CompuServe Messages

#Telebit Modems & Amiga?

    29-Nov-90 15:43:07
Fm: Andrew J. Richardson 76667,3312
To: Hal Kuff 76154,53
Hal, i'e just completed a setup using a telebit trailblazer plus to connect to uunet for a uucp connection. it took some trial and error on my part, plus several re-reads of the manual. the amiga 2000 (mine at least) works fine at up to 19.2 kbps through the stock serial port. tell gil to go to the serial prefs section, and select rts/cts for the handshaking mode. this uses the hardware connection through the serial cable to start/stop data flow. xon/xoff just isn't reliable enough at high speed, at least that's been my experience. the registers involved are 58=2 and 68=255. also set a good sized buffer, say 8000 bytes. as far as the zmodem and x/y modem, i believe that the software must be written to accomidate the "spoofing" mode you are using. if you set register 111=20, you're telling the modem to send x/ymodem acknowledgement messages back to the host automatically…and just raw data to the term software you're using. if the term software is expecting full x/ymodem blocks, and trying to calculate crc's to ack there's bound to be a problem, since the telebit will strip the x/ymodem info. try setting register 111=0 (no protocol), and run the transfers under software (normal) control. then experiment from there when you get it running. the most problems i encountered were with registers 50 and 51. i wound up setting 50=0 (autobaud), so that it changes to whatever speed the answering modem is at. since most modems answer at the highest speed, then cycle down to slowest, this works well. register 51=5, which is the highest speed my machine and term software can handle (as well as the modem). —Andrew