I recently bought a second hand Arturia Microbrute synthesizer as a toy. It's a beautiful miniature yet complete entry-level mono synth. Limited as it may first seem, it actually lives up to Arturia's claim of sounding "massive" and "brutal" quite well.
Well, what the first thing to do when I get an analog semi-modular synth? Tear it down, lads! I really want to see what kind of beast is roaring inside. Notice that this passage is not a review - people on youtube have done that thoroughly years before.
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可惜我对PMOS工艺的了解完全是0，资料也几乎没法找到。在刚刚决定开始做逆向时我做的非常痛苦，因为相比于前一个结构非常清晰的CMOS，这个PMOS芯片没有任何标识：掺杂区、过孔、多晶硅长的完全一样，这几乎让我放弃了逆向，但考虑到pmonta.com上，站长已经发了他对ROM的逻辑部分的逆向结果，我觉得自己只要“Try Hard Enough”，总是能看明白的。在尝试了超过6个小时后我终于完全明白了这个芯片的工艺，我将我的探索过程发在这里。
Meh... a detailed description of this little project will be covered in a future article (If I actually would do). Basically, I'm trying to make a portable music player / midi synth based around YM2608. I expect this project to take forever to complete...orz