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11.May 2020



Internal Flickerfixer/Scandoubler for A500/A2000 under free licence
Niklas Ekström is working on a FPGA-based Scandoubler/Flickerfixer which can be internally used in an Amiga 500 or 2000. In a first development stage a DE10-Lite-FPGA-developer board is connected to the pins of the custom chip "Denise". The FPGA generates a VGA signal from the CSYNC and 12-Bit-RGB signals. Originally the next step would have been a completed board equipped with FPGA and a SDRAM module directly put on the Denise.

Meanwhile Ekström takes a different approach: Currently he is changing his adapter so it can be directly put in the socket of Denise and thus replacing the original chip. By adapting a free emulation of Denise, written in Verilog, he is going to create a FPGA-based replacement for the 35 years old original chip which directly output a VGA signal. (cg) (Translation: dr)

[News message: 11. May 2020, 23:52] [Comments: 0]
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