My experience is that internal SER cards for PC tend to work reliably at
up to 230 kBaud without handshake, while most USB-SER coverters don't.
Usually you notice it only during long file transfers.
Am 21.01.2018 um 00:11 schrieb Dave Park via Ql-Users:
> Once you're up into 230k territory, the
Once you're up into 230k territory, the quality of the cable starts making
an extraordinary difference, even if there is UART support for that speed.
On Sat, Jan 20, 2018 at 3:25 PM, Peter Graf via Ql-Users <
ql-users@lists.q-v-d.com> wrote:
> Hi Fabrizio,
>
> > configuring the driver in Win10
Hi Fabrizio,
> configuring the driver in Win10 there are available different predefined
> speeds, including 460800, so I assume it should work at least from PC side.
I know, but that tells nothing about what the adaptor can physically
hanlde. I have a lot of experience with that, unfortunately.
Peter,
configuring the driver in Win10 there are available different predefined
speeds, including 460800, so I assume it should work at least from PC side.
Ciao
On 20/01/2018 18:00, Peter Graf wrote:
Hi Fabrizio,
Now playing with SMSQ/E sources, according Wolfgang suggestion (Thanks)
I'm just happy that 230k has been shown to be physically possible on the
Q68 hardware. When mine comes, I'll test it with my Q68 wifi/bluetooth
dongle. If it works, I might make that the default configuration. I mean,
it is literally 2x as fast.
My serial wifi dongle and GPIO card (details on the
Hi Fabrizio,
> Now playing with SMSQ/E sources, according Wolfgang suggestion (Thanks)
How do you come to the idea your SER-USB adaptor supports 460 kBaud,
even PC to PC?
The required RS-232 line drivers are very seldom!
Peter
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So far, I used 230400 in a reliable way (not extensively tested...), i
did not notice anything wrong, moreover this speed (230400) it is a
reasonable compromise vs response time expected, 115200 is a bit slow
for my taste. The setting I used on PC side was 8bit data and no flow
control. Sernet
NB : you would also have to add a new prescale value at label prescale
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Hi Fabrizio,
you can find that in smsq_q68_spp_ser_asm.
There , if you want, you can extend the little table at label "bauds"
beyond 230400. Also change the value of "moveq #8,d3" just above the
label bd_lp, probably to 9 if you only add one more value.
HTH
Wolfgang.
Hi all,
I have
On 20/01/2018 13:04, Derek via Ql-Users wrote:
<> Not tried Atari ST QL emulator yet.
The QVME graphics card used with the ST has a fast serial port. I got
the best speeds with that. 230k, I believe, between my Mega ST + QVME
and a PC (in the days when PCs had real serial ports).
Per
<>
Hi Fabrizio,
> Finally what is the theoretically max ser speed of the Q68 is?
460 kBaud for the hardware itself (UART and RS-232 driver). But for the
overall system, max. 115 kBaud is specified in the Manual. Beyond that
it has not been sufficiently tested.
Please note that many USB-SER
Hi all,
I have (finally) found some time to check Sernet connection between my
Q68 and QPC under Win10 (Mac Book using Parallel). To get COM1 I use a
USB-> RS232 converter
As expected Sernet works perfectly until 230400 Baud (19200*12), to get
more speed I tried 460800 (19200*24) but I got
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