DS90UB949-Q1: no image

Hello Qianqian,

There is no extra configuration needed to pair with 926. Are you using EVM hardware or a custom board? Also, what is the input TMDS clock frequency to 949?

Best Regards,
Casey

I don't know if their is something wrong with DS90UB949,~

I use DS90UB925 and DS90UB926, pattern test is OK~

Hello Qianqian,

The registers on the 949 indicated that there is no link detected between 949 and 926 at all. What hardware are you using for this test? Is it EVM hardware or a custom board?

Best Regards,
Casey

Hello Casey，
I am using a customer board ~~
Finally we'll use 925 and 926, I think 949's clock frequency is not OK.~~

Another stange phenomenon,
I use DS90UB926 with a AMOLED screen, When I use the pattern mode of DS90UB926, the screen will bright or off with no regular.
And when the screen is off, it's not useful to reset the driver of AMOLED screen, only reset the DS90UB926 that can wake up the screen~


one more question ,
when I am using DS90UB926 pattern mode , and the host with DS90UB925 is ready to transfer vedio signal, can my MCU know the status and set the DS90UB926 to　normal mode?

Hello Qianqian,

Can you provide a timing spec for the display panel?

Best Regards,
Casey

Can I mail you ? because the display panel is not released now~