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added transmission duration approximation

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(manchester encoding, uart-extra-bit, 19.2kbps)
This commit is contained in:
fros4943 2006-10-02 15:38:44 +00:00
parent 779ecd27a4
commit 83d4720279
1 changed files with 7 additions and 2 deletions
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9
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 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE. * SUCH DAMAGE.
* *
* $Id: ContikiRadio.java,v 1.3 2006/10/02 15:18:55 fros4943 Exp $ * $Id: ContikiRadio.java,v 1.4 2006/10/02 15:38:44 fros4943 Exp $
*/ */
package se.sics.cooja.contikimote.interfaces; package se.sics.cooja.contikimote.interfaces;
@ -307,7 +307,12 @@ public class ContikiRadio extends Radio implements ContikiMoteInterface {
transmitting = true; transmitting = true;
int size = myMoteMemory.getIntValueOf("simOutSize"); int size = myMoteMemory.getIntValueOf("simOutSize");
packetFromMote = myMoteMemory.getByteArray("simOutDataBuffer", size); packetFromMote = myMoteMemory.getByteArray("simOutDataBuffer", size);
transmissionEndTime = myMote.getSimulation().getSimulationTime() + 100; // TODO What's the duration?
// 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
transmissionEndTime = myMote.getSimulation().getSimulationTime()
+ Math.max(1, duration);
lastEventTime = myMote.getSimulation().getSimulationTime(); lastEventTime = myMote.getSimulation().getSimulationTime();
lastEvent = RadioEvent.TRANSMISSION_STARTED; lastEvent = RadioEvent.TRANSMISSION_STARTED;