3dbrew

Hardware calibration: Difference between revisions

← Older editNewer edit →
MarcusD (talk | contribs)
Trusted
225 edits
MarcusD (talk | contribs)
Trusted
225 edits
Clean up some of the non-descriptive and/or wrong variable names
Line 57: Line 57:
|-
|-
| 1
| 1
| LCD flicker (always successful)
| LCD "flicker"/contrast (always successful)
|-
|-
| 2
| 2
Line 84: Line 84:
|-
|-
| A
| A
| Power saving mode (ABL)
| Adaptive BackLight (ABL)
|-
|-
| B
| B
Line 99: Line 99:
|-
|-
| F
| F
| Power saving mode (ABL) in legacy (DSi/GBA) mode
| Adaptive BackLight (ABL) in legacy (DSi/GBA) mode
|}
|}


Line 122: Line 122:
| 2*
| 2*
| 00050000
| 00050000
| [[#Screen_flicker|Screen flicker]]
| [[#Screen_flicker|Display panel contrast]]
|-
|-
| 0x24
| 0x24
Line 167: Line 167:
| 0x20
| 0x20
| ???
| ???
| [[#ABL|Power saving mode]]
| [[#ABL|Adaptive BackLight / Power saving mode]]
|-
|-
| 0x470
| 0x470
Line 228: Line 228:


==Touch==
==Touch==
Used for mapping touch ADC values to display pixel co-ordinates.
<code>
[4096, 4096] --> [320, 240]
[RawX, RawY] --> [PointX, PointY]
</code>
Usually [PointX0, PointY0] is placed around 25% from the top-left corner, and the same for [PointX1, PointY1] except 25% from the bottom-right corner.
This offsetting is needed because the touch film starts to distort outside of that rectangle, which would skew the touch results near the center of the screen.
{| class="wikitable" border="1"
{| class="wikitable" border="1"
!  Offset
!  Offset
!  Description
!  Declaration
|-
|-
| 0x00
| 0x00
Line 258: Line 269:


==Circle pad==
==Circle pad==
Contains the centering position of the circle pad. For other circle pad settings, see [[#Circle_pad_extra|circle pad extra]].
{| class="wikitable" border="1"
{| class="wikitable" border="1"
!  Offset
!  Offset
!  Declaration
!  Description
!  Description
|-
|-
| 0x00
| 0x00
| s16 CenterX
| s16 CenterX
|rowspan="2"| Raw analog values corresponding to zero input position
|-
|-
| 0x02
| 0x02
Line 270: Line 286:


