🚀 go-pugleaf

In article <8706230308.AA26681@ucbvax.Berkeley.EDU> SYSTEM@UVPHYS.BITNET (NAME NIK ZAPANTIS) writes:
>  I would like to be able to send a BREAK to my RS-232 port from my program,
>just like UNITERM does with the ALT L or ALT B key.
>
>Thank you in advance,
>
>Nik Zapantis


To send the break signal, you need to program the 68901's tsr register. If
you put in a hex 0x89 the RS232 port will now send the break signal. Write 
tsr with a hex 0x81 to turn it off.

The Atari developer's kit includes a function called Rsconf and basically
if you do something like Rsconf(-1, -1, -1, -1, 0x89, -1); you turn on
break. The -1's tell this function not to change the parameter at that 
location. The parameters appear like this,
  Rsconf(speed, flowctl, ucr, rsr, tsr, scr);

Later, JAG