RTOS/DS90UB960-Q1: Inquiry about register setting of UB960 & UB935

Hi SeungRyong,

Since you are using two serializers (one from D3 and one from LI) and two cameras, you would need to differentiate between the serializers and camera modules by setting Alias IDs.

First, select the Port you are looking at (register 0x4C):
- The serializer ID should be 0x30. You can verify it by checking register 0x5B.
- Set the serializer alias ID at register 0x5C. This should be even and should not be the same as any other IDs.
- Verify if your camera address ID is 7 bits or 8 bits. If it's 7 bits, then your actual camera ID is 7 bits + 0 bit (left shifted by 1 bit)
- Here, we assume the camera address IDs are 7 bits.
- Then the SlaveID[0] should be 0x21<<1U for D3 module and 0x68<<1U for LI. This is your camera ID.
- Set the camera alias ID at 0x65. This should be even and should not be the same as any other IDs.
Now, you should just use the alias IDs to communicate to the desired device.

For example, let's say your LI camera is in port 1. You would initialize it this way:
{0x4C, 0x02, 0x10}, /* 0x01 */
{0x5B,0x30, 0x10}, /* set up serializer ID*/
{0x5C,0x18, 0x10}, /* set up serializer alias ID*/
{0x5D,0x68<<1U, 0x10}, /* set up slave/camera ID, make sure 0x68 is your 7 bit address, if it's 8 bits, then no need to shift*/
{0x65,0xC4, 0x10}, /* set up slave/camera alias ID */

Now, you can communicate to the LI serializer via I2C address 0x18 and LI camera module via I2C address 0xC4.

Best,
Jiashow

Hi SeungRyong,

I am not sure why the example code says so. Register 0x5D is slaveID[0], register 0x5E is slaveID[1], and register 0x65 is SlaveAlias[0].

We are unable to share the UB960 datasheet yet; however, you can use the DS90UB954-Q1 datasheet as reference. Most of the registers should be the same.

Best,
Jiashow