<Teletype, so I'm pretty sure the Elf code is correct. I'm using 110
<bits per second, no parity, 8 data bits, one low (logic 0) start bit,
<and one high (logic 1) stop bit. It seems to like the data
TWO stop bits, tty did two. 8n2
<characters; I get consistent hex values for each character I send to the
<Elf, but they seem to usually be either shifted left or right by one
<bit, or they have the high bit set when it shouldn't be. It feels like
It may be the one stop bit missing or there are too many transistions going
on die to contact bounce (dirty commutator and poor signal conditioning on
the other end).
TTy reading 8 level tape is a continious stream of start, lsb...msb,stop
stop and repeat. the COSMAC in this case is just sitting there playing
catch. If the timing loop is off on the RX end you get garbage.
Allison
Received on Mon Mar 29 1999 - 22:27:15 BST