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February 2014

posted Jan 31, 2014, 4:00 AM by Dan Antohi   [ updated Mar 18, 2015, 10:58 AM]

20 Feb 2014

    Build 134 of the operating system, in conjunction with the server applet build 65, add two server commands: 'Reserve handle' and 'Open reserved handle', required for improving compatibility with legacy 'Interface 1' software in respect of 'PRINT' file creation on the server drive.
    Correct handling of zero-length files was also implemented.

Important notice:    

Always update ALL software components ( operating system, microcontroller firmware and server applet ) to the LATEST VERSION! Obsolete versions are not supported!


13 Feb 2014


    The operating system (current build 133) and microcontroller firmware (current build 5.33) were fine-tuned for better performance and compatibility with the original CPLD net-list (see below). Thus, after assigning a 128k (.Z80) file, using  the name extension '.Z' or option 'Z' (capital), the creation of the snapshot, when pressing the button for less than 0.5 seconds, does not fail, if the operating system cannot retrieve the value of the last OUT instruction to the memory bank control register #7FFD, but instead, a version 3.05 (.Z80) uncompressed 48k format is produced.


01 Feb 2014

    Thelatest operating system (build 132) and microcontroller firmware (build 5.32),besides containing some minor improvements, allows the creation of 128k (.Z80) snapshots. Unfortunately, reprogramming the interface’s CPLD, is also requiredfor this purpose.


    Thenecessary parallel JTAG cable is easy and inexpensive to build, following the officialXilinxschematic or a simplified, but still 100% compatible one. Theconfiguration files: IF1bis4bPld.jed,for version 4b and respectively IF1bis4cPld.jed,for version 4c boards, are available in the documents / hardware section.

    On older boards, not fitted with the pull-up resistor R29, this one will also have to be added.
    
    Users who don’t have the possibility to reprogram the interface’s CPLD, butwould still like to make use of the 128k snapshot facility, are welcome to sendthe interface back, for a free upgrade.


    Updatingthe operating system and microcontroller firmware is in any case highlyrecommended, as the interface is guaranteed to function normally with thecurrent and all future versions, even if the CPLD is not reprogrammed. 

 

The game browser/launcher and all relevant documents were amended accordingly.