Micro SwinSID – Firmware update & AVR ISP Adapter
Micro SwinSID (SwinSID88) is a hardware replacement for legendary SID sound chip which was placed in every Commodore C64 computer and other devices.
On the Photo you can see the AVR ISP homebrew Adapter for programming the firmware.
Firmware update (10012011):
- Much improved ADSR envelope fading based on a real SID counter design.
- More soft filter.
Hardware tip:
To increase audio quality and volume level replace R4 (2k2) resistor with 1K. This will boost volume by about 50%
source: forum64.de
Categories: Firmware, News & Rumors, Today
How do you make the AVR Adapter to program the AtmelMega88?
@gioo
Hi Gioo,
This adapter works with a Atmel Programmer like this one: http://www.ebay.it/itm/AVR-USB-ISP-Programmer-ATMEL-ATMEGA-STK500-Neu-ATTINY-/370490000223
I followed the datasheet of the ATMEGA88 and i have made the adapter.