I am writing an interface to a clinical lab machine, which uses ASTM protocol for communication (http://makecircuits.com/blog/2010-06-25-astm-protocol.html).
To start with, I am trying to use golang's TCP Server to receive data. But not able to figure how to send ACK back to lab machine. I am a newbie in golang. Can any one suggest how I can proceed?
分享 The protocol in the link you supplied is for RS232. When sending data over TCPIP it is a stream (the receiver has to know when the data ends). Normally when changing an RS232 protocol to TCPIP, a header is added to each message which is the length of the message (often two bytes), so if you want to send ASCII ACK you send three bytes a two byte length and one byte data. When writing this you must flush the buffer, as for such a small packet it will not be transmitted until you do.
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