65 lines
1.4 KiB
HTML
65 lines
1.4 KiB
HTML
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<html>
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<head>
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<link href="style.css" rel="stylesheet" type="text/css" />
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<title>osmocom-analog</title>
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</head>
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<body>
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<center><table><tr><td>
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<h2><center>Das Datenklo</center></h2>
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<center><img src="datenklo.jpg"/></center>
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<ul>
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<li><a href="#history">History</a>
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<li><a href="#howitworks">How it works</a>
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<li><a href="#terminal">Setup of a terminal</a>
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</ul>
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<p class="toppic">
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<a name="history"></a>
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History
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</p>
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<p>
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geschichte
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name
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was kann der chip
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TBD
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</p>
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<center><img src="datenklo2.jpg"/></center>
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<p class="toppic">
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<a name="howitworks"></a>
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How it works
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</p>
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<p>
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The program 'datenklo' is an emulator for the original "CCC modem", a building instruction released by the Chaos Computer Club in 1985.
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The heart of this software is the AM7911 modem chip emulation.
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It modulates digital levels to FSK tones and demodulates FSK tones to digital levels.
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A software UART (serial transceiver) converts characters (bytes) into levels and leves into bytes.
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The modem chip emulation is linked to sound card via ALSA driver.
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The UART is linked to a tty emulation.
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The tty emulation uses FUSE, so that the linux kernel provides a virtual serial interface. (/dev/ttyDATENKLO0 by default)
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</p>
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<p>
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* TBD *
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</p>
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<p class="toppic">
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<a name="terminal"></a>
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Setup of a terminal
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</p>
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<p>
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* TBD *
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</p>
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<hr><center>[<a href="index.html">Back to main page</a>]</center><hr>
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</td></tr></table></center>
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</body>
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</html>
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