😑

Osman Karaketir karaketir16

😑

karaketir16 / pico_my_copy.s

Created May 18, 2023 16:24

my copy function

	.syntax unified
	.section .text
	.thumb_func
	.global my_cpy
	my_cpy:
	push {r4, lr} @ push r4 and lr onto the stack
	movs r4, #0
	loop:
	ldrb r3, [r1, r4] @ load byte from r1 + r4 into r3
	strb r3, [r0, r4] @ store byte from r3 into r0 + r4

karaketir16 / swapfile

Created June 12, 2023 16:00

sudo swapoff -a ; sudo fallocate -l 15G /swapfile ; sudo chmod 600 /swapfile ; sudo mkswap /swapfile ; sudo swapon /swapfile ; sudo swapon --show

karaketir16 / Write ports zero

Created July 25, 2023 11:53

	#!/bin/bash

	for i in {0..19}
	do
	(while true; do dd if=/dev/zero of=/dev/ttyUSB$i bs=4k; done) &
	done

karaketir16 / udev_generator.py

Last active October 9, 2023 12:53

	import os
	import subprocess
	import re

	RULES_DIR = "/etc/udev/rules.d/"
	RULES_FILE_NAME = "99-usb-serial.rules"

	list_ttyUSB_cmd = "ls /dev/ \| grep ttyUSB"
	ttyUSB_list = subprocess.getoutput(list_ttyUSB_cmd).split()

karaketir16 / 20-wired.network

Created October 18, 2023 14:54

static ip for systems with systemd

	#/etc/systemd/network/20-wired.network

	[Match]

	Name=eth0

	[Network]

	Address=192.168.8.55/24

karaketir16 / disableDPMS

Created October 19, 2023 13:59

disable DPMS -- disable screen off / yocto mini-x-session

	#!/bin/sh
	#/etc/mini_x/session.d/disableDPMS

	/usr/bin/xset -dpms s off s noblank s 0 0 s noexpose

karaketir16 / gist:d5c6b798ecc1fe651b8a7668754aeb76

Created November 9, 2023 19:54

Ubuntu Python Version Install

https://web.archive.org/web/20231005145415/https://www.linuxcapable.com/install-python-3-8-on-ubuntu-linux/

karaketir16 / vscode_qt

Created November 10, 2023 14:25

VS Code Clangd and Qt

CMAKE_PREFIX_PATH="~/Qt/6.5.3/gcc_64/" cmake -DCMAKE_EXPORT_COMPILE_COMMANDS=1 ..

karaketir16 / cpp.cpp

Created May 25, 2024 04:21

	#include <iostream>

	int multiply(int number_a, int number_b){
	return number_a * number_b;
	}

	int my_function()
	{
	int c;
	c = 5;

karaketir16 / entry.s

Created October 14, 2024 18:42

RISC-V privilege levels example. Alternative for https://danielmangum.com/posts/risc-v-bytes-privilege-levels/ when pmp enabled. pmp disabled not worked for me

	.section .text
	.globl start

	# riscv64-unknown-elf-as -g entry.s -o entry.o && riscv64-unknown-elf-ld -T baremetal.ld entry.o -o entry
	# qemu-system-riscv64 -machine virt -cpu sifive-u54 -smp 1 -s -S -nographic -bios none -kernel entry
	# or
	# qemu-system-riscv64 -machine virt -cpu rv64 -smp 1 -s -S -nographic -bios none -kernel entry

	start:
	# Load address of 'supervisor' into t0 and set mepc