[Coco] Accessing the serial port from Basic

[Arthur Flexser]

Because the CoCo does not have a built-in UART chip, you really can't do
bidirectional I/O from Basic.  It's just not fast enough to send and
receive individual bits serially, without ML routines handling the actual
bit-banging.  (If you only want to send, not receive, then PRINT#-2 will do
that.)  If you have an RS232 Pak, then Basic may be adequate for
bidirectional serial I/O.

A number of BBS programs had the ML running in the background with Basic
handling a lot of stuff.  You might be able to adapt such a program to do
what you want.

Art

On Thu, Nov 13, 2014 at 4:18 PM, Louis Ciotti <lciotti1 at gmail.com> wrote:

> Maybe my last post did not make it to the list, but I am looking for
> information on accessing  the onboard serial post from basic.  I have a
> simple project that will use rs232 for io a d  I want and want to play with
> the CoCo at the same time.   my quick run trough the RS manuals did not
> have anything jump out at me but I may have missed it.
>
> Thanks,
>
> Lou
>
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