双通道lvds配置.pdf

Allwinner Technology CO., Ltd. 双通道 lvds 屏配置 示例时序参数如下图： 根据上图的时序参数配置双通道的lvds屏如下： ; ;lcd0 configuration ;lcd_dclk_freq: in MHZ unit ;lcd_pwm_freq: in HZ unit ;lcd_if: 0:hv(sync+de); 1:8080; 2:ttl; 3:lvds ;lcd_lvds_ch: 0:single channel; 1:dual channel ;lcd_lvds_mode: 0:NS mode; 1:JEIDA mode ;lcd_lvds_bitwidth: 0:24bit; 1:18bit ;lcd_lvds_io_cross: 0:normal; 1:pn cross ;lcd_cpu_if: 0:18bit; 1:16bit mode0; 2:16bit mode1; 3:16bit mode2; 4:16bit mode3; 5:9bit; 6:8bit 256K; 7:8bit 65K ;lcd_io_cfg0: 0- MAGIC_VER_A, 0- MAGIC_VER_B ; [lcd0_para] lcd_used = 1 lcd_x =1280 //根据屏的 spec 配置 lcd_y =1024 //根据屏的 spec 配置 lcd_dclk_freq = 108 //时钟配置为屏的 spec 参数的两倍 lcd_pwm_freq = 1000 lcd_pwm_pol =0 lcd_srgb = 0 Allwinner Technology CO., Ltd. lcd_swap = 0 lcd_if = 3 //配置为 lvds 接口 lcd_hbp = 100 //可根据实际水平显示位置作调整 lcd_ht = 1688 //水平一行的时钟数，对应上图的 844*2 lcd_vbp = 3 //可根据实际垂直显示位置作调整 lcd_vt = 2132 //配置为 vt*2 ，对应上图的 1066*2 lcd_lvds_ch = 1 //lvds 双通道配置为 1，单通道为 0 lcd_lvds_mode = 0 lcd_lvds_bitwidth = 0 lcd_lvds_io_cross = 0 lcd_cpu_if = 0 lcd_cpu_da = 0 lcd_frm = 0 lcd_io_cfg0 = 0 lcd_io_cfg1 = 0 lcd_io_strength = 0 lcd_bl_en_used = 1 lcd_bl_en