HardwareTom's Hardwareabout 2 hours ago
Engineer Builds Custom RAM for Vintage Computer
3 min read
Dave Plummer, a former Microsoft engineer, built a custom RAM board for his 1970 PDP-11 computer to avoid 1970s memory prices. He used a Lattice MachXO2 FPGA and four ISSI 1 MB chips. Plummer initially struggled with the bus design but fixed the issue by implementing a software solution on a Raspberry Pi.
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