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MCU Services (edit)

Revision as of 10:10, 8 October 2019

3,918 bytes added ,  10:10, 8 October 2019
→‎MCU service "mcu::RTC": 0x2E0000 -> SetPowerModeIndicatorState
Line 7: Line 7:  
!  Description
 
!  Description
 
|-
 
|-
−
| 0x0001....
+
| 0x00010040
−
| ?
+
| WriteCameraLedState (writes i2c register 0x2B)
 
|-
 
|-
−
| 0x0002....
+
| 0x00020080
−
| ?
+
| ReadCameraLedState (reads i2c register 0x2B)
 
|}
 
|}
   Line 29: Line 29:  
| GetGpuLcdInterfaceState. This writes the value of I2C-MCU register 0xf bit7 to u8 cmdreply[2].
 
| GetGpuLcdInterfaceState. This writes the value of I2C-MCU register 0xf bit7 to u8 cmdreply[2].
 
|-
 
|-
−
| 0x0004....
+
| 0x00040040
 
| SetGpuLcdInterfaceState. This writes the lower two bits of MCU register 0x22.
 
| SetGpuLcdInterfaceState. This writes the lower two bits of MCU register 0x22.
 
|-
 
|-
−
| 0x0005....
+
| 0x00050040
−
| ?
+
| SetTopScreenFlicker
 
|-
 
|-
−
| 0x0006....
+
| 0x00060080
−
| ?
+
| GetTopScreenFlicker
 
|-
 
|-
−
| 0x0007....
+
| 0x00070040
−
| ?
+
| SetBottomScreenFlicker
 
|-
 
|-
−
| 0x0008....
+
| 0x00080080
−
| ?
+
| GetBottomScreenFlicker
 
|-
 
|-
 
| 0x00090000
 
| 0x00090000
Line 50: Line 50:  
| GetMcuFwVerLow. Called by GSP module
 
| GetMcuFwVerLow. Called by GSP module
 
|-
 
|-
−
| 0x000B....
+
| 0x000B0040
 
| Set3dLedState
 
| Set3dLedState
 
|-
 
|-
−
| 0x000C....
+
| 0x000C0000
 
| Get3dLedState
 
| Get3dLedState
 
|-
 
|-
−
| 0x000D....
+
| 0x000D0000
 
| GetMcuGpuEventHandle. Event handle written to TLS+0x8c. MCU notifications 24 to 29 signal this.
 
| GetMcuGpuEventHandle. Event handle written to TLS+0x8c. MCU notifications 24 to 29 signal this.
 
|-
 
|-
Line 69: Line 69:  
!  Description
 
!  Description
 
|-
 
|-
−
| 0x00010000
+
| 0x00010040
−
| ? (observed command header 0x00010040)
+
| ?
 
|-
 
|-
−
| 0x0002....
+
| 0x00020000
−
| ?
+
| ??? test register 0x40 bit0, and writes result to IPC+8
 
|-
 
|-
−
| 0x0003....
+
| 0x00030040
−
| ?
+
| ??? writes IPC+4 to register 0x41
 
|-
 
|-
−
| 0x0004....
+
| 0x00040000
−
| ?
+
| ??? reads register 0x44 to IPC+8
 
|-
 
|-
−
| 0x0005....
+
| 0x00050080
−
| ?
+
| ??? writes IPC+4 to register 0x43 and IPC+8 to register 0x44
 
|-
 
|-
−
| 0x0006....
+
| 0x00060000
−
| ?
+
| ReadGyroscopeValues (reads 3x s16 gyro ADC values into IPC+8)
 
|-
 
|-
−
| 0x0007....
+
| 0x00070000
−
| Get3dSliderState
+
| GetRaw3DSliderPosition (u8 position in IPC+8)
 
|-
 
|-
−
| 0x0008....
+
| 0x00080040
 
| ?
 
| ?
 
|-
 
|-
Line 96: Line 96:  
| ?
 
| ?
 
|-
 
|-
−
| 0x000A0000
+
| 0x000A0040
 
| ?
 
| ?
 
|-
 
|-
−
| 0x000B....
+
| 0x000B0000
 
| ?
 
| ?
 
