| 104D5 |
|---|
| Extended Function of Periodic Signal Output for Virtual Single Board Computer "x80" |
| AUTHORS |
| Takayuki NITTA (Tokuyama College of Technology) Tatsuya FURUKAWA, Masashi OHCHI (Saga University) |
| ABSTRACT |
| It is difficult to learn the I/O control because of mastering both hardware and software simultaneously. As a solution to the problem, we have developed a virtual single board computer x80 based on the Zilog Z80CPU architecture, which makes it easy to learn the I/O control. The present x80 is furnished with virtual devices which comprise 24 keys for input and 8 seven-segment LEDs for output. These devices will be driven by a simulated 8255(PPI) peripheral chip. The x80 is realized under the environment of the X Window System based on UNIX Operating System and one can experience a study for its fundamentals such as controlling LEDs by PPI. The paper describes the new implementation for the function of periodical signals output. |
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Annual Conference 2002