Low power mode of MSPM0

Hello SY,

It really depends on what you need to perform at the lowest power sleep modes, and if you have  a limitation on peak current. The M0 power consumption is pretty good and can be comparable to MSP430, again depending on what you need to do.

I will say the strategies are a bit different when comparing between the two platforms. In MSP430, you would always try to run as much as you can at different LPMs, and get to the lowest you can for majority of time. You always have the debate on what clock speed to run the MSP430 to optimize for power. 

For MSPM0, you still have the capability options discussed with MSP430, but you have faster methods of waking up the device than you did in MSP430. So the M0s can respond to things faster, and because they run faster, they can perform actions at full speed/awake mode in a shorter time than MSP430. So the general strategy for MSPM0 to use the lowest amount of energy is to sleep in the lowest power mode that allows for a wakeup signal for the device; Wakeup quickly and respond at full speed of the device to minimize time awake; then go back to the deepest sleep you can. The current profile for this is very spiky when compared to MSP430 as a lot of current is used when fully awake at top speed, but the time is a very small percentage of your sleep time. 

So all of that is to say, you can't really make a broad generalization if one platform is lower current than the other as it really depends on your application, what peripherals you use, and how you utilize them. I can say, you should be able to get to satisfactory current numbers in both platforms, but may take some experimenting on how you do it to achieve.