DS90UB9702-Q1EVM: DS90UB9702-Q1 EVM

Hi Rohit,

Could you please provide a photo of this EVM? This screenshot would suggest that the MSP430 is connected but the UB9702 is not accessible via I2C (either PDB low, I2C disconnected, or other power rails not present).

Best,

Thomas

Please find the photo of EVM

Hi Rohit,

When the EVM is plugged in do you have LEDs D14 and D12 light up? These should be in the top right corner of the board. It would also be helpful to verify the VDD11 and VDD18 power rails. This can be measured on C17 (VDD18) and C45 (VDD11) on the bottom of the board directly below the UB9702.

Best,

Thomas

Yes D14 and D12 are lighting up,I have another same EVK thats working and all the light up are similar and so are the jumpers too.

Hi Rohit,

Have you had a chance to probe the power rails? It could also be helpful to monitor the I2C bus to confirm that both SCL and SDA are pulled up to 1.8V.

Best,

Thomas

HI Thomas,

I read C17 @ 1.780 and C45 @1.08

Hi Rohit,

Is the I2C bus pulled up correct to 1.8V? This could be confirmed by measuring the SCL / SDA pins on the white header J9.

Best,

Thomas

Yes thats correct

Hi Rohit,

Do you have a USB2ANY which you'd be able to hook up to the I2C bus?

Best,

Thomas

Hi Thomas,

I have scheduled a call for tomorrow ,We can debug in the call,Hope that helps faster to resolve the issue.

Sorry Thomas,Can you please share your correct email id

I am based in Ireland,I am available till 6pm tomorrow,Could you please propose the time slot as well

Hi Rohit,

I'm traveling and not available this week. Let's see if there is a time slot for next week.

Best,

Thomas

Hi Thomas,

Can you send your email id?I will send an invite

Please connect with me on E2E and we can message to set up a discussion.