mirror of
https://github.com/oliverschmidt/contiki.git
synced 2024-09-09 08:54:32 +00:00
Detect if the medium is busy right before sending.
This commit is contained in:
parent
f192211444
commit
c90a758ac5
@ -420,7 +420,10 @@ PROCESS_THREAD(cc1020_sender_process, ev, data)
|
|||||||
// Wait until the receiver is idle.
|
// Wait until the receiver is idle.
|
||||||
PROCESS_WAIT_UNTIL(cc1020_rxstate == CC1020_RX_SEARCHING);
|
PROCESS_WAIT_UNTIL(cc1020_rxstate == CC1020_RX_SEARCHING);
|
||||||
|
|
||||||
// Wait for a short pseudo-random time before sending.
|
// Wait for the medium to become idle.
|
||||||
|
while (cc1020_carrier_sense());
|
||||||
|
|
||||||
|
// Then wait for a short pseudo-random time before sending.
|
||||||
clock_delay(1 + 10 * (random_rand() & 0xff));
|
clock_delay(1 + 10 * (random_rand() & 0xff));
|
||||||
}
|
}
|
||||||
|
|
||||||
|
Loading…
Reference in New Issue
Block a user