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@rikka0w0
rikka0w0 / ft2232_to_digilent_jtag.md
Last active December 3, 2025 18:24
FT2232 to Digilent JTag for Xilinx FPGAs (ISE/Vivado)

The Digilent JTag uses FT2232, but its configuration EEPROM contains secrete data needed to be recoginzed by Xilinx ISE/Vivado. The following method only works on linux (tested on Ubuntu16.04), but the patched FT2232 doggle also works on Windows. Since WSL1 does not provide USB device access, the following method will not work for WSL1.

DONT use FT_Prog on offical Digilent cable, as it can trash the firmware! The offical eeprom contains secrete data that cannot be handled correctly by FT_Prog.

Here are steps to create a Digilent-like Jtag that can be used in Xilinx ISE and Vivado

  1. Install softwares: sudo apt-get install libftdi1 ftdi-eeprom
  2. Create a file "flash_digilent.conf" with the following content:
@eenblam
eenblam / linux_reading_list.md
Last active December 3, 2025 13:58
Linux Networking Reading List

Linux Networking Reading List

Currently in no particular order. Most of these are kind of ancient.

Where's all the modern documentation? So much of what I've turned up searching is other folks complaining about having few options beyond reading source code.

The OREILLY books, while dated, seem to be some of the best available. Note that these can be read with a 7-day trial. Do this! At least get through the introduction section and first chapter of each to see if it's what you're after.

https://www.netfilter.org/

@vimtaai
vimtaai / markdown-flavors.md
Last active December 6, 2025 00:36
Comparison of features in various Markdown flavors

Comparison of syntax extensions in Markdown flavors

I created a crude comparison of the syntax of the various common Markdown extensions to have a better view on what are the most common extensions and what is the most widely accepted syntax for them. The list of Markdown flavors that I looked at was based on the list found on CommonMark's GitHub Wiki.

Flavor Superscript Subscript Deletion*
Strikethrough
Insertion* Highlight* Footnote Task list Table Abbr Deflist Smart typo TOC Math Math Block Mermaid
GFM
@markasoftware
markasoftware / enterprise_token.rb
Last active December 8, 2025 18:06
OpenProject Enterprise mode for free
############ If you are using DOCKER all-in-one image, create Dockerfile like: ################
############ FROM openproject/openproject:16 ################
############ COPY ./enterprise_token.rb app/models/enterprise_token.rb ################
############ If you are runing a manual installation: ################
############ REPLACE app/models/enterprise_token.rb in the source code with this file! ################
############ also be sure to RESTART OpenProject after replacing the file. ################
############ If using some other set up (eg docker-compose), read the comments on ################
############ https://gist.github.com/markasoftware/f5b2e55a2c2e3abb1f9eefcdf0bfff45 ################
@mikejoh
mikejoh / kvm-on-ubuntu.md
Last active November 16, 2025 18:27
KVM on Ubuntu 20.04 using (Ubuntu) cloud images

Running virtual machines on KVM and Ubuntu 20.04 using (Ubuntu) cloud images

  1. Check: egrep -c '(vmx|svm)' /proc/cpuinfo
  2. Check: sudo kvm-ok
  3. Install:
sudo apt update
sudo apt install qemu-kvm libvirt-daemon-system libvirt-clients bridge-utils virt-manager cloud-image-utils
  1. Add yourself to the libvirt and kvm groups:
@thesamesam
thesamesam / xz-backdoor.md
Last active December 9, 2025 03:22
xz-utils backdoor situation (CVE-2024-3094)

FAQ on the xz-utils backdoor (CVE-2024-3094)

This is a living document. Everything in this document is made in good faith of being accurate, but like I just said; we don't yet know everything about what's going on.

Update: I've disabled comments as of 2025-01-26 to avoid everyone having notifications for something a year on if someone wants to suggest a correction. Folks are free to email to suggest corrections still, of course.

Background