Mysteries: Difference between revisions

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: C may stand for Chiheisen ("horizon" in Japanese, the O3DS's codename being "Project Horizon").

:: Not true, Horizon refers to the OS.

: CTR stands for Citrus.

== Hardware ==

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=== Is there a JTAG? ===

=== Is there more than one revision of the bootrom? ===

'''Background:''' Bootrom visible portion has been dumped on the entire 3DS Family (3DS, 3DSXL, 2DS, New3DS, New3DSXL, New2DSXL), and even a prototype board from April(?) 2010. All matching exactly.

'''Background:''' Bootrom visible portion has been dumped on the entire 3DS Family (3DS, 3DSXL, 2DS, New3DS, New3DSXL, New2DSXL, iQue3DSXL), and even a prototype board from April(?) 2010. All matching exactly.

=== What is the EMMC controller @ 0x10100000 doing? ===

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=== What is the PDN abbreviation? ===

: ~~Power distribution network~~

: PowerDowN

=== How does Nintendo reflash bricked systems? ===

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=== What was the problem in "initial program loader" that was mentioned in an FCC filing by Nintendo for 2DS? ===

'''Background:''' http://www.neogaf.com/forum/showthread.php?t=814624&page=1

This could be referring to the ROM on the AR6K wireless chip:

* Some 2DS units have the WiFi chip soldered directly to the board (such as the 2DS in this FCC filing: https://fccid.link/BKE/FTR001N), and some do not.

* The AR6K ROM only acts as an initial loader.

* Maybe some AR6K-family devices allow signature checks on the firmware? Or maybe some registers weren't write-once but should have been?

=== What did SVC 0x74 in the ARM11 kernel do before it got stubbed? ===

=== What is the PTM abbreviation? ===

: ~~Power/time management~~

: PlayTime Management

=== Why is the DTCM not used anywhere except bootrom? ===

@@ Line 5: / Line 5: @@
 : C may stand for Chiheisen ("horizon" in Japanese, the O3DS's codename being "Project Horizon").
 :: Not true, Horizon refers to the OS.
+: CTR stands for Citrus.
 == Hardware ==
@@ Line 14: / Line 15: @@
 === Is there a JTAG? ===
 === Is there more than one revision of the bootrom? ===
-'''Background:''' Bootrom visible portion has been dumped on the entire 3DS Family (3DS, 3DSXL, 2DS, New3DS, New3DSXL, New2DSXL), and even a prototype board from April(?) 2010. All matching exactly.
+'''Background:''' Bootrom visible portion has been dumped on the entire 3DS Family (3DS, 3DSXL, 2DS, New3DS, New3DSXL, New2DSXL, iQue3DSXL), and even a prototype board from April(?) 2010. All matching exactly.
 === What is the EMMC controller @ 0x10100000 doing? ===
@@ Line 25: / Line 26: @@
 === What is the PDN abbreviation? ===
-: Power distribution network
+: PowerDowN
 === How does Nintendo reflash bricked systems? ===
@@ Line 34: / Line 35: @@
 === What was the problem in "initial program loader" that was mentioned in an FCC filing by Nintendo for 2DS? ===
 '''Background:''' http://www.neogaf.com/forum/showthread.php?t=814624&page=1
+This could be referring to the ROM on the AR6K wireless chip:
+* Some 2DS units have the WiFi chip soldered directly to the board (such as the 2DS in this FCC filing: https://fccid.link/BKE/FTR001N), and some do not.
+* The AR6K ROM only acts as an initial loader.
+* Maybe some AR6K-family devices allow signature checks on the firmware? Or maybe some registers weren't write-once but should have been?
 === What did SVC 0x74 in the ARM11 kernel do before it got stubbed? ===
 === What is the PTM abbreviation? ===
-: Power/time management
+: PlayTime Management
 === Why is the DTCM not used anywhere except bootrom? ===