S32 Design Studio中的主题 S32v234 Stereo camera demos problem

S32v234 Stereo camera demos problem

giulioscalia — Tue, 13 Nov 2018 10:30:26 GMT

Hi,

We built a linux BSP (v18.0) using yocto, along with the meta-adas layer, but we are having problem running the provided demos.

Our system is a s32v234 sbc, using 2 Sony imx224 cameras.

In particular we are having problem with the demos isp_stereo_calib and isp_stereo_apexbm, here it is what happens:

We are sure that the cameras are both individually working (we tried switching them in both bus) and, moreover, we successfully ran the isp_sonyimx224_csi_dcu_cam_switch.

Does anyone have the same problem? Does anyone know what could cause this behaviour?

We tried also to investigate the provided isp graph to find it out, but without documentation we were not able to make it work. Is it possible to have such documentation?

Thanks in advance.

Re: S32v234 Stereo camera demos problem

jiri_kral — Tue, 13 Nov 2018 15:34:02 GMT

Hi,

I can reproduce your issue with Linux BSP included in VSDK RTM_1.2.0_HF1. I'll contact Vision team.

Jiri

Re: S32v234 Stereo camera demos problem

jiri_kral — Thu, 15 Nov 2018 14:53:32 GMT

Hi,

the camera has Master/Slave mode. For isp_stereo_calib demo you need to connect Master camera into MIPI-A slot and Slave into MIPI-B. Here is Master/Slave settings:

https://www.nxp.com/downloads/en/schematics/S32V-SONYCAM-SCH.pdf

Here how the Master/Slave cam looks:

For slave you need to remove the right resistor and short the middle one. With this settings I can see clear images for isp_stereo_calib demo.

The isp_stereo_apexbm demo - have still the very same result as you and no update from Vision team yet.

Jiri

Re: S32v234 Stereo camera demos problem

giulioscalia — Tue, 20 Nov 2018 16:47:25 GMT

Hi Jiri,

Thanks for the support, after applying the hardware modification you suggested, the calibration is working correctly, but the apexbm demo show some lines in the output a little bit strange: here is the screenshot

My hand can be clearly seen but much of the output in not comprehensible (or at least to me), is it normal?

Thanks,

Giulio

Re: S32v234 Stereo camera demos problem

KushalShahNXP — Mon, 26 Nov 2018 16:42:54 GMT

Hi giulioscalia‌,

The lines in the demo is due to incorrect working of remap function that this demo uses.

This issue is known and is fixed for next release of Vision SDK.

Thanks,

Kushal