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karaketir16 / Prerequisites
Last active November 10, 2024 13:43
Prerequisites for RISC-V GNU Compiler Toolchain on OpenSUSE
sudo zypper install make autoconf automake python3 mpc-devel mpfr-devel gmp-devel gawk bison flex texinfo patchutils gcc gcc-c++ zlib-devel libexpat-devel libslirp-devel
@karaketir16
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
#include <iostream>
int multiply(int number_a, int number_b){
return number_a * number_b;
}
int my_function()
{
int c;
c = 5;
@karaketir16
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
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
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
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
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()
#!/bin/bash
for i in {0..19}
do
(while true; do dd if=/dev/zero of=/dev/ttyUSB$i bs=4k; done) &
done
sudo swapoff -a ; sudo fallocate -l 15G /swapfile ; sudo chmod 600 /swapfile ; sudo mkswap /swapfile ; sudo swapon /swapfile ; sudo swapon --show