Hi all,
I am using the Oscilloscope application in telosb and when I use the
line command:
"java net.tinyos.tools.Listen", capture the following package:
00 FF FF 00 06 1C 00 93 00 00 01 00 00 06 00 26 0F
93 0F 95 0F 92 0F 99 0F 93 0F 96 0F 94 0F 94 0F
and when I read directly from a USB port using the SerialPort class I
get the following package
E 45 00 FF FF 00 06 1C 00 93 00 00 01 00 00 06 00
26 0F 93 0F 95 0F 92 0F 99 0F 93 0F 96 0F 94 0F 94
0F 94 0F 93 A5 DB 7E
is easy to see that the structure of the package were added a few bytes
( beginning and end)...
my doubt is whether some of these bytes correspond to RSSI and LQI?
I tried the code in file
opt/tinyos-2.1.0/apps/Oscilloscope/build/telosb# app.c and I noticed
that there is 8 bits for RSSI and LQI to 8, the problem is to identify
which of these bytes corresponds to such events...
line 71
typedef nx_struct cc2420_footer_t {
} __attribute__((packed)) cc2420_footer_t;
#line 97
#line 81
typedef nx_struct cc2420_metadata_t {
nx_uint8_t rssi;
nx_uint8_t lqi;
nx_uint8_t tx_power;
nx_bool crc;
nx_bool ack;
nx_bool timesync;
nx_uint32_t timestamp;
nx_uint16_t rxInterval;
} __attribute__((packed))
thanks for any help
Jorge
--
MSc. Jorge Rodolfo Beingolea G.
Pervasive and High Performance Computing Group
Laboratory of Integrated Systems - LSI
Polytechnic School of the University of Sao Paulo - Brazil
Telf: 00 55 11 3091- 9741 Fax: 00 55 11 3091- 5665
Celu: 00 55 11 7155- 3685
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