Pinout.xyz VS ghidra

Obligatory shameless plug of https://pinout.xyz where I’ve been maintaining an interactive Raspberry Pi SBC pinout for some years, and the newer https://pico.pinout.xyz where I’ve tried to do the same for the Raspberry Pi Pico board. The latter also became a command-line pinout via the Python package “picopins”

I feel- and of course I’m biased- that if anything is worth bringing to the table for device pinouts it’s interactivity and accessibility. The latter, in particular, is lost in static images. I really leaned into this with the Pico Pinout, including everything from visual accessibility accommodations (avoiding low contrast text background colours), to markup for screen readers to the ability to turn off labels and reduce noise. I’m still unsure if I actually achieved my goal, but it’s been fun.

There is a great resource to be found at pinout.xyz that details a lot of boards and the pins they actually use.

All the LEDs have their negative pins together and go through two 1k resistors in series on their way to ground (any gpio ground pin). Then a short piece of jumper wire goes from the positive lead of each LED to it's GPIO pin number. Don't use the pin order number, use the GPIO number.

I wanted to create an accessible alternative to the official Pico pinout image, offering more complete pin details, light/dark modes, screen-readable text, and at least some capacity to focus on the peripherals you’re interested in. It’s a sister site to the now ancient Raspberry Pi pinout (https://pinout.xyz/) which started out life hosted on a Raspberry Pi.

GPIO PIN numbers - its a real pain with both board and BCM numbers (see pinout.xyz for details) without having to translate what the libraries use by default!

The pins are at top right corner here: https://pinout.xyz/ and you just connect TX to RX, RX to TX and GND to GND. On the software side you can use picocom on the builtin serial device. Not sure which though, seems to depend on the software and exact revision of your RPi.

You can see all the pins on the pin documented at https://pinout.xyz

Use pinout.xyz to see what pins are used for the SPI interface on your Pi.

You have mixed up the PIN numbers - the Pi has two sets on numbers (board and BCM) - see here for details

Let's see what our beloved software reverse engineering framework Ghidra has to show.

Define war machinery. Contributing to Ghidra?

https://github.com/NationalSecurityAgency/ghidra

Binary Ninja likewise is empty and keeps up just fine as well. It's not a coincidence that the two commercial products that are funding it are both confident enough to put their stuff online like this.

And it's no conspiracy theory or intentional sandbagging, you can see the implementation: https://github.com/decompiler-explorer/decompiler-explorer

and if anyone can improve the other tools performance we'd be happy to accept it. We reached out to the Ghidra devs: https://github.com/NationalSecurityAgency/ghidra/issues/5228 but they didn't have any silver bullets for us either.

Nice, I'll give it a closer look. My only concern so far is memory hooking (still needed for hardware registers), which on Java side was called by FilteredMemoryState [1]. In memstate.cc it looks like just the simpler MemoryState is implemented [2], and there's no equivalent to MemoryAccessFilter. But it might not be that complicated to add...

[1]: https://github.com/NationalSecurityAgency/ghidra/blob/4561e8...

[2]: https://github.com/NationalSecurityAgency/ghidra/blob/4561e8...