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updated duration for 19200bps transmissions

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added some fault handling
This commit is contained in:
fros4943 2007-04-23 08:28:30 +00:00
parent 1c818c039f
commit 923ad07abf
1 changed files with 18 additions and 6 deletions
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24
tools/cooja/java/se/sics/cooja/contikimote/interfaces/ContikiRadio.java
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@ -26,7 +26,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: ContikiRadio.java,v 1.11 2007/02/28 09:48:48 fros4943 Exp $
* $Id: ContikiRadio.java,v 1.12 2007/04/23 08:28:30 fros4943 Exp $
*/
package se.sics.cooja.contikimote.interfaces;
@ -341,30 +341,42 @@ public class ContikiRadio extends Radio implements ContikiMoteInterface,
// TODO Energy consumption of transmitted packet?
this.setChanged();
this.notifyObservers();
//logger.debug("----- CONTIKI TRANSMISSION ENDED -----");
}
// Check if a new transmission should be started
if (!isTransmitting && myMoteMemory.getByteValueOf("simTransmitting") == 1) {
isTransmitting = true;
int size = myMoteMemory.getIntValueOf("simOutSize");
if (size <= 0) {
logger.warn("Skipping zero sized Contiki packet");
myMoteMemory.setByteValueOf("simTransmitting", (byte) 0);
return;
}
packetFromMote = myMoteMemory.getByteArray("simOutDataBuffer", size);
if (packetFromMote == null || packetFromMote.length == 0) {
logger.warn("Skipping zero sized Contiki packet");
myMoteMemory.setByteValueOf("simTransmitting", (byte) 0);
return;
}
// Assuming sending at 19.2 kbps, with manchester-encoding (x2) and 1
// bit/byte UART overhead (x9 instead of x8)
int duration = (int) ((2 * size * 9) / 19.2); // ms
isTransmitting = true;
// Assuming sending at 19.2 kbps, with 30 bytes overhead
int duration = (int) ((9 * (size+30)) / 19.2); // ms
transmissionEndTime = myMote.getSimulation().getSimulationTime()
+ Math.max(1, duration);
lastEventTime = myMote.getSimulation().getSimulationTime();
lastEvent = RadioEvent.TRANSMISSION_STARTED;
this.setChanged();
this.notifyObservers();
//logger.debug("----- NEW CONTIKI TRANSMISSION DETECTED -----");
// Deliver packet right away
lastEvent = RadioEvent.PACKET_TRANSMITTED;
this.setChanged();
this.notifyObservers();
//logger.debug("----- CONTIKI PACKET DELIVERED -----");
}
}