DS90UB940-Q1: Set period from FE to FS

nagashima

Prodigy 20 points

Part Number: DS90UB940-Q1

I want to know how to set the period from FE to FS.

DS90UB940-Q1 DataSheet :

According to Figure 13, the period from FE to FS is 1 to 2^16 tLPX.

According to chapter 8.4.3 CSI-2 Interface, the following is written.

"Upon the end of the vertical sync pulse (VS), the DS90UB940-Q1 generates the Frame End and Frame Start synchronization packets within the vertical blanking period.

The timing of the Frame Start will not reflect the timing of the VS signal."

And According to Figure 29, Frame Branking is (1 to N)tLPX.

I think DS90UB940-Q1 can adjust the period from FE to FS.

But, I do not find the setting register.

Please teach me.

over 6 years ago

0 Casey McCrea over 6 years ago

TI__Guru** 103215 points

Hello Nagashima,

In the CSI indirect registers, addresses 0x0C and 0x0D control the gap between FE and FS.

0x0C = Frame Gap [7:0]
0x0D = Frame Gap [15:8]

Best Regards,
Casey

0 nagashima over 6 years ago in reply to Casey McCrea

Prodigy 20 points

Dear Casey-san

Thank you for information.
I confirmed that changing the value of the register can adjust the FE-FS period.

Thank you!

Best Regards,
Nagashima

Interface

Interface forum

DS90UB940-Q1: Set period from FE to FS