1）整板硬件初始化相关。

SystemManager::SystemManager() :
	xcmos_(&cam_uart_, &sys_timer_),
	xmotor_(&mcu_uart_, this),
	xhost_(&host_uart_, this),
	xaf_(this),
	xaec_(this),
	xin_(SYS_IN_0_REGS_ADDR, 0x1000),
	xout_(SYS_OUT_0_REGS_ADDR, 0x1000),
	xbayer_write_(BAYER_IP_REGS_ADDR, 0x1000),
	xbayer_video_(VIDEO_IP_REGS_ADDR, 0x1000),
	xbayer_photo_(PHOTO_IP_REGS_ADDR, 0x1000),
	xcrop_(CROP_ACCL_REGS_ADDR, 0x1000),
	xaf_accl_(AUTO_FOCUS_REGS_ADDR, 0x1000),
//	xinfo_(RGB_INFO_REGS_ADDR, 0x1000),
	xclahe_(CLAHE_ACCL_REGS_ADDR, 0x1000),
	boot_state_(0),
	state_timestamp_(0),
	debug_mode_(0)
{
	max_dzoom_scale_ = 2.581;
	min_dzoom_scale_ = 1.0;
	video_frame_count_ = 0;
	sensor_frame_count_ = 0;
	focus_motor_reach_ = 0;
	photo_stamp_ = 0;
	photo_over_mode_ = 0;
	zoom_speed_ = 1;
	dehazing_mode_ = 0;
	hdr_mode_ = 0;
	zoom_status_ = 0;

	brightness_mode_ = 0;
	brightness_value_ = 0;
	contrast_mode_ = 0;
	contrast_value_ = 0;
	saturation_mode_ = 1;
	saturation_value_ = 22000;
	awb_mode_ = 0;
	focus_radio_ = 1024;
}