private void RiseX24C01(int bit)
{
switch (mode)
{
case EpromMode.Addressing:
if (cbit < 7)
{
caddress &= ~(1 << cbit);
caddress |= bit << cbit++;
}
else if (cbit < 8)
{
cbit = 8;
if (bit != 0)
{
nextmode = EpromMode.Read;
cdata = data[caddress];
}
else
{
nextmode = EpromMode.Write;
}
}
break;
case EpromMode.Ack:
output = 0x00;
break;
case EpromMode.Read:
if (cbit < 8)
{
output = (cdata & 1 << cbit++) != 0 ? 0x10 : 0x00;
}
break;
case EpromMode.Write:
if (cbit < 8)
{
cdata &= ~(1 << cbit);
cdata |= bit << cbit++;
}
break;
case EpromMode.AckWait:
if (bit == 0)
{
nextmode = EpromMode.Idle;
}
break;
}
}
public void HardReset()
{
pscl = false;
psda = false;
mode = EpromMode.Idle;
nextmode = EpromMode.Idle;
cbit = 0;
caddress = 0;
cdata = 0;
isRead = false;
output = 0x10;
}
public void HardReset()
{
pscl = false;
psda = false;
mode = EpromMode.Idle;
nextmode = EpromMode.Idle;
cbit = 0;
caddress = 0;
cdata = 0;
isRead = false;
output = 0x10;
}
public void LoadState(System.IO.BinaryReader stream)
{
stream.Read(data, 0, data.Length);
mode = (EpromMode)stream.ReadInt32();
nextmode = (EpromMode)stream.ReadInt32();
psda = stream.ReadBoolean();
pscl = stream.ReadBoolean();
output = stream.ReadInt32();
cbit = stream.ReadInt32();
caddress = stream.ReadInt32();
cdata = stream.ReadInt32();
isRead = stream.ReadBoolean();
}
private void RiseX24C02(int bit)
{
switch (mode)
{
case EpromMode.Data:
if (cbit < 8)
{
cdata &= ~(1 << (7 - cbit));
cdata |= bit << (7 - cbit++);
}
break;
case EpromMode.Addressing:
if (cbit < 8)
{
caddress &= ~(1 << (7 - cbit));
caddress |= bit << (7 - cbit++);
}
break;
case EpromMode.Read:
if (cbit < 8)
{
output = (cdata & 1 << (7 - cbit++)) != 0 ? 0x10 : 0x00;
}
break;
case EpromMode.Write:
if (cbit < 8)
{
cdata &= ~(1 << (7 - cbit));
cdata |= bit << (7 - cbit++);
}
break;
case EpromMode.NotAck: output = 0x10; break;
case EpromMode.Ack: output = 0x00; break;
case EpromMode.AckWait:
if (bit == 0)
{
nextmode = EpromMode.Read;
cdata = data[caddress];
}
break;
}
}
private void Start()
{
switch (device)
{
case EpromDevice.X24C01:
mode = EpromMode.Addressing;
cbit = 0;
caddress = 0;
output = 0x10;
break;
case EpromDevice.X24C02:
mode = EpromMode.Data;
cbit = 0;
output = 0x10;
break;
}
}
private void FallX24C01()
{
switch (mode)
{
case EpromMode.Addressing:
if (cbit == 8)
{
mode = EpromMode.Ack;
output = 0x10;
}
break;
case EpromMode.Ack:
mode = nextmode;
cbit = 0;
output = 0x10;
break;
case EpromMode.Read:
if (cbit == 8)
{
mode = EpromMode.AckWait;
caddress = (caddress + 1) & 0x7F;
}
break;
case EpromMode.Write:
if (cbit == 8)
{
mode = EpromMode.Ack;
nextmode = EpromMode.Idle;
data[caddress] = (byte)cdata;
caddress = (caddress + 1) & 0x7F;
}
break;
}
}
public void LoadState(System.IO.BinaryReader stream)
{
stream.Read(data, 0, data.Length);
mode = (EpromMode)stream.ReadInt32();
nextmode = (EpromMode)stream.ReadInt32();
psda = stream.ReadBoolean();
pscl = stream.ReadBoolean();
output = stream.ReadInt32();
cbit = stream.ReadInt32();
caddress = stream.ReadInt32();
cdata = stream.ReadInt32();
isRead = stream.ReadBoolean();
}
private void FallX24C02()
{
switch (mode)
{
case EpromMode.Data:
if (cbit == 8)
{
if ((cdata & 0xA0) == 0xA0)
{
cbit = 0;
mode = EpromMode.Ack;
isRead = (cdata & 0x01) == 1;
output = 0x10;
if (isRead)
{
nextmode = EpromMode.Read;
cdata = data[caddress];
}
else
{
nextmode = EpromMode.Addressing;
}
}
else
{
mode = EpromMode.NotAck;
nextmode = EpromMode.Idle;
output = 0x10;
}
}
break;
case EpromMode.Addressing:
if (cbit == 8)
{
cbit = 0;
mode = EpromMode.Ack;
nextmode = (isRead ? EpromMode.Idle : EpromMode.Write);
