So, I am attempting to connect my Z88 to my Mac (ancient MacBook Pro running OSX 11.7.4). I installed Eazylink v. 1.0.3 - and initially it ran fine (opened, offered me choices of serial port to connect to...), but it turned out that OSX no longer supported my USB->Serial port.
Having got the a new (FDTI based) USB->Serial port adapter, I attempted to start EazyLink on the mac, but it now doesn't appear to do anything after loading. The icon appears on the task bar, it doesn't show a window, and the only menu it displays is this:
I tried deleting it and pulling a fresh copy from the zip archive, but that had no effect. Does anyone have any suggestions?
To Fix EazyLink
In Finder type Shift+Ctrl+G (Go To Folder) and enter "~/Library/Preferences"
Now delete the file "com.z88.EazyLink2.plist"
When the system reboots EazyLink will behave as if it has never run and you'll see the application windows as usual.
To Use Y-Modem Batch Transfer Instead (3x Faster Than EazyLink)
My 'solution' is to ditch EazyLink altogether now that I have found a free multiplatform serial terminal app WindTerm:
https://github.com/kingToolbox/WindTerm ... /tag/2.5.0
Z88 Setup - Configuring XY-Modem
- If you're using OZ < 4.5:
Use the app XY-Modem which is bundled in a single 16KB ROM with ZipUtilities:
https://sourceforge.net/projects/z88/fi ... lications/
XY-Modem app has its own serial driver and will be usable at 38400 baud on any OZ version though you will need to set this baud in Panel (S).
In the XY-Modem popdown press Y for Y-Modem, K for 1K blocks, and C for CRC16. This only needs doing once as the settings persist.
- If you're using OZ > 4.5:
Use the Imp-Export app. It uses the same keyboard shortcuts as XY-Modem (described above).
- If you're using OZ 5.0:
Filer now has support for Y-Modem batch transfers using <>RB to receive a batch, and <>SB to send a batch (use Tab to select multiple files).
New Session, then pick the Serial tab at the top. Pick your serial device. Leave "Data" set to binary. Choose Serial Protocol, then configure Baud Rate to 38400 and Flow Control to RTS/CTS as shown. Finally, select X/Y/Z modem on the left, then set the drag & drop default protocol to YModem. Note the default Packet Size is 1024. The "Upload Command" here is irrelevant since we're not sending it to a remote shell. Now you can drag and drop files to the Z88 at much, much faster speeds than EazyLink To receive a batch of files from the Z88 use Tool > Transfer Binary > Receive YModem. You can select multiple files (with Tab) and send them using <>SB in OZ 5.0's Filer. On older OZ versions it's probably easiest to use ZipUtils to bundle your files into a single Zip file first before sending with XY-Modem.
Note that, as explained on the XY-Modem author's page,
As a final note, your mileage may vary using an FTDI serial adapter. I found that it only worked to transfer TO the Z88 and not the other way around. The same device worked fine on Windows. I reported the issue here but no fix was forthcoming:proper X- and Ymodem programs expect the sending side to be started first and then the receiving side. Else you have to wait up to ten seconds for the receiver to timeout and retry.
https://www.ftdicommunity.com/index.php ... 04#msg1904
I ended up buying a Keyspan adapter which, though more pricey, works fine every time. My total cost outlay would have been lower if I hadn't wasted £15 on the poorly supported FTDI one. Buy cheap, buy twice, as the old saying goes.
Annoyingly, from first initial impressions it doesn't look like my FTDI adapter works - I'm going to dig out some cables from the workbench in the next couple of days and do a loopback test, but just connecting it up and trying it doesn't look hopeful
https://cambridgez88.jira.com/wiki/spac ... rial+Cable
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IBM PC compatibles used a 9 pin DE-9 connector for their RS-232 serial port, and the pin out for that has become the common one for this type of connector.
But other computers and interfaces also used a 9 pin DE-9 connector for their RS-232 serial port, however each used a different pin-out. Sinclair even did this on the ZX Interface 1 for the ZX Spectrum in 1983.
TLDR - you have to use a cable made specifically for the Z88.
Code: Select all
9-pin DIN Connections: Z88 Modern Serial === ============= 1 Not connected 2 -- 3 3 -- 2 4 -- 8 5 -- 7 6 Not connected 7 -- 5 8 Not connected