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注册日期: ‎06-02-2020

zynq ultrascale+ mpsoc ps side dp example design

MPSoC EV自研板,PS侧DP接口电路参考官方104设计,但是在下载官方提供的dpdma的example design时,显示屏上未输出绿条,串口信息如下:

DPDMA Generic Video Example Test

Generating Overlay.....

 

HPD event .......... ! Connected.

 

Lane count =        2

 

Link rate =        20

 

 

 

Starting Training...

 

! Training succeeded.

 

DONE!

 

Lane count =        2

 

Link rate =        20

 

 

 

Starting Training...

 

! Training succeeded.

 

DONE!

 

.......... HPD event

 

Successfully ran DPDMA Video Example Test

HPD pulse ..........

 

! Re-training required.

 

Lane count =        2

 

Link rate =        20

 

 

 

Starting Training...

 

! Training succeeded.

 

DONE!

 

.......... HPD pulse

 

根据串口信息,示波器确实在DP座子的HPD引脚抓到了一个960us的下拉的pulse,但是代码运行中显示屏一直是开启状态,请问有遇到过一样问题的可以讨论一下吗

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