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IK1SHJ > MFJ 19.05.96 11:45l 36 Lines 1177 Bytes #999 (0) @ WW
BID : 13921_I1XZZ
Read: DG5NEK GUEST DF6VB
Subj: TF27_MFJ.DOC TF27B firmware FOR MFJ 1278
Path: DB0KCP<HB9OS<HB9H<HB9OK<IW2FPO<IK2UUB<IK2JYT<IK2HDG<IK1ZZN<I1ICZ<
I1XZZ
Sent: 960519/0832Z @:I1XZZ.ILIG.ITA.EU #:13921 [Genova] $:13921_I1XZZ
From: IK1SHJ@I1XZZ.ILIG.ITA.EU
To : MFJ@WW
TF27_MFJ is the code of TF27B firmware modified in order to work with
the MFJ1278 TNC.
The TF27B FIRMWARE is an HOST MODE TNC2 program that include KISS
& DAMA protocol and more.
The code has ben patched to work on the MFJ1278 but using it you
will lose the ALL MODE features of your tnc, the right choice is
to use this eprom and the original one mounted on an atttachment
board end externally swtichable but you have to do the hardware !!!
You can program this code on a 27C256 EPROM but in such case you must
left PIN 1 of the ic OUT OF THE SOCKET and wire it to +5 Volts
(PIN 28 of the EPROM).
If You use a 27C512 program the code IN THE SECOND HALF OF THE EPROM
(starting from address 8000H).
Remove the original EPROM at position U23 and install the TF27B
patched one, the MFJ 1278 will respond you as a TNC2 at 9600 BAUD.
To work at 4800 BAUD Patch 7E3F:48 (HEX)
BUG REPORTS ARE WELCOME
73 DE Giovanni Bini IK1SHJ@I1XZZ.#GE.ITA.EU JN44LJ GENOVA.
Email net_esaotege@pn.itnet.it
Mail addr. Giovanni Bini
Via F. Turati 4/10
16128 GENOVA ITALY
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