|-
 
|-
 
| 0x000C0000
 
| 0x000C0000
−
| GetMcuHidEventHandle. MCU notifications 11 and 12 signal this.
+
| GetMcuHidEventHandle. MCU notifications 11 and 12 signal this. Handle is written to IPC+12
 
|-
 
|-
 
| 0x000D0000
 
| 0x000D0000
−
| GetMcuHidEventReason
+
| GetMcuHidEventReason. This reads an internal flield into IPC+8 and clears it.
 
|-
 
|-
 
| 0x000E0000
 
| 0x000E0000
Line 112: Line 112:  
|-
 
|-
 
| 0x000F0040
 
| 0x000F0040
−
| SetAccelerometerState(int enable). 1 = enable, 0 = disable accelerometer
+
| EnableAccelerometerInterrupt(int enable). 1 = enable, 0 = disable accelerometer
 
|}
 
|}
 +
 +
While before these functions are handled, the MCU interrupt with bitmask 0x800 is enabled, then after the commands were handled the MCU interrupt bits 0x1800 get cleared.
    
=MCU service "mcu::RTC"=
 
=MCU service "mcu::RTC"=
Line 121: Line 123:  
!  Description
 
!  Description
 
|-
 
|-
−
| 0x0001....
+
| 0x00010080
−
| SetSystemClock (RTC)
+
| [[MCURTC:SetRTC|SetRTC]]
 
|-
 
|-
−
| 0x0002....
+
| 0x00020000
−
| GetSystemClock (RTC)
+
| [[MCURTC:GetRTC|GetRTC]]
 
|-
 
|-
−
| 0x0003....
+
| 0x00030040
−
| ?
+
| SetRTCSeconds(u8 seconds)
 
|-
 
|-
−
| 0x0004....
+
| 0x00040000
−
| ?
+
| u8 GetRTCSeconds
 
|-
 
|-
−
| 0x0005....
+
| 0x00050040
−
| ?
+
| SetRTCMinutes(u8 minutes)
 
|-
 
|-
−
| 0x0006....
+
| 0x00060000
−
| ?
+
| u8 GetRTCMinutes
 
|-
 
|-
−
| 0x0007....
+
| 0x00070040
−
| ?
+
| SetRTCHours(u8 hours)
 
|-
 
|-
−
| 0x0008....
+
| 0x00080000
−
| ?
+
| u8 GetRTCHours
 
|-
 
|-
−
| 0x0009....
+
| 0x00090040
−
| ?
+
| SetRTCDayOfWeek(u8 dayno)
 
|-
 
|-
−
| 0x000A....
+
| 0x000A0000
−
| ?
+
| u8 GetRTCDayOfWeek
 
|-
 
|-
−
| 0x000B....
+
| 0x000B0040
−
| ?
+
| SetRTCDayOfMonth(u8 day)
 
|-
 
|-
−
| 0x000C....
+
| 0x000C0000
−
| ?
+
| u8 GetRTCDayOfMonth
 
|-
 
|-
−
| 0x000D....
+
| 0x000D0040
−
| ?
+
| SetRTCMonth(u8 month)
 
|-
 
|-
−
| 0x000E....
+
| 0x000E0000
−
| ?
+
| u8 GetRTCMonth
 
|-
 
|-
−
| 0x000F....
+
| 0x000F0040
−
| ?
+
| SetRTCYear(u8 year) where year = year - 2000
 
|-
 
|-
−
| 0x0010....
+
| 0x00100000
−
| ?
+
| u8 GetRTCYear where year = result + 2000
 
|-
 
|-
−
| 0x0011....
+
| 0x00110040
−
| ?
+
| SetRTCLeapYearCounter(u8 leap)
 
|-
 
|-
−
| 0x0012....
+
| 0x00120000
−
| ?
+
| u8 GetRTCLeapYearCounter
 
|-
 
|-
−
| 0x0013....
+
| 0x00130080
−
| ?
+
| [[MCURTC:SetRTCAlarm|SetRTCAlarm]]
 
|-
 
|-
−
| 0x0014....
+
| 0x00140000
−
| ?
+
| [[MCURTC:GetRTCAlarm|GetRTCAlarm]]
 
|-
 
|-
−
| 0x0015....
+
| 0x00150040
−
| ?
+
| SetRTCAlarmComponent[0] (u8 val)
 
