@ -292,10 +289,11 @@
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IRQ -> cpu@0
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cpu: CPU.CortexM @ sysbus
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nvic: nvic
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cpuType: "cortex-m0+"
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PerformanceInMips: 24
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nvic: nvic
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</code></pre>
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bluenrg-1.repl
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</section>
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</section>
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@ -412,10 +410,11 @@
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cpuType: "cortex-m0+"
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PerformanceInMips: 24
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</code></pre>
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bluenrg-1.repl
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</section>
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<section>
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<h2>Setting up Renode</h2>
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<pre data-id="code-animation"><code data-trim>
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<pre data-id="code-animation"><code data-trim data-line-numbers="|1|2|3-5|6|">
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machine LoadPlatformDescription @bluenrg-1.repl
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sysbus LoadBinary @BLE_Chat_Server.bin 0x10040000
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cpu VectorTableOffset 0x10040000
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@ -464,151 +463,96 @@
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<h2>Modify an Existing Block</h2>
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</section>
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<section>
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<h2>Example Serial Port: LiteX UART</h2>
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<pre class="code-animation"><code class="cs" data-trim data-line-numbers="|132-140|118-126|125|20-33">
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<h2>Example Serial Port: AxiUartLite</h2>
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<pre class="code-animation"><code class="cs" data-trim data-line-numbers="|80-83|55-61|35-45|39-45">
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//
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// Copyright (c) 2010-2018 Antmicro
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//
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// This file is licensed under the MIT License.
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// Full license text is available in 'licenses/MIT.txt'.
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//
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using System.Collections.Generic;
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using System;
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using Antmicro.Renode.Peripherals.Bus;
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using Antmicro.Renode.Core.Structure.Registers;
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using System.Collections.Generic;
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using Antmicro.Renode.Core;
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using Antmicro.Renode.Logging;
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using Antmicro.Renode.Peripherals.Miscellaneous;
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using Antmicro.Migrant;
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namespace Antmicro.Renode.Peripherals.UART
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{
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public class LiteX_UART : UARTBase, IDoubleWordPeripheral, IBytePeripheral, IKnownSize
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[AllowedTranslations(AllowedTranslation.ByteToDoubleWord)]
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public class AxiUartLite : IDoubleWordPeripheral, IUART, IKnownSize
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{
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public LiteX_UART(Machine machine) : base(machine)
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public AxiUartLite()
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{
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IRQ = new GPIO();
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var registersMap = new Dictionary<long, DoubleWordRegister>
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{
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{(long)Registers.RxTx, new DoubleWordRegister(this)
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.WithValueField(0, 8,
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writeCallback: (_, value) =>
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this.TransmitCharacter((byte)value),
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valueProviderCallback: _ => {
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if(!TryGetCharacter(out var character))
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{
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this.Log(LogLevel.Warning, "Empty Rx FIFO.");
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readFifo = new Queue<uint>();
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}
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return character;
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})
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},
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{(long)Registers.TxFull, new DoubleWordRegister(this)
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.WithFlag(0, FieldMode.Read) //tx is never full
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},
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{(long)Registers.RxEmpty, new DoubleWordRegister(this)
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.WithFlag(0, FieldMode.Read, valueProviderCallback: _ => Count == 0)
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},
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{(long)Registers.EventPending, new DoubleWordRegister(this)
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// `txEventPending` implements `WriteOneToClear` semantics to avoid fake warnings
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// `txEventPending` is generated on the falling edge of TxFull; in our case it means never
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.WithFlag(0, FieldMode.Read | FieldMode.WriteOneToClear, valueProviderCallback: _ => false, name: "txEventPending")
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.WithFlag(1, out rxEventPending, FieldMode.Read | FieldMode.WriteOneToClear, name: "rxEventPending")
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.WithWriteCallback((_, __) => UpdateInterrupts())
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},
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{(long)Registers.EventEnable, new DoubleWordRegister(this)
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.WithFlag(0, name: "txEventEnabled")
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.WithFlag(1, out rxEventEnabled)
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.WithWriteCallback((_, __) => UpdateInterrupts())
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},
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};
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registers = new DoubleWordRegisterCollection(this, registersMap);
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public void WriteChar(byte value)
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{
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readFifo.Enqueue(value);
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}
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public void Reset()
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{
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readFifo.Clear();
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}
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public uint ReadDoubleWord(long offset)
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{
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return registers.Read(offset);
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}
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public byte ReadByte(long offset)
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switch((Register)offset)
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{
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if(offset % 4 != 0)
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case Register.RxFIFO:
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if(readFifo.Count == 0)
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{
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// in the current configuration, only the lowest byte
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// contains a meaningful data
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this.Log(LogLevel.Warning, "Trying to read from empty fifo.");
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return 0;
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}
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return (byte)ReadDoubleWord(offset);
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return readFifo.Dequeue();
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case Register.Status:
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// Tx FIFO Empty | Rx FIFO Valid Data
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return (1u << 2) | (readFifo.Count == 0 ? 0 : 1u);
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default:
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this.LogUnhandledRead(offset);
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return 0;
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}
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public override void Reset()
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{
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base.Reset();
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registers.Reset();
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UpdateInterrupts();
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}
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public void WriteDoubleWord(long offset, uint value)
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{
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registers.Write(offset, value);
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switch((Register)offset)
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{
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case Register.TxFIFO:
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CharReceived?.Invoke((byte)value);
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break;
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default:
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this.LogUnhandledWrite(offset, value);
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break;
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}
