Hi, all:
According to "some experience when enable mipi camera". When the data lane rate is 216Mhz, the clock must be 216/2Mhz. And according to "debug step for customer mipi sensor", I setting the CSI2_PHY_TST_CTRL1 is 0x40(100-110Mhz). But the debug information is that:
1. First time:
In csi2_init - mipi csi2 error1 reg is 0
In csi2_init - mipi csi2 error2 reg is 0
In csi2_init - mipi csi2 dphy status is 210
2. second time:
In csi2_init - mipi csi2 error1 reg is 0
In csi2_init - mipi csi2 error2 reg is 1700
In csi2_init - mipi csi2 dphy status is 210
In csi2_init - mipi csi2 status is 1
Can you give me some advice to solve this issue. Thanks.
B.R
- john
John, hello !
Please look at the following threads :
About calculation of mipi clock in i.MX6DQ.
Have a great day,
Yuri
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Hi, Yuri:
Thanks! I have done it like that, but didn't work. The signal of csi2 interface in the line is incorrect.
I think that, if i initial D-PHY layer correct. and the sensor send a test signal in the line. I can capture the correct csi2 waves in the line. But now, the waves in the line have incorrect voltage levels. I config the D-PHY layer correct according official manual. And match the external clock correct.
B.R
John
Hello,
I think it make sense to try the HS mode only. Configuring Low Power transitions is controlled via Enable_low_power bits in MIPI_DSI_VID_MODE_CFG [8:3] : disable them
Regards,
Yuri.
Hi, all:
How can I know the D-PHY is working.
B.R
- john