Of course, if you'd rather take the classes in person, you can register today for some upcoming live classes:

S4 in Tampa, FL: https://s4xevents.com/s4x25-training/

Reverse.io in Orlando: https://shop.binary.ninja/products/re-verse-hardware-reverse-engineering

Black Hat in Singapore: https://www.blackhat.com/asia-25/training/schedule/index.html#applied-hardware-attacks-on-embedded-and-iot-systems--43057

@gsuberland @xabean @esden

Anyway, all those experiences lead to the design decisions in tigard. level shifting without a bitstream, always-on jtag, proper eeprom contents, and labeled headers.

I had hoped someone else would have done it, but really should have done it way before I did. I am always surprised that people love tigard so much since there's nothing special about it - except i guess for the part where it doesn't seem to have any fatal flaws.

@gsuberland @xabean @esden
After the bustblaster, i tried using the TUMPA lite because it was cheap and readily available at the time. but for some reason we had >10% failure rate every time we taught a class with them.

Shikra came out of the desire to use a simple breakout board - it's the FTDI ft232h breakout board except with 2.54mm pins instead of 2mm.

Adafruit's breakout was even simpler and cheaper - but to this day ships with corrupt eeprom.

@gsuberland @xabean @esden

I've gotten the buspirate working with jtag/openocd. You need to flash a specific firmware (or should i say - frimware), and then you have to only use jtag, and then it's really slow, and then if anything goes wrong with jtag, your part, or openocd, you have to hard power cycle the buspirate, re-enter jtag mode, and restart openocd,

Busblaster is better. Except out of the box i couldn't get it working on anything until i went and built my own bitstreams.

@brk I also have a bunch of different bit organizers that are laser cut plywood or acrylic plus standoffs... That replace 3d printed ones I used previously.

I have a huge assortment of 1x1.5" bins that I'm glad I didn't have to print for most stuff:

@stacksmashing @esden

A lot of these things are better suited to custom pcbs, but sometimes you don't have the time to wait for boards or a PCB mill on hand. For some, any cnc machine would actually be the ideal tool but 3d printers are smaller/quieter/cheaper/easier/safer/more readily available