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Groups > comp.sys.atari.8bit > #1099 > unrolled thread
| Started by | pcuser45@yahoo.com |
|---|---|
| First post | 2014-06-19 14:55 -0700 |
| Last post | 2014-08-08 18:45 -0500 |
| Articles | 6 — 5 participants |
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Transfer too slow pcuser45@yahoo.com - 2014-06-19 14:55 -0700
Re: Transfer too slow Iain (Iain) - 2014-07-18 16:59 +0100
Re: Transfer too slow kpgpbhdw@kpgpbhdw.com - 2014-07-18 17:41 +0000
Re: Transfer too slow "The Doctor" <doctor@localhost.localdomain> - 2014-08-01 04:45 -0400
Re: Transfer too slow "The Doctor" <doctor@localhost.localdomain> - 2014-08-01 04:42 -0400
Re: Transfer too slow "Michael Current" <michael@mcurrent.name> - 2014-08-08 18:45 -0500
| From | pcuser45@yahoo.com |
|---|---|
| Date | 2014-06-19 14:55 -0700 |
| Subject | Transfer too slow |
| Message-ID | <a6560a0c-c18d-4d46-aeea-df20525eddba@googlegroups.com> |
I use the BobTerm 1.2x, that is connected to HyperTerminal for Windows. Baud speeds 19200, use Y-modem, file transfer speeds too slow! more likely 300cps... Why's that? Any suggestion? how to increase the speed?
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| From | Iain (Iain) |
|---|---|
| Date | 2014-07-18 16:59 +0100 |
| Message-ID | <memo.20140718165923.5688A@ioi.zen.co.uk> |
| In reply to | #1099 |
In article <a6560a0c-c18d-4d46-aeea-df20525eddba@googlegroups.com>, pcuser45@yahoo.com () wrote: > *From:* pcuser45@yahoo.com > *Date:* Thu, 19 Jun 2014 14:55:04 -0700 (PDT) > > I use the BobTerm 1.2x, that is connected to HyperTerminal for > Windows. Baud speeds 19200, use Y-modem, file transfer speeds too > slow! more likely 300cps... Why's that? Any suggestion? how to > increase the speed? 300cps = 300 * 8 = 24000bps so you're actualy getting more than you should out of a 19200 connection.
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| From | kpgpbhdw@kpgpbhdw.com |
|---|---|
| Date | 2014-07-18 17:41 +0000 |
| Message-ID | <slrnlsimqi.473.kpgpbhdw@localhost.localdomain> |
| In reply to | #1111 |
On Fri, 18 Jul 2014 16:59 +0100 (BST), Iain (Iain) <Iain> wrote: > In article <a6560a0c-c18d-4d46-aeea-df20525eddba@googlegroups.com>, > pcuser45@yahoo.com () wrote: > >> *From:* pcuser45@yahoo.com >> *Date:* Thu, 19 Jun 2014 14:55:04 -0700 (PDT) >> >> I use the BobTerm 1.2x, that is connected to HyperTerminal for >> Windows. Baud speeds 19200, use Y-modem, file transfer speeds too >> slow! more likely 300cps... Why's that? Any suggestion? how to >> increase the speed? > 300cps = 300 * 8 = 24000bps so you're actualy getting more than you > should out of a > 19200 connection. That's 2400 bps, not 24000.
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| From | "The Doctor" <doctor@localhost.localdomain> |
|---|---|
| Date | 2014-08-01 04:45 -0400 |
| Message-ID | <sxICv.182122$844.116336@fx14.iad> |
| In reply to | #1112 |
<kpgpbhdw@kpgpbhdw.com> wrote in message news:slrnlsimqi.473.kpgpbhdw@localhost.localdomain... > On Fri, 18 Jul 2014 16:59 +0100 (BST), Iain (Iain) <Iain> wrote: > > In article <a6560a0c-c18d-4d46-aeea-df20525eddba@googlegroups.com>, > > pcuser45@yahoo.com () wrote: > > > >> *From:* pcuser45@yahoo.com > >> *Date:* Thu, 19 Jun 2014 14:55:04 -0700 (PDT) > >> > >> I use the BobTerm 1.2x, that is connected to HyperTerminal for > >> Windows. Baud speeds 19200, use Y-modem, file transfer speeds too > >> slow! more likely 300cps... Why's that? Any suggestion? how to > >> increase the speed? Are you sure you're not just getting a lot of re-tries from corrupted packets? > > 300cps = 300 * 8 = 24000bps so you're actualy getting more than you > > should out of a > > 19200 connection. > > That's 2400 bps, not 24000. Actually RS-232 and SIO send single bytes in 10-bit packets. So it's actally 3000BPS. And even if he's using a newer MODEM that packages 100s, if not 1000s of bytes into a packet, it still has to convert it all into the same old 10-bit packet format when it hands it off to the Atari's SIO port.
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| From | "The Doctor" <doctor@localhost.localdomain> |
|---|---|
| Date | 2014-08-01 04:42 -0400 |
| Message-ID | <UuICv.87803$C87.87752@fx07.iad> |
| In reply to | #1099 |
Ah....keep your lines of text limited to 72 characters when posting on the USENET. The actual limit is 79 but you want to leave room for all of the ">" characters that get added in when replying. > I use the BobTerm 1.2x, that is connected to HyperTerminal for Windows. Baud speeds 19200, use Y-modem, file transfer speeds too slow! more likely 300cps... Why's that? Any suggestion? how to increase the speed? Try using Z-MODEM. Does anyone remember the name of that Z-MODEM Atari programme??? But remember that Y-MODEM was made back when it took several seconds to send a single kilo-byte. 19200BPS would give you 1920CPS if you were using no file transfer protocol at all so it would only take half a second for each packet to be sent/recieved. Thus Y-MODEM slows things down compared to Z-MODEM. But Y-MODEM should still give you much faster speeds than 300CPS.
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| From | "Michael Current" <michael@mcurrent.name> |
|---|---|
| Date | 2014-08-08 18:45 -0500 |
| Message-ID | <op.xkasaga4gaat7c@mdc2> |
| In reply to | #1122 |
On Fri, 01 Aug 2014 03:42:47 -0500, The Doctor <doctor@localhost.localdomain> wrote: > Try using Z-MODEM. Does anyone remember the name of that Z-MODEM Atari > programme??? You probably mean ATAR-Z-MODEM by Larry Black? Ice-T XE by Itay Chamiel can also do ZMODEM. -- Michael Current ~ michael@mcurrent.name ~ http://mcurrent.name/
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