Novatel OM-20000041 用户手册
D
Logs summary
144
MiLLennium GPSCard Software Version 4.50 Command Descriptions Manual Rev 1
CDSA/B
Communication and Differential Decode Status
The GPSCard maintains a running count of a variety of status indicators of the data link. This log outputs a report
of those indicators.
of those indicators.
Parity and framing errors will occur if poor transmission lines are encountered or if there is an incompatibility in
the data protocol. If errors occur, you may need to confirm the bit rate, number of data bits, number of stop bits and
parity of both the transmit and receiving ends. Overrun errors will occur if more characters are sent to the UART
than can be removed by the on-board microprocessor.
the data protocol. If errors occur, you may need to confirm the bit rate, number of data bits, number of stop bits and
parity of both the transmit and receiving ends. Overrun errors will occur if more characters are sent to the UART
than can be removed by the on-board microprocessor.
CDSA
Structure
$cdsa
week
seconds
xon1
csts1
parity1
overrun1
framing1
rx1
tx1
xon2
cts2
parity2
overrun2
framing2
rx2
tx2
rtca
crc
crc
rtcaa
fail
fail
rtca
good
good
rtcm
par
par
rtcma
fail
fail
rtcm
good
good
dcsa
fail
fail
dsca
good
good
dcsb
fail
fail
dcsb
good
good
cmr
fail
fail
cmr
good
good
res’d
*xx
[CR][LF]
Field #
Field type
Data Description
Example
1
$CDSA
Log header
$CDSA
2
week
GPS week number
787
3
seconds
GPS seconds into the week
500227
4
xon1
Flag to indicate that the com1 is using XON/XOFF handshaking protocol and port has received
an xoff and will wait for an xon before sending any more data.
an xoff and will wait for an xon before sending any more data.
0
5
cts1
Flag to indicate that com1 is using CTS/RTS handshake protocol and cts line port has been
asserted. The port will wait for the line to de-assert before sending any more data.
asserted. The port will wait for the line to de-assert before sending any more data.
0
6
parity1
The number of character parity errors from the UART of COM1
0
7
overrun1
The number of UART buffer overrun errors of COM1
0
8
framing1
The number of character framing errors from the UART of COM1
0
9
rx1
The number of the characters received from COM1
0
10
tx1
The number of the characters sent out to COM1
9
11
xon2
Flag to indicate that COM2 is using XON/XOFF handshaking protocol and port has received an
xoff and will wait for an xon before sending any more data.
xoff and will wait for an xon before sending any more data.
0
12
cts2
Flag to indicate that COM2 is using CTS/RTS handshake protocol and cts line port has been
asserted. The Port will wait for the line to de-assert before sending any more data.
asserted. The Port will wait for the line to de-assert before sending any more data.
0
13
parity2
The number of character parity errors from the UART of COM2
0
14
overrun2
The number of UART buffer overrun errors of COM2
0
15
framing2
The number of character framing errors from the UART of COM2
0
16
rx2
The number of characters received from COM2
0
17
tx2
The number of characters sent out to COM2
9
18
rtcacrc
The number of RTCA CRC failures
0
19
rtcaafail
The number of invalid ASCII $RTCA,....,*xx records indicating that the ASCII checksum “xx”
failed.
failed.
0
20
rtcagood
The number of RTCA records that pass error checking
0
21
rtcmpar
The number of 30 bit RTCM parity failures
0
22
rtcmafail
The number of invalid ASCII $RTCM,....,*xx records indicating that the ASCII checksum “xx”
failed.
failed.
0
23
rtcmgood
The number of RTCM records that pass error checking
0
24
dcsafail
DCSA is now obsolete.
0