P0_2电压

⚠️
Hi there.. thanks for coming to the forums. Exciting news! we’re now in the process of moving to our new forum platform that will offer better functionality and is contained within the main Dialog website. All posts and accounts have been migrated. We’re now accepting traffic on the new forum only - please POST any new threads at//www.xmece.com/support. We’ll be fixing bugs / optimising the searching and tagging over the coming days.

2 posts / 0 new

Last post

Wed, 2017-05-17 05:30

ericxiong

Offline

Last seen:2 years 2 months ago

加入:2015-08-16 08:22

P0_2电压

Hi all，

A 4.7K pull-up resistor is used to connect the GPIO pin P0_2.We set the pin as high level input state,however,the voltage between the pullup resistor is not zero.So the resistor comsumes about 10 uA.
The 4.7K pull-up resistor connecting the GPIO pin P0_4 and P2_0 comsumes no current.

Should I use another pin to decrease the standby current?

Keywords:

P0_2

voltage

PULLUP

Device:

DA14580

Wed, 2017-05-17 16:46

MT_dialog

Offline

Last seen:1 month 1 week ago

加入:2015-06-08 11:34

Hi ericxiong,

I am not sure i get the question, i suppose that you are wondering why there is the 10uA current flow, i suppose that the external pullup has a slightly different voltage, so i assume that by configuring the pin without the internal PULLUP but just plain INPUT it would prevent the current flow.

Thanks MT_dialog