* Intel Research Berkeley, 2150 Shattuck Avenue, Suite 1300, Berkeley, CA,
* 94704. Attention: Intel License Inquiry.
*/
-
-/**
- * Implementation of the OSKI RadioSenseToLeds application. This
- * application periodically broadcasts a reading from its platform's
- * demo sensor, and displays broadcasts it hears on its LEDs. It displays
- * the two most signficant bits of the value on LEDs 1 and 2; if there is
- * an error, it lights LED 0.
- *
- * @author Philip Levis
- * @date June 12 2005
- *
- **/
-
+
#include "Timer.h"
#include "RadioSenseToLeds.h"
-module RadioSenseToLedsC {
+/**
+ * Implementation of the RadioSenseToLeds application. RadioSenseToLeds samples
+ * a platform's default sensor at 4Hz and broadcasts this value in an AM packet.
+ * A RadioSenseToLeds node that hears a broadcast displays the bottom three bits
+ * of the value it has received. This application is a useful test to show that
+ * basic AM communication, timers, and the default sensor work.
+ *
+ * @author Philip Levis
+ * @date June 6 2005
+ */
+
+module RadioSenseToLedsC @safe(){
uses {
interface Leds;
interface Boot;
event void RadioControl.startDone(error_t err) {
if (err == SUCCESS) {
- call MilliTimer.startPeriodic(1000);
+ call MilliTimer.startPeriodic(250);
}
}
event void RadioControl.stopDone(error_t err) {}
return;
}
else {
- RadioSenseMsg* rsm;
+ radio_sense_msg_t* rsm;
- rsm = (RadioSenseMsg*)call Packet.getPayload(&packet, NULL);
- if (call Packet.maxPayloadLength() < sizeof(RadioSenseMsg)) {
+ rsm = (radio_sense_msg_t*)call Packet.getPayload(&packet, sizeof(radio_sense_msg_t));
+ if (rsm == NULL) {
return;
}
rsm->error = result;
rsm->data = data;
- if (call AMSend.send(AM_BROADCAST_ADDR, &packet, sizeof(RadioSenseMsg)) == SUCCESS) {
+ if (call AMSend.send(AM_BROADCAST_ADDR, &packet, sizeof(radio_sense_msg_t)) == SUCCESS) {
locked = TRUE;
}
}
event message_t* Receive.receive(message_t* bufPtr,
void* payload, uint8_t len) {
call Leds.led1Toggle();
- if (len != sizeof(RadioSenseMsg)) {return bufPtr;}
+ if (len != sizeof(radio_sense_msg_t)) {return bufPtr;}
else {
- RadioSenseMsg* rsm = (RadioSenseMsg*)payload;
+ radio_sense_msg_t* rsm = (radio_sense_msg_t*)payload;
uint16_t val = rsm->data;
- call Leds.led0Toggle();
- if (val & 0x8000) {
- call Leds.led1On();
- }
- else {
- call Leds.led1Off();
- }
- if (val & 0x4000) {
- call Leds.led2On();
- }
- else {
- call Leds.led2Off();
- }
+ if (val & 0x0004)
+ call Leds.led2On();
+ else
+ call Leds.led2Off();
+ if (val & 0x0002)
+ call Leds.led1On();
+ else
+ call Leds.led1Off();
+ if (val & 0x0001)
+ call Leds.led0On();
+ else
+ call Leds.led0Off();
return bufPtr;
}
}