|-
 
|-
−
| 0x0016....
+
| 0x00160000
−
| ?
+
| u8 GetRTCAlarmComponent[0]
 
|-
 
|-
−
| 0x0017....
+
| 0x00170040
−
| ?
+
| SetRTCAlarmComponent[1] (u8 val)
 
|-
 
|-
−
| 0x0018....
+
| 0x00180000
−
| ?
+
| u8 GetRTCAlarmComponent[1]
 
|-
 
|-
−
| 0x0019....
+
| 0x00190040
−
| ?
+
| SetRTCAlarmComponent[2] (u8 val)
 
|-
 
|-
−
| 0x001A....
+
| 0x001A0000
−
| ?
+
| u8 GetRTCAlarmComponent[2]
 
|-
 
|-
−
| 0x001B....
+
| 0x001B0040
−
| ?
+
| SetRTCAlarmComponent[3] (u8 val)
 
|-
 
|-
−
| 0x001C....
+
| 0x001C0000
−
| ?
+
| u8 GetRTCAlarmComponent[3]
 
|-
 
|-
−
| 0x001D....
+
| 0x001D0040
−
| ?
+
| SetRTCAlarmComponent[4] (u8 val)
 
|-
 
|-
−
| 0x001E....
+
| 0x001E0000
−
| ?
+
| u8 GetRTCAlarmComponent[4]
 
|-
 
|-
 
| 0x001F0040
 
| 0x001F0040
−
| SetPedometerRecordingMode
+
| SetPedometerRecordingMode(u8 mode)
 
|-
 
|-
 
| 0x00200000
 
| 0x00200000
−
| GetPedometerState
+
| u8 GetPedometerRecordingMode
 
|-
 
|-
−
| 0x0021....
+
| 0x00210080
−
| ?
+
| u8 GetStepCount (for the current day)
 
|-
 
|-
−
| 0x0022....
+
| 0x00220042
−
| ?
+
| ReadRegister4Fh(u32 unused_size, translation_param size=0x156 << 4 <nowiki>|</nowiki> 0xC, u8[0x156] ptr)
 
|-
 
|-
−
| 0x0023....
+
| 0x00230000
−
| ?
+
| void ??? writes 1 to register 0x4E which is not writable
 
|-
 
|-
−
| 0x0024....
+
| 0x00240000
−
| GetMcuRtcEventHandle. MCU notifications 1, 8, 9, 10, 13, 14 and 15 signal this.
+
| Handle GetPowerEventHandle. MCU notifications 1, 8, 9, 10, 13, 14 and 15 signal this.
 +
see [[I2C_Registers#Device_3|Register 0x18]]
 
|-
 
|-
−
| 0x0025....
+
| 0x00250000
−
| GetMcuRtcEventReason
+
| u32 GetPowerInterruptHistory
 
|-
 
|-
−
| 0x0026....
+
| 0x00260000
−
| ?
+
| bool CheckRegister02hBit0
 
|-
 
|-
−
| 0x0027....
+
| 0x00270000
−
| ?
+
| void ClearRegister02hBit0 (does nothing since the register is not writable)
 
|-
 
|-
−
| 0x0028....
+
| 0x00280000
−
| ?
+
| bool CheckRegister02hBit1
 
|-
 
|-
−
| 0x0029....
+
| 0x00290000
−
| ?
+
| void ClearRegister02hBit1
 
|-
 
|-
 
| 0x002A0000
 
| 0x002A0000
−
| GetShellState. This writes the value of I2C-MCU register 0xf bit1 to u8 cmdreply[2].
+
| bool GetShellState. This writes the value of I2C-MCU register 0xf bit1 to u8 cmdreply[2].
 
|-
 
|-
 
| 0x002B0000
 
| 0x002B0000
−
| GetAdapterState. This writes the value of I2C-MCU register 0xf bit3 to u8 cmdreply[2].
+
| bool GetAdapterState. This writes the value of I2C-MCU register 0xf bit3 to u8 cmdreply[2].
 
|-
 
|-
 
| 0x002C0000
 
| 0x002C0000
−
| GetBatteryChargeState. This writes the value of I2C-MCU register 0xf bit4 to u8 cmdreply[2].
+
| bool GetBatteryChargeState. This writes the value of I2C-MCU register 0xf bit4 to u8 cmdreply[2].
 
