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resystor · 23rd September 2008, 08:25 PM

HI I want to send some data from my z80 micro pc to my home pc. I want to save this on my A: drive floppy. Can I do it? What is the command from ms-dos to save on A: drive? I'm sending the data via an 8251 USART to serial port. Appreciate any help.

**Nigel Goodwin** · 23rd September 2008, 08:34 PM

What software are you running on the PC?, just set that software to save to the A: drive.

resystor · 24th September 2008, 05:42 PM

no software is running. just port to port communication. I need to know the HEX code that will run the A: drive and save

ericgibbs · 24th September 2008, 05:45 PM

hi,

You must have some comms software running.

Is all you have the DOS prompt?

Do you plan enter the hex code in using Debug.?

EDIT: At least get a Basic language, free GWBasic

http://www.codepedia.com/1/gwbasic

or

http://www.freewebs.com/qbasicsite/index.htm

Pommie · 25th September 2008, 01:52 AM

If it's a dos machine then you could do "copy com1 a:\filename.txt". I can't remember how to terminate the transmission. I think it may be terminated when a ctrl-z is received.

Mike.

**Nigel Goodwin** · 25th September 2008, 09:07 AM

Quote:

Originally Posted by Pommie

If it's a dos machine then you could do "copy com1 a:\filename.txt". I can't remember how to terminate the transmission. I think it may be terminated when a ctrl-z is received.

Mike.

I think you're probably correct, but don't you have to set up the parameters for COM1 first?.

Far easier to use a terminal program, and you should be able to download plenty of free examples.

Pommie · 25th September 2008, 09:37 AM

You can see the settings for com1 by doing "MODE COM1" and change it by doing "MODE COM1: baud=9600 parity=N data=8 stop=1" - without the quotes.

Note that this is only good for text files. You couldn't use this method to transfer a terminal program.

One day this may be the only way someone might get an old text file of a floppy.

Mike.

ericgibbs · 25th September 2008, 09:44 AM

Quote:

Originally Posted by Pommie

You can see the settings for com1 by doing "MODE COM1" and change it by doing "MODE COM1: baud=9600 parity=N data=8 stop=1" - without the quotes.

Note that this is only good for text files. You couldn't use this method to transfer a terminal program.

One day this may be the only way someone might get an old text file of a floppy.

Mike.

hi Mike,
I cannot understand why he dosnt use a free copy of GW or QB basic.?

It would give him all the port and disk control he needs.?

**Nigel Goodwin** · 25th September 2008, 10:01 AM

Quote:

Originally Posted by Pommie

You can see the settings for com1 by doing "MODE COM1" and change it by doing "MODE COM1: baud=9600 parity=N data=8 stop=1" - without the quotes.

Man, this takes you back!

Pommie · 25th September 2008, 10:10 AM

Quote:

Originally Posted by Nigel Goodwin

Man, this takes you back!

More like showing our age.

Mike.

Pommie · 25th September 2008, 10:12 AM

Quote:

Originally Posted by ericgibbs

hi Mike,
I cannot understand why he dosnt use a free copy of GW or QB basic.?

It would give him all the port and disk control he needs.?

He may be trying to get a copy of GW or QB on the machine and only has a dos disk. Unfortunately, the above wont work as it's only good for text files.

Mike.

ericgibbs · 25th September 2008, 10:21 AM

Quote:

Originally Posted by Pommie

He may be trying to get a copy of GW or QB on the machine and only has a dos disk. Unfortunately, the above wont work as it's only good for text files.

Mike.

He could use the assembler in debug to produce a com file.

He has asked for the 'hex' file for the comms.!

Torben · 25th September 2008, 11:18 AM

Quote:

Originally Posted by Pommie

You can see the settings for com1 by doing "MODE COM1" and change it by doing "MODE COM1: baud=9600 parity=N data=8 stop=1" - without the quotes.

