Olimex RP2350pc computer board features Raspberry Pi RP2350B MCU, HDMI/DVI video output, 4x USB ports

Olimex has launched an update to its RP2040pc computer board with the RP2350pc board powered by a Raspberry Pi RP2350B MCU coupled with 16MB flash, 8MB PSRAM, and offering HDMI/DVI video output, four USB 2.0 ports, and an audio Codec for retro computer emulation and education.

Other changes include a microSD card slot for additional storage and an on-board stereo audio codec and amplifier for Line-in and headphone audio jacks, and left and right speakers. That also means the two buzzers from the RP2040 board are gone. The design is now closer to a proper retro computer board.

Olimex RP2350pc

RP2350pc computer board specifications:

  • Microcontroller – Raspberry Pi RP2350B
    • CPU
      • Dual-core Arm Cortex-M33 @ 150 MHz with Arm Trustzone, Secure boot OR
      • Dual-core RISC-V Hazard3 @ 150 MHz
      • Either two cores can be used.
    • Memory – 520 KB on-chip SRAM
    • Package – QFN-80
  • Memory – 8MB SPRAM
  • Storage
    • 16MB SPI Flash
    • MicroSD card slot
  • Video Output – HDMI/DVI port
  • Audio
    • On-board ES8311 stereo audio codec and amplifier
    • 3.5mm Line-In jack 
    • 3.5mm headphone jack
    • Left and right speaker connectors
  • USB
    • 4x USB host ports
    • USB-C connector for programming
    • USB-C connector for power supply
  • Expansion – 2x UEXT connectors
  • Misc
    • Power switch
    • Programming/Execution switch
    • RP2350 reset and programming bootloader button
  • Power Supply
    • 5V via USB-C port
    • LiPo battery charger
  • Dimensions – 85 x 65 mm (four mounting holes with 3.3mm diameter)

Raspberry Pi RP2350B computer boardOlimex open-source hardware RP2350 PC board

We’re told that the USB host ports support USB flash drives, USB gamepads (Apple Joystick emulator), and USB keyboards. Olimex says the RP2350pc board is designed to run the Reload emulator to emulate Apple ][, Apple ][e, Oric-Atmos, Pravetz, and Puldin 8-bit computers. It’s also possible to play thousands of Total Replay 5.2 games on the platform. Another project that will work on the Raspberry Pi RP2350B board is Paul Robson’s RP2350pc user library to allow compilers and OS to be created with a unified, BIOS-like API.

Like its predecessor, the RP2350pc “all-in-one computer board” is open-source hardware, and you’ll find PDF and KiCad hardware design files, BoM, and Gerber files on GitHub.  There’s also a PDF user manual with a few more details about the hardware and software.

Olimex RP2350pc board is sold for 24.95 Euros on the company’s online store.

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