MTK平台Camera调试N种问题及解决办法

FAQ00001

SW

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Camera driver相关常见问题

[FAQ04110][Camera Drv] OV5647 Mipi sensor

[DESCRIPTION]

OV5647 Mipi sensor 低概率性进入预览或者切换到预览界面黑屏，有时可自动恢复，有时定屏卡死。

[SOLUTION]

1. Shutter设置不当导致

修改：

OV5647MIPI_Write_Shutter()函数里

if(iShutter > (OV5647_sensor.frame_height))

extra_line = iShutter - (OV5647_sensor.frame_height));

修改为:

2. Preview/Capture setting后delay时间不够，导致sensor端Mipi信号不正常，继而无法抓取数据

1）修改：

OV5647MIPIGetInfo()里修改delay frame

pSensorInfo->CaptureDelayFrame = 2;

pSensorInfo->PreviewDelayFrame = 2;

pSensorInfo->VideoDelayFrame = 2;



2）如果第一点修改无效，请在preview以及capture函数最后各增加30ms的Delay。