Digital Voice Systems VC-20-ATC-10B Especificaciones Pagina 78

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FAA20 Embedded NEXCOM Vocoder
Board Manual
This manual has been prepared for the Federal Aviation Administration.
FA100-00107 (March 2004) Rev 1.0.0 Page 72
8.3.8 COMCFG
The COMCFG command configures ASCII communication settings for
serial ports COM1 and COM2, i.e., baud rate, data bits, stop bits, parity,
and flow control. All five parameters must be supplied when updating any
setting.
Table 19: COMCFG Command Syntax
ATTRIBUTE DESCRIPTION
SYNTAX COMCFG [pid [brate,dbits,sbits,parity,flow]]
pid COM Port Identifier
1 = COM1
2 = COM2
brate Baud Rate. Two rates are available.
115200 = Standard rate (default)
921600 = High speed rate.
dbits Data Bits. Must be set to 8.
sbits Stop Bits. Must be set to 1.
parity Parity. Must be none.
N = None.
PARAMETERS
flow Hardware Flow Control.
D = Disabled (default)
H = Hardware flow enabled.
FLASH YES
Print current communication settings.
COM1: comcfg
> COMCFG COM1 = 115200,8,1,N,D
> COMCFG COM2 = 115200,8,1,N,D
EXAMPLES
Enable hardware flow control on COM2.
COM1: comcfg 2 115200,8,1,n,h
> COMCFG COM2 = 115200,8,1,N,H
This serial port configuration command only applies to the physical ports
COM1 and COM2. The virtual command port (COM3) uses the
synchronous nibble interface, so ASCII communication settings are not
applicable.
While hardware flow control is disabled to allow quick connection with
three-wire terminal interfaces, it is recommended that hardware flow control
be enabled for best performance. Hardware flow control is required for
software download and will insure that characters are not dropped for large
printouts, i.e. CFG command response.
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