==Screen flicker==
==Screen flicker==
These values are written to MCU register 0x03 and 0x04 respectively. They both set the display contrast voltage.
{| class="wikitable" border="1"
{| class="wikitable" border="1"
!  Offset
!  Offset
!  Declaration
!  Description
!  Description
|-
|-
| 0
| 0
| u8 FlickerTop
| u8 FlickerTop
|rowspan="2"| Contrast voltage
|-
|-
| 1
| 1
Line 281: Line 302:
|-
|-
| 2*
| 2*
|rowspan="2"| Inline checksum
| Checksum low byte, NOT THIS[0]
| Checksum low byte, NOT THIS[0]
|-
|-
Line 290: Line 312:
{| class="wikitable" border="1"
{| class="wikitable" border="1"
!  Offset
!  Offset
!  Declaration
!  Description
!  Description
|-
|-
| 0
| 0
| u8 CompensationValue (???)
| u8 CompensationValue
| (???)
|-
|-
| 1*
| 1*
|
| Checksum byte, NOT THIS[0]
| Checksum byte, NOT THIS[0]
|}
|}
Line 302: Line 327:
{| class="wikitable" border="1"
{| class="wikitable" border="1"
!  Offset
!  Offset
!  Description
!  Declaration
|-
|-
| 0x00
| 0x00
Line 368: Line 393:
{| class="wikitable" border="1"
{| class="wikitable" border="1"
!  Offset
!  Offset
!  Description
!  Declaration
|-
|-
| 0x00
| 0x00
Line 401: Line 426:
{| class="wikitable" border="1"
{| class="wikitable" border="1"
!  Offset
!  Offset
!  Description
!  Declaration
|-
|-
| 0x00
| 0x00
Line 425: Line 450:
{| class="wikitable" border="1"
{| class="wikitable" border="1"
!  Offset
!  Offset
!  Declaration
!  Description
!  Description
|-
|-
| 0x00
| 0x00
| u8 DriverGainHP
| u8 DriverGainHP
| Headphone gain
|-
|-
| 0x01
| 0x01
| u8 DriverGainSP
| u8 DriverGainSP
| Speaker gain
|-
|-
| 0x02
| 0x02
| u8 AnalogVolumeHP
| u8 AnalogVolumeHP
|
|-
|-
| 0x03
| 0x03
| u8 AnalogVolumeSP
| u8 AnalogVolumeSP
|
|-
|-
| 0x04
| 0x04
| s8 ShutterVolume[2]
| s8 ShutterVolume[2]
|
|-
|-
| 0x06
| 0x06
| u8 MicrophoneBias
| u8 MicrophoneBias
| Capacitive microphone bias voltage
|-
|-
| 0x07
| 0x07
| u8 QuickCharge (???)
| u8 QuickCharge
| (???)
|-
|-
| 0x08
| 0x08
| u8 PGA_GAIN (microphone gain)
| u8 PGA_GAIN
| ??? (microphone gain)
|-
|-
| 0x09
| 0x09
Line 456: Line 490:
| 0x0C
| 0x0C
| s16 FilterHP32[3*5]
| s16 FilterHP32[3*5]
| Headphone filter for 32728.49Hz sampling rate
|-
|-
| 0x2A
| 0x2A
| s16 FilterHP47[3*5]
| s16 FilterHP47[3*5]
| Headphone filter for 47605Hz sampling rate
|-
|-
| 0x48
| 0x48
| s16 FilterSP32[3*5]
| s16 FilterSP32[3*5]
| Speaker filter for 32728.49Hz sampling rate
|-
|-
| 0x66
| 0x66
| s16 FilterSP47[3*5]
| s16 FilterSP47[3*5]
| Speaker filter for 47605Hz sampling rate
|-
|-
| 0x84
| 0x84
| s16 FilterMic32[(1+2)+((1+4)*5)]
| s16 FilterMic32[(1+2)+((1+4)*5)]
| Microphone filter for 32728.49Hz sampling rate
|-
|-
| 0xBC
| 0xBC
| s16 FilterMic47[(1+2)+((1+4)*5)]
| s16 FilterMic47[(1+2)+((1+4)*5)]
| Microphone filter for 47605Hz sampling rate
|-
|-
| 0xF4
| 0xF4
| s16 FilterFree[(1+2)+((1+4)*5)]
| s16 FilterFree[(1+2)+((1+4)*5)]
| Unknown
|-
|-
| 0x12C
| 0x12C
Line 495: Line 536:
| 0x132
| 0x132
| u8 YM_Driver
| u8 YM_Driver
| ??? (circle-pad or touch panel related?)
|-
|-
| 0x133
| 0x133
Line 503: Line 545:
{| class="wikitable" border="1"
{| class="wikitable" border="1"
!  Offset
!  Offset
!  Description
!  Declaration
|-
|-
| 0x00
| 0x00
Line 515: Line 557:
{| class="wikitable" border="1"
{| class="wikitable" border="1"
!  Offset
!  Offset
!  Description
!  Declaration
|-
|-
| 0x00
| 0x00
Line 527: Line 569:
{| class="wikitable" border="1"
{| class="wikitable" border="1"
!  Offset
!  Offset
!  Description
!  Declaration
|-
|-
| 0x00
| 0x00
Line 578: Line 620:
{| class="wikitable" border="1"
{| class="wikitable" border="1"
!  Offset
!  Offset
!  Description
!  Declaration
|-
|-
| 0x00
| 0x00
Line 602: Line 644:
{| class="wikitable" border="1"
{| class="wikitable" border="1"
!  Offset
!  Offset
!  Description
!  Declaration
|-
|-
| 0x00
| 0x00
Line 630: Line 672:


==MCU==
==MCU==
Somewhat misleading, these values are actually used for clamping the MCU's raw slider readings to comprehensible values.
{| class="wikitable" border="1"
{| class="wikitable" border="1"
!  Offset
!  Offset
!  Declaration
!  Description
!  Description
|-
|-
| 0x00
| 0x00
| s16 SVR2_Min (???)
| s16 SVR2_Min
| Raw 3D volume slider values <= this map to 3D slider value 0.0
|-
|-
| 0x02
| 0x02
| s16 SVR2_Max (???)
| s16 SVR2_Max
| Raw 3D volume slider values >= this map to 3D slider value 1.0
|-
|-
| 0x04
| 0x04
| s16 VolumeSliderMin
| s16 VolumeSliderMin
| Written to MCU reg 0x58. Volume slider values <= this map to volume value 0x00
|-
|-
| 0x06
| 0x06
| s16 VolumeSliderMax
| s16 VolumeSliderMax
| Written to MCU reg 0x59. Volume slider values >= this map to volume value 0x3F
|}
|}


==ULCD delay==
==ULCD delay==
There is a delay between switching the parallax barrier, and adjusting the backlight.
These delay values determine how many VBlank events to wait on before switching the backlight curves to the appropriate mode.
This is needed only to prevent epillepsy from analog jitter causing unwanted mode switches, and both values are usually always set to 1 or 2.
{| class="wikitable" border="1"
{| class="wikitable" border="1"
!  Offset
!  Offset
!  Description
!  Declaration
|-
|-
| 0x00
| 0x00
Line 662: Line 720:
{| class="wikitable" border="1"
{| class="wikitable" border="1"
!  Offset
!  Offset
!  Description
!  Declaration
|-
|-
| 0x00
| 0x00
Line 671: Line 729:
{| class="wikitable" border="1"
{| class="wikitable" border="1"
!  Offset
!  Offset
!  Description
!  Declaration
|-
|-
| 0x00
| 0x00
Line 695: Line 753:
{| class="wikitable" border="1"
{| class="wikitable" border="1"
!  Offset
!  Offset
!  Description
!  Declaration
|-
|-
| 0x00
| 0x00
Line 710: Line 768:
{| class="wikitable" border="1"
{| class="wikitable" border="1"
!  Offset
!  Offset
!  Description
!  Declaration
|-
|-
| 0x00
| 0x00
Retrieved from "https://www.3dbrew.org/wiki/Hardware_calibration"