Hi Kailyn,

To clarify, the customer sees no difference in blanking time on the COMPIN pin, between TIMING_REG[9:0] = 0x100  and TIMING_REG[9:0] = 0x200?

From the TDC1000_C2000 GUI:

TDC1000: Everything You Need to Know for Ultrasonic ToF (FAQ)

Regards,

Gabriel

Hello Gabriel,

Yes, the customer saw no difference in blanking time on the COMPIN pin, between TIMING_REG[9:0] = 0x100  and TIMING_REG[9:0] = 0x200.

Do you know why there is no difference?

Best regards

Kailyn

Hello, 

Just wanted to let you know that our ultrasonic experts are out this week and will be back next week to answer your question. 

Best Regards, 

Hi Kailyn,

I have some questions about the device operation and testing:

- What are the device CONFIG_1, CONFIG_2, and CONFIG_3 settings?

- Is the customer able to read back the TIMING_REG register values after being written/before taking a test measurement?

- Can the customer provide a scope plot of COMPIN from a test measurement?

Regards,

Gabriel

Hi Gabriel，

The configuration is 54 47 02 0b 11 c3 e8 03 03 02。He could read back the  TIMING_REG value and it is the same before/ after being written.

The scope of COMPIN is the yellow line.

Best regards

Kailyn

Hi Kailyn,

Could he send scope plots of COMPIN scaled to see this level of detail:

Has he confirmed that communication between the host and TDC1000 is behaving as expected?

I checked the register config values in the EVM GUI: 

If this is correct from the given values (54 47 02 0b 11 c3 e8 03 03 02) then what is meant by 0x3 for the ERROR FLAG(0x7) register? One of those fields is read only. Is the measurement timing out without completing?

I am able to read and write the TIMING_REG:

Regards,

Gabriel