DS90UB941AS-Q1: hardware issus

Hi Albert, 

I am unclear on the request here. Are you asking for a timing diagram from a MIPI DSI source? What exactly are you trying to do? 

Best,

Shu

Yes Shu, we want to know how to get a timing diagram from a MIPI DSI source

Hi Shu,

The source mipi timing is standerd, and i want to know HSA、HBP these params are refer DS90UB94AS or LCD？ and do you have any software initial sample code for referance?

Hi Yao Jun, 

The timing parameters listed typically come from a display panel/LCD and can be found in their datasheet. The 941 does not generate these parameters. 

The DSI source needs to be programmed with the supported timing of the LCD to transmit video to the 941. Below is the 941 DSI Bring Up Guide that provides a walkthrough of some example bring up scenarios. 

www.ti.com/.../snla356.pdf

Do you have a specific DSI video mode you are configuring for? The available modes are:

• Non-burst mode with sync pulses

• Non-burst mode with sync events

• Burst mode

The only initialization needed for the 941 are the DSI configurations associated with the above modes. I can help with the sample code if you know which mode the DSI Source is using. 

Best,

Shu