引用: ***4 发表于 2018-9-5 08:05
嗨,Arun,
HPD IRQ和HPD所定义的时间和发生条件的DisplayPort规格。信号HPD是高还是低,DFP将HPD信号按照HPD的地位。如果HPD IRQ位状态是断言,DFP应遵循DisplayPort规格产生IRQ加HPD信号。
既然你问这些信息,我想说,如果你发现IRQ位断言,这等于接口类型库检测DisplayPort源信号但信号不能在屏幕上显示出来。
嗨,丽莎,
定制的设计CGG3 CYPD3120基于GELE逻辑(UFP)与显示模块紧密耦合(我们不能做DP插件/OUT,DP线路直接路由到DP接收器引脚)。经过USB -C插件,我们将在这个系统上供电。
显示模块将提供HPD到CYPD-3120始终希望这不会引起问题。我所期望的是,当我们将UB-C插入到DFP设备系统上时,将在一个VDM系统UFP中发送注意力命令,接着是关于HPD、状态的状态消息。为什么UFP不能设置HPD IRQ比特。
CYPD 3120将知道电源上的HPD输入,但是为什么在电源接通时它丢失了捕获IRQ位设置?这个时间可以在应用程序级别上修改吗?
谢谢您,
以上来自于百度翻译
以下为原文
Hi Lisa,
w.r.t customized design CCG3 CYPD3120 based dongle logic(UFP) is tightly coupled with display module(we can't do DP plug-in/out, DP lines are routed to DP Receiver pins directly). After USB-C plug-in we will power on this system.
Display module will provide HPD to CYPD-3120 always hope this should not cause problem. What I am expected is, when we plug USB-C to DFP device system will power on and in one of VDM mesage UFP will send attention command and followed by Status message about HPD, status. why UFP is not no able to set HPD IRQ bit.
CYPD 3120 will know HPD input on power on but, why its missing to capture the IRQ bit setting during power on? Will this timing can be modified at application level?
Thank you,
引用: ***4 发表于 2018-9-5 08:05
嗨,Arun,
HPD IRQ和HPD所定义的时间和发生条件的DisplayPort规格。信号HPD是高还是低,DFP将HPD信号按照HPD的地位。如果HPD IRQ位状态是断言,DFP应遵循DisplayPort规格产生IRQ加HPD信号。
既然你问这些信息,我想说,如果你发现IRQ位断言,这等于接口类型库检测DisplayPort源信号但信号不能在屏幕上显示出来。
嗨,丽莎,
定制的设计CGG3 CYPD3120基于GELE逻辑(UFP)与显示模块紧密耦合(我们不能做DP插件/OUT,DP线路直接路由到DP接收器引脚)。经过USB -C插件,我们将在这个系统上供电。
显示模块将提供HPD到CYPD-3120始终希望这不会引起问题。我所期望的是,当我们将UB-C插入到DFP设备系统上时,将在一个VDM系统UFP中发送注意力命令,接着是关于HPD、状态的状态消息。为什么UFP不能设置HPD IRQ比特。
CYPD 3120将知道电源上的HPD输入,但是为什么在电源接通时它丢失了捕获IRQ位设置?这个时间可以在应用程序级别上修改吗?
谢谢您,
以上来自于百度翻译
以下为原文
Hi Lisa,
w.r.t customized design CCG3 CYPD3120 based dongle logic(UFP) is tightly coupled with display module(we can't do DP plug-in/out, DP lines are routed to DP Receiver pins directly). After USB-C plug-in we will power on this system.
Display module will provide HPD to CYPD-3120 always hope this should not cause problem. What I am expected is, when we plug USB-C to DFP device system will power on and in one of VDM mesage UFP will send attention command and followed by Status message about HPD, status. why UFP is not no able to set HPD IRQ bit.
CYPD 3120 will know HPD input on power on but, why its missing to capture the IRQ bit setting during power on? Will this timing can be modified at application level?
Thank you,
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