Difference between revisions of "Ide-exi"
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== General information == | == General information == | ||
| − | The IDE-EXI originated from a design by by Dampro (Damián), where he wanted to use whatever electronics he had lying around to get his GC to boot backups via modifying SD-Boot. His initial design/spec/code/tutorial is located [http://www.gc-forever.com/gchdd/build.htm here] and is intended for those who already have some device (PS2 Xilinx based modchip) for parts. The code was re-used in a redesigned version intended for the memory card slot with the help of bushing from Team Twiizers designing the PCB - this is what everyone has known as the [[IDE-EXI]] | + | The IDE-EXI originated from a design by by Dampro (Damián), where he wanted to use whatever electronics he had lying around to get his GC to boot backups via modifying SD-Boot. His initial design/spec/code/tutorial is located [http://www.gc-forever.com/gchdd/build.htm here] and is intended for those who already have some device (PS2 Xilinx based modchip) for parts. The code was re-used in a redesigned version intended for the memory card slot with the help of bushing from Team Twiizers designing the PCB - this is what everyone has known as the IDE-EXI. |
| + | [[Image:ide-exi-gc.jpg|thumb|alt=Gamecube with IDE-EXI connected|Gamecube with IDE-EXI connected|300px|right|Gamecube with IDE-EXI connected in Slot B]] | ||
== Release == | == Release == | ||
There was a batch of 100 IDE-EXI's produced and sold at GC-Forever, they sold within a day or two. A few months after, the files to have your own (mass) produced were [http://www.gc-forever.com/forums/viewtopic.php?f=23&t=538 released]. No more have been produced to this date, however users can always build their own all that is required is the Xilinx and time :) | There was a batch of 100 IDE-EXI's produced and sold at GC-Forever, they sold within a day or two. A few months after, the files to have your own (mass) produced were [http://www.gc-forever.com/forums/viewtopic.php?f=23&t=538 released]. No more have been produced to this date, however users can always build their own all that is required is the Xilinx and time :) | ||
| + | [[Image:ide-exi-back.jpg|thumb|alt=IDE-EXI back showing credits|IDE-EXI back showing credits|300px|right|IDE-EXI back showing credits]] | ||
== Bugs == | == Bugs == | ||
The Gamecube EXI bus has a bug in which every time data goes across the input line, the same data is written back out shifted right by 1. Due to this, the initial code cannot have DMA transfers performed, which limits speed (not 100% confirmed at this point). | The Gamecube EXI bus has a bug in which every time data goes across the input line, the same data is written back out shifted right by 1. Due to this, the initial code cannot have DMA transfers performed, which limits speed (not 100% confirmed at this point). | ||
| − | isobel from gc-linux.org has [http://www.gc-linux.org/wiki/EXI:IDEHostAdapter fixed] this bug, however this is in testing at the moment. | + | isobel from gc-linux.org has [http://www.gc-linux.org/wiki/EXI:IDEHostAdapter fixed] this bug, <s>however this is in testing at the moment</s>. |
| + | |||
| + | DMA Support was tested but what occurs is that if you DMA more than 1 sector of data over, the GameCube will DMA read too fast for the HDD to have prepared the data for the second sector. This causes random garbage bytes to appear mid DMA stream. More testing at slower speeds is required and single sector DMA too. | ||
[[Category:MiscHardware]] | [[Category:MiscHardware]] | ||
Revision as of 18:15, 17 December 2014
 IDE-EXI | |
| Specification | |
|---|---|
| CPU | Xilinx XC95144XL |
| GC Interface | Memory Card Slot A/B |
| HDD Interface | IDE Hard Disk Drive |
| Max Supported | 2TB |
General information
The IDE-EXI originated from a design by by Dampro (Damián), where he wanted to use whatever electronics he had lying around to get his GC to boot backups via modifying SD-Boot. His initial design/spec/code/tutorial is located here and is intended for those who already have some device (PS2 Xilinx based modchip) for parts. The code was re-used in a redesigned version intended for the memory card slot with the help of bushing from Team Twiizers designing the PCB - this is what everyone has known as the IDE-EXI.
Release
There was a batch of 100 IDE-EXI's produced and sold at GC-Forever, they sold within a day or two. A few months after, the files to have your own (mass) produced were released. No more have been produced to this date, however users can always build their own all that is required is the Xilinx and time :)
Bugs
The Gamecube EXI bus has a bug in which every time data goes across the input line, the same data is written back out shifted right by 1. Due to this, the initial code cannot have DMA transfers performed, which limits speed (not 100% confirmed at this point).
isobel from gc-linux.org has fixed this bug, however this is in testing at the moment.
DMA Support was tested but what occurs is that if you DMA more than 1 sector of data over, the GameCube will DMA read too fast for the HDD to have prepared the data for the second sector. This causes random garbage bytes to appear mid DMA stream. More testing at slower speeds is required and single sector DMA too.