Changes

3,528 bytes added , 13:25, 11 December 2017

Added general file info about the Joy-Con Firmware

= Joy-Con Firmware File =

The length of the firmware must be 524288 bytes.

{| class="wikitable" border="1"
|-
! Offset
! Endianness
! Size
! Description
|-
| 0x00 || B || 0x14 || Magic number??
|-
| 0x15 || L || 0x06 || Unique MAC Address of controller
|-
| 0x3B3 || L || 0x04 || Offset to Factory Firmware
|-
| 0x1FF4 || B || 0x08 || OTA Magic, if the controller is Over-The-Air updated.
|-
| 0x1FFC || L || 0x04 || Offset to OTA Firmware, if OTA Magic is valid.
|-
| 0x6000 || Mixed || 0x1000 || Factory configuration (see [[#Factory Configuration Sector|Factory Configuration Sector]])
|-
| 0x8000 || Mixed || 0x1000 || User calibration (see [[#User Calibration Sector|User Calibration Sector]])
|}

== Factory Configuration Sector ==

{| class="wikitable" border="1"
|-
! Offset
! Endianness
! Size
! Description
|-
| 0x00 || B || 0x10 || Serial number
|-
| 0x10 || ? || 0x02 || Unknown
|-
| 0x12 || B || 0x01 || Type descriptor (see [[#Type Descriptor|Type Descriptor]])
|-
| 0x13 || ? || 0x3D || Unknown
|-
| 0x50 || B || 0x03 || Body color of Controller in RGB Hex (see [[Joy-Con#Colors|Joy-Con Colors]])
|-
| 0x53 || B || 0x03 || Button color of Controller in RGB Hex (see [[Joy-Con#Colors|Joy-Con Colors]])
|-
| 0x56 || ? || 0xFAA || Unknown
|}

=== Type Descriptor ===

{| class="wikitable" border="1"
|-
! Value
! Type Name
|-
| 0x01 || Joy-Con Left
|-
| 0x02 || Joy-Con Right
|-
| 0x03 || Pro Controller
|}

== User Calibration Sector ==

{| class="wikitable" border="1"
|-
! Offset
! Endianness
! Size
! Description
|-
| 0x00 || ? || 0x11 || Unknown
|-
| 0x10 || B || 0x0B || Left Stick Calibration (Factory 0xFF?)
|-
| 0x1B || B || 0x0B || Right Stick Calibration (Factory 0xFF?)
|-
| 0x26 || B || 0x1A || Sensor Calibration (Factory 0xFF?)
|-
| 0x40 || ? || 0xFBF || Unknown
|}

= Firmware Chunks =

The firmware itself is stored in PatchRAM chunks, located at the Factory Offset or the OTA Offset. Each chunk has a Record Type, Size and Data.

{| class="wikitable" border="1"
|-
! Offset
! Endianness
! Size
! Description
|-
| 0x00 || L || 0x01 || Record type (see [[#Record Types|Record Types]])
|-
| 0x01 || L || 0x02 || Size of data (size)
|-
| 0x03 || Mixed || (size) || Data
|}

== Record Types ==

{| class="wikitable" border="1"
|-
! Value
! Record name
! Description
|-
| 0x08 || REC8 || ROM1 Patches (See [[#Record 0x08|Record 0x08]] and [[#Memory Regions|Memory Regions]])
|-
| 0x0A || RECA || RAM (Ram Low and Ram High) Patches (See [[#Record 0x0A|Record 0x0A]] and [[#Memory Regions|Memory Regions]])
|-
| 0x0B || RECB || Unknown
|-
| 0xFE || END || End of chunk stream
|}

=== Record 0x08 ===

{| class="wikitable" border="1"
|-
! Offset
! Endianness
! Size
! Description
|-
| 0x00 || L || 0x01 || Index
|-
| 0x01 || L || 0x04 || Address
|-
| 0x05 || B || 0x04 || Data
|-
| 0x09 || L || 0x02 || Unk1?
|-
| 0x0B || L || 0x02 || Unk2?
|-
| 0x0D || L || 0x02 || Body size???
|}

=== Record 0x0A ===

{| class="wikitable" border="1"
|-
! Offset
! Endianness
! Size
! Description
! Note
|-
| 0x00 || L || 0x04 || Address || -
|-
| 0x04 || B || (Note) || Data || To calculate the size do: chunk_datasize (See [[#Firmware Chunks|Firmware Chunks]])-4
|}

=== Record 0x0B ===

{| class="wikitable" border="1"
|-
! Offset
! Endianness
! Size
! Description
|-
| 0x00 || L || 0x04 || Address
|}

== Memory Regions ==

{| class="wikitable" border="1"
|-
! Offsets
! Description
|-
| 0x00-0xC8000 || ROM 1
|-
| 0x260000-0x26C000 || ROM 2
|-
| 0xD0000-0x0x0DFFFF || RAM Low
|-
| 0x200000-0x247FFF || RAM High
|}

Sebastiaan

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Joy-Con Firmware (view source)

Revision as of 13:25, 11 December 2017