|-
 
|-
 
| 0x002D0000
 
| 0x002D0000
 
| [[MCURTC:GetBatteryLevel|GetBatteryLevel]]
 
| [[MCURTC:GetBatteryLevel|GetBatteryLevel]]
 
|-
 
|-
−
| 0x002E....
+
| 0x002E0000
−
| ?
+
| u8 SetPowerModeIndicatorState (see [[I2C_Registers#Device_3|Register 0x29]])
 
|-
 
|-
−
| 0x002F....
+
| 0x002F0000
−
| ?
+
| u8 GetBatteryEmptyPatternByte0_safe™
 
|-
 
|-
−
| 0x0030....
+
| 0x00300040
−
| ?
+
| SetLEDBrightness(u8 brightness) (see [[I2C_Registers#Device_3|Register 0x28]])
 
|-
 
|-
−
| 0x0031....
+
| 0x00310000
−
| ?
+
| u8 GetLEDBrightness (see [[I2C_Registers#Device_3|Register 0x28]])
 
|-
 
|-
−
| 0x0032....
+
| 0x00320000
−
| [[MCURTC:PowerOff|PowerOff]] (writes 0x1 to i2c MCU device, reg 0x20)
+
| void PowerOff (writes 0x1 to i2c MCU device, [[I2C_Registers#Device_3|reg 0x20]])
 
|-
 
|-
−
| 0x0033....
+
| 0x00330000
−
| [[MCURTC:HardwareReboot|HardwareReboot]] (writes 0x4 to i2c MCU device, reg 0x20)
+
| void HardwareReboot (writes 0x4 to i2c MCU device, [[I2C_Registers#Device_3|reg 0x20]])
 
|-
 
|-
−
| 0x0034....
+
| 0x00340000
−
| ?
+
| WriteRegister reg=0x23 value=0x72 (writing to read-only registers does nothing)
 
|-
 
|-
−
| 0x0035....
+
| 0x00350000
−
| Writes 0x10 to i2c MCU device, reg 0x20
+
| Writes 0x10 to i2c MCU device, reg 0x20 (this bit of the register is not writable)
 
|-
 
|-
−
| 0x0036....
+
| 0x00360040
−
| SetWatchdogTimer
+
| SetWatchdogTimer(u8 timer)
 
|-
 
|-
−
| 0x0037....
+
| 0x00370000
−
| GetWatchdogTimer
+
| u8 GetWatchdogTimer
 
|-
 
|-
−
| 0x0038....
+
| 0x00380042
−
| ?
+
| ReadI2CRegister7Fh(u32 unused_size, translation_param size << 4 <nowiki>|</nowiki> 0xC, u8[0x13] ptr)
 
|-
 
|-
−
| 0x0039....
+
| 0x00390082
−
| ?
+
| WriteLoop (translation parameters too complex)
 
|-
 
|-
−
| 0x003A....
+
| 0x003A0082
−
| ?
+
| ReadLoop (translation parameters too complex)
 
|-
 
|-
 
| 0x003B0640
 
| 0x003B0640
Line 304: Line 307:  
| [[MCURTC:GetInfoLEDStatus|GetInfoLEDStatus]]
 
| [[MCURTC:GetInfoLEDStatus|GetInfoLEDStatus]]
 
|-
 
|-
−
| 0x003E....
+
| 0x003E0040
−
| ?
+
| WriteRegister50h(u8 value)
 
|-
 
|-
−
| 0x003F....
+
| 0x003F0000
−
| ?
+
| u8 ReadRegister50h
 
|-
 
|-
−
| 0x0040....
+
| 0x00400040
−
| ?
+
| WriteRegister51h(u8 value)
 
|-
 
|-
−
| 0x0041....
+
| 0x00410000
−
| ?
+
| u8 ReadRegister51h
 
|-
 
|-
 
| 0x00420040
 
| 0x00420040
 
| [[MCURTC:SetBatteryEmptyLEDPattern|SetBatteryEmptyLEDPattern]]
 
| [[MCURTC:SetBatteryEmptyLEDPattern|SetBatteryEmptyLEDPattern]]
 
