Luckfox Forums

Jan_E

I have now made a close copy of the rv1106-evb-dual-cam.dtsi with no change. Both cameras are entering HS CLK mode but no SoF, IRQ

/* I2C3 for OV9732 camera0 */
&i2c3 {
status = "okay";
clock-frequency = <400000>;
pinctrl-names = "default";
pinctrl-0 = <&i2c3m2_xfer>;

ov9732_0: ov9732@10 ...

Jan_E

Hi,
I did a post yesterday but it seems to have vanished...
I have a custom board with the Core1106 equipped with dual OV9732. I have problems getting them to work. The both enter clock HS mode, readback of the camera registers are accurate but no frames are received, no SoF are detected, no errors ...

Jan_E

I actually managed to "fix" the problem by messing around with the RKDevTool. I tried to read chip info and changed storage just for the purpose of getting any response. Everything I did timed out. I pressed reset just for the sake of it and now it boots. I must have changed something in the MASKROM ...

Jan_E

Hi,
I have a non-eMMC board I tried to boot from SD-card that doesn't work. I get no messages at all from the debug serial port either. The serial port cable is confirmed working on a board with eMMC.
The RKDevTool reports a MASKROM device.
Any help is welcome.

Thanks,

/Jan

Jan_E

In addition, are there any extra components in the MIPI signal path or are there any special considerations that can have an impact?

Thanks,

Jan

Jan_E

Hi,
I have tried to bring up two OV9732 MIPI CSI cameras. I have come to a point where in principle everything has been tried. Driver and the whole pipeline is fully functional and I can read back that the cameras are streaming during capture but I get no data at all. Nor do I get any error flags or ...

Jan_E

Ok, got it!

Jan_E

Hi,
I need to know the electrical signal levels for the CSI interfaces. From the schematic I can see the i2c is pulled up to 3.3V, what about all other signals?
Is there a more comprehensive schematics available?

Thanks!

Search found 8 matches

Re: RV1106B with dual CSI cameras

RV1106B with dual CSI cameras

Re: Non eMMC board, no debug messages after reset

Non eMMC board, no debug messages after reset

Re: Confirm connector placement of MIPI CSI H3+H4

Confirm connector placement of MIPI CSI H3+H4

Re: CSI signal levels

CSI signal levels