
Since it’s initial release in 2010, the Micro SwinSID from Swinkels has gone through some improvements over the years. These improvements have come in form of both hardware and firmware updates.
Most obvious improvement was the change of form factor from the Micro SwinSID to the more familiar Nano SwinSID. Initially the Micro SwinSID was based on DIL-packaged ATmega processor making the board that housed also a full-size crystal oscillator and couple of trough-hole components almost twice as wide as the SID socket. Some time later a redesign appeared that was based on surface mount components, squeezing all the same components into a small PCB that’s no larger than a real SID chip. Or at least as long as only area is considered. Pin headers, components and jumpers make the board somewhat thicker.

Micro SwinSID and Nano SwinSID side by side. Both designs have the same components and features, except for the additional filter jumper in Nano.
During the first few years since the introduction, there was couple of official firmware updates. These firmware updates improved the sound emulation and compatibility with the behavior of a real SID chip, reducing the number of cases where Nano SwinSID would not sound or act ‘right’. Down the line there was also a feature update that made it possible to select the filter emulation between 8580 or 6581-like behavior using a jumper.
These refinements have improved Nano SwinSID, making it more feasible SID replacement with each improvement. Sadly there hasn’t been a new official, or publicly available firmware for the Nano SwinSID since 2012. As if SwinSID had reached its maximum potential with some of its flaws to remain.
This changed in 2014 when Máté ‘CodeKiller’ Sebők stepped up with a new firmware. Read the rest of this entry »
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