- Timestamp:
- Nov 14, 2010, 3:36:42 PM (13 years ago)
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en/development-projects.shtm
r184 r215 10 10 --><!--#set var="next_title" value="What's new?" 11 11 --> 12 <title> technikum29 - <!--#echo var="title" --></title>12 <title>Technikum29 - <!--#echo var="title" --></title> 13 13 14 14 <!--#include virtual="/en/inc/head.inc.shtm" --> … … 31 31 <!--<li>punch card I/O with AVR ATmega microcontrollers via RS232 to computers, 32 32 Qt platform independent processing, with various hardware</li>--> 33 <li>An alex printer interface to the Bull Gamma 10 computer (uC based)</li>33 <li>Anelex printer interface to the Bull Gamma 10 computer (uC based)</li> 34 34 </ul> 35 35 <br/> … … 65 65 framework of the Linux 2.6 kernel series to program a user space driver in the programming 66 66 language C with a little effort compared to a real kernel space driver.</p> 67 67 <div class="desc-right"> 68 <img src="/shared/photos/rechnertechnik/facit4070.jpg" width="192" height="313" alt="Photography of the paper tape puncher FACIT 4070" /> 69 <p class="bildtext" style="width:192px;">The legendary puncher <b>FACIT 4070</b></p> 70 </div> 68 71 <p>The parallel port consists of three 8-bit hardware registers: a bidirectional data 69 72 register, a control register and a signal register. Since paper tapes are made of … … 72 75 implement a interrupt (device cycle) driven communication, since the status register 73 76 features one interrupt enabled bit (strobe). Our devices punch at 80 chars/sec and read in 74 250 chars/sec, so even older PCs can easily run the driver programs.< /p>77 250 chars/sec, so even older PCs can easily run the driver programs.<br> 75 78 76 <div class="desc-right"> 77 <img src="/shared/photos/rechnertechnik/facit4070.jpg" width="144" height="196" alt="Photography of the paper tape puncher FACIT 4070" /> 78 <p class="bildtext" style="width:145px;">The legendary puncher <b>FACIT 4070</b></p> 79 </div> 80 81 <p>As already told, there's not really the question how to model punched papers on 79 As already told, there's not really the question how to model punched papers on 82 80 computers, since they use the same word length (8 bit) and computer files are 83 81 conceptually the same as paper tapes: byte arrays. A 250 byte binary file therefore
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