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   翠星石 (suiseiseki@freesoftwareextremist.com)'s status on Friday, 14-Jun-2024 19:46:57 JST 翠星石

   in reply to
   @hazlin >I read somewhere that the pi-pico had open hardware
   I believe you read an "openwashing" piece where they push proprietary stuff under the guise of "open".
   
   Although the board design has been published, it was designed with proprietary software on macos and so it isn't even viewable without that proprietary software and it has no license - so you cannot do much more than just looking at it.
   
   There's also a STEP file published - but that's only really usable for viewing and isn't really feasible to modify.
   
   The hardware design of the RP2040 isn't published either, but they've at least done the bare minimum and provided a datasheet with errata (of course no datasheet has been published for their Raspberry Pi models); https://datasheets.raspberrypi.com/rp2040/rp2040-datasheet.pdf
   
   It appears the RP2040 is all hardware, but it wouldn't surprise me if there's an inbuilt EEPROM full of proprietary software that they update.
   
   The "W" models run proprietary software, due to the wireless chip.
   
   It doesn't surprise me that they've only bothered to get a toolchain working on windows.
   
   
   I'm looking for hi-speed stuff that can do SPI, UART, JTAG, I₂C and NAND flash reading.