DS90UB936-Q1: DS90ub936 output problem

Jimmy Huang22

Part Number: DS90UB936-Q1

Hi,

I used DS90ub936 with sensor ds90ub933 input port0,only set ds90ub936 0x33(0x01) enable CSI output, then test DS90ub936 Lock Pin is High,but CSICLK no output clock,always is high voltage

whether need to set other more registers?

the DS90ub936 Mode pin set to RX mode RAW10

SCH as attachmentDS90UB936-Q1.pdf

over 6 years ago

0 Casey McCrea over 6 years ago

TI__Guru** 103215 points

Jimmy,

You need to forward the RX0 port to the CSI transmitter. See datasheet section 7.4.28 of the 936 datasheet.

Best Regards,
Casey

0 Jimmy Huang22 over 6 years ago in reply to Casey McCrea

Expert 1470 points

Max,

Currently, the master controller Imax6 can capture csi-2 signals and output them, as shown in the figure below, but the color is not correct.

1, According to the information from the camera side, ds90ub933 output yuv422 10bit data, resolution 1280* 304,50 FPS, one camera

the ds90ub936 set

{0x70, 0x1e}, //yuv422 bit10
{0x7c, 0xa0}, //hight 8bit

the master controller Imax6 configured video format is YUV422, 8BIT

2, Could you pls help us confirm whether it is ok for above configured video format ? and give us some advise? thanks!

0 Casey McCrea over 6 years ago in reply to Jimmy Huang22

TI__Guru** 103215 points

Hello Jimmy,

If the camera side is outputting YUV422 10 bit but your processor is expecting YUV422 8 bit, then you should expect incorrect colors. TO get correct colors you would need to configure your imager to output YUV422 8 bit.

Best Regards,

Casey

0 Jimmy Huang22 over 6 years ago in reply to Casey McCrea

Expert 1470 points

Casey,

Can ds90ub933 support YUV422 8bit? how to set ds90ub933 support Yuv422 8bit？ thanks

0 Casey McCrea over 6 years ago in reply to Jimmy Huang22

TI__Guru** 103215 points

Hello Jimmy,

Yes, set the 933 into 10 bit mode and only use the lower 8 inputs or upper 8 inputs for the data. On the DES side, set the registers for 8 bit processing as you mentioned in your previous post.

Best Regards,

Casey

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DS90UB936-Q1: DS90ub936 output problem