Editing Hardware flashing

Jump to navigation Jump to search
Warning: You are not logged in. Your IP address will be publicly visible if you make any edits. If you log in or create an account, your edits will be attributed to your username, along with other benefits.

The edit can be undone. Please check the comparison below to verify that this is what you want to do, and then publish the changes below to finish undoing the edit.

Latest revision Your text
Line 331: Line 331:
Tristate, or as it is referred to in the service manuals SB_DISABLE exists solely for the purpose of placing the [[South Bridge]] pins into high-impedance (aka the [https://en.wikipedia.org/wiki/Three-state_logic third state logic]) so that we can access the flash without the [[South Bridge]] interfering.
Tristate, or as it is referred to in the service manuals SB_DISABLE exists solely for the purpose of placing the [[South Bridge]] pins into high-impedance (aka the [https://en.wikipedia.org/wiki/Three-state_logic third state logic]) so that we can access the flash without the [[South Bridge]] interfering.


When the southbridge pins are in tristate is like if southbridge (and all peripherals connected to it) where disconnected from the main circuit, the PS3 powers up normally (fans, etc) but it won't boot up to the XMB screen because some components of the motherboard are not found, it just sits there with a black screen
Because the tristate pin is not connected to the [[Flash_%28Hardware%29#NOR | NOR flash]] TSOP package, but to the [[South Bridge]] BGA package, this makes tracing the pin quite difficult. One should be able to locate it by having the running you could ground out the unknown pins whilst checking the continuity of a known address or data line against ground. These should enter high-impedance or no-continuity when you ground out SB_DISABLE.
 
Because the tristate pin is not connected to the [[Flash (Hardware) | Flash]] TSOP package, but to the [[South Bridge]] BGA package, this makes tracing the pin quite difficult. One should be able to locate it by having the running you could ground out the unknown pins whilst checking the continuity of a known address or data line against ground. These should enter high-impedance or no-continuity when you ground out SB_DISABLE.


=== Connecting NOR pads to flasher ===
=== Connecting NOR pads to flasher ===
Please note that all contributions to PS3 Developer wiki are considered to be released under the GNU Free Documentation License 1.2 (see PS3 Developer wiki:Copyrights for details). If you do not want your writing to be edited mercilessly and redistributed at will, then do not submit it here.
You are also promising us that you wrote this yourself, or copied it from a public domain or similar free resource. Do not submit copyrighted work without permission!

To protect the wiki against automated edit spam, we kindly ask you to solve the following hCaptcha:

Cancel Editing help (opens in new window)