Note that this is only good for text files. You couldn't use this method to transfer a terminal program.

One day this may be the only way someone might get an old text file of a floppy.

Mike.

That frightens me. Lately I've been noticing that computers don't have floppy drives any more, and I *really* need to get my floppies out of storage and use one of my old machines to try to save as much as I can.

Back to the topic: I thought the OP was asking how to send a file to the PC from the Z80 and cause it to be saved to the a: drive, without any comms software running on the PC. I am aware of no way to do that; there must be some software running on the PC to accept the connection, read the data, and write it out to the disc.

I could be missing something though.

Torben

**Nigel Goodwin** · 25th September 2008, 12:09 PM

Quote:

Originally Posted by Torben

That frightens me. Lately I've been noticing that computers don't have floppy drives any more, and I *really* need to get my floppies out of storage and use one of my old machines to try to save as much as I can.

It might be worth you buying a USB floppy drive, common practice for laptop owners for many years.

Quote:

Back to the topic: I thought the OP was asking how to send a file to the PC from the Z80 and cause it to be saved to the a: drive, without any comms software running on the PC. I am aware of no way to do that; there must be some software running on the PC to accept the connection, read the data, and write it out to the disc.

As Pommie says, you can use DOS/BIOS commands to spool text from the serial port to a file - but you can't do it with binary files.

But all you need is a simple DOS terminal program, they used to be provided with all modems, and I'm sure there are loads you can download for free.

futz · 25th September 2008, 03:42 PM

Quote:

Originally Posted by Torben

That frightens me. Lately I've been noticing that computers don't have floppy drives any more, and I *really* need to get my floppies out of storage and use one of my old machines to try to save as much as I can.

Don't be frightened. Every mainboard still comes with a floppy connector. I regularly build machines (for other people) without floppy drives. I have a drive on the shelf with cable that I plug in and run hanging out the side temporarily for whenever I need a floppy in a machine. When done, unplug, change the BIOS setting back and put the side cover back on. 99% of users do not need a floppy drive, but I do occasionally.

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23rd September 2008, 08:25 PM	#1
resystor	Upload to my pc HI I want to send some data from my z80 micro pc to my home pc. I want to save this on my A: drive floppy. Can I do it? What is the command from ms-dos to save on A: drive? I'm sending the data via an 8251 USART to serial port. Appreciate any help.

23rd September 2008, 08:34 PM	#2
Nigel Goodwin	What software are you running on the PC?, just set that software to save to the A: drive. __________________ PIC programmer software, and PIC Tutorials at: http://www.winpicprog.co.uk

24th September 2008, 05:42 PM	#3
resystor	no software is running. just port to port communication. I need to know the HEX code that will run the A: drive and save

24th September 2008, 05:45 PM	#4
ericgibbs	hi, You must have some comms software running. Is all you have the DOS prompt? Do you plan enter the hex code in using Debug.? EDIT: At least get a Basic language, free GWBasic http://www.codepedia.com/1/gwbasic or http://www.freewebs.com/qbasicsite/index.htm __________________ Eric " Good enough is Perfect " I will NOT answer PM's requesting technical help, please use the Forum PIC tutorials: Nigel's www.winpicprog.co.uk/ Bill's: www.blueroomelectronics.com/ Last edited by ericgibbs; 24th September 2008 at 05:54 PM.

25th September 2008, 01:52 AM	#5
Pommie	If it's a dos machine then you could do "copy com1 a:\filename.txt". I can't remember how to terminate the transmission. I think it may be terminated when a ctrl-z is received. Mike.

25th September 2008, 09:37 AM	#7
Pommie	You can see the settings for com1 by doing "MODE COM1" and change it by doing "MODE COM1: baud=9600 parity=N data=8 stop=1" - without the quotes. Note that this is only good for text files. You couldn't use this method to transfer a terminal program. One day this may be the only way someone might get an old text file of a floppy. Mike.