Forums - Power Consumption Rising after SPI_PIO Toggling

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Power Consumption Rising after SPI_PIO Toggling
sunlong
Join Date: 27 Nov 19
Posts: 8
Posted: Tue, 2020-06-09 19:46

Hi,

What I've implenmented:

1. using PIO6 as input to capture rising and falling edge of input signal

2. deepsleep is enabled

 

Problem:

1. Pull SPI_PIO# to ground, works all good

2. after step #1, pull SPI_PIO# to 3V3. from this moment, power consumption rising higher

 

What I tried:

1. disable PIO6 settings

2. after toggling SPI_PIO#, power consumption is as low as expected

 

Would someone share some thoughts on this?

B.R.

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abhghos
Join Date: 27 Aug 18
Posts: 29
Posted: Tue, 2020-06-09 21:29

Asserting the SPIO_PIO enables the debug section of the silicon which contibues to consume power.

In an actual end product the SPIO_PIO is not expected to be asserted for any reason.

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