Linux/DS90UB914A-Q1: DS90UB914A-Q1/913 capture image problem

Ben lin

Prodigy 50 points

Part Number: DS90UB914A-Q1

Tool/software: Linux

i am using DS90UB914A-Q1/913 camera to capture image

i can receive 913 camera data and save those，but the image is green. like below:

the 913 camera format is ccir601 8bit （UYVY），1280*720.

any idea about dealing with this problem？

thank a lot！

over 6 years ago

0 Ben lin over 6 years ago

Prodigy 50 points

the ic is imx6 ， the CSI0 Sensor Configuration Register value: CSI_SENS_CONF = 0x00009A00 （External VSYNC mode ，UYVY ， 10BIT_DATA_WIDTH，Sensor Protocol：Gated clock mode）

0 Hamzeh Jaradat over 6 years ago in reply to Ben lin

TI__Guru** 107810 points

Hello Ben,

please measure the PCLK, VSync and HSync between the Sensor and the Serializer and make sure you have the expected values.

Also try to change register 0x03 [0] to change the edge of the Pixel clock.

0 Ben lin over 6 years ago in reply to Hamzeh Jaradat

Prodigy 50 points

between the Sensor and the Serializer PCLK = 66Mhz ，vsync = 25hz，hsync = 16.6khz；the camera can work in qnx-system！

i have tried to change register 0x03 [0] to change the edge of the Pixel clock.But it still capture the image like before！

0 Hamzeh Jaradat over 6 years ago in reply to Ben lin

TI__Guru** 107810 points

Have you measured the same parameters at the 914A output? do you see same values?

0 Ben lin over 6 years ago in reply to Hamzeh Jaradat

Prodigy 50 points

YES, the value 914a output is same as 913a input(pclk, vsync,hsync, and data pin frequence)

0 Hamzeh Jaradat over 6 years ago in reply to Ben lin

TI__Guru** 107810 points

Can you send your schematics and register dump from both sides (SER and DES) per email so that I can review?

0 Ben lin over 6 years ago in reply to Hamzeh Jaradat

Prodigy 50 points

it was done！the imx6q bug that all 8 bit data bin must be connected to from csi_data12 to 19!

otherwish , it will appear this problem！

Interface

Interface forum

Linux/DS90UB914A-Q1: DS90UB914A-Q1/913 capture image problem