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Original thread:
Post 6 made on Friday June 5, 2020 at 20:47
Lyndel McGee
RC Moderator
Joined:
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August 2001
12,992
Anthoiny,

I know about the TCP/IP handshake but in the JVC Projector protocol above

I am of the opinion that the handshake they discuss is in the data plane of messages across the socket, not the TCP/IP socket negotiation control Plane.

I believe that at this step in Fbrighi's initial writeup is where this 3-way handshake occurs.

Controller -> connection request

The protocol document at [Link: support.jvc.com]
is somewhat misleading.

Following TCP/IP connection, users just first wait for PJ_OK to be received and then they can follow with 'PJ_REQ\n'. Next wait for 'PJ_ACK\n', and then
send command bytes + Linefeed (\n).

If you need to send multiple commands ensuring that there is no more than 5 seconds elapsing between commands, it appears you may be able to send 'PJ_REQ\n', then wait for another 'PJ_ACK\n', and finally send command #2 bytes + Linefeed.


;-)

Last edited by Lyndel McGee on June 5, 2020 21:04.
Lyndel McGee
Philips Pronto Addict/Beta Tester


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