Original question:
DS90UB941AS-Q1: Which states need to be restored manually, otherwise they will not work properly
We have a problem. One display doesn't light up. The display manufacturer said there was a problem with the output polarity of our PCLK, so I wonder if we can change this in ub941 chip? I tried to change this DSI0_CLK_PN_SWAP swap value, but it doesn't work.
Please check the following related issue wave:
Pclk
DE
HS
VS
This display is ok on other host platform.
Pclk
DE
HS
VS
Hello Chen,
928 is an OLDI output deserializer so there are actually 7 bits per clock cycle like this:
So I'm not sure exactly what you mean about inverting the clock. This is the standard clock topology for OLDI
Best Regards,
Casey
Hello Chen,
Ok that makes more sense. To change the 926 clock from rising edge to falling edge you can use the control in register 0x03:
Best Regards,
Casey
