DS90UB935-Q1: Can't get data from ds90ub954-q1, MIPI input

Hi Qinghua,

Could you provide the script you are using to initialize the system?

- Are you able to initialize the sensor properly?

- Can you check registers 0x61 - 0x63 on the serializer to verify there's valid CSI data coming in?

Best,

Jiashow

Thanks very much for your help。

1. The initial script of ds90ub954 as below:

    i2cWrite(TI954, 0x01, 0x03);
    delay(1000);
    i2cRead(TI954, 0x5B);
    i2cWrite(TI954, 0x32, 0x01);
    delay(100);
    i2cWrite(TI954, 0x1F, 0x03);
    delay(100);
    i2cWrite(TI954, 0x33, 0x03);
    i2cWrite(TI954, 0x4c, 0x01);	//port 0
//    i2cWrite(TI954, 0x4c, 0x12);	//port 1

    delay(100);
    i2cWrite(TI954, 0x0c, 0x81);	//port 0
//    i2cWrite(TI954, 0x0c, 0x16);	//port 1
    i2cWrite(TI954, 0x20, 0x20);	//port 0
//    i2cWrite(TI954, 0x20, 0x10);	//port 1
    delay(200);

    i2cWrite(TI954, 0x58, 0x5E);
    delay(200);
//    i2cWrite(TI954, 0x5B, 0x30);
    i2cWrite(TI954, 0x5C, 0x30);

    i2cWrite(TI954, 0x7D, 0x02);

    i2cWrite(TI954, 0x5D, 0x20);
    i2cWrite(TI954, 0x65, 0x20);

    delay(100);

2. We can show image from  ds90ub954-q1 properly, so the sensor is ok.

3. The value of ds90ub935-q1 is:

0x61:0x2C,

0x62:0x46,

0x63:0x0B

Read several times， and the value didn't change.

And we don't know how to config ds90ub935-q1.

Thanks.

Hello,

There's nothing that stands out to me in the initialization script.

Could you check register 0x02 on the 953 to make sure it is configured correctly?

Also, are you able to read the horizontal and vertical count in 954 registers 0x73 - 0x76? Can you check the PASS status in deserializer address 0x04?

Best,

Jiashow

Hello,

Our debug script as below:

    delay(1000);
    i2cRead(TI953, 0x02, true);
    i2cRead(TI954, 0x04, true);
    i2cRead(TI954, 0x73, true);
    i2cRead(TI954, 0x74, true);
    i2cRead(TI954, 0x75, true);
    i2cRead(TI954, 0x76, true);
    delay(1000);
    i2cRead(TI953, 0x02, true);
    i2cRead(TI954, 0x04, true);
    i2cRead(TI954, 0x73, true);
    i2cRead(TI954, 0x74, true);
    i2cRead(TI954, 0x75, true);
    i2cRead(TI954, 0x76, true);

the "true" means debug open, don't care that.

delay ms,so 1000 meas 1 second.

the output like this:

devadd:0x18     regAddr:0x2:    0x33
devadd:0x3D     regAddr:0x4:    0xDF
devadd:0x3D     regAddr:0x73:   0x4
devadd:0x3D     regAddr:0x74:   0x38
devadd:0x3D     regAddr:0x75:   0xB
devadd:0x3D     regAddr:0x76:   0x46
devadd:0x18     regAddr:0x2:    0x33
devadd:0x3D     regAddr:0x4:    0xDF
devadd:0x3D     regAddr:0x73:   0x4
devadd:0x3D     regAddr:0x74:   0x38
devadd:0x3D     regAddr:0x75:   0xB
devadd:0x3D     regAddr:0x76:   0x46

the device addr, register addr, and the value.

Thanks.

Hello，

Did you find what the problem is?

We still can't get data from sensor.

Thanks.