/// <summary>
/// Analyzes the result of a ZIF-socket read.
/// </summary>
/// <param name="results">The array of results.</param>
/// <param name="eprom">The eprom.</param>
/// <param name="address">The address.</param>
/// <param name="result">
/// If <see cref="ReadSoundness.SeemsToBeAOkay"/> is returned,
/// this result can be trusted.
/// </param>
/// <returns>The result of the analyzis.</returns>
public static ReadSoundness AnalyzeEpromReadSoundness(
ZIFSocket[] results,
Eprom eprom,
int address,
out ZIFSocket result)
{
result = null;
var refLenght = results.Length;
var revResults = results.Reverse().ToArray();
var withCorrectAddresses = revResults.TakeWhile(x => eprom.GetAddress(x) == address).ToArray();
if (withCorrectAddresses.Length == 0)
{
return(ReadSoundness.TryRewrite);
}
if (withCorrectAddresses.Length != refLenght)
{
return(ReadSoundness.TryReread);
}
var refData = eprom.GetData(revResults[0]);
var withRefData = revResults.TakeWhile(x => eprom.GetData(x).SequenceEqual(refData)).ToArray();
if (withRefData.Length != refLenght)
{
return(ReadSoundness.TryReread);
}
result = revResults[0];
return(ReadSoundness.SeemsToBeAOkay);
}
/// <summary>
/// NOT WORKING YET!
/// </summary>
/// <param name="eprom"></param>
/// <param name="bytes"></param>
public void WriteEpromFast(Eprom eprom, IList <byte> bytes)
{
if (eprom.VppPins.Any(p => eprom.OutputEnable.Any(q => p.Number == q.Number)))
{
throw new U2PaException("Fast Programming Algoritm can't by used for this EPROM (yet)");
}
var totalNumberOfAdresses = eprom.AddressPins.Length == 0 ? 0 : 1 << eprom.AddressPins.Length;
var translator = eprom.GetPinTranslator(ZIFType);
{
var zif = new ZIFSocket(ZIFType);
zif.SetAll(true);
zif.Disable(eprom.Program, translator.ToZIF);
WriteZIF(zif, "Apply 1 to all pins");
SetVccLevel(eprom.VccLevel);
SetVppLevel(eprom.VppLevel);
ApplyGnd(translator.ToZIF, eprom.GndPins);
ApplyVcc(translator.ToZIF, eprom.VccPins);
ApplyVpp(translator.ToZIF, eprom.VppPins);
}
using (var progress = new ProgressBar(Shouter, totalNumberOfAdresses))
{
progress.Init();
foreach (var address in Enumerable.Range(0, totalNumberOfAdresses))
{
var pulse = 1;
while (pulse <= 32)
{
// Writing
var writerZif = new ZIFSocket(40);
writerZif.SetAll(true);
writerZif.Disable(eprom.GndPins, translator.ToZIF);
writerZif.Enable(eprom.Constants, translator.ToZIF);
writerZif.Disable(eprom.ChipEnable, translator.ToZIF);
writerZif.Disable(eprom.OutputEnable, translator.ToZIF);
writerZif.Disable(eprom.Program, translator.ToZIF);
eprom.SetAddress(writerZif, address);
var data = eprom.DataPins.Length > 8
? new[] { bytes[2 * address], bytes[2 * address + 1] }
: new[] { bytes[address] };
eprom.SetData(writerZif, data);
WriteZIF(writerZif, "Write address & d ata to ZIF");
writerZif.Enable(eprom.ChipEnable, translator.ToZIF);
writerZif.Enable(eprom.Program, translator.ToZIF);
WriteZIF(writerZif, "Start pulse E");
writerZif.Disable(eprom.ChipEnable, translator.ToZIF);
writerZif.Disable(eprom.Program, translator.ToZIF);
BulkDevice.Delay(pulse);
WriteZIF(writerZif, "End pulse E");
// Reading
var addressZif = new ZIFSocket(40);
addressZif.SetAll(true);
addressZif.Disable(eprom.GndPins, translator.ToZIF);
addressZif.Enable(eprom.Constants, translator.ToZIF);
addressZif.Enable(eprom.ChipEnable, translator.ToZIF);
addressZif.Enable(eprom.OutputEnable, translator.ToZIF);
addressZif.Disable(eprom.Program, translator.ToZIF);
eprom.SetAddress(addressZif, address);
WriteZIF(addressZif, "Write address");
var dataZifs = ReadZIF("Read data");
ZIFSocket resultZif;
if (Tools.AnalyzeEpromReadSoundness(dataZifs, eprom, address, out resultZif) == ReadSoundness.SeemsToBeAOkay)
{
if (eprom.GetData(resultZif).SequenceEqual(data))
{
// Data validates; now we overprogram
writerZif.Enable(eprom.ChipEnable, translator.ToZIF);
writerZif.Enable(eprom.Program, translator.ToZIF);
WriteZIF(writerZif, "Overprogram");
BulkDevice.Delay(3 * pulse);
writerZif.Disable(eprom.ChipEnable, translator.ToZIF);
writerZif.Disable(eprom.Program, translator.ToZIF);
WriteZIF(writerZif, "End pulse E");
break;
}
else
{
Console.WriteLine("Pulse: {0}", pulse);
Console.WriteLine("Address: {0}", address.ToString("X4"));
Console.WriteLine(eprom.GetData(writerZif).First());
Console.WriteLine(eprom.GetData(resultZif).First());
}
}
pulse *= 2;
}
if (pulse > 32)
{
progress.Shout("Address {0} doesn't validate! }};-(", address.ToString("X4"));
}
progress.Progress();
}
}
}
/// <summary>
/// Reads an EPROM.
