Re: [N8VEM-S100:5539] SCC and Z80/8086 monitor

[Richard Cini <rich...@verizon.net>]

Roger ―

	For the serial configuration, P60 and P62, I followed the jumpers for a
3-wire configuration. Following the same convention of 1…8
(left-to-right), 0-1-0-1-1-0-0-1 (1=jumper, 0=none). The cable to the PC
is configured as NULL, with Rx<->Tx and CTS<->RTS (5-wires total,
including GND). The instructions on S100computers directly jumpers CTS and
RTS at the connector, leaving only three wires to the host device.

Rich

--
Rich Cini
Collector of Classic Computers
Build Master and lead engineer, Altair32 Emulator
http://www.classiccmp.org/cini
http://www.classiccmp.org/altair32




On 11/9/14, 5:29 PM, "norwestrzh via N8VEM-S100"
<n8vem...@googlegroups.com> wrote:

>Hi Rich --
>
>>> I have attached three files for the loopback program I¹m using
>(hopefully
>>> they get posted). It¹s a bit of a hack-job, clipping pieces of code
>from
>>> different places plus what¹s on S100-Computers. I¹m actually
>surprised it
>>> worked the first time.
>
>Got the code, and looking at it, I can't see any obvious problems.
>I've got to get back to doing some tests ... soon.
>
>But, for the sake of discussion, here are two hacks of my own.  The one
>called spray works quite well (just sends a repeating line of ASCII to
>a second serial device via the serial card.  The other (appropriately
>called "hack"), is a chopped down version of the "myio" code.  It
>doesn't work.
>
>I'm wondering what your jumpers around P60 and P62 look like?  I've got
>positions (from left to right, I will call them 1 through 8)
>1,2,3,5,6,7 jumpered with shorting blocks, and positions 4(bottom) and
>8(top) connected with a bit of wire wrap wire.  I'm wondering if
>positions 6 and 7 ought to be jumpered at the top of P62 (DCD of the
>82c30 pulled to ground) instead?
>
>Roger
>
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