i.MX Processorsのトピック回复： IMX8MP use ISP with IMX219

IMX8MP use ISP with IMX219

Lex_tracy — Thu, 21 Nov 2024 09:38:25 GMT

HI, I encountered some problems while developing a MIPI camera and wanted to ask NXP for advice.

I made a DTS of the board we developed by referring to https://github.com/nxp-imx-support/meta-imx8mp-isp-imx219

The board we designed pulls the CSI2 signal to connect to IMX219 and refer to AN13713.pdf for settings.

Find and execute start_isp.sh on the host as shown in the attached picture

After start_isp.sh is completed, start the camera test
"gst-launch-1.0 -v v4l2src device=/dev/video2 ! "video/xraw,format=YUY2,width=1920,height=1080" ! queue ! waylandsink"

The host does not see that gst-launch-1.0 is opened and the screen is displayed as shown in the attached picture.

Have you ever encountered similar problems when developing or porting IMX219? Can you give me some suggestions? Thank you!

回复： IMX8MP use ISP with IMX219

Lex_tracy — Thu, 21 Nov 2024 09:42:44 GMT

JOIN DEBUG IMAGE

回复： IMX8MP use ISP with IMX219

Bio_TICFSL — Thu, 21 Nov 2024 13:59:55 GMT

Hello,

How much RAM memory does your custom board have ? Is the reserve-memory well allocated ?

Plug the camera and try

 gst-launch-1.0 -v v4l2src device=/dev/video2 ! "video/x-raw,format=YUY2,width=1920,height=1080" ! queue ! waylandsink

Regards

回复： IMX8MP use ISP with IMX219

Lex_tracy — Fri, 22 Nov 2024 01:34:16 GMT

Hi,
We use 8G memory
reserve-memory ? Is there any need to change here?
Plug the camera and try. You can refer to the pictures I uploaded.
NEX-002+IMX219_gst-command+debug_message.jpg

回复： IMX8MP use ISP with IMX219

Bio_TICFSL — Fri, 22 Nov 2024 12:35:19 GMT

Hello,

CMA (physically-continuous memory) can be used to make sure that buffers can be used plain with DMA or some other device.
You can specify "CMA=" option among of kernel parameters in u-boot to set any CMA size you wish.

Regards

回复： IMX8MP use ISP with IMX219

Lex_tracy — Mon, 25 Nov 2024 08:15:04 GMT

HI,
Our hardware is 8G but the IMX8 firmware default is 6G
I would like to ask how to adjust the CMA settings correctly. Is there any document I can refer to?