|-
 
|-
−
| 0x0043....
+
| 0x00430040
−
| ?
+
| SetScreenFlickerTop(u8 flicker)
 
|-
 
|-
−
| 0x0044....
+
| 0x00440000
−
| ?
+
| u8 GetScreenFlickerTop
 
|-
 
|-
−
| 0x0045....
+
| 0x00450040
−
| ?
+
| SetScreenFlickerBottom(u8 flicker)
 
|-
 
|-
−
| 0x0046....
+
| 0x00460000
−
| ?
+
| u8 GetScreenFlickerBottom
 
|-
 
|-
−
| 0x0047....
+
| 0x00470080
−
| ?
+
| SetVolumeSliderBounds(u8 low, u8 high) (see [[I2C_Registers#Device_3|Register 0x58]])
 
|-
 
|-
−
| 0x0048....
+
| 0x00480000
−
| ?
+
| u8 low, u8 high GetVolumeSliderBounds
 
|-
 
|-
−
| 0x0049....
+
| 0x00490040
−
| ?
+
| SetInterruptMask(u32 mask) (see [[I2C_Registers#Device_3|Register 0x18]])
 
|-
 
|-
−
| 0x004A....
+
| 0x004A0000
−
| ?
+
| u32 GetInterruptMask (see [[I2C_Registers#Device_3|Register 0x18]])
 
|-
 
|-
−
| 0x004B....
+
| 0x004B0000
−
| ?
+
| void ExitExclusiveInterruptMode
 
|-
 
|-
−
| 0x004C....
+
| 0x004C0000
−
| ?
+
| void EnterExclusiveInterruptMode
 
|-
 
|-
−
| 0x004D....
+
| 0x004D0000
−
| [[MCURTC:ReadHidFlagRegister|ReadHidFlagRegister]] (reads i2c MCU device, reg 0x10)
+
| [[MCURTC:ReadInterrupt|ReadInterrupt]] (see [[I2C_Registers#Device_3|Register 0x10]])
 
|-
 
|-
 
| 0x004E0040
 
| 0x004E0040
−
| [[MCURTC:PublishNotifications|PublishNotifications]]
+
| [[MCURTC:PublishNotifications|TriggerInterrupt]]
 
|-
 
|-
−
| 0x004F....
+
| 0x004F0040
−
| Sets some flag (otherwise set when uploading MCU firmware)
+
| SetMCUFirmUpdated(u32 flag) used by PTM module
 
|-
 
|-
−
| 0x0050....
+
| 0x00500000
−
| Returns the above flag
+
| u32 IsMCUFirmUpdated
 
|-
 
|-
 
| 0x00510040
 
| 0x00510040
Line 367: Line 370:  
| [[MCURTC:GetSoftwareClosedFlag|GetSoftwareClosedFlag]]
 
| [[MCURTC:GetSoftwareClosedFlag|GetSoftwareClosedFlag]]
 
|-
 
|-
−
| 0x0053....
+
| 0x00530040
 
| ?
 
| ?
 
|-
 
|-
−
| 0x0054....
+
| 0x00540000
 
| ?
 
| ?
 
|-
 
|-
−
| 0x0055....
+
| 0x00550040
 
| ?
 
| ?
 
|-
 
|-
−
| 0x0056....
+
| 0x00560000
 
| ?
 
| ?
 
|-
 
|-
−
| 0x0057....
+
| 0x00570040
 
| ?
 
| ?
 
|-
 
|-
−
| 0x0058....
+
| 0x00580000
 
| ?
 
| ?
 
|-
 
|-
Line 390: Line 393:  
| 0x005A0000
 
| 0x005A0000
 
| [[MCURTC:GetLegacyJumpProhibitedFlag|GetLegacyJumpProhibitedFlag]]
 
| [[MCURTC:GetLegacyJumpProhibitedFlag|GetLegacyJumpProhibitedFlag]]
 +
|-
 +
| 0x005B0040
 +
| SetUUIDClockSequence
 +
|-
 +
| 0x005C0000
 +
| GetUUIDClockSequence
 +
|-
 
|}
 
|}
−
  −
Note that using invalid input with these InfoLED/SetBatteryEmptyLEDPattern commands(especially SetInfoLEDPattern) can cause the system to be bricked(however the boot failure may not begin immediately after using the invalid parameters). For the bitmasks controlling these LEDs, bit clear = LED enable, bit set = LED disable? These notification LEDs(red LED, green LED, blue LED, ...) can only be enabled/disabled, nothing more.
      
