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Forum Index : Microcontroller and PC projects : Olimex RP2350PC now supported by PicoMitePC3 firmware
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| matherp Guru  Joined: 11/12/2012 Location: United KingdomPosts: 12166 |
  RP2350pc_Rev_A1.pdf RP2350pc-user-manual.pdf This is quite a nice little board at a sensible price. It has a few downsides. First: the psram is on GPIO8 which means none of the existing USB firmware will load because the serial port on GPIO8 triggers the psram which bu....ers the flash reads. Second: it doesn't have a port for a serial console without adding an external USB/UART Third: the I2S DAC is mono only and needs configuring over I2C to work at all Fourth: No real time clock Other than that.... However, it is available and does include most things needed to run as a standalone computer (clue is in the name) I therefore, after being asked and lent a board, decided to tailor the PicoMitePC3 build to also work with this board (and now also the Pico Computer 2). It does this as follows: RTC 32KHz clock on GP27 = PC3 no clock but psram on GP47 = PC2 no clock and psram on GP8 = RP2350PC So there is nothing left for you to do, the board automatically configures itself when the firmware is loaded. Then just plug in a monitor and usb keyboard and you are away. The board supports PWM audio as well as the I2S DAC (bet they had a job lot of these because as a component choice it makes no sense) so I have configured PWM which works both on the headphone output and via the onboard amplifier. Sdcard etc. all work as soon as the firmware is loaded. You need V7.00.00RC8 or greater to support the board Edited 2026-11-11 05:57 by matherp |
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| hhtg1968 Guru Joined: 25/05/2023 Location: GermanyPosts: 317 |
I looked at olimex.com. the board is really cheap. |
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