topic Re: iMX8M Plus - 8 Lane CSI in i.MX Processors

iMX8M Plus - 8 Lane CSI

MPUUser — Mon, 04 Dec 2023 08:07:21 GMT

Hi,

I understand iMX8MPlus supports 2 x 4 lane MIPI CSI-2, i.e. it supports 2 camera each with 4 lane MIPI CSI-2. Can it support a single camera (single image sensor) that requires 2 x 4 lane MIPI CSI-2?

Re: iMX8M Plus - 8 Lane CSI

joanxie — Mon, 04 Dec 2023 09:45:16 GMT

each imx8mp mipi csi can support up to 4 lane, couldn't support 8 lane, but could you tell me what camera needs 8 lane?

Re: iMX8M Plus - 8 Lane CSI

MPUUser — Mon, 04 Dec 2023 10:09:16 GMT

Hi Joan,

I understand each MIPI can support up to 4 lanes.

Can I combine both MIPI 4 lanes to handle a single image sensor that requires 2 x 4 lanes MIPI CSI interface? One example is OMNIVISION’s OV13870. Can iMX8M Plus support this OMNIVISION image sensor? Can the iMX8M Plus merge data from both the MIPI interface to become a single image? Or it will always treat both MIPI interface as 2 separate images?

Usually image sensors with higher number of pixels (> 10MPix) will require more than 4 lanes due to the speed limitation of each lane.

Re: iMX8M Plus - 8 Lane CSI

joanxie — Thu, 07 Dec 2023 02:19:50 GMT

Can iMX8M Plus support this OMNIVISION image sensor?

>yes, current bsp supports ov2775 and ov5640 as default

Usually image sensors with higher number of pixels (> 10MPix) will require more than 4 lanes due to the speed limitation of each lane.

>imx8mp mipi csi can support 1.5Gx4=6Gbps, if your sensor is 10M@30, this is 10x30x16=4.8G<6G, and you can current ISP can support up to 12M camera, so I don't think you need use dual mipi csi to one camera

Re: iMX8M Plus - 8 Lane CSI

MPUUser — Thu, 07 Dec 2023 07:55:11 GMT

Hi Joan,

What about OV13870. Can it be supported?

There are sensors with much higher resolution (eg 20MP) and they need 2 x 4 MIPI lanes per sensor.

Can iMX8M Plus support such sensors?

Re: iMX8M Plus - 8 Lane CSI

joanxie — Thu, 07 Dec 2023 12:08:55 GMT

unfortunately imx8mp couldn't support this

Re: iMX8M Plus - 8 Lane CSI

joanxie — Thu, 07 Dec 2023 12:53:46 GMT

imx8mp doesn't support vc