Maybe I should have said that XON/XOFF is hit-and-miss depending on the 
hardware instead of 'unreliable' ;-) .

It's not always easy to know whether a particular setup will work or not; I've 
seen USB cables recommended that I couldn't get to work and, conversely, had no 
problems with others that supposedly did not.

FWIW, I normally also run at 19200bd but thought it would be safer to recommend 
9600 bd in this discussion since it usually works no matter what and makes very 
little difference in actual throughput.

Have you ever compared actual BASIC download speed at 9600 vs. 19200bd?

m

  ----- Original Message ----- 
  From: B 9 
  To: [email protected] 
  Sent: Tuesday, November 01, 2022 3:33 AM
  Subject: Re: [M100] Notoriously S.L.O.W BASIC posted - help speeding it up 
appreciated




  On Mon, Oct 31, 2022 at 12:11 AM MikeS <[email protected]> wrote:
    Reliable maximum download speeds on the M100 without handshaking are around:
    BASIC: 600 bd to allow time to tokenize and store.
    TERM: 2400 because of the slow LCD scrolling.
    TEXT: 9600 since it does not display while loading.


  That sounds right when the other end does not have hardware-level XON/XOFF, 
but it should be much faster with a better UART on the PC, like an OX16C950 or 
a chip from FTDI or MOXA. As soon as the M100 sends XOFF, the UART chip in the 
serial port automatically stops the flow of data. No lag, no lost characters. I 
connect using 19,200 bps in BASIC (LOAD "COM:98N1ENN" ) and it works perfectly 
when I use certain USB serial adapters (and not others). 



  Has anyone with a Model 100 tried using a serial card or USB adapter that 
supports "automated in-band flow-control"? Do you see the same high-speed 
connection as I do on my Tandy 200?



  —b9

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