I will be using an actual papertape/teletype On Fri, Jul 7, 2023 at 10:39 AM Duane Craps via vcf-midatlantic < vcf-midatlantic@lists.vcfed.org> wrote:
Just set the sender to 1.5 or 2 stop bits. That will cover for minor speed differences. TTYs sent 1.5 stop bits for that reason.
On 7/6/2023 10:15 PM, David Gesswein via vcf-midatlantic wrote:
Note if your loading a FOCAL program if whatever is sending baudrate is faster than the PDP-8 transmit baud rate the loading will fail after a while with buffer overrun. I've adjusted the pot on the TTY clock card to make it load from a teletype. I'm talking if your using a PC that transmits exactly 110 baud and the PDP-8 actually transmits at 108 baud you have problems. Loading the FOCAL tape itself doesn't have this problem.
Note that some versions of the FOCAL tape have two sections so without reader run if you don't hit continue quick enough after the first halt you will not load the initial dialog.
On Thu, Jul 06, 2023 at 09:45:15PM -0400, Bill Degnan via vcf-midatlantic wrote:
Saturday at the museum we're going to try to load FOCAL from papertape into the PDP-8 system. 12 noon to ? All are welcome. Also going to document system in detail, measure voltages, etc. Kennettclassic.com Bill
-- DuaneCraps sdɐɹɔ ǝuɐnp