Linux/DS90UB964-Q1: DS90UB964 NO Image output

yabin zhang

Part Number: DS90UB964-Q1

Tool/software: Linux

hi engineer：

Now,i am useing ds90ub913 + 1ds90ub964+imx6，i have some problem,please help me solve these problem ,thank you

1.ds90ub964 has 1lane, 2lane, 3lane, 4lane, etc., I set to 4lane. At the IMX6 side only 2lane (only two sets of data lines), 964 output pixel is 1280x720 @ 25fps, format YUV422. In this case, whether the data can be read correctly.

2.I used the test program to read the camera data, has been reported a mistake. mipi csi2 can not recevice sensor clk! MIPI_CSI_PHY_STATE = 0x630

over 7 years ago

0 Steven(Shenzhen) Shi over 7 years ago

TI__Mastermind 30515 points

Hi Yabin,
Thanks to select TI's solution.
1. As i.MX6's CSI2 lane rate is ~800Mbps, if using 2lanes only, it can't support 4cameras' data throughput. But i.MX6 has totally 4lanes for CSI2 port, so please try to use these 4lanes. of course, if you only design 2lanes, you can support 2cameras for this case.
2. please see below link for one reference script in ~page22, please secure you can enable CSI2 port through register 0x33 [0], which is disabled in default.
www.ti.com/.../getliterature.tsp

best regards,
Steven

0 yabin zhang over 7 years ago in reply to Steven(Shenzhen) Shi

Prodigy 50 points

thanks for your replay,I'm looking for a 4lanes to try

0 yabin zhang over 7 years ago in reply to yabin zhang

Prodigy 50 points

If i put ds90ub964 configured as 2lanes, is it feasible

0 Steven(Shenzhen) Shi over 7 years ago in reply to yabin zhang

TI__Mastermind 30515 points

Yabin,
dependent on the camera ports, the 2 lanes can't support totally 4 camera inputs.

best regards,
Steven

0 yabin zhang over 7 years ago in reply to Steven(Shenzhen) Shi

Prodigy 50 points

I use a camera input, imx6 can also be measured HS and VS, but with the application can not capture data

0 Steven(Shenzhen) Shi over 7 years ago in reply to yabin zhang

TI__Mastermind 30515 points

please see below link for one reference script in ~page22, please secure you can enable CSI2 port through register 0x33 [0], which is disabled in default.
www.ti.com/.../getliterature.tsp, and then6, check the register 0x73~0x76, what is the line number per VS and pixel number per HS. This is to make sure that the FPD-Link can accept the camera data correctly.

best regards,
Steven

0 yabin zhang over 7 years ago in reply to Steven(Shenzhen) Shi

Prodigy 50 points

ov5640 has worked on imx6,As for 964 hardware init,i refer the script in page22,FPD-link can accept the camera data correctly,but no data received on imx6.Whether the need to modify the ipu decoding code？

0 Steven(Shenzhen) Shi over 7 years ago in reply to yabin zhang

TI__Mastermind 30515 points

Yes, you need make sure you have correct CSI2 forwarding in register 0x20, ox32/33, etc.

best rgds,
Steven

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Linux/DS90UB964-Q1: DS90UB964 NO Image output