Olivetti M10 TELCOM FUNCTIONS
by Terry Kepner
     Now that DAK has popularized the Olivetti M10 picocomputer 
by selling it at bargain basement prices, here are are few 
tidbits of information about the machine.
     It is often useful to poke TELCOM status into memory from a 
basic program, for example from a BASIC program that uses the RS-232 
or modem port (otherwise you would have to go into TELCOM, set 
the parameters, and then go to your BASIC telecommunications 
program).  "Status" is held in RAM in locations 63070 to 63074, 
in a five character field.  The leading character is the baud 
rate, followed word length, parity mode, number of stop bits, and 
XON/OFF status.  If you only want to change the baud rate, you 
can use the direct command: POKE 63070,"M" (or the baud rate you 
want to use).
     If, for example, you want to reset TELCOM to modem status 
before leaving a file transfer program, you could add this short 
routine to your program:
1000 REM  Pokes "M7I1E" into "Status"
1010 FOR A = 63670 TO 63074
1020 READ B : POKE A,B : NEXT
1030 DATA 77,55,73,49,69
1040 REM   M  7  I  1  E
     The values in the DATA statement are the ASCII value of the 
character you want to poke into memory.  Change the values in the 
DATA statement to set any "Status" required.
     In addition here are some other important TELCOM memory 
locations, what they control, and the BASIC command you can use 
to change them.  
  POKE 63067,0 will set TELCOM to HALF DUPLEX mode.
  POKE 63067,255 will set TELCOM to FULL DUPLEX mode.
  POKE 63068,255 will set TELCOM to ECHO to printer.  
(Turns ECHO on)
  POKE 63068,0 will set TELCOM to not ECHO to printer.  
(Turns ECHO off)
  POKE 63019,1 will set TELCOM to use 10 pulses per 
second when dialing phone numbers.
  POKE 63019,20 will set TELCOM to use 20 pps when 
dialing.
  POKE 63069,1 will set TELCOM to send a LF (line feed) 
with every CR (carriage return) when uploading files.
  POKE 63069,0 will reset TELCOM to no LF after CR.

     This last poke, POKE 63069,1, is necessary when 
communicating with other Kyocera manufactured computers, such as 
the NEC 8201, TRS-80 Model 100, and, of course, the Olivetti M10.  
Also, some mainframe computers and printers require the 
linefeed/carriage-return combination.  While the previous pokes 
duplicate commands in TELCOM, this one has no equivalent, so you 
MUST use the BASIC command to add or delete this feature from 
TELCOM.  
     Finally, you can make a direct jump from BASIC to TELCOM by 
executing a CALL 20814.  When you exit TELCOM after 
this call, you will go to the main menu and not back to BASIC.
     A final word of warning: all these addresses are for the US 
version of the Olivetti M10, the international version uses 
different addresses.  The TELCOM status addresses in the 
international version are four locations HIGHER, so change the 
loop in line 1010 to read FOR A = 63074 TO 63078.  The 
pokes, likewise, should also have four added to their addresses.  
Because I don't have an international M10 version available to 
me, I can't verify all of this information for that machine 
(i.e., I have no idea of the execution address of TELCOM, or how 
to find that information).

Reprinted from Pico Magazine with their permission
Copyright (c) 1985, still held by Pico Magzine
-Terry Kepner, Technical Editor, Pico Magazine