/// </summary>
/// <param name="eprom">The EPROM type.</param>
/// <param name="progressBar">The progress bar.</param>
/// <param name="bytes">The list that accumulates the read bytes.</param>
/// <param name="fromAddress">Start reading this address.</param>
/// <param name="totalNumberOfAdresses">The total number of adesses.</param>
/// <returns>The next adress to be read.</returns>
public int ReadEprom(
Eprom eprom,
ProgressBar progressBar,
IList <byte> bytes,
int fromAddress,
int totalNumberOfAdresses)
{
const int rewriteCount = 5;
const int rereadCount = 5;
Shouter.ShoutLine(2, "Reading EPROM{0}", eprom.Type);
SetVccLevel(eprom.VccLevel);
var translator = eprom.GetPinTranslator(ZIFType);
ApplyVcc(translator.ToZIF, eprom.VccPins);
ApplyGnd(translator.ToZIF, eprom.GndPins);
PullUpsEnable(true);
var zif = new ZIFSocket(ZIFType);
var returnAddress = fromAddress;
Shouter.ShoutLine(2, "Now reading bytes...");
progressBar.Init();
foreach (var address in Enumerable.Range(fromAddress, totalNumberOfAdresses - fromAddress))
{
zif.SetAll(true);
zif.Disable(eprom.GndPins, translator.ToZIF);
zif.Enable(eprom.Constants, translator.ToZIF);
zif.Enable(eprom.ChipEnable, translator.ToZIF);
zif.Enable(eprom.OutputEnable, translator.ToZIF);
eprom.SetAddress(zif, returnAddress = address);
ZIFSocket resultZIF = null;
var result = ReadSoundness.TryRewrite;
for (var i = 0; i < rewriteCount; i++)
{
if (result == ReadSoundness.SeemsToBeAOkay)
{
break;
}
if (result == ReadSoundness.TryRewrite)
{
if (i > 0)
{
progressBar.Shout("A: {0}; WS: {1}ms", address.ToString("X4"), 100 * i);
}
WriteZIF(zif, String.Format("A: {0}", address.ToString("X4")));
if (i > 0)
{
Thread.Sleep(100 * i);
}
result = ReadSoundness.TryReread;
}
for (var j = 0; j < rereadCount; j++)
{
if (result != ReadSoundness.TryReread)
{
break;
}
if (j > 0)
{
progressBar.Shout("A: {0}; WS: {1}ms; RS: {2}ms", address.ToString("X4"), 100 * i, 100 * (j * i));
Thread.Sleep(100 * (j * i));
}
var readZifs = ReadZIF(String.Format("for address {0}", address.ToString("X4")));
result = Tools.AnalyzeEpromReadSoundness(readZifs, eprom, address, out resultZIF);
if (j == rereadCount - 1)
{
result = ReadSoundness.TryRewrite;
}
if (result == ReadSoundness.SeemsToBeAOkay && j > 0)
{
progressBar.Shout("Address: {0} read }};-P", address.ToString("X4"));
}
}
}
if (result != ReadSoundness.SeemsToBeAOkay)
{
return(returnAddress);
}
foreach (var b in eprom.GetData(resultZIF))
{
bytes.Add(b);
}
progressBar.Progress();
}
return(returnAddress + 1);
}