TI-92 Link Protocol Guide

TI-92 Link Protocol Guide - Getting OS version

OS version

By requesting the main\version, the calculator returns ROM version.

Getting OS version only

Indeed, the request is like requesting a backup.

The protocol for silently receiving the version is shown below:

Step Direction Packet

1 REQ with request-style backup header. Name is "main\version".

2 ACK

3 VAR with data-style backup header.

4 ERR

Step	Packet
1		REQ with request-style backup header. Name is "main\version".
2	ACK
3	VAR with data-style backup header.
4	ERR

Example (PC requesting version):

PC: 09 A2 12 00 00 00 00 00 1D 0C 6D 61 69 6E 5C 76 65 72 73 69 6F 6E 30 05 Request informations

TI: 89 56 00 00 Acknowledgement of REQ

TI: 89 06 0A 00 00 04 00 00 1D 04 31 2E 31 31E6 00 Variabel header (name is "1.11")

PC: 09 5A 00 00 00 00 Error

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Site maintained by Romain Liévin (roms@lpg.ticalc.org) and Tim Singer (tsinger@gladstone.uoregon.edu)

PC:	`09 A2 12 00 00 00 00 00 1D 0C 6D 61 69 6E 5C 76 65 72 73 69 6F 6E 30 05`	Request informations
TI:	`89 56 00 00`	Acknowledgement of REQ
TI:	`89 06 0A 00` `00 04 00 00 1D 04 31 2E 31 31``E6 00`	Variabel header (name is "1.11")
PC:	`09 5A 00 00 00 00`	Error