JTAGulator: Pin Mapper (EXTEST Scan)

The JTAGulator is an open source hardware hacking tool that assists in identifying on-chip debug interfaces of an electronic device. This video demonstrates the JTAG Pin Mapper (aka EXTEST Scan) command released in firmware v1.11. The command associates the physical pins of a target chip with their positions in the Boundary Scan Register, which can be useful for chip- or board-level reverse engineering or to provide information needed to access an external device connected to the target chip.
0:00 Intro
0:14 Boundary Scan + Command Overview
2:32 Setup: Hardware
4:01 Setup: JTAGulator
5:17 Demo: IR/DR Discovery
6:59 Demo: Pin Mapper (EXTEST Scan)
9:42 Limitations
10:31 Outro
Main project page (including complete engineering materials and purchasing information): www.jtagulator.com
Firmware and documentation: github.com/grandideastudio/jt...

[@Slinky511nx7]

I have no idea what I'm watching but I'm impressed

[@alix0788]

Not alone homie

[@choppa6829]

@@alix0788 no not alone

[@alix0788]

@@choppa6829 no no Not alone

[@sharkdavid]

heh, nice. I just got a jtagulator and am looking forward to playing with it later this month

[@BazaarPun]

Joe, why is my jtagulator menu so much more sparse? I cannot find any releases of firmware like that shown above.

[@user-gn2ev1nu1p]

Are you an electrical engineer or an electronic one !! and what is the difference between them ?

[@bmacd11b]

Joe - who would you recommend purchasing a JTAGulator from in the USA? Thanks.

[@adelmohammad9707]

If u still need help with this, dm anonymouskuntz on Instagram, I’m sure it’s something he can handle easily. Let him know I recommended u

[@RicardoCooper]

Adafruit

[@anoniem012]

How can I be nerd like you teach me, I am really looking up regarding this topic.

[@floydsequeira7601]

Ok, now I wanna be a hardware hacker!!!! How do I get started Please tell me

[@lamse_barmajiyye]

Hello Mr. Joe Thank you for this great design But I have a very simple question Why is there no user interface? I think if that was the case it would be much better I am AbdulKarim and following you from Syria Thank you

[@lordperezident]

Is Syria still getting bombed?

[@lamse_barmajiyye]

Yes

[@julianopiassa]

@@lamse_barmajiyye :(

[@malikmalik0216]

More video dude

[@renet-cetelecom529]

hello i'm brazilian and i have a telecom electronic repair company, i would like to know with your equipment i can change the router MAC or any equipment that has MAC, and modify the firmware of some equipment i am waiting for.

[@ferasalfarsi897]

Hi, Do you have online course?

[@parseval6162]

But why does Joe wear the black hat? And this phrase on his shirt?

[@redditfm4578]

What’s the point of all of this

[@pblaise]

Hi Joe, I work for BBTV and would love to connect with a business opportunity. Please let me know!

[@malikmalik0216]

Raspberry pi PC check