output = 0x10;
}
break;
case EpromMode.Read:
if (cbit == 8)
{
mode = EpromMode.AckWait;
caddress = (caddress + 1) & 0xFF;
}
break;
case EpromMode.Write:
if (cbit == 8)
{
cbit = 0;
mode = EpromMode.Ack;
nextmode = EpromMode.Write;
data[caddress] = (byte)cdata;
caddress = (caddress + 1) & 0xFF;
}
break;
case EpromMode.NotAck:
mode = EpromMode.Idle;
cbit = 0;
output = 0x10;
break;
case EpromMode.Ack:
case EpromMode.AckWait:
mode = nextmode;
cbit = 0;
output = 0x10;
break;
}
}
private void FallX24C01()
{
switch (mode)
{
case EpromMode.Addressing:
if (cbit == 8)
{
mode = EpromMode.Ack;
output = 0x10;
}
break;
case EpromMode.Ack:
mode = nextmode;
cbit = 0;
output = 0x10;
break;
case EpromMode.Read:
if (cbit == 8)
{
mode = EpromMode.AckWait;
caddress = (caddress + 1) & 0x7F;
}
break;
case EpromMode.Write:
if (cbit == 8)
{
mode = EpromMode.Ack;
nextmode = EpromMode.Idle;
data[caddress] = (byte)cdata;
caddress = (caddress + 1) & 0x7F;
}
break;
}
}
private void RiseX24C02(int bit)
{
switch (mode)
{
case EpromMode.Data:
if (cbit < 8)
{
cdata &= ~(1 << (7 - cbit));
cdata |= bit << (7 - cbit++);
}
break;
case EpromMode.Addressing:
if (cbit < 8)
{
caddress &= ~(1 << (7 - cbit));
caddress |= bit << (7 - cbit++);
}
break;
case EpromMode.Read:
if (cbit < 8)
output = (cdata & 1 << (7 - cbit++)) != 0 ? 0x10 : 0x00;
break;
case EpromMode.Write:
if (cbit < 8)
{
cdata &= ~(1 << (7 - cbit));
cdata |= bit << (7 - cbit++);
}
break;
case EpromMode.NotAck: output = 0x10; break;
case EpromMode.Ack: output = 0x00; break;
case EpromMode.AckWait:
if (bit == 0)
{
nextmode = EpromMode.Read;
cdata = data[caddress];
}
break;
}
}
private void RiseX24C01(int bit)
{
switch (mode)
{
case EpromMode.Addressing:
if (cbit < 7)
{
caddress &= ~(1 << cbit);
caddress |= bit << cbit++;
}
else if (cbit < 8)
{
cbit = 8;
if (bit != 0)
{
nextmode = EpromMode.Read;
cdata = data[caddress];
}
else
{
nextmode = EpromMode.Write;
}
}
break;
case EpromMode.Ack:
output = 0x00;
break;
case EpromMode.Read:
if (cbit < 8)
output = (cdata & 1 << cbit++) != 0 ? 0x10 : 0x00;
break;
case EpromMode.Write:
if (cbit < 8)
{
cdata &= ~(1 << cbit);
cdata |= bit << cbit++;
}
break;
case EpromMode.AckWait:
if (bit == 0)
nextmode = EpromMode.Idle;
break;
}
}
private void Stop()
{
mode = EpromMode.Idle;
output = 0x10;
}
private void Start()
{
switch (device)
{
case EpromDevice.X24C01:
mode = EpromMode.Addressing;
cbit = 0;
caddress = 0;
output = 0x10;
break;
case EpromDevice.X24C02:
mode = EpromMode.Data;
cbit = 0;
output = 0x10;
break;
}
}
private void FallX24C02()
{
switch (mode)
{
case EpromMode.Data:
if (cbit == 8)
{
if ((cdata & 0xA0) == 0xA0)
{
cbit = 0;
mode = EpromMode.Ack;
isRead = (cdata & 0x01) == 1;
output = 0x10;
if (isRead)
{
nextmode = EpromMode.Read;
cdata = data[caddress];
}
else
{
nextmode = EpromMode.Addressing;
}
}
else
{
mode = EpromMode.NotAck;
nextmode = EpromMode.Idle;
output = 0x10;
}
}
break;
case EpromMode.Addressing:
if (cbit == 8)
{
cbit = 0;
mode = EpromMode.Ack;
nextmode = (isRead ? EpromMode.Idle : EpromMode.Write);
output = 0x10;
}
break;
case EpromMode.Read:
if (cbit == 8)
{
mode = EpromMode.AckWait;
caddress = (caddress + 1) & 0xFF;
}
break;
case EpromMode.Write:
if (cbit == 8)
{
cbit = 0;
mode = EpromMode.Ack;
nextmode = EpromMode.Write;
data[caddress] = (byte)cdata;
caddress = (caddress + 1) & 0xFF;
}
break;
case EpromMode.NotAck:
mode = EpromMode.Idle;
cbit = 0;
output = 0x10;
break;
case EpromMode.Ack:
case EpromMode.AckWait:
mode = nextmode;
cbit = 0;
output = 0x10;
break;
}
}
private void Stop()
{
mode = EpromMode.Idle;
output = 0x10;
}
