ZX-Term*80

[dessony]

ZX-TERM*80 Version 2.5

I will upload a document for this software.

Dessony

[siggi]

Information could also be found on Fred Nachbaur's site (including documentation):
http://www.pictureviewerpro.com/hosting/zx81/fredn.htm

Several years ago I patched this program to work with the SIO of my web-server (instead of using a 8251 UART chip). Terminal mode worked well, but the XMODEM filetransfer did not work ...

Siggi

[dessony]

Siggi and somebody else,

How do you work around this kind of the problem? Can you share a program patch or a program with us?

For a historical interest of the original document for this certain program, I will upload the file here. There are some detailed information that Fred N.'s web document file clearly doesn't explain ("fractioned document").

Dessony

[siggi]

Here Wilf describes an 8251-Uart hardware, which could be used by the ZX-Term*80 program:
http://www.user.dccnet.com/wrigter/inde ... serial.htm

If your browser does not show the schema correctly: set manually the "text coding" to "western". Then you will get this picture:

Code: Select all

             TS 2050 MODEM COMPATIBLE SERIAL I/F
              --------------------------------

                 74HC138               8251
+5V___________________________________________________
                _______    |         _______    |    +| 10uF
               |    VCC|16_|        |    VCC|26_|    ===
A5____________1|A      |            |       |         |
A6____________2|B    Y3|12________11|CS     |         0V
A7____________3|C      |    D0 ___27|D0     |                     DB25/9
A3____________4|E      |    D1 ___28|D1     |      74HC14
IORQ__________5|E      |    D2 ____1|D2  TXD|19__10_|\_9__[100]_____ 2/2
M1____________6|E      |    D3 ____2|D      |       |/                TX
               |       |    D4 ____5|D4     |
               |       |    D5 ____6|D5     |      74HC14
               |_______|    D6 ____7|D6  RXD|3___5__/|_6__[10K]______3/3
                     8|     D7 ____8|D7     |       \|           |    RX
                     0V             |       |                   [1M]
RD________________________________13|RD     |                    |____7/5
WR________________________________10|WR     |                         GND
A2________________________________12|C/D    |
CLK_______________________________20|CLK    |
                                    |       |
RESET________1_|\_2_______________21|RST    |
               |/                   |       |
           * 74HC14                 |       |
                                    |    DTR|24___ not used
       _______________              |       |
5V__16|   74HC4060  Q5|5---o     _25|RXC    |
0V___8|               |      \__|__9|TXC    |      74HC14
  |_12|RST          Q8|14--o        |    RTS|23___3_|\_4__[100]______4/7
      |_______________|   ** S1     |       |       |/               RTS
       10|         |11              |       |
         |--[10M]--|                |    CTS|17__13_/|_12_[10K]______5/8
         |         | XTAL =         |       |       \|           |   CTS
         |--]||[---| 4.9512MHz      |       |     74HC14        [1M]
         |         |                |       |                    |
     33 ===       === 33            |       |                    0V
0V_______|_________|_______________4|VSS    |      74HC14
                                    |    DSR|22__11_/|_10_[10K]______6/6
                                    |_______|       \|           |   DSR
                                                                [1M]
                                                                 |
                                                                 0V
 * 74HC14 PIN 14=5V PIN 7=0V 
** S1 for BAUD rate selection
   Q5=4915200Hz\32 divided internally by 16 or 64 = 9600/2400 baud      
   Q8=4915200Hz\256 divided internally by 16 or 64 = 1200/300 baud                      

Siggi

[dessony]

Siggi,

Thanks, I will build this exact circuit very soon. It certainly will be on a breadboard. I have an AMP connector bearing 5650945-5 1103. I am waiting on a crystal.

I also have and build an AWC RS-I/II Serial Interface Adapter. It is a RS232 module kit with its MAX232 chip installed. Check their website. http://www.awce.com/rs1.htm

As for the ZX-Term*80, this program originally was on a tape cassette. I transferred the program to a disk as a ZXT80.P.

Dessony

[siggi]

For a historical interest of the original document for this certain program, I will upload the file here. There are some detailed information that Fred N.'s web document file clearly doesn't explain ("fractioned document").

Dessony

Hi Dessony
could you please upload that file?

Siggi

[dessony]

I counted the pages of the copy of the original book. The book has 51 pages which includes its front cover. I need to go to a FedEx Office to use their auto-feeding scanner. 300 dpi. Expect a pretty large file coming from the certain book! WOW! Better use a PM instead of depositing the file here.

Thank you very much.

Dessony

[1024MAK]

The simplest way, is to upload the file to a file hosting site (Google Drive, Mega, DropBox or similar) then post a link to it here.

More info on file sharing sites here.

Mark

[GCHarder]

Converting to 2bit B&W gif image will greatly reduce the size usually without compromiseing legibility.

Regards;

Greg

[dessony]

Here is the document file which I promised Siggi to upload it here! The original document was printed on a North American paper size which is 8 1/2 in. x 11 in. Or 21.5 cm x 27.9 cm to the rest of the world. However, it's already scanned into the .PDF format.

https://www.dropbox.com/s/nasxmqqldlg8o ... 0.pdf?dl=0