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When read/write data to AD5522,BUSY keep high level

Question asked by liuqiushe on Apr 25, 2017
Latest reply on Apr 26, 2017 by thomas.abiog

1.When I write the data to AD5522 and then read the data, the BUSY pin keep high level. Normal there have a falling edge jump. But we can get the right data(the same result by EVB testing)
2. Ser FV/FI, and when write voltage/current, the voltage/current value remain unchanged.
3. Then we test some pin for the output voltage with 3.3V high level. EVB is 5V, si if that will effect it
4.The programm based on CPLD was writed by myself
So would you like give some suggestion on that.