[ 
https://issues.apache.org/jira/browse/MYNEWT-390?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15512138#comment-15512138
 ] 

ASF subversion and git services commented on MYNEWT-390:
--------------------------------------------------------

Commit 72c74e5b138f272c466d35bdd399330ec9de4c1f in incubator-mynewt-core's 
branch refs/heads/develop from [~wes3]
[ https://git-wip-us.apache.org/repos/asf?p=incubator-mynewt-core.git;h=72c74e5 
]

MYNEWT-390: NRF hal_gpio_read does not return 1 when pin high

This API is supposed to return 1 but was returning 1 << pin. This
has now been fixed so if the pin is high, 1 is returned.


> NRF HAL GPIO was not returning 1 for hal_gpio_read when pin input was high
> --------------------------------------------------------------------------
>
>                 Key: MYNEWT-390
>                 URL: https://issues.apache.org/jira/browse/MYNEWT-390
>             Project: Mynewt
>          Issue Type: Bug
>    Affects Versions: v0_9_0
>            Reporter: William San Filippo
>            Assignee: William San Filippo
>             Fix For: v1_0_0_beta1
>
>
> The HAL gpio API to read an input pin should return 0 if the pin is low and 1 
> if the pin is high. The nrf (both 51 and 52) was returning a non-zero value 
> if the pin was high but not 1 unless pin 0 was being read. It was returning 1 
> left-shifted by the pin number. This API should return only 0 or 1 (not zero 
> and non-zero).



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