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https://issues.apache.org/jira/browse/MYNEWT-390?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15512140#comment-15512140
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ASF subversion and git services commented on MYNEWT-390:
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Commit ee3cd755b8a96c93af1580fd0b2270355ad037d9 in incubator-mynewt-core's
branch refs/heads/master from [~wes3]
[ https://git-wip-us.apache.org/repos/asf?p=incubator-mynewt-core.git;h=ee3cd75
]
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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