protected void decode(byte val) {
extFilter = Arithmetic.getBit(val, 7);
refDiv = (value & 0x78) >> 3;
alarmDisable = Arithmetic.getBit(val, 2);
alarmHigh = Arithmetic.getBit(val, 1);
alarmLow = Arithmetic.getBit(val, 0);
}
protected void decode(byte val) {
mlimit = (val & 0xe0) >> 5;
lockAvgN = Arithmetic.getBit(val, 4);
lockAvgMode = Arithmetic.getBit(val, 3);
settling = SETTLING[(val & 0x06) >> 1];
modemResetN = Arithmetic.getBit(val, 0);
}
protected void decode(byte val) {
rxtx = Arithmetic.getBit(val, RXTX);
fReg = Arithmetic.getBit(val, F_REG);
rxPd = Arithmetic.getBit(val, RX_PD);
txPd = Arithmetic.getBit(val, TX_PD);
fsPd = Arithmetic.getBit(val, FS_PD);
corePd = Arithmetic.getBit(val, CORE_PD);
biasPd = Arithmetic.getBit(val, BIAS_PD);
resetN = Arithmetic.getBit(val, RESET_N);
if (rxPd) receiver.endReceive();
else receiver.beginReceive(2.4);
if (txPd) transmitter.endTransmit();
else transmitter.beginTransmit(getPower(), getFrequency());
if (!rxPd || !txPd) {
ticker.activate();
} else {
ticker.deactivate();
}
boolean oldrxtx = Arithmetic.getBit(oldVal, RXTX);
if (rxtx && !oldrxtx) {
// switch from receive to transmit
if (radioPrinter != null) {
radioPrinter.println("CC1000: RX end receiving -> begin transmitting");
}
} else if (!rxtx && oldrxtx) {
// switch from transmit to receive
if (radioPrinter != null) {
radioPrinter.println("CC1000: TX end transmitting -> begin receiving");
}
}
currentFrequencyRegister = fReg ? FREQ_B_reg : FREQ_A_reg;
if (resetN && !Arithmetic.getBit(oldVal, RESET_N)) {
oldVal = val;
// TODO: reset the radio.
return;
}
if (val != oldVal) {
// TODO: reduce this code to compute state more easily
int state;
if (corePd) state = 1; // power down state
else state = 2; // core, e.g. crystal on state
if (!corePd && !biasPd) state = 3; // crystal and bias on state
if (!corePd && !biasPd && !fsPd) state = 4; // crystal, bias and synth. on
if (!corePd && !biasPd && !fsPd && !rxtx && !rxPd) state = 5; // receive state
if (!corePd && !biasPd && !fsPd && rxtx && !txPd) state = PA_POW_reg.getPower() + 6;
stateMachine.transition(state);
}
oldVal = val;
}
protected void decode(byte val) {
lockSelect = (val & 0xf0) >> 4;
int pllLockAccuracy = (val & 0x0c) >> 2;
setsLockThreshold = SETS_LOCK_THRESHOLD[pllLockAccuracy];
resetLockThreshold = RESET_LOCK_THRESHOLD[pllLockAccuracy];
pllLockLength = Arithmetic.getBit(val, 2);
lockInstant = Arithmetic.getBit(val, 1);
lockContinuous = Arithmetic.getBit(val, 0);
}
public void fire() {
// TODO: multiple calls to decode()
value = Arithmetic.setBit(value, CAL_START, false);
decode(value);
value = Arithmetic.setBit(value, CAL_COMPLETE, true);
decode(value);
LOCK_reg.write((byte) ((LOCK_reg.read() & 0x0f) | 0x50)); // LOCK = CAL_COMPLETE
if (radioPrinter != null) {
radioPrinter.println("CC1000: Calibration complete ");
}
calibrating = false;
}
protected void decode(byte val) {
bufCurrent = BUF_CURRENT[(val & 0x20) >> 5];
lnaCurrent = LNA_CURRENT[(val & 0x18) >> 3];
ifRSSI = (val & 0x06) >> 1;
xoscBypassExternal = Arithmetic.getBit(val, 0);
}
/**
* The constructor for the <code> Transmission </code> class creates a new transmission with
* several properties like start and end times, first and last bit to be transmitted and the
* data itself.
*
* @param o Transmitter object
* @param pow Power for the transmission
* @param freq the frequency for the transmission
*/
protected Transmission(Transmitter o, double pow, double freq) {
origin = o;
power = pow;
Pt = pow;
f = freq;
start = o.clock.getCount();
end = Long.MAX_VALUE;
long l = start + o.leadCycles;
firstBit = origin.getBitNum(l);
lastBit = Long.MAX_VALUE;
data = new byte[Arithmetic.roundup(o.medium.maxLength, BYTE_SIZE)];
}
protected void decode(byte val) {
boolean oldCalStart = calStart;
calStart = Arithmetic.getBit(val, 7);
calDual = Arithmetic.getBit(val, 6);
calWait = Arithmetic.getBit(val, 5);
calCurrent = Arithmetic.getBit(val, 4);
calComplete = Arithmetic.getBit(val, 3);
calIterate = (value & 0x7);
if (!oldCalStart && calStart && !calibrating) {
calibrating = true;
// OL: calibration time depends on the reference frequency
// worst case is 34ms
// it is determined with: 34ms * 1MHz / (Fxosc / REFDIV)
// with Fxosc is 14.7456 MHz for CC1000 on Mica2
// and REFDIV is set in the PLL register
// in the current TinyOS version (1.1.7) REFDIV seems to be 14
// resulting in a delay of a little more than 32ms
// Reference: CC1000 datasheet (rev 2.1) pages 20 and 22
double calMs = (34.0 * 1000000.0 / FXOSC_FREQUENCY) * PLL_reg.refDiv;
clock.insertEvent(calibrate, clock.millisToCycles(calMs));
}
}
/**
* The <code>readBit()</code> method reads a single bit from the IO register.
*
* @param num the number of the bit to read
* @return the value of the bit as a boolean
*/
public boolean readBit(int num) {
return Arithmetic.getBit(read(), num);
}
protected void decode(byte val) {
preSwing = PRE_SWING[(val & 0xc0) >> 6];
preCurrent = PRE_CURRENT[(val & 0x30) >> 4];
ifInput = Arithmetic.getBit(val, 3);
ifFront = Arithmetic.getBit(val, 4);
}
protected void decode(byte val) {
fsResetN = Arithmetic.getBit(val, 0);
}
protected void decode(byte val) {
peakDetect = Arithmetic.getBit(val, 7);
peakLevelOffset = val & 0x7f;
}
private void outputReadBit() {
PDATA_out.outputPin = Arithmetic.getBit(readData, 14 - bitsRead);
}