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Accessing Camera on RP4 using serrializer MAX96717F AAK

bugtech

Hi Folks! 

I want to access the camera on RP4 while using the Serializer MAX96717F AAK and deserializer MAX96714F BAK. 

I am unable to find any step by step guide to follow. Like is it just plug and run or do i have to configure the addresses. 

If anyone here could help in this regard. I am new to serializers. 

After making the connection. If i try to open camera using (libcamera-hello) command, It gives error that no cameras available.

Thank you!

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  • 0

    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

  • 0 in reply to aswinvenu

    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. 

  • 0 in reply to bugtech

    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?

  • 0 in reply to aswinvenu

    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). 

  • 0 in reply to bugtech

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

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