adamdunkels
3670fac618
Bugfix: timing fixed
2010-04-08 18:23:24 +00:00
adamdunkels
be117afe04
After a lot of tweaking and twiddling with the timing of the ContikiMAC code and the mechanisms in the CC2420 driver, things seem to work somewhat stable now - knock on wood!
2010-04-04 07:49:30 +00:00
adamdunkels
a637ddaf4e
Flush the rxfifo when turning off the radio instead of when turning it on. This seems to fix a bug that was seen in mspsim and seemed to appear on real hardware too.
2010-04-03 16:01:00 +00:00
adamdunkels
c9ca5d61e2
Rewrote the pending_packet() function to check the FIFOP pin instead of the 'pending' variable - works must better on real hardware and is now supported by the latest mspsim
2010-03-31 19:08:56 +00:00
adamdunkels
4d5f112960
New return value for invidating a link-layer collision
2010-03-30 23:00:22 +00:00
adamdunkels
5e7f99a2c0
Reverted the removal of the code that checked the FIFOP pin before reading a packet - checking FIFOP is the correct way to do it. Also added TXONCCA for now, including new radio.h return values to indicate a link-layer collision.
2010-03-30 23:00:05 +00:00
adamdunkels
a3a8c0e179
Safety check: only try to read a packet if it was preceeded by an interrupt (which sets the pending flag)
2010-03-19 13:18:53 +00:00
nifi
ea090a60e6
Fixed to call the SLIP callback function also when using IPv6
2010-03-17 07:10:25 +00:00
adamdunkels
67b0170a43
Bugfix: don't care about FIFOP when reading a packet; if the radio rx had been turned off before a packet was read, FIFOP would be zero and the packet would be trashed
2010-03-16 18:10:09 +00:00
nifi
55e0fec37e
* Changed to write keys to CC2420 RAM big-endian order
...
* Fixed cc2420_aes_cipher() to wait for encryption to finish before reading result
2010-03-15 23:04:54 +00:00
nifi
e834562455
* Fixed FASTSPI_READ_RAM_LE to wait for tx end before reading
...
* Added FASTSPI_WRITE_RAM_BE to write to RAM (big-endian order)
2010-03-15 23:01:37 +00:00
adamdunkels
0035a70537
Reworked the locking code, which seems to fix a few bugs caused by the interaction with contikimac. Contikimac performs a CCA check in a preempting rtimer, which requires underlying code to properly call the GET_LOCK() macro. This fix seems to solve most problems, but there may be others left.
2010-03-14 22:45:20 +00:00
nifi
58c55340ed
fixed to work with IPv6
2010-03-10 22:30:39 +00:00
joxe
1214b1fa40
made cc2420 panid and short address not dependent on endianness
2010-03-09 15:45:29 +00:00
adamdunkels
cc7d3ae142
Reset CCA mode to default. Make sure that the radio gto switched on when reading RSSI; otherwise node will reboot because of watchdog
2010-03-09 13:18:16 +00:00
adamdunkels
b9827d2b36
Bugfix: didn't correctly reset the pending flag when a packet was read from the radio
2010-02-25 16:06:44 +00:00
adamdunkels
4b04fdd328
Minor style fix
2010-02-23 18:26:26 +00:00
adamdunkels
1ee32c3074
Removed non-functional time synchronization code; added some experimental code for CCA checks (enabled CCA mode 1, a temporary development function for setting the CCA threshold); enable the possibility to switch off radio even if a packet is currently arriving
2010-02-23 18:24:49 +00:00
adamdunkels
5292005962
A null radio driver that does not do anything - useful in the native port and as a template for new radio drivers
2010-02-23 18:18:53 +00:00
adamdunkels
0b2b7bcdba
Removed inadvertedly left-over include file
2010-02-18 23:52:34 +00:00
adamdunkels
e34eb54960
A work-in-progress rework of the Contiki MAC and radio layers. The
...
main ideas are:
* Separates the Contiki low-layer network stack into four layers:
network (e.g. sicslowpan / rime), Medium Access Control MAC
(e.g. CSMA), Radio Duty Cycling RDC (e.g. ContikiMAC, X-MAC), and
radio (e.g. cc2420).
* Introduces a new way to configure the network stack. Four #defines
that specify what mechanism/protocol/driver to use at the four
layers: NETSTACK_CONF_NETWORK, NETSTACK_CONF_MAC, NETSTACK_CONF_RDC,
NETSTACK_CONF_RADIO.
* Adds a callback mechanism to inform the MAC and network layers about
the fate of a transmitted packet: if the packet was not possible to
transmit, the cause of the failure is reported, and if the packets
was successfully transmitted, the number of tries before it was
finally transmitted is reported.
* NULL-protocols at both the MAC and RDC layers: nullmac and nullrdc,
which can be used when MAC and RDC functionality is not needed.
