C Commands Summary
MiLLennium GPSCard SW Version 4.503/4.52 Command Descriptions Manual Rev 2 87
COMn_RTS

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.

COMn_RTS will not influence the COMn co mmand handshake control of incoming commands.

Syntax:
Example:
com1_rts toggle,high,200,100
com2_rts toggle,low,250,125
COMn_RTS control active [lead] [tail]
Syntax Option Description Default Example
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