Tuesday, July 2, 2024

A 6502 computer using an RP2040 for heavy lifting

Olimex has recently launched NEO6502 an open-source hardware retro computer designed for educational and entertainment purposes, but that doesn’t mean it can’t be used for retro gaming.

The board is built around a 65C02 MPU and uses a Raspberry Pi Pico RP2040 MCU in a dual-processor configuration. The MOS6502 handles the Apple II, Oric, and Commodore 64 emulators whereas the RP2040 handles everything else including HDMI (DVI) video output using the PicoDVI project.

Olimex NEO6502 board specifications

  • Processors
    • Western Design Center W65C02S 8-bit microprocessor @ 6.25 MHz with 64kB RAM, 32kB Graphics RAM
    • Raspberry Pi RP2040 dual-core Cortex-M0+ MCU @ 133 MHz with 264 KB SRAM
  • Storage – USB Key (optionally can use SD Card)
  • USB – USB-A ports for keyboard and game controllers
  • Video output – HDMI port
  • Audio – 3.5mm audio jack
  • UEXT Port for hardware extensions
  • Power – USB-C power supply connector
  • Dimensions – 80×55 mm with four 3.3mm mounting holes

As mentioned earlier the board features a two-processor setup that outperforms older 6502-based systems, making the Neo6502 faster and more efficient. Additionally, it has an onboard buzzer that can be used for notifications or as a speaker while playing games.

Read more on CNX Software and it’s available from Olimex.

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