Leigh Oliver leighleighleigh

Embedded engineers can have a little preprocessor macros, as a treat :3

leighleighleigh / ulp_custom_instruction_encoder.py

Created March 2, 2026 11:44

Custom instruction encoder script for ESP32-S3 RISCV ULP co-processor.

	#!/usr/bin/env python3

	"""
	/**
	* This header file defines custom instructions for interrupt handling on the
	* ULP RISC-V. The architecture of the processor and therefore, the interrupt
	* handling is based on the PicoRV32 CPU. Details about the operations are
	* available at https://github.com/YosysHQ/picorv32#custom-instructions-for-irq-handling
	*/

leighleighleigh / esp_hal_rs_ulp_gpio_interrupt_gist.rs

Created March 2, 2026 10:52

Useful functions to enable GPIO 5 interrupt, and accompanying interrupt handler, for ESP32S3 ULP core (not yet mainlined)

	// Required to shadow the weakly-linked ulp_irq_handler
	// that is defined by esp-lp-hal.
	#[link_name = "ulp_irq_handler"]
	#[unsafe(link_section = ".init")]
	#[unsafe(no_mangle)]
	extern "C" fn ulp_irq_handler(q1: u32) {
	/* Internal Interrupts */
	if (q1 & 0b1) > 0 {
	// TODO
	}

leighleighleigh / ghidra_bulk_import.sh

Last active February 9, 2025 08:15

Ghidra bulk file import with dynamic library search for portable executable files

	#!/usr/bin/env bash
	### Ghidra project bulk file import with DLL library resolution
	### Warning, this file takes bloody ages to run! (40 minutes for 140 files)
	### ... but it's still faster than using the GUI!
	### Leigh Oliver 23rd September 2024
	###
	### EXAMPLE USAGE
	# Import one file...
	# ./import.sh ./MyProject.gpr ./coredll.dll
	# Import a list of files...

leighleighleigh / svgbob_live.sh

Created December 18, 2022 05:57

svgbob_live.sh - live preview of ASCII diagrams as SVG using svgbob

	#!/usr/bin/env bash

	### svgbob live preview ###

	# DESCRIPTION
	# Runs svgbob_cli whenever a file is changed (specified at launch)
	# and open it with eog (eye of gnome)
	# AUTHOR
	# Leigh Oliver, 18/12/2022
	# USAGE

leighleighleigh / auto_rotate.sh

Last active November 2, 2020 12:32 — forked from Links2004/auto_rotate.sh

Linux auto rotate screen and adjust touch matrix based on accelerometer data

	#!/bin/bash
	# Auto rotate screen based on device orientation
	# based on https://linuxappfinder.com/blog/auto_screen_rotation_in_ubuntu

	# install
	# 1. apt-get install iio-sensor-proxy inotify-tools
	# 2. add script to autostart

	# Receives input from monitor-sensor (part of iio-sensor-proxy package)
	# Screen orientation and launcher location is set based upon accelerometer position

leighleighleigh / media_control.py

Created January 18, 2020 03:46

	#!/usr/bin/python3
	import dbus, dbus.mainloop.glib, sys
	from gi.repository import GLib
	import datetime
	from math import floor

	track_dur = 0

	def on_property_changed(interface, changed, invalidated):
	global track_dur

leighleighleigh / gpio_read_reg.ino

Created September 20, 2018 06:46

An example of using a GPIO input register to read pin inputs on NodeMCU (esp8266 based) board.

	// Our super ultra fast input register
	#define GPIO_IN READ_PERI_REG(0x60000318)

	#define CHAN0 D1
	#define CHAN1 D2
	#define CHAN2 D3
	#define CHAN3 D4
	#define CHAN4 D5

	void setup()

leighleighleigh / favs.txt

Last active June 12, 2017 04:51

Some of my favourite comments from the Apollo 11 Source Code