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

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 Cini
Collector of Classic Computers
Build Master and lead engineer, Altair32 Emulator

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
>>> they get posted). It¹s a bit of a hack-job, clipping pieces of code
>>> 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?
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