The Fusion of Last Century’s and Modern Technology

The Fusion of Last Century’s and The Fusion of Last Century’s and Modern TechnologyModern Technology

The CasLink/CasLink2 Project by Alexey PodrezovThe CasLink/CasLink2 Project by Alexey Podrezov

• The BeginningThe Beginning• The Source of InspirationThe Source of Inspiration• The Proud OwnerThe Proud Owner• No Disk Drive… Solution NeededNo Disk Drive… Solution Needed• 1999 – The First Caslink1999 – The First Caslink• 2008 – Caslink22008 – Caslink2• Live DemoLive Demo• Plans for Caslink3Plans for Caslink3• CreditsCredits

AgendaAgenda

The BeginningThe Beginning

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KYBTKYBTA set of computers, A set of computers, usually connected usually connected to the same to the same network and used network and used for educational for educational purposes.purposes.

The Source of InspirationThe Source of Inspiration

The Proud OwnerThe Proud Owner

No Disk Drive… Solution NeededNo Disk Drive… Solution Needed


++ ??


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1999 – The First Caslink1999 – The First Caslink

1999 – The First Caslink1999 – The First CaslinkSupported input formats:Supported input formats:

• BAS - tokenized basic programsBAS - tokenized basic programs• BAS/DAT - detokenized basic programs (ASCII BAS/DAT - detokenized basic programs (ASCII format)format)• BIN - binary images of ROM cartridges with BIN - binary images of ROM cartridges with startup codestartup code• ROM - images of ROM cartridgesROM - images of ROM cartridges

• BIN - 8/16/24 kbBIN - 8/16/24 kb• ROM - 8/16/24/32 kbROM - 8/16/24/32 kb

Supported output formats:Supported output formats:

• WAV – 11025 Hz, 8 bit, monoWAV – 11025 Hz, 8 bit, mono

Single file or multi-file mode (up to 10 files)Single file or multi-file mode (up to 10 files)

• 1200 baud rate1200 baud rate• 2400 baud rate2400 baud rate


BIT=0BIT=0

1200 baud:1200 baud:0 = 1200 Hz0 = 1200 Hz1 = 2400 Hz1 = 2400 Hz



AmplitudAmplitud

ee

TimeTime


BIT=1BIT=1




AmplitudAmplitud

ee

TimeTime


Byte Representation in FSK EncodingByte Representation in FSK Encoding

START_BITSTART_BIT, BIT0, BIT1, BIT2, BIT3, BIT4, BIT5, BIT6, BIT7, , BIT0, BIT1, BIT2, BIT3, BIT4, BIT5, BIT6, BIT7, STOP_BITSTOP_BIT, , STOP_BITSTOP_BIT

Example for byte with value 0x00 (zero):Example for byte with value 0x00 (zero):

11 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 11

Example for byte with value 0xFF (255):Example for byte with value 0xFF (255):

