Accessing Camera on RP4 using serrializer MAX96717F AAK

Something similar ? ...

https://www.youtube.com/watch?v=sloHcU3nP-I

Thank you for your response dougw 

Its somewhat similar but he is using a different version. Although i am also using the same approach but still i get that error (No cameras available). I am not sure what i am doing wrong here. I am following the User Guide provided by Analog Devices. (https://www.analog.com/media/en/technical-documentation/user-guides/maxgs96717fr-user-guide.pdf)

I set up the addresses using the GMSL SerDes Gui. When i connect to RP4 using micro to usb cable, I get the address on (i2cdetect -y 1) 

But when i try to access camera using (libcamera-still) it gives error.  

Thanks again! 

Hi,

One probable reason you were not able to communicate to the board is that, it is not configured properly. I think you need to systematically debug the issue

1) Keep a windows PC/Laptop which has  GMSL SerDes Public GUI Software installed. This software is used to configure the serialize and deserialize hardware.
2) Connect both the EVAL board to the PC/Laptop using USB cable and make sure that both are getting detected in the software
3) Make the necessary configuration changes using the software on both the boards

Note: Raspberry Pi is detecting the I2C Addresses because the board is connected to the SCL/SDA pins of raspberry pi. You should be making necessary config changes using this I2C interface. Otherwise it's not going to do anything! If you know the configuration register values, Write it to the board using i2cset command or by writing a python script  using smbus library.

My strong recommendation will be to use the evaluation software to configure the hardware before you try the later.

Regards,

Aswin

Thank you so much for your response. 

Actually i am following the guide and i configure the board according to the guide. The problem is once i finish setting up the registers, I try to run libcamera and it shows no camera available. Without connecting the SDA SCL. On the other hand when ever i power cycle the boards, all the settings are reset.

Still unable to understand how to set the registers using GMSL Gui. 

There's no proper guide from which i can take help. 

If you want to configure the board using RPi I2C then you need to make the connection. Else you dont need that connection. UI will do it for you. UI is talking to the micro-controller though the onboard USB. You will have to run the command in the UI to set the register values

eg: 0x04,0x80,0x03,0x80,0x00 // no of I2C transaction, I2C slave Address, Register address High, Register Address Low, Register value.

Can you share a picture of your setup?

I am not sure what will be the best and easy approach to configure the board. But i am mostly depending on GMSL Gui. 

The e.g you wrote here. I am unable to understand that where to run this command.  On Gui i can either read/write registers or i can load a script (which i have been unsuccessful because it says read error). 

aswinvenu Can you help mate? i am getting confused with the CFG configuration for this device. Thank you