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自己画的板子，hdmi不能显示，求救！！！
发表于 2016-5-26 11:52:13
浏览：11688
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回复：5
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各位大神，
我们根据rk3288-reload板子的原理图，自己画了一块板子出来，只留了一个HDMI接口，现在这个HDMI接口不能显示画面，报的错误是EDID不能解析，但是我们的板子画的都是一样的，硬件都检查了，没有短路，断路情况，电压也正常，I2C5 是5V， HDP也是5V。
报错log如下：
下面是拔出时的log：
shell@firefly:/ $
shell@firefly:/ $
shell@firefly:/ $ [ 18.309976] android_usb gadget: high-speed config #1: android
[ 18.310853] android_work: sent uevent USB_STATE=CONFIGURED
[ 47.926217] [EDID] check header error
[ 47.926249] rockchip-hdmiv2 ff980000.hdmi: warning: no CEA video mode parsed from EDID !!!!
[ 47.926483] hdmi output corlor mode is 1
[ 47.926502] hdmi connect to lcdc1
[ 47.926515] switch:en=1,lcdc_id=1,screen type=6,cur type=1
[ 48.123482] rk3288-lcdc lcdc1: lcdc1: dclk:74250000>>fps:60
[ 48.123794] pixel clk is 74250000 tmds clk is 74250000
[ 48.123829] rockchip-hdmiv2 ff980000.hdmi: [hdmi_dev_config_video] sucess output DVI.
[ 51.934557] hdmi remove from lcdc1
下面是插入时的log
[ 51.934583] switch:en=0,lcdc_id=1,screen type=6,cur type=6
[ 52.131462] rk3288-lcdc lcdc1: no layer is used,go to standby!
[ 60.177022] [EDID] check header error
[ 60.177055] rockchip-hdmiv2 ff980000.hdmi: warning: no CEA video mode parsed from EDID !!!!
[ 60.177165] hdmi output corlor mode is 1
[ 60.177181] hdmi connect to lcdc1
[ 60.177194] switch:en=1,lcdc_id=1,screen type=6,cur type=6
[ 60.374039] rk3288_load_screen,clk_on = 0
[ 60.374123] rk3288-lcdc lcdc1: lcdc1: dclk:74250000>>fps:60
[ 60.374139] rk3288-lcdc lcdc1: wakeup from standby!
[ 60.472986] pixel clk is 74250000 tmds clk is 74250000
[ 60.473029] rockchip-hdmiv2 ff980000.hdmi: [hdmi_dev_config_video] sucess output DVI.
[ 60.483439] hdmi remove from lcdc1
[ 60.483455] switch:en=0,lcdc_id=1,screen type=6,cur type=6
[ 60.680368] rk3288-lcdc lcdc1: no layer is used,go to standby!
reload板子原理图
我们板子原理图：
请各位大神看看，帮忙给点提示！
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