topic Re: MAX9286 Frame synchronization in i.MX Processors

MAX9286 Frame synchronization

dqz — Fri, 31 Mar 2017 09:53:25 GMT

now i use BSP 3.10.53, i use MAX9286+MAX96707+ISX016,

camera is 1280*800；30fps;

my configure:

max9286_write_reg(0x01, 0x00);
max9286_write_reg(0x63, 0x00);
max9286_write_reg(0x64, 0x00);

max9286_write_reg(0x06, 0x00);
max9286_write_reg(0x07, 0x7C);
max9286_write_reg(0x08, 0x92);

....

mipi_csi2_reset(mipi_csi2_info, (576 * g_sensor_num) / (lanes + 1));

in dts ：

&mipi_csi{

....

lanes = <4>

....

when i connect only one camera i can get image correct.

but when i connect two camera,it can not get Frame synchronization locked:
log:

max9286_mipi: sensor number = 2.
mxc_mipi_csi2 21dc000.mipi_csi: mipi_csi2_reset: mipi_lane_bps = 288 Mbps
mxc_mipi_csi2 21dc000.mipi_csi: mipi_csi2_reset: value = 0x28.
FAT-fs (mmcblk3p1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.
max9286_mipi: reg 0x31 = 0x0.
max9286_mipi: reg 0x30 = 0x0.
max9286_mipi: reg 0x31 = 0x3f.
max9286_mipi: reg 0x30 = 0xfe.
max9286_mipi: reg 0x31 = 0x3f.
max9286_mipi: reg 0x30 = 0xfe.
FAT-fs (sda1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.
mipi csi2 can not receive sensor clk! MIPI_CSI_PHY_STATE = 0x6f0.

Re: MAX9286 Frame synchronization

igorpadykov — Fri, 31 Mar 2017 10:47:16 GMT

Hi dq

please check below link for several cameras usage

https://community.freescale.com/docs/DOC-328548

Best regards
igor
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Re: MAX9286 Frame synchronization

dqz — Sat, 01 Apr 2017 06:09:21 GMT

Thank you for your reply , I have been looking , and found no useful information

anyone can give some help

Re: MAX9286 Frame synchronization

igorpadykov — Sun, 02 Apr 2017 23:52:29 GMT

Figure 19-1 shows how multiple cameras may be used, so try to

verify that cameras used different CSIn.

Re: MAX9286 Frame synchronization

johnson_jl — Thu, 25 May 2017 03:16:32 GMT

Have you solved this problem? I have same HW as your design, and I even can not detect the MX96707. Would you please paste your MAX9286 configuration codes?

Re: MAX9286 Frame synchronization

gaozhihe — Fri, 26 Oct 2018 13:51:23 GMT

Have you solved this problem? I also encountered ”MIPI_CSI_PHY_STATE = 0x6f0“ problems.

I have been looking, and found no useful information
anyone can give some help