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AD7617 Software Serial Mode No Busy signal after "CONVST" goes high

Question asked by adecker on Mar 19, 2018
Latest reply on Mar 20, 2018 by jcolao

We have a AD7617 which follows the standard layout for 1-wire Software Serial Mode. 


All of the registers are the default values, and the self test bit is 0 (so it passed). When I raise the "CONVST" line, I do not get anything on the busy line and from what I understand this should go high while the ADC is converting. When I attempt to read the conversion codes over SPI I just get [0x80, 0x00, 0x80, 0x00]. 


Am I missing something here?