using CAM0 on the CM3

[gks9754]

I read https://www.raspberrypi.org/documentati ... -camera.md and https://www.raspberrypi.org/forums/view ... p?t=193577
I followed those three steps.
"wget https://www.raspberrypi.org/documentati ... ualcam.dts"
"dtc -I dts -O dtb -o dt-blob-dualcam.dtb dt-blob-dualcam.dts"
"sudo cp dt-blob-dualcam.dtb /boot/dt-blob.bin" OR "sudo cp dt-blob-dualcam.dtb /boot/overlays"

when I did the first step "wget https://www.raspberrypi.org/documentati ... ualcam.dts"
I can get a file "called dt-blob-dualcam.dts", It's at /hpm/pi/dt-blob-dualcam.dts

when I did the second step

Code: Select all

[Usage: dtc [options] <input file>

Options: -[qI:O:o:V:d:R:S:p:a:fb:i:H:sW:E:@Ahv]
  -q, --quiet                
	Quiet: -q suppress warnings, -qq errors, -qqq all
  -I, --in-format <arg>      
	Input formats are:
		dts - device tree source text
		dtb - device tree blob
		fs  - /proc/device-tree style directory
  -o, --out <arg>            
	Output file
  -O, --out-format <arg>     
	Output formats are:
		dts - device tree source text
		dtb - device tree blob
		asm - assembler source
  -V, --out-version <arg>    
	Blob version to produce, defaults to 17 (for dtb and asm output)
  -d, --out-dependency <arg> 
	Output dependency file
  -R, --reserve <arg>        
	Make space for <number> reserve map entries (for dtb and asm output)
  -S, --space <arg>          
	Make the blob at least <bytes> long (extra space)
  -p, --pad <arg>            
	Add padding to the blob of <bytes> long (extra space)
  -a, --align <arg>          
	Make the blob align to the <bytes> (extra space)
  -b, --boot-cpu <arg>       
	Set the physical boot cpu
  -f, --force                
	Try to produce output even if the input tree has errors
  -i, --include <arg>        
	Add a path to search for include files
  -s, --sort                 
	Sort nodes and properties before outputting (useful for comparing trees)
  -H, --phandle <arg>        
	Valid phandle formats are:
		legacy - "linux,phandle" properties only
		epapr  - "phandle" properties only
		both   - Both "linux,phandle" and "phandle" properties
  -W, --warning <arg>        
	Enable/disable warnings (prefix with "no-")
  -E, --error <arg>          
	Enable/disable errors (prefix with "no-")
  -@, --symbols              
	Enable generation of symbols
  -A, --auto-alias           
	Enable auto-alias of labels
  -h, --help                 
	Print this help and exit
  -v, --version              
	Print version and exit

Error: missing files
/code]

[aBUGSworstnightmare]

Compiler can't find the source file. Be sure to run the command from the same directory where you placed the source.
Or adjust the path to the source file.

[gks9754]

what is the source file you're talking about??
Does The file I've gotten "dt-blob-dualcam.dts'" have to be in " /boot" not "/home/pi" ??
but the file couldn't move to other folders;;

[aBUGSworstnightmare]

Change to /boot before you load the .dts file (which is a dt-blob source file).

Than run the device tree compiler command from /boot as well.

[gks9754]

Thank you but after doing what you said, there is the same problem..the file"dt-blob-dualcam.dts" is in the /boot folder..
could you give me more help?

[aBUGSworstnightmare]

open console and change to /boot directory.

Now you should be able to run the compiler

Code: Select all

dtc -I dts -O dtb -o dt-blob.bin dt-blob-dualcam.dts

[gks9754]

thank you I did it..!