I have been successfully using the LTC2945 in continuous scan mode, and now I need to change to Snapshot mode to increase the throughput. Shown below is the I2C scl (Blue) and SDA (red).
The 1st 3 bytes write 0x85 to the control (00) register to start the AD conversion. The next 4 bytes read the control register looking for the ADC busy bit which reads 0x8d, so the ADC is not completed. There is a 1ms delay before the control register is read again and this time it is 00. The data sheet shows a minimum conversion time of 60ms. Proceeding to then read the A/D registers yields 0xff for all readings. I trust this is not the expected behavior and I'm looking for suggestions/comments.
A side comment: I could not find in the data sheet if the Control register Snapshot bit (A7) is cleared after the conversion is complete as well as the ADC busy bit (A3). Thanks for any help!
