yeah, you have to love their braveness:
is a totally changed hwfly, could be you latter couldn't even upgrade it to another firmware nor boot any payload they don't want you to load.
Upgradable, as listed on page, so it might be a "hwfly store" but is it actually them making it? or someone else using the brand name
Spider point memeUpgradable, as listed on page, so it might be a "hwfly store" but is it actually them making it? or someone else using the brand name
Use picotool to load to rp2040 as uf2 and then save it to your pc as bin
however it is possible to rewrite the firmware, we need to figure out how to write to emmc but it should be similar to sd, then we have the payload and the bct
https://raw.githubusercontent.com/hwfly-nx/firmware/master/firmware/src/payload.h
https://raw.githubusercontent.com/hwfly-nx/firmware/master/firmware/src/mariko_bct.h
payload is sdloader
https://raw.githubusercontent.com/hwfly-nx/firmware/master/firmware/src/payload.h
https://raw.githubusercontent.com/hwfly-nx/firmware/master/firmware/src/mariko_bct.h
Post automatically merged:
payload is sdloader
Bin is a image of the flash, uf2 is the program section data of the chip.
Post automatically merged:
also there is a set of converting tool but is really no need to convert a UF2 to a bin. By example, picotools (https://github.com/arduino/rp2040tools/releases) UF2Utils (https://github.com/microsoft/uf2/), bin2UF2 (https://github.com/xinabox/bin2uf2/releases) and the very same PicoTool (https://github.com/raspberrypi/picotool)
you can write the bin directly to the flash or use the UF2 to program the chip on bootloader mode. is the same
pikofly picks up on when the loader is modified and reverts it immediately
No offense but this has been probably talked about 20 times by now
Probably because it gets lost in the sea of "how do I install this" or "look at the stuff I bought for when it works"
Anyways, if I have this correct, we have 2 uf2's, one from the actual picofly that doesn't boot due to the ID being unique to the pico, and one that boots, but only non-hos payloads?
For anyone that's looked at this in ghidra, have we found the section where the pio is? That's going to most likely be the main communication, since it would effectively allow the pico to bitbang upwards of 100mhz+. I've more or less emulated the gameboy's APU on a pico with heavy pio usage for the audio output. I wouldn't say I'm a pro, but I know how to work with it to an extent.
Lastly, is there any documentation on how this works on the switch side? even if it's at a high level?
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