Novatel OM-20000041 用户手册

C 

Commands Summary

MiLLennium GPSCard Software Version 4.50 Command Descriptions Manual Rev 1

85

This command enables versatile control of the 

RTS

 handshake line for use with output data logging in conjunction

with external devices such as a radio transmitter.  The default state for the 

COM1

 or 

COM2

 

RTS

 line is always high.

COM

n_

RTS

 will not influence the 

COM

n command handshake control of incoming commands.

com1_rts toggle,high,200,100

com2_rts toggle,low,250,125

COMn_RTS  control

active

[lead]

[tail]

COMn_RTS

n = 1 or 2

Selects COM1 or COM2 port

com1_rts

control

high

control is always high

high

toggle

low

control is always low

toggle

control toggles between high and low
(active, lead, and tail fields are TOGGLE options only)

active

high

data available during high

n/a

high

low

data available during low

lead

variable

lead time before data transmission (milliseconds)

n/a

200

tail

variable

tail time after data transmission (milliseconds)

n/a

100

OUTPUT DATA

DTR

300 ms

lead

tail

control

150 ms

Data

OUTPUT DATA

RTS

200 ms

lead

tail

control

100 ms

Data