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DS90UB926QSEVB: DS926 EVB can't read I2C register on DS925 EVB through FPD-Link cable

Part Number: DS90UB926QSEVB
Other Parts Discussed in Thread: ALP

Dear Sir:

         I connected DS925 EVB(DS90UB925QSEVB) to DS926 EVB(DS90UB926 EVB) with FPD-Link cable(as below picture)

          The ALP SW for DS925 EVB information are below.  DS925 EVB can read I2C register on DS926 EVB through FPD-Link cable.


          The ALP SW for DS926 EVB information is below.  DS926 EVB can't read I2C register on DS925 EVB through FPD-Link cable.

          How to solve " Error: No Partner Device Found: DS90UH925" issue? Must use DS90UH925?? I use DS90UB925QSEVB. thanks!!