From : PE1OAP
To : PA3GAS
Date : 21-Dec 17:27
MsgId : PN - 86977_PI8DRE
Title : Re: TF 2.6
Path: !PI8UTR!PI8AIR!PI8DRE!
From: PE1OAP@PI8DRE.#DRE.NLD.EU
To : PA3GAS@PI8GCB.#NH2.NLD.EU
Hallo Marten even een bericht terug.
Momenteel werk ik met mijn PK-232 met DAMA versie 2.6A.
Erg veel info over deze DAMA versie is er eigenlijk niet zo, wel is het zo
dat er een aantal bugs eruit gehaald zijn.
Dus hij is eigenlijk gewoon verbeterd vooral de Frack parameter..
enige info over 2.6 a
NORD>)
0048h db ' ' ; mnemonic name ( )
004Eh db 4 ; max. nbr of connections ( 4 )
004Fh db 00h ; Monitormode ( 00h )
; Bit 0 - I-Frames
; Bit 1 - UI-Frames
; Bit 2 - Supervisory-Frames
; Bit 3 - Monitor during connect
0050h db 1 ; Digipeat on = 1 ( 1 )
0051h db 32 ; P-Persistence-Value, 0..255 ( 32 )
0052h db 10 ; WAIT, 10ms, (Slottime) ( 10 )
0053h db 30 ; TXDELAY, 10ms ( 30 )
0054h db 03h ; Flow Control ( 03h )
; Bit 0 - Flow Control on
; Bit 1 - XON/XOFF on
0055h db 1 ; TX PTT, 0 suppressed ( 1 )
0056h db 1 ; Auto-Linefeed, 1 on ( 1 )
0057h db 1 ; Terminalecho, 1 on ( 1 )
0058h db 1 ; Version 2 protocol, 1 on ( 1 )
0059h db 2 ; MAXFRAME ( 2 )
005Ah db 10 ; RETRY ( 10 )
005Bh db 0 ; Callsign-check, 1 on ( 0 )
005Ch db 0 ; Fullduplex, 1 on ( 0 )
005Dh db 1 ; Terminal Bit 7 mask., 1 off ( 1 )
005Eh db 0 ; UIPOLL, 0=UI 1=UI+ ( 0 )
005Fh db 0 ; Stamp ( 0 )
; 0 off
; 1 status-messages
; 2 " and monitorframes
0060h db 0 ; send flags in pauses, 1 on ( 0 )
0061h db 0 ; Heardlist, 1 on ( 0 )
0062h dw 50 ; for ^, max. nbr of calls ( 50 )
0064h dw 150 ; Timer 2, 10ms ( 150 )
0066h dw 18000 ; Timer 3, 10ms ( 18000 )
0068h db 7 ; Alpha 1 ( 7 )
0069h db 15 ; Alpha 2 ( 15 )
006Ah db 3 ; Alpha 3 ( 3 )
006Bh dw 250 ; Initial RTT, 10 ms ( 250 )
006Dh db 60 ; Paclen for I-POLL ( 60 )
006Eh dw 600 ; Starttime DAMA-Timer, sec ( 600 )
; New parameters for PK232/PK88
0070h dw 1200 ; Speed HF-interface ( 1200 )
0072h dw 9600 ; Speed RS232-interface ( 9600 )
; 300 = 012Ch
; 600 = 0258h
; 1200 = 04B0h
; 2400 = 0960h
; 4800 = 12C0h
; 9600 = 2580h
; 19200 = 4B00h (only RS232)
0074h db 3 ; Modem-mode (see @H) ( 3 )
5. Switching to Original-Software (only PK232)
In fact there is one disadvantage about the new EPROM. The
Firmware only supports Packet-Radio. The other modes are not
operational any longer.
To be able to use the other modes it is desirable to have the
original firmware available, too.
One solution for this is a small circuit-board with two EPROM-
sockets and a connection to the EPROM-socket of the PK232. All
pins, except pin 20 (Chip-Enable) must be connected through all
sockets. On both sockets a 2.2k-resistor must be connected
between pin 20 and pin 28 (Vcc). Now with a switch one of the two
Chip-Enable-pins (pin 20) can be connected to pin 20 of the PK232
to make the EPROM operational.
One socket must contain the original firmware, the other socket
the new firmware-EPROM.
The switch must not be changed during operation.
6. Credits
The Firmware for PK232/PK88 is a port of the TNC2-version
developed by NORD>