108
edits
Changes
Jump to navigation
Jump to search
Line 4:
Line 4: + + − + Line 15:
Line 17: + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
→Camera registers
== Specifications ==
== Specifications ==
[[Image:DSiCameraSampleImage.jpg|200px|thumb|right|A picture taken with the DSi's camera.]]
* 0.3 Megapixel
* 0.3 Megapixel
* 640*480 VGA
* 640*480 VGA
* No zoom and no flash
* No zoom and no flash.
* Photos saved in JPG format (saved in [[DCIM/]] folder on the SD/SDHC or in the internal memory)
* Photos saved in JPG format (saved in [[DCIM/]] folder on the SD/SDHC or in the internal memory)
* [[Nintendo DSi Camera]]
* [[Nintendo DSi Camera]]
* [[System Menu]]
=== Games ===
=== Games ===
* Asphalt 4 : Elite Racing (DSiWare)
* Brain Challenge (DSiWare)
* Classic Word Games
* Cooking Coach
* Cooking Coach
* Pop SuperStar : Road To Celebrity (DSiWare)
* Real Football 2009 (DSiWare)
* WarioWare : Snapped! (DSiWare)
* WarioWare : Snapped! (DSiWare)
* iCarly
* Pokemon Black,White (2010,JP)
* Castle of Magic (DSiWare)
* Photo Dojo (DSiWare)
== Camera registers (ARM7) ==
The cameras are controlled and initialized with [[I2C_Bus#Cameras|I2C Bus]] on ARM7 side.
== Camera registers (ARM9) ==
The actual data transfers are done on ARM9 side with below registers.
{| class="wikitable" border="1"
|-
! ADDRESS
! WIDTH
! NAME
|-
| 0x04004200
| 2
| REG_CAMRST
|-
| 0x04004202
| 2
| REG_CAMCNT
|-
| 0x04004204
| 4
| REG_CAMDATA
|-
| 0x04004210
| 4
| REG_CAM_?
|-
| 0x04004214
| 4
| REG_CAM_?
|}
=== REG_CAMRST ===
{| class="wikitable" border="1"
|-
! BIT
! DESCRIPTION
|-
| 15-0
| ?
|}
Used for resetting cameras. Once cameras are reset by poking this register, all three 0x0400420X camera registers are set to zero.
=== REG_CAMCNT ===
{| class="wikitable" border="1"
|-
! BIT
! DESCRIPTION
|-
| 0-3
| ?
|-
| 4
| IRQ error flag
|-
| 5
| Resets cameras when set?
|-
| 7-6
| ?
|-
| 9-8
| Set to 2(bit9 set) during init, cleared to zero on shutdown
|-
| 10
| Set to 1 during init, 0 on cameras shutdown
|-
| 11
| Set to 1 during init, 0 on cameras shutdown
|-
| 12
| ?
|-
| 13
| Set during initialization?
|-
| 14
| Cleared during initialization?
|-
| 15
| Enable
|}
When the IRQ error flag is set when the cameras [[Interrupts|IRQ]] handler is executing, the cameras are shut off. The cameras I2C devices are powered off until cameras are initialized via this register.
=== REG_CAMDATA ===
{| class="wikitable" border="1"
|-
! BIT
! DESCRIPTION
|-
| 31-0
| RGB555 video data converted by internal-cameras DSP
|}
For retrieving camera video data, [[NDMA]] with arm9 startup mode 11(camera) is used with this src register. The NDMA frame transfer is started when the cameras [[Interrupts|IRQ]] was thrown. Supported internal-cameras DSP final resolutions are 256x192 and 640x480, the corresponding frame transfer lengths are 0x18000 and 0x96000.(The 256x192 final resolution is converted by the internal-cameras DSP from the camera resolution)
== See also ==
== See also ==