Re: [Flashforth-devel] USB, flow-control, and linux

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

Hi,
Try Timer2 as a system clock.
For some reason the timer1 and 3 does not work properly
with the 2 millisecond timeout for sending USB characters.
I did some "improvements" in 5.0 to timer 1 and 3 for better accuracy.

I'll need to fix that.

BR Mikael

On 02/13/2014 03:09 AM, Randall Young wrote:
> Hi Mark,
>
> I'm seeing exactly the same thing, with the PIC18F14k50 build of FF 5.0.
>
> Some characters come down, well formed, then a delay,  I send a carriage
> return, and then more characters follow with zany formatting on the next
> line of my terminal session.
>
> FF 3.8 formats perfectly on the same setup, so I guess my terminal
> program(s) are ok.
>
> Just sharing, don't have a clue what's sideways.
>
> Best,
>
> Randy
>
>
>
> -----Original Message-----
> From: Mark Goldman [mailto:bit...@gm...]
> Sent: Wednesday, February 12, 2014 7:58 PM
> To: fla...@li...
> Subject: [Flashforth-devel] USB, flow-control, and linux
>
> Hello everyone,
>
> I am trying to run flashforth latest from GIT (appears to be 5.0, git commit
> 304e4cc23851c7ff5bd6360f4c8c16b880a0d51c)
>
> I have an old USB BitWhacker board (v1) with an 18f2550 on it, 20MHz
> crystal.
>
> I have made the adjustments to the frequency and divider to get USB working,
> however when I connect via /dev/ttyACM0, it appears to send some, but not
> all of the characters in the tx buffer.  If I hit enter a couple of times,
> or cause enough traffic, another chunk of the txbuffer comes down.
>
> I have setting hardware flow control, disabling idle_mode, and a couple of
> other things, but I don't seem to get proper expected behavior.
>
> Are there other things I should be doing to enable USB besides defining
> USB_CDC when assembling?
>
> I have tried searching the archives, but I didn't come up with anything.
>
> -mdg
>
> --
> Our problems are mostly behind us, now all we have to do is fight the
> solutions.
>
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