21 Sep
2015
21 Sep
'15
8:47 a.m.
On 09/21/2015 01:45 AM, Erik Baigar wrote:
Hi All,
the 1039 is an interesting plotter I have got a 1038/1039 as well: There are two
big
PCBs inside - one is for the low level functions (essentally driving the servos
and
drawing lines using TTL implemented Bresenham) the second one contains the
computer (68xx based) which is handling the communication.
Hmm, that sounds like my 1076C. One board had a 68000 that
ran the plotter servos, the other was the "plot manager"
that had a big RAM buffer and sorted the plot vectors for
optimum speed. I think it mostly communicated with the host
computer and plotter main board by serial. Both boards had
68K processors.
Jon