DS90UB948-Q1: DS90ub948 Eq_Status Register question

Hello Jimmy,

can you please tell me what is the background of the question, and what info are you expecting?

Hamzeh,

    The screen went black when the system was upgraded

Jimmy,

which Cable are you using and how long is it?

Hamzeh，

     I will check this for you, if the screen  black, reset the DS90ub948 PDB pin, screen display ok.

Could you please help us confirm what each value ds90ub948 0x3B means by EQ Status? 

0X3B value is 27,17,0f,2f

Hamzeh

         which register of 948 can be used to judge the quality of the signal input from 947， What is the EQ value indicates that the signal quality is very poor;

The same 948 display can be connected to different 947 mainframes. at the 948end obtained EQ values  are different. what is the reason?

Hello Jimmy,

I recommend you to use the Margin analysis tool which is integrated in our ALP software. This tool will judge the quality of your link.

For more details please refer to:

Hi Hamzeh,

    Thanks for your help.We don't have a ub948 Demo

if This product is installed in the car to start,the screen  black, reset the DS90ub948 PDB pin, screen display ok.

if reset the DS90ub947 PDB pin,screen no display,then test ds90ub947 output(ds90ub948 input) have signal, ds90ub948 output no signal output.

• This can confirm that it may be the problem on the 948 side

• Besides reset PDB, is there any other way to solve the 948 no output problem?

Thanks!