https://blog.csdn.net/qq_34594095/article/details/109525678
https://blog.csdn.net/denghainan/article/details/100098404
像素时钟频率clock-frequency =51.2MHz或者44.9MHz≤clock-frequency≤63MHz或者通过公式计算H*V（总周期）*fps
水平有效像素Hactive=1024
水平总周期=1344
hsync-len = htotal- hback-porch- hfront-porch-Hactive
垂直有效像素Vactive=600
垂直总周期=635
vsync-len= vtotal-vback-porch - vfront-porch-+Vactive
hsync_start （行同步起始像素）= hactive+hfront-porch
hsync_end （行同步结束像素）= hactive+hfront-porch+hsync-len（hsd pulse width）
htotal (行总像素)=hactive+hfront-porch+hsync-len（hsd pulse width+hback-porch
vsync_start (帧同步开始行）= vactive + vfront-porch
vsync_end （帧同步结束行）= vactive+vfront-porch +vsync-len（vsd pulse width）
vtotal(帧总行数)= vactive+vfront-porch +vsync-len（vsd pulse width)+vback-porch