Developer Manual/Tools/Dual Flash: Difference between revisions

From coreboot
Jump to navigation Jump to search
(Created page with "== Dual Parallel Flash == [[File:Dual_parallel_flash.jpg|400px|thumb|left|Dual flash "pie". One for keeping working firmware image. Flash chips are selectable by a tumbler switc...")
 
Line 1: Line 1:
== Dual Parallel Flash  ==
== Dual Parallel Flash  ==
You may do it yourself. That's a great tool getting away from bricks :)
[[File:Dual_parallel_flash.jpg|400px|thumb|left|Dual flash "pie". One for keeping working firmware image. Flash chips are selectable by a tumbler switch]]
[[File:Dual_parallel_flash.jpg|400px|thumb|left|Dual flash "pie". One for keeping working firmware image. Flash chips are selectable by a tumbler switch]]
[[File:Pie2.jpg|400px|thumb|left|Detailed "pie" structure. In a yellow ellipse you can see blue lines, that shows how to bend pins]]
[[File:Pie2.jpg|400px|thumb|left|Detailed "pie" structure. In a yellow ellipse you can see blue lines, that shows how to bend pins]]
[[File:Pie1.jpg|300px|thumb|left|VCC is connected to pull-up resistors]]
[[File:Pie1.jpg|300px|thumb|left|VCC is connected to pull-up resistors]]
[[File:Pull-ups.jpg|300px|thumb|left|Resistors are about 100 k?. Please note that green and red wires are also connected to their corresponding flash chip's chip select signal]]
[[File:Pull-ups.jpg|300px|thumb|left|Resistors are about 100 k?. Please note that green and red wires are also connected to their corresponding flash chip's chip select signal]]

Revision as of 22:10, 18 May 2011

Dual Parallel Flash

You may do it yourself. That's a great tool getting away from bricks :)

Dual flash "pie". One for keeping working firmware image. Flash chips are selectable by a tumbler switch
Detailed "pie" structure. In a yellow ellipse you can see blue lines, that shows how to bend pins
VCC is connected to pull-up resistors
Resistors are about 100 k?. Please note that green and red wires are also connected to their corresponding flash chip's chip select signal