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 11

1999 – The First Caslink1999 – The First Caslink0000h0000h

4000h4000h

8000h8000h

F380hF380h

FFFFhFFFFh

ROM BIOSROM BIOS

ROM BASICROM BASIC

RAMRAM

SYSVARSYSVAR

8/16/24/328/16/24/32

ROM/BINROM/BIN

LOADERLOADER

BASIC PCODEBASIC PCODE

8/16/24 BIN8/16/24 BIN


4000h4000h

8000h8000h

F380hF380h

FFFFhFFFFh SYSVARSYSVAR

8/16/24 BIN8/16/24 BIN

LOADERLOADER

0000h0000h

4000h4000h

8000h8000h

F380hF380h


ROM BIOSROM BIOS

ROM BASICROM BASIC

ROM BIOSROM BIOS

8/16/24 BIN8/16/24 BIN

LOADERLOADER


4000h4000h

8000h8000h

F380hF380h


8/16/24 BIN8/16/24 BIN

LOADERLOADER

SYSVAR

0000h0000h

4000h4000h

8000h8000h

F380hF380h

FFFFhFFFFh

8/16/24 BIN8/16/24 BIN

LOADERLOADER

BLOAD nextBLOAD next

ROM BIOSROM BIOS

ROM BASICROM BASIC 8/16/24 BIN8/16/24 BIN

ROM BIOSROM BIOS

8-16kb ROM8-16kb ROM


4000h4000h

8000h8000h

F380hF380h



LOADERLOADER

0000h0000h

4000h4000h

8000h8000h

F380hF380h


LOADERLOADER


RAMRAM

RAMRAM

RAMRAM



4000h4000h

8000h8000h

F380hF380h



LOADERLOADER

0000h0000h

4000h4000h

8000h8000h

F380hF380h


LOADERLOADER


RAMRAM

RAMRAM RAMRAM

ROM part 1ROM part 1


4000h4000h

8000h8000h

F380hF380h

FFFFhFFFFh


LOADER 1LOADER 1

0000h0000h

4000h4000h

8000h8000h

F380hF380h


RAMRAM

RAMRAM

RAMRAM

BLOAD nextBLOAD next


LOADER 1LOADER 1



4000h4000h

8000h8000h

F380hF380h

FFFFhFFFFh


LOADER 2LOADER 2

0000h0000h

4000h4000h

8000h8000h

F380hF380h


LOADER 2LOADER 2


RAMRAM RAMRAM

SYSVARSYSVAR


2008 – Caslink22008 – Caslink2

2008 – Caslink22008 – Caslink2Supported input formats:Supported input formats:

• BAS – tokenized or detokenized basic programs (ASCII BAS – tokenized or detokenized basic programs (ASCII format)format)• BIN - binary images of ROM cartridges with startup codeBIN - binary images of ROM cartridges with startup code• ROM - images of ROM cartridgesROM - images of ROM cartridges• SCR - screenshotsSCR - screenshots

• BIN - 8/16/24/BIN - 8/16/24/3232 kb kb

• ROM - 8/16/24/32 kbROM - 8/16/24/32 kb

• ROM/BIN CRC checkerROM/BIN CRC checker

• PreloaderPreloaderSupported output formats:Supported output formats:

• WAV – 11025 Hz, 8 bit, monoWAV – 11025 Hz, 8 bit, mono• WAV – 44100 Hz, 16 bit, stereoWAV – 44100 Hz, 16 bit, stereo• MP3 – 192, 256 and 320 kbps (LAME MP3 MP3 – 192, 256 and 320 kbps (LAME MP3 codec)codec)

• 1200 baud rate1200 baud rate



• Inverted waveformInverted waveform

Single file or multi-file mode (up to Single file or multi-file mode (up to 1515 files)files)

TimeTime

2008 – Caslink22008 – Caslink2

AmplitudAmplitud

ee

Normal Normal

WaveformWaveformInverted Inverted

WaveformWaveform

TimeTime

AmplitudAmplitud

ee

Live DemoLive DemoMSX 2 Compatible MSX 2 Compatible

ComputerComputerApple iPOD Nano / PCApple iPOD Nano / PC

Plans for Caslink3Plans for Caslink3

• Bi-directional support (reading and decoding files from Bi-directional support (reading and decoding files from MSX)MSX)• GUI (frontend for Windows 7/8/8.1)GUI (frontend for Windows 7/8/8.1)• Faster upload? (reference to O.T.L.A. Project; 12000 Faster upload? (reference to O.T.L.A. Project; 12000 baud?) baud?) • Compression? (reference to Stanislav Borutsky aka Compression? (reference to Stanislav Borutsky aka CAX)CAX)• ROM patching? (reference to Stanislav Borutsky aka ROM patching? (reference to Stanislav Borutsky aka CAX)CAX)• Upload progress indicatorUpload progress indicator• 128kb ROM upload (if even possible)128kb ROM upload (if even possible)• More…?More…?

CreditsCredits

Egor VoznessenskiyEgor Voznessenskiy

Gennadiy KurapovGennadiy Kurapov

Sergey KirovSergey Kirov

Ekaterina KirovaEkaterina Kirova

Mikhail Volkov Mikhail Volkov

Ahti Soilamaa Ahti Soilamaa

Sean Young (not the actor)Sean Young (not the actor)

Arnaud (aka The File-Arnaud (aka The File-

Hunter)Hunter)

IgorX (Mr. Unknown)IgorX (Mr. Unknown)

Timo Soilamaa (aka Timo Soilamaa (aka

Nyyrikki)Nyyrikki)

Saku Taipale (aka STT)Saku Taipale (aka STT)

Questions ?Questions [email protected]

http://www.podrezov.com

The Fusion of Last Century’s and Modern Technology

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