参数资料
型号: DM300004-2
厂商: Microchip Technology
文件页数: 87/114页
文件大小: 0K
描述: BOARD DEMO DSPICDEM.NET 2
标准包装: 1
系列: dsPIC™
类型: 微控制器
适用于相关产品: CTR-21 PSTN,以太网 NIC
所含物品: 板,线缆,CD,电源
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V.22bis Soft Modem Demonstration
6.8.4
V.23 Connection Between dsPIC30F Soft Modem and US
Robotics Modem
Following are AT commands for enabling V.23 between the dsPIC03F Soft Modem and
US Robotics Model 5686E Reference Modem. If the AT command is valid,
HyperTerminal displays 'OK' as the response message. If the AT command is invalid or
unsupported, HyperTerminal displays 'ERROR' as the response message.
Supported AT commands for V.23 connection on US Robotics Modem:
AT Command
AT&F1
ATS0=1
ATS27=16
Function
Enable factory default settings
Enable auto answer after one ring
Enable the V.23 fallback
AT commands for V.23 connection on dsPIC30F Soft Modem:
AT Command
AT&F
AT+MS=3,0,300,1200
Function
dsPIC30 Soft Modem default settings
Force V.23 connection
6.8.5
V.21 connection Between dsPIC30F Soft Modem and US
Robotics Modem
Following are AT commands for enabling V.21 between the dsPIC30F Soft Modem and
US Robotics Model 5686E Reference Modem. If the AT command is valid,
HyperTerminal displays 'OK' as the response message. If the AT command is invalid or
unsupported, HyperTerminal displays 'ERROR' as the response message.
Supported AT commands for V.21 connection on US Robotics Modem:
AT Command
AT&F1
ATS0=1
ATS27=1
Function
Factory Default settings
Enable auto answer after one ring
Enable the V.21 fallback
Supported AT commands for V.21 connection on dsPIC30F Soft Modem:
AT Command
AT&F
Function
Enable dsPIC30F Soft Modem default settings
AT+MS=0,0,300,300 Force V.21 connection
Note:
? 2004 Microchip Technology Inc.
In almost all the modems, a V.42 LAPM connection is not supported for
V.21 and V.23 data pump modulation modes. Hence a connection will be
established in Non-V.42 mode (PROTOCOL NONE).
DS51471A-page 83
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