Commit Graph

25 Commits

Author SHA1 Message Date
adamdunkels
6a460fecdd There is problem with the CC2420 driver: under high traffic load the packets often get mangled in the receive FIFO. Not sure why this happens or how to best prevent it. As a temporary workaround, I've added an additional CRC16 check to the incoming packets. This eats two bytes from each packet, but at least protects against the erroneous packets we've seen quite a few of lately. The reception code was also cleaned up, which resulted in a smaller code size. 2008-08-26 21:44:03 +00:00
adamdunkels
66876625d4 Changed name of the simple-cc2420 module to cc2420: changed all function names and variable names from simple_cc2420_* to cc2420_*. 2008-07-02 09:05:40 +00:00
adamdunkels
1586d8f36f Changed filename of the CC2420 driver from simple-cc2420 to cc2420. 2008-07-01 21:02:51 +00:00
adamdunkels
39abed8672 Moved old CC2420 driver to the backyard 2008-02-24 22:29:08 +00:00
bg-
70ddc0f27e * If we detect a RXFIFO overflow schedule a poll of the device driver. 2007-07-30 14:54:49 +00:00
bg-
8f0d9aab89 * Change max life of neigbour entries from 60 to 30 seconds by
changing the time unit (quanta) from 4 to 2 seconds.
2007-06-28 15:08:53 +00:00
bg-
08d547780c * Some extra delay when broadcasting to break potential symmetries. 2007-06-01 14:37:02 +00:00
bg-
81b684414d * Changed implementation for dealing with retransmissions to be
strictly event driven. The old implementation was rather process
  like and the new one is still implemented as a process.
2007-05-31 10:15:57 +00:00
bg-
1009c3fabf * Literal constants REMOTE_*. 2007-05-21 14:24:51 +00:00
bg-
34b1d02607 * Need to track if this was the incoming interface. 2007-05-08 08:27:34 +00:00
bg-
536703d0a2 * Check in with debug off! 2007-05-07 12:02:14 +00:00
bg-
d34db6ee92 * Change retransmission scheme both for unicasts and for
broadcasts. Only count retransmissions that actually caused
  transmission (according to the hardware).
2007-05-07 12:01:32 +00:00
bg-
83f2b1da00 * Use uip_fw return codes.
* Use unicast retransmission scheme also for broadcasts.
2007-05-02 14:51:20 +00:00
bg-
e7d7e31bc9 * Better management of "DATA ACK"s. 2007-04-30 09:41:42 +00:00
bg-
478953dcf4 * Randomised backoff when broadcasting.
* Only warn about rxfifo overflows when sending.

* More intricate tests to verify if transmission really started.
2007-04-04 11:46:10 +00:00
bg-
95164eb39f * Perform RXFIFO overflow check as late as possible when sending. 2007-02-01 14:00:27 +00:00
bg-
2a879202a2 * Initial AVR port.
* Check for RXFIFO overflow before sending.

* Fix in loop that waits for SFD start.
2007-01-24 16:26:55 +00:00
bg-
29572668ac * Typo in comment. 2006-12-20 13:42:55 +00:00
bg-
5d970109c8 * If broadcast transmission never starts, retry with (nearly)
exponential backoff.

* Fine-tune check for transmission start.
2006-12-01 15:04:04 +00:00
bg-
f3a6cee55b * Oops, some machine dependent changes was accidentally committed. 2006-11-17 13:03:51 +00:00
bg-
27e531baad * Set CC2420_RXCTRL1.RXBPF_LOCUR=1 as recommended in data sheet.
* Use PRINTF to disable debug printfs.
2006-11-17 12:27:23 +00:00
bg-
5dacf0be11 Move misc. routines to new file. 2006-08-09 17:39:39 +00:00
bg-
fb94d50410 Change typedef of uip_ipaddr_t from a vector type to a union.
typedef union uip_ip4addr_t {
  u16_t u16[2];
  u8_t  u8[4];
} uip_ip4addr_t;

typedef uip_ip4addr_t uip_ipaddr_t;

This implies that one must consistently pass pointers to
uip_ipaddr_t:s and not mix and match pointers with
uip_ipaddr_t:s as was done earlier.
2006-08-09 16:13:39 +00:00
bg-
4eee7b8bf4 Slightly outdated versions were imported to sf. 2006-08-02 14:33:36 +00:00
adamdunkels
c9e808d638 Import of the contiki-2.x development code from the SICS internal CVS server 2006-06-17 22:41:10 +00:00