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Offline danbeaver

Re: Transfer files
« on: May 15, 2014, 12:06:06 AM »
Parnet = 1 byte at a time, Sernet = 1 bit at a time.
 

Offline danbeaver

Re: Transfer files
« Reply #1 on: May 15, 2014, 01:15:10 AM »
Hmm, how fast is one bit at a time versus 8 bits at a time.  I'm sorry the math is just too difficult.  Anyone got a calculator?
 

Offline danbeaver

Re: Transfer files
« Reply #2 on: May 15, 2014, 06:08:02 AM »
Quote from: Darrin;764457
If the data transfer speed of the serial port is more than 8 times faster than the parallel port then...

Although in a closed loop, tightly controlled artificial environment the Amiga serial Theoretical Throughput is 115,200, one cannot forget the parity, stop bits and handshake requirements of the Amiga serial port which give it a maximum usable speed of about 57,600 bits per second vs the standard parallel port of 12,000,000 bits per sec (12,000 kbits per second).  The add-on Zorro cards were capable of more speed, but only a Silver Surfer Clockport adapter and Surf Squirrel were really available for the A1200.  The parallel port had 4 additional lines for control/handshaking and does not use the data lines for this purpose.  Hence, Darrin, if you divide 12,000,000 by 57,000 you end up with a wee bit more that an "8 times increase.". If one uses a faster processor and or a better serial port and parallel port card, you would in theory be pitted against a EPP port that can transfer at 2 Mbps.  

Again, I'm real bad with math; anyone got a calculator?
 

Offline danbeaver

Re: Transfer files
« Reply #3 on: May 15, 2014, 07:00:35 PM »
Those who can, do.

Those who can't, moderate Amibay, er... I mean teach.   ;)

Those who can't teach, ask, "Do you want fries with that?"
 

Offline danbeaver

Re: Transfer files
« Reply #4 on: May 15, 2014, 07:13:15 PM »
More work to making fries than flipping burgers.

I have a diskless server with 5 TB of files on my home network and get to them with AmiFTP although I made a full CD of programs needed to get almost any Amiga online and BoingBagged to full working status (Poseidon, Miami, Picasso96, IBrowse, DOpus, MUI, etc.).  But a USB solution (I'm loving the Mini-Thylacine 4 port device) sure does wonders.
 

Offline danbeaver

Re: Transfer files
« Reply #5 on: May 15, 2014, 08:16:36 PM »
Genny_Flick makes them with smd components and using Poseidon all you need is the thylacine.device driver.  The original boards came with its own USB stack that works OK for un-acellerated  Amigas.
 

Offline danbeaver

Re: Transfer files
« Reply #6 on: May 16, 2014, 12:10:09 AM »
I've read that the USB stack in OS4.1 is based on the thylacine stack.
 

Offline danbeaver

Re: Transfer files
« Reply #7 on: May 21, 2014, 04:28:22 AM »
Well that is one opinion...

In the '80's I would have used Quarterback to make a backup of the data and then have restored it to the other Amiga.  By the end of that decade, Sernet or Parnet were available.  By the '90s networking with an AppleTalk network or Ethernet were available and expensive.  Then came the ability to burn CDs and we were back to SneakerNet large amounts of data cheaply.  For a once-in-a-blue moon deal, just transferring the hard drive from one to the other if the A2000 has an IDE interface.  IF you have a CF/SD card reader then that is an option, but these are now rare.  USB will work if you have the funds to buy one.  It all depend on the hardware you have and the cash to spend.