Huawei U8860 Maintenance Manual page 65

U8860
Maintenance Manual
During focal length adjustment, the internal motor is supplied with power by
VREG_CAM_2P85, and the control signal is provided by CAMIF_RESET_OUTS_N.
The 0.3-megapixel secondary camera shares the I2C bus with the 8-megapixel primary
camera. The data is transmitted in RAW mode. The interface definitions are as follows:
Signal
VREG_L11_1P8
VREG_L13_2P85
CAMIF_MCLK
CAMIF_PCLK
CAMIF_DATA[11:4]
CAMIF_HSYNC
CAMIF_VSYNC
SCL_GSB_CAM
SDA_GSB_CAM
CAMIF_RESET_OUTS_SLAV
E
The function implementation method for the secondary camera is same as that for the primary
camera while their data transmission modes are different.
Troubleshooting process:
Failure: No image can be captured.
Solution:
Issue 1.0 (2011-11-14)
Remarks
1.8 V
2.85 V
Camera's reference clock MSM->CAMERA
CAMRA->MSM 96MHz max
8-bit USB cable
Line synchronizing signal
Frame synchronizing signal
I2C control signal
Reset signal
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9 Principles and Troubleshooting
60