* Extends the radio API with three new functions that enable more
efficient radio duty cycling protocols: channel check, pending
packet, and receiving packet.
* New initialization mechanism, which takes advantage of the NETSTACK
#defines.
2010-02-18 21:48:39 +00:00
adamdunkels
e455ef3533
Added the battery indicator to the sensors API
2010-01-15 08:51:21 +00:00
adamdunkels
fab672c7ba
Reverted the FIFOP->FIFO change; it didn't work :(
2010-01-14 23:32:05 +00:00
adamdunkels
53edff7655
Added sensor API for the SHT11 driver
2010-01-14 20:16:33 +00:00
zhitao
93c748cc74
Bug fix for mysterious packet loss : check FIFO pin instead of FIFOP pin for any unread RX FIFO data;
...
Added protection of packet timestamp across interrupts. Note that race condition can still occur as interrupts and self-scheduled reads of the RX FIFO interleave in certain unusual patterns. More investigation is needed.
2009-12-11 18:32:54 +00:00
adamdunkels
6815e2a53f
Code style fix
2009-12-05 11:26:20 +00:00
fros4943
9cc57c4324
generic radio return values
...
+ minor bug fix: SFD may go high without transmission starting (very seldom)
2009-11-13 10:07:53 +00:00
fros4943
26bb5ecd21
added radio and MAC generic return values to allow applications finding out whether the packet was transmitted
2009-11-13 08:59:22 +00:00
fros4943
5f71e9914e
configurable line buffer size + simplified interrupt handler + overflow check on line buffer
2009-11-02 12:47:06 +00:00
fros4943
6f4a537aa0
serial line ringbuf implementation + increased default buffer size to 128 bytes
2009-10-27 16:20:31 +00:00
adamdunkels
8745235a79
Minor codestyle fix
2009-09-09 21:07:42 +00:00
nifi
d4b619bcc5
Renamed SPI_WAITFOREOTxBUF to SPI_WAITFORTxREADY for clarity and generalized SPI transmission status checks to work with both AVR and MSP430
2009-09-07 11:31:26 +00:00
nifi
3a8ee769cb
Changed to monitor the UART transmitter buffer ready flag instead of the UART transmitter empty flag. This almost doubles the speed of transmitting data to CC2420. Patch by James Brown.
2009-08-31 12:06:34 +00:00
nifi
c81dbb6c89
Fixed problem with the radio driver changing transmission power to max when not specified at transmission. Also fixed bug where the lock was released when setting the transmission power.
...
Thanks to Djamel Djenouri and Marcus Lundén for identifying the problem.
2009-08-19 15:05:05 +00:00
fros4943
18a98bb573
bug fix: we need to explicitly turn off the cc2420 listen mode after a packet transmission
2009-08-19 12:00:04 +00:00
joxe
0c8b200987
added autoack configuration for CC2420 and reversed long ieee address for address recognition
2009-07-28 22:24:53 +00:00
joxe
a71664e8d1
quick fix for driver to work with 4MHz
2009-06-23 13:12:37 +00:00
adamdunkels
92862ad2a5
Increased the number of iterations for ugly-hack-loop that checks if a transmission has started, to accommodate a faster CPU speed on the MSP430
2009-04-29 11:38:50 +00:00
nifi
a3777852d4
* Corrected address for setting key 1
...
* Added missing include
2009-04-07 09:22:58 +00:00
adamdunkels
0076bfe8a5
Changed the name of the 'serial' module to 'serial-line' to signify that the module is about lines of data from the serial port, not individual bytes, and to make sdcc happy
2009-03-17 15:56:32 +00:00
adamdunkels
65eb5fd4e8
Renamed the rimebuf module to packetbuf to signal that the module is used outside of a pure Rime context (e.g., the sicslowpan code uses it).
2009-03-12 21:58:20 +00:00
adamdunkels
f634ccfb3d
Set transmission power based on packet attribute
2009-03-11 20:38:53 +00:00
adamdunkels
57b9cab27e
Set RSSI, correlation, and timestamp as packet attributes for incoming packets
2009-03-02 21:59:01 +00:00
nifi
dee785ae88
added configuration of checksum and timesynch
2009-02-25 21:21:06 +00:00
adamdunkels
e34e97cd6f
Minor code style fixes
2009-02-24 21:30:20 +00:00
zhitao
ae271a7f2f
replaced the TMOTE_SKY macros with CONTIKI_TARGET_SKY, in conformance to the latest target hint rules
2008-11-25 09:20:54 +00:00
adamdunkels
ceb2554d2f
Enabled the SHT11 register readout to allow reading the low-voltage indicator bit
2008-11-10 21:10:36 +00:00
adamdunkels
a42311dc7e
Only process incoming data if the process is polled. Compile checksum checks only for IPv4.
2008-11-06 08:18:29 +00:00
joxe
673d73bfa3
added energest on all parts of leds API and some cleanup
2008-09-29 11:35:28 +00:00
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
