Today Zach and I are playing with powersaving modes on The Public Radio. This was all done with this commit; cases were tested by commenting out lines 42, 45 and 46 and varying volume via our potentiometer. Current is being measured on Vout of the VREG on hardware v1.1.
- MCU ON (sleep disabled)
- Amp OFF (shutdown enabled)
- Si4703 ON
- .019A
- Si4703 OFF
- .004A
- Si4703 ON
- Amp ON (shutdown disabled)
- Volume @ 100%
- Si4703 ON
- .050-.100A
- Si4703 OFF
- .004A
- Si4703 ON
- Volume @ 0%
- Si4703 ON
- .026A
- Si4703 OFF
- .004A
- Si4703 ON
- Volume @ 100%
- Amp OFF (shutdown enabled)
- MCU OFF (sleep enabled)
- Amp OFF (shutdown enabled)
- Si4703 ON
- .016A
- Si4703 OFF
- .004A
- Si4703 ON
- Amp ON
- Volume @ 100%
- Si4703 ON
- .030A-.090A
- Si4703 OFF
- .004A
- Si4703 ON
- Volume @ 0%
- Si4703 ON
- .023A
- SI4703 OFF
- .004A
- Si4703 ON
- Volume @ 100%
- Amp OFF (shutdown enabled)
There are some weird things going on here. Our powersaving mode isn't having quite the effect we're looking for, either.
More work to come.