JTAG on the PBO

[kakureru]

why why what have no one pushed for this since jtag
can un-brick anything! I once jtagged my toilet with the
firmware from my toaster so I can enjoy toast on the can!!

you would think that this would have been one of the first
thing to come out for this.

**serial port is not jtag**

thanks to all who will prove i did not do enough research :P

[gmd024]

why why what have no one pushed for this since jtag
can un-brick anything! I once jtagged my toilet with the
firmware from my toaster so I can enjoy toast on the can!!

you would think that this would have been one of the first
thing to come out for this.

**serial port is not jtag**

thanks to all who will prove i did not do enough research :P

WTF!! - Pretty good way to get your JTAG point across :D

Enjoy your (canned) toast :p

btw - how did you brick your toilet :eek:

[kakureru]

I tried to install rocks and rolls....

[outatouch0]

Enjoy your (canned) toast :p

At least there will be something to dip it in nearby :eek:

[snappy46]

Just my 2 cents!

I kind of have a Jtag here that I used on my D*sh/bev receiver to put modified firmware on it. I say kind of because I made it myself and it is far from being a full fledge jtag (it only an Rs232 where all the connection are pass thru a 100 ohms resistor to drop the voltage to an acceptable level for the sat receiver. I use a program called jkeys to connect to receiver and transfer the new firmware.

Now that being said using the jtag on the sat receiver was fairly easy because a lot was known about the specification on the processor architecture running the sat receiver. The problem now is not much is known about the RTK 1073 IC; I try to find the datasheet for this beast but all was in vain. Until we know the architecture and the pin layout of the RTK 1073 it is very hard to figure out where to connect the jtag connector.

Making use of the build in RS 232 interface of the PBO is by far the easiest way to achieve repair on the PBO at this time.

PS: I never tried the jtag on my toilet but I will next time my toilet is plugged.:)

[billcat]

Just my 2 cents!

The problem now is not much is known about the RTK 1073 IC; I try to find the datasheet for this beast but all was in vain. Until we know the architecture and the pin layout of the RTK 1073 it is very hard to figure out where to connect the jtag connector.

Realtek takes their NDA policy far too seriously. It's impossible to find datasheets on even older stuff. I bet the reason for all the secrecy in this instance is the promised support of a software upgrade to enable hd audio, which is most likely impossible with the current chipset. It'll take a silicon replacement to enable it but there's no way to prove it without a datasheet.

[wigout]

RTK 1073 IC

.....pin layout of the RTK 1073 it is very hard to figure out where to connect the jtag connector.


By 'IC' here do you mean integrated chip or something else? Just fact checkin'.

Curtman over on minimodding.com has made some headway on identifying jtag on another rtd1073dd device (prodigi PD-100N).


Here's the post where he's picked out his best guesses for what is what for the ejtag on his prodigi:

http://minimodding.com/tiki-view_forum_thread.php?forumId=33&comments_parentId=1873&comments_per_page=1&thread_style=commentStyle_plain
(http://minimodding.com/tiki-view_forum_thread.php?forumId=33&comments_parentId=1873&comments_per_page=1&thread_style=commentStyle_plain)
& here's the photo tracing those back to the chip:

http://minimodding.com/tiki-view_forum_thread.php?forumId=33&comments_parentId=1897&comments_per_page=1&thread_style=commentStyle_threaded (http://minimodding.com/tiki-view_forum_thread.php?forumId=33&comments_parentId=1897&comments_per_page=1&thread_style=commentStyle_threaded)

(These pin locations ought to be the same)

And for anyone wanting to read the whole thread:
http://minimodding.com/tiki-view_forum_thread.php?forumId=33&comments_parentId=1863&comments_grandParentId=&comments_reply_threadId=1863&comments_offset=0&topics_offset=1&topics_sort_mode=commentDate_desc&forumId=33&moveto=2042&comments_per_page=999999&thread_style=commentStyle_plain&thread_sort_mode=commentDate_asc&comments_threshold=0&comments_commentFind=&comments_setOptions=Set (http://minimodding.com/tiki-view_forum_thread.php?forumId=33&comments_parentId=1863&comments_grandParentId=&comments_reply_threadId=1863&comments_offset=0&topics_offset=1&topics_sort_mode=commentDate_desc&forumId=33&moveto=2042&comments_per_page=999999&thread_style=commentStyle_plain&thread_sort_mode=commentDate_asc&comments_threshold=0&comments_commentFind=&comments_setOptions=Set)

[snappy46]

By 'IC' here do you mean integrated chip or something else? Just fact checkin'.


IC = "Integrated circuit" same difference you got the idea. Thanks for your post; I'll see what I can dig up there.