DS90UB934-Q1EVM: Connect to customer board

Xiao Zhu2

Hello Team

I used Ds90UB934-Q1EVM to connect customer board. I found it can detect the customer board and the lock led and link led are both light. But can not read the customer board register. So how to solved the problem?

over 7 years ago

0 Steven(Shenzhen) Shi over 7 years ago

TI__Mastermind 30515 points

pls check the 913a i2c ID addr., is it correct?

Steven

0 Xiao Zhu2 over 7 years ago in reply to Steven(Shenzhen) Shi

TI__Expert 3215 points

Yes, read Ser_ID, the I2C ID is right.

0 Steven(Shenzhen) Shi over 7 years ago in reply to Xiao Zhu2

TI__Mastermind 30515 points

so please check:
1. no other I2C master is linked with TI's EVM board together in case of the confliction.
2. pls check how to you read the reg.? can you try it in the "scripting" item?

best regasd,S
teven

0 Xiao Zhu2 over 7 years ago in reply to Steven(Shenzhen) Shi

TI__Expert 3215 points

1. no other I2C master is linked with TI's EVM board together in case of the confliction.
>>No
2. pls check how to you read the reg.? can you try it in the "scripting" item?
>>Canot read through remote register tap. and partner information also display not found remote I2C adress.

0 Steven(Shenzhen) Shi over 7 years ago in reply to Xiao Zhu2

TI__Mastermind 30515 points

If everything is ok but the I2C still failed, you can check it step by step:

1. back channel is working? you can capture the signal in the FPD-Link, whether the back channel and forward channel signal are mixed together? if NOT , pls check the reason.

2. if item1 is ok, pls read the i2c signal in the 934 EVM side, and the 933 camera module side as well, checking whether the ACK has issue or the signal is NOT transmitted from 934 to 933?

best regards,

Steven

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DS90UB934-Q1EVM: Connect to customer board