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}
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public void WriteByte(long offset, byte value)
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[field: Transient]
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public event Action<byte> CharReceived;
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public long Size { get { return 0x10; } }
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public Bits StopBits { get { return Bits.One; } }
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public Parity ParityBit { get { return Parity.None; } }
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public uint BaudRate { get { return 0; } }
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private readonly Queue<uint> readFifo;
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private enum Register
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{
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if(offset % 4 != 0)
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{
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// in the current configuration, only the lowest byte
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// contains a meaningful data
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return;
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}
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WriteDoubleWord(offset, value);
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}
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public long Size => 0x100;
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public GPIO IRQ { get; private set; }
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public override Bits StopBits => Bits.One;
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public override Parity ParityBit => Parity.None;
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public override uint BaudRate => 115200;
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protected override void CharWritten()
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{
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UpdateInterrupts();
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}
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protected override void QueueEmptied()
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{
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UpdateInterrupts();
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}
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private void UpdateInterrupts()
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{
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// rxEventPending is latched
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rxEventPending.Value = (Count != 0);
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// tx fifo is never full, so `txEventPending` is always false
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var eventPending = (rxEventEnabled.Value && rxEventPending.Value);
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IRQ.Set(eventPending);
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}
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private IFlagRegisterField rxEventEnabled;
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private IFlagRegisterField rxEventPending;
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private readonly DoubleWordRegisterCollection registers;
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private enum Registers : long
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{
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RxTx = 0x0,
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TxFull = 0x04,
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RxEmpty = 0x08,
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EventStatus = 0x0c,
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EventPending = 0x10,
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EventEnable = 0x14,
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RxFIFO = 0x0,
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TxFIFO = 0x4,
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Status = 0x8,
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Control = 0xC
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}
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}
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}
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</code></pre>
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AxiUartLite.cs
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</section>
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<section>
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<h2>Steps to Set Up a Serial Port</h2>
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@ -629,10 +573,12 @@
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<section>
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<h2>Peripheral Rapid Development</h2>
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<img src="media/hardware-20191117-cropped.jpg">
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Betrusted Prototype
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</section>
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<section>
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<h2>Peripheral Rapid Development</h2>
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<video class="r-stretch" data-autoplay src="media/Renode-20191117-trimmed.m4v"></video>
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<p>Hackaday Supercon 2019</p>
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</section>
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<section data-transition="fade-out">
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<h2>Advantages of Emulation</h2>
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@ -642,6 +588,11 @@
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<h2>Advantages of Emulation</h2>
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<img src="media/renode-xous-double-uart-tiled.png">
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</section>
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<section>
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<h2>Getting Hardware to Users</h2>
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<img src="media/betrusted-engine-block-diagram.png" class="r-stretch">
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<p>Betrusted ENGINE</p>
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</section>
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<section>
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<h2>Getting Hardware to Users</h2>
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<img src="media/betrusted-wycheproof-patch.png">
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@ -650,6 +601,9 @@
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<h2>Getting Hardware to Users</h2>
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<img src="media/betrusted-wycheproof-patch-fix.png">
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</section>
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<section>
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<h2>Emulation brings more eyes to the project</h2>
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</section>
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</section>
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<!--
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<section>
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<section>
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<section>
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<h2>Robot Framework: Running Tests in CI</h2>
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<pre class="code-animation"><code class="robot" data-trim data-line-numbers="|1-6|8-18|20-26|28-40">
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<pre class="code-animation"><code class="robot" data-trim data-line-numbers="|1-6|8-18|20-26|28-40|39-40">
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*** Settings ***
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Suite Setup Setup
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Suite Teardown Teardown
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Wait For Line On Uart
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... x 9.997213 , y 4.997410 , z -4.999803
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</code></pre>
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<p>LIS2DS12.robot</p>
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</section>
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</section>
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<section>
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</section>
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<section>
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<h2>SVD: Standard Chip Documentation</h2>
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<pre class="code-animation"><code class="xml" data-trim data-line-numbers="|3-9|25-87|27-31|39-57|43|46-47|48-56">
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<pre class="code-animation"><code class="xml" data-trim data-line-numbers="|3-9|25-87|27-31|31|39-57|41|43|46-47|48-56">
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<?xml version='1.0' encoding='utf-8'?>
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<device xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" schemaVersion="1.1" xsi:noNamespaceSchemaLocation="CMSIS-SVD_Schema_1_1_draft.xsd">
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<vendor>STMicroelectronics</vendor>
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</peripherals>
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</device>
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</code></pre>
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<p>BlueNRG2.svd</p>
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</section>
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<section>
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<h2>SVD: Using with Renode</h2>
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<img src="media/renode-multi-system.png">
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</section>
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</section>
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<section>
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<h2>Other Features</h2>
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<ul>
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<li>Loading peripherals at runtime</li>
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<li>Adding custom instructions to Risc-V</li>
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<li>Python hooks for memory access</li>
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<li>Networking</li>
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</ul>
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</section>
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<section>
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<h2>Renode is Free Software</h2>
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Give it a try!
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media/betrusted-engine-block-diagram.png
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