KiCAD Projects: Neotron Pico - A Neotron system powered by the Raspberry Pi Pico
The Neotron Pico KiCAD Project is based on the Neotron-32, but instead of a Texas Instruments Tiva-C Launchpad, it uses a reasonably priced Raspberry Pi Pico. To make it simple to create and install your peripherals, it also expands to the full micro-ATX size and adds more expansion slots.
Design
The Neotron Pico's brains are Raspberry Pi Pico computers. Digital 16-bit 48 kHz stereo audio and 12-bit Super VGA video are produced using PIO state machines. I2C and SPI buses are also included. An SPI-to-GPIO expander manages IRQs and SPI chip selects. To handle up to eight expansion slots or peripherals, this offers eight chip-selects and eight IRQs. The Pico can communicate with the I/O expander or the chosen expansion slot if the eight-chip selections are globally deactivated.
The SD Card is installed in slot 1 and the Board Management Controller is installed in slot 0, leaving slots 2 through 7 accessible for expansion. I2C and SPI, as well as distinct chip-select and IRQ signals, are present in each expansion slot.
Software
The SD Card is installed in slot 1 and the Board Management Controller is installed in slot 0, leaving slots 2 through 7 accessible for expansion. I2C and SPI, as well as distinct chip-select and IRQ signals, are present in each expansion slot.
Download Neotron Pico KiCAD Project
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Neotron Pico KiCAD Project