Question on whether setting can be changed without reset during PPG measurement in ADPD410x

During PPG measurement in ADPD410x, we ask if the following settings can be changed without reset.
(1) LED intensity
(2) Number of Pulses
(3) Time slot
(4) TIA gain

Any advice would be appreciated.

  • +1
    •  Analog Employees 
    on Oct 22, 2020 2:02 PM 1 month ago


    You can put the device in "Standby" mode instead of software resetting everything. In "Standby" mode, you can rewrite all these settings freely. 

    Theoretically speaking, you can write those settings in "Go" mode, but it is strictly NOT recommended. It could cause few samples to be corrupted. So, we always recommend putting the device in "Standby" mode by writing OP_MODE to 0, make all the changes and putting the device back in "Go" mode. "Standby" mode is a very low power mode (~200 nA).