=MCU sound service "mcu::SND"=
 
=MCU sound service "mcu::SND"=
Line 400: Line 408:  
!  Description
 
!  Description
 
|-
 
|-
−
| 0x0001....
+
| 0x00010080
−
| GetSoundVolume
+
| GetSoundVolume, writes volume slider value (0-63) to IPC+8
 
|-
 
|-
−
| 0x0002....
+
| 0x00020040
−
| ?
+
| Set...
 
|-
 
|-
−
| 0x0003....
+
| 0x00030000
−
| ?
+
| GetRegister25h, cmdbuf[2] is 0 on n3ds
 
|}
 
|}
   Line 429: Line 437:  
|-
 
|-
 
| 0x0005....
 
| 0x0005....
−
| Sets GPIO 0x40000 high/low?
+
| SetEnableWifiGpio
 
|-
 
|-
 
| 0x0006....
 
| 0x0006....
−
| Gets GPIO 0x40000 high/low?
+
| GetEnableWifiGpio
 
|-
 
|-
 
| 0x0007....
 
| 0x0007....
Line 447: Line 455:  
!  Description
 
!  Description
 
|-
 
|-
−
| 0x0001....
+
| 0x00010082
−
| GetMcuRegister? Seems to read an arbitrary register (by parameter)
+
| [[MCUHWC:ReadRegister|ReadRegister]]
 
|-
 
|-
−
| 0x0002....
+
| 0x00020082
−
| SetMcuRegister?
+
| [[MCUHWC:WriteRegister|WriteRegister]]
 
|-
 
|-
−
| 0x0003....
+
| 0x00030042
−
| ?
+
| [[MCUHWC:GetInfoRegisters|GetInfoRegisters]]
 
|-
 
|-
−
| 0x0004....
+
| 0x00040000
−
| ?
+
| [[MCUHWC:GetBatteryVoltage|GetBatteryVoltage]]
 
|-
 
|-
−
| 0x0005....
+
| 0x00050000
−
| GetBatteryLevel
+
| [[MCUHWC:GetBatteryLevel|GetBatteryLevel]]
 
|-
 
|-
−
| 0x0006....
+
| 0x00060040
−
| ?
+
| [[MCUHWC:SetPowerLEDPattern|SetPowerLEDPattern]]
 
|-
 
|-
−
| 0x0007....
+
| 0x00070040
−
| ?
+
| [[MCUHWC:SetWifiLEDState|SetWifiLEDState]]
 
|-
 
|-
−
| 0x0008....
+
| 0x00080040
−
| ?
+
| [[MCUHWC:SetCameraLEDPattern|SetCameraLEDPattern]]
 
|-
 
|-
−
| 0x0009....
+
| 0x00090040
−
| Set3dLedState
+
| [[MCUHWC:Set3DLEDState|Set3DLEDState]]
 
|-
 
|-
 
| 0x000A0640
 
| 0x000A0640
 
| This is the same as [[MCURTC:SetInfoLEDPattern]].
 
| This is the same as [[MCURTC:SetInfoLEDPattern]].
 
|-
 
|-
−
| 0x000B....
+
| 0x000B0000
−
| GetSoundVolume
+
| [[MCUHWC:GetSoundVolume|GetSoundVolume]]
 
|-
 
|-
−
| 0x000C....
+
| 0x000C0040
−
| ?
+
| SetTopScreenFlicker
 
|-
 
|-
−
| 0x000D....
+
| 0x000D0040
−
| ?
+
| SetBottomScreenFlicker
 
|-
 
|-
−
| 0x000E....
+
| 0x000E0080
 
| ?
 
| ?
 
|-
 
|-
−
| 0x000F....
+
| 0x000F00C0
 
| GetRtcTime
 
| GetRtcTime
 
|-
 
|-
Line 501: Line 509:  
=MCU service "mcu::PLS"=
 
=MCU service "mcu::PLS"=
   −
RTC-related? Each of these seems to retrieve a second counter from a different RTC register.
+
<s>Beg the sysmodule to return the datetime registers in decimal form instead of as a Binary Coded Decimal</s>
    
