i.MX Processors中的主题 Re: Do you support RGB888 format camera?

Do you support RGB888 format camera?

xiaochaoxu — Fri, 09 Mar 2018 03:48:17 GMT

I am using rgb camera on imx6q.
I am getting "ERROR: v4l2 capture: mxc_v4l_dqueue timeout enc_counter 0".

Could you please help us & give idea to debug this issue.

The camera interface is mipi & connected to CSI1 & ipu0.

Do you support RGB888 format camera?

Re: Do you support RGB888 format camera?

joanxie — Mon, 12 Mar 2018 06:29:31 GMT

yes, imx6q can support rgb888, 1080p@30, pls check if you set the register correctly. one also can refer to the document as below. hope helpful for you

https://community.nxp.com/docs/DOC-339925

Re: Do you support RGB888 format camera?

xiaochaoxu — Fri, 16 Mar 2018 07:35:34 GMT

thanks!

LVDS camera 转mipi芯片完成。

输出1280x480 30fps RGB888 数据

按照文档检查问题:

mipi camera选择IPU0 & CIS1,需要将mipi-csi2 virtual channel配置为1.默认是配置的是0

MIPI_CSI_PHY_STATE的值为0x300和0x330

MIPI_CSI_ERR1/2 的为0

无任何报错。

IPU相关寄存器也有查看，设置的没问题

一直是ERROR: v4l2 capture: mxc_v4l_dqueue timeout enc_counter 0

问下：

平台是支持RGB888数据格式camera，请问代码上有支持吗？还是需要相关patch ？

Re: Do you support RGB888 format camera?

joanxie — Mon, 19 Mar 2018 04:47:03 GMT

你的信息太少了，只能给一些建议，请问你用的是什么版本的BSP？还有你用过IMX TEST 去测试吗？然后试试用小一点的例如640,480，也会出错吗？有的时候I2C配置问题会导致这个问题，你也可以检查下

Re: Do you support RGB888 format camera?

Aubineau_FAE — Mon, 19 Mar 2018 07:25:30 GMT

Hi,

On i.MX6 you can support RGB888 but you need external glue (FPGA/CPLD) to split each transfer in 2 as RGB888 is not supported by the interface natively (RGB565 max, or YUV 20bit max).

regards,

Vincent