DA14680

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太阳,2017-05-28 12

tektronic

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Last seen:3年2蒙特hs ago

加入:2017-05-06 15:06

DA14680

Hello,

I try to understand the Keyboard scanner of DA14680. DS pg. 125, 28.2 Programming - states:

"Following that, the columns have to be programmed in output mode ....
The columns have to be explicitly defined as pulled-up inputs ....."

From above it looks like "the columns" should be outputs and inputs ?
Can you clarify ?

Thank you.

Device:

DA1468x

Mon, 2017-05-29 16:34

MT_dialog

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Last seen:2 months 1 week ago

加入:2015-06-08 11:34

Hi tekronic,

The rows have to be programmed in OUTPUT mode with a dedicated functionallity KB_ROW and the columns have to be set as input pull-up with functionallity as a plain GPIO, seems that there is an error in the datasheet.

Thanks MT_dialog