AnsweredAssumed Answered

Minimizing power consumption: what can be done?

Question asked by keepcoding on Sep 27, 2013
Latest reply on Sep 27, 2013 by Clive One
Hi

I'm a bit confused with all the clocks and power saving options on the STM32F3 Discovery board.
I'd like to minimize the power consumption by gating all unnecessary clocks and peripherals / memory.
The MCU is in sleep mode and will wake up every 100 ms so do some calculations (~10ms). The GPIOA + B, DMA, SPI and RAM need to be enabled all the time (that's why I can't use stop mode). 
Are all unused peripherals disabled per default or do I need to disable everything manually?
Which other clocks can I disable?
Would it make sense to lower the system clock frequency?
What else could I do to reduce the power consumption?

Thanks in advance for any advice

Outcomes