SYM-1 working prompt! : 無料・フリー素材/写真
SYM-1 working prompt! / c.j.b
| ライセンス | クリエイティブ・コモンズ 表示 2.1 |
|---|---|
| 説明 | It lives! (yes, really)After maybe an hour of testing the board with an oscilloscope (fixing a computer with an oscilloscope--how cool is that?) we discovered that we had two bad 6502 microprocessors (luckily I had a known working 65C02 on hand), as well as an electrically faulty 2114 RAM chip that had to be removed for anything to work. By watching the CRO traces on the Reset, Clock, and Address pins, we could tell what parts were functioning correctly, and worked our way up!The SYM-1 outputs a single "." prompt to show that everything's okay... |
| 撮影日 | 2009-12-09 01:51:38 |
| 撮影者 | c.j.b |
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