Re: [Flashforth-devel] Sending Forth files with macOS over USB

[Mikael N. <mik...@fl...>]

HI.

ff-shell.py uses a line by line flow control.
It waits to receive a new-line character before sending the next line.
I would have thought that would work with any OS.

I will add options to ff-shell.py for intercharacter delay and 
end-of-line delay.
Possible also a character by character flow control.

BR Mikael

On 2019-11-23 14:23, Tristan Williams wrote:
> Hello,
> 
> I am using a PIC18F14K50 with FlashForth 5 connecting over USB on
> macOS (10.11 & 10.14). I can enter Forth interactively using both 
> Minicom
> and ff-shell.py. However, with my setup, neither Minicom nor
> ff-shell.py is able to successfully send a file of forth source. The
> PIC appears to be overwhelmed by a torrent of Forth. I did wonder
> whether the PIC was making a value judgement about quality of my code,
> but think it more likely that my setup has a flow control
> problem. Both Minicom and ff-shell.py were setup to use CRTSCTS
> (though changing to XON/XOFF made no difference) which I think is
> correct for a USB CDC serial connection. Running Minicom and
> ff-shell.py interactively and checking the USB CDC serial port
> settings with stty whilst they are running showed that neither CRTSCTS
> nor XON/XOFF appeared to be set. I do not know if that is normal for
> macOS with CDC.
> 
> If anyone is using macOS and is able to send files via Minicom or
> ff-shell.py over USB I would appreciate any pointers as to where I am
> going wrong.
> 
> I've written a small transfer program for my setup, so I can send
> Forth files and am enjoying using FlashForth greatly. However, I am
> new to USB/CDC and would like to know what is wrong with my setup and
> how to fix it (if possible!) so I can use the existing shells.  All
> help gratefully received.
> 
> Thank you!
> 
> Tristan
> 
> 
> 
> 
> 
> 
> 
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-- 
--
Mikael