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03/06/02 11:09
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#20479 - necessary handshake with modem?
Hi
I am trying to develop a system where a "client"(a 8535) is connecting to a "server"(also a 8535) via modem and through a telephone network. The "server" shall govern the "client" after the connection is made. At the server side a user is able to choose among different datapost(containing a quantity of measure values).
The user would also be able to stop the present transmission and ask for another datapost.
I will use 9600 in baudrate "all the way"(using AT command to set this value in the modem)client to modem, modem to modem,modem to server and I will use interruptroutine in the software. Software written in C.

client->connect
send x-values<-server
client->x-values
.
.
send y-values<-server
client->y-values
.
.
stop and drop<-server
connection

Problem:
In the hardware I want to reduce the connections to save some space. I want to exlude CTS/RTS and DTR/DSR to the microcontroller pins.(Now the they are connected in the serialport, CTS with RTS and DTR with DSR and this works with software handshake). I don“t have access to a tel.net. but I tried this between 8535 and the modem without sending any datapost only some AT-commands.

Question:
*Withhout loosing any data, is it ok to use the connection over the net without any hardware handshake?
*Is there anything else i should think of?

Thanks in advance Ann-Sofie

List of 5 messages in thread
TopicAuthorDate
necessary handshake with modem?            01/01/70 00:00      
RE: necessary handshake with modem?            01/01/70 00:00      
RE: necessary handshake with modem?            01/01/70 00:00      
RE: necessary handshake with modem?Andy            01/01/70 00:00      
RE: necessary handshake with modem?Andy            01/01/70 00:00      

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