{| class="wikitable" border="1"
 
{| class="wikitable" border="1"
Line 508: Line 516:  
!  Description
 
!  Description
 
|-
 
|-
−
| 0x0001....
+
| 0x00010000
−
| ?
+
| GetDatetime (returns registers 0x30-0x36 in IPC+8)
 
|-
 
|-
−
| 0x0002....
+
| 0x00020000
−
| ?
+
| [[MCUPLS:GetSeconds|GetSeconds]]
 
|-
 
|-
−
| 0x0003....
+
| 0x00030000
−
| ?
+
| u8 GetMinutes
 
|-
 
|-
−
| 0x0004....
+
| 0x00040000
−
| ?
+
| u8 GetHour
 
|-
 
|-
−
| 0x0005....
+
| 0x00050000
−
| ?
+
| u8 GetDayOfWeek
 
|-
 
|-
−
| 0x0006....
+
| 0x00060000
−
| ?
+
| u8 GetDay
 
|-
 
|-
−
| 0x0007....
+
| 0x00070000
−
| ?
+
| u8 GetMonth
 
|-
 
|-
−
| 0x0008....
+
| 0x00080000
−
| ?
+
| u8 GetYear
 
|-
 
|-
−
| 0x0009....
+
| 0x00090000
−
| ?
+
| u16 GetTickCounter
 
|}
 
|}
   Line 551: Line 559:  
=MCU firmware versions=
 
=MCU firmware versions=
   −
These reside in mcu-module .rodata, are uploaded to MCU register 0x05 and are usually size 0x4003 bytes. (0x4000 bytes with 3 byte magic "jhl"?)
+
These reside in mcu sysmodule .rodata, are uploaded to MCU register 0x05 and are usually 0x4003 bytes in size (the actual firmware is 0x4000 bytes preceeded by a 3 byte magic header "<code>jhl</code>" which switches the I2C comms into flash write mode). 
 +
Switching requires register 0x05 (at address <code>0xFFBA9</code>) to contain 0x6A ('<code>j</code>'), register 0x06 containing 0x68 ('<code>h</code>'), and writing 0x6C ('<code>l</code>') to register 0x07. The actual flashing sequence is only signaled (code at 0x3312-0x331A) when writing register 0x07, it's skipped otherwise. Register 0x07 gets written anyways, just the actual signaling is skipped if the conditions aren't met.
 +
 
 +
Before the upload could commence, external MCU interrupts are turned off via GPIO command 0x00020080(0, 0x40000), then after the upload completed, the sysmodule waits exactly one second for the MCU to reboot, then turns external MCU interrupts back on via <code>gpio:MCU</code> command 0x00020080(0x40000, 0x40000).
   −
There exists an alternate code path where uploading is done using register 0x3B (decided by making some nonsense conclusions about registers 0x0F and 0x10). This may be a "hack" around early versions of MCU? Register 0x3B is RTC-related on recent versions of MCU, and the "nonsense" condition is not met even on factory MCU firmware.
+
There exists an alternate code path in very old MCU_FIRM versions where uploading is done using register 0x3B (if register 0x0F is zero and 0x10 is 1). Register 0x3B is part of the RTC alarm registers on recent versions of MCU.
    
On dev-units, the user-facing representation of this firmware version is displayed by first subtracting 0x10 from the major field (raw register 0x00). It is these user-facing versions that are displayed in the table below. It is unknown what bit4 (0x10) actually represents, but it is seemingly always set.
 
On dev-units, the user-facing representation of this firmware version is displayed by first subtracting 0x10 from the major field (raw register 0x00). It is these user-facing versions that are displayed in the table below. It is unknown what bit4 (0x10) actually represents, but it is seemingly always set.
Line 561: Line 572:  
!  Title version
 
!  Title version
 
!  Firmware
 
!  Firmware
 +
|-
 +
| New3DS v9216 (New2DSXL)
 +
| 3.65
 
|-
 
|-
 
| New3DS v8192/safe v9217 (latest)
 
| New3DS v8192/safe v9217 (latest)
Unknown
115

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