Proxima ASA 7911, 7910 manual MCP Command Messages to the Serial Adapter, Transmit Data Packet

the External Computer creates a command packet, it should place a unique number (from 0 to 127) into the seqno field of the packet. When the Serial Adapter later generates a response to that packet, it will place this same value in the seqno field of the response. In this way, the External Computer can match re- sponses with commands.

MCP Command Messages to the Serial Adapter

This section describes each of the messages which may be sent to the Serial Adapter via its RS-232 serial line by an External Com- puter. The first byte of each command specifies the command that the Serial Adapter is to perform. It is followed by data bytes which are actually arguments to the command. The data format is 8 data bits, no parity, 1 stop bit.

Transmit Data Packet

Purpose: To send a data message over the radio to the specified Serial Adapter.

Response Expected from Serial Adapter: “Status Indication of Transmitted Packet”

Message Format:
BYTE	command (ASCII ‘T’, 54H)
BYTE	seqno
BYTE	len H	; Length of data field below
BYTE	len L
BYTE	destaddr H
BYTE	destaddr 3
BYTE	destaddr 2
BYTE	destaddr L
BYTES	data

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