CSI Wireless GBX, Reference Manual

Page: 85 / 109

GBX Reference Manual 65
5.3.2.3 GBX Host Port Rate Command ($PCSI,6)
The GBX Port Rate command sets the communication baud rates of
the one external (P1-Main) and three internal (P2-GPS, P3-DGPB, P4-
DGPA) GBX micro-controller ports. The command has the following
form:
$PCSI,6,r
1
,r
2
,r
3
,r
4
<CR><LF>
Response:
$PCSI,ACK,6, r
1
,r
2
,r
3
,r
4
$PCSI,6,P1@r
1
,P2@r
2
,P3@r
3
,P4@r
4
In this message, r
x
designates the GBX host communications port
baud rate, for the one external and three internal GBX host
communication ports, <P1>, <P2>, <P3>, and <P4>. Baud rates r
1
, r
2
,
r
3
, and r
4
are selected from Table 5-2.
Caution – Only <P1> is applicable to regular GBX operations.
Leave all others, <P2>, <P3>, and <P4> at their factory pre-
configured values as defined in Table 5-3.
Table 5-2 GBX Baud Rates
r
x
1200
2400
4800
9600
The P1-Main external, and P2-GPS, P3-DGPB, and P4-DGPA internal
GBX communication ports have the following functions:
P1-MAIN
{1200, 2400, 4800, or 9600 baud}
Baud rate at which the GBX communicates through the
A port of its external bi-directional DB-9S data connector
(Pins 2 and 3). Change this parameter to match the