<p><a class="user-mention" data-hovercard-type="user" data-hovercard-url="/hovercards?user_id=64743" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://github.com/benemorius">@benemorius</a> thanks for the fixes. I have a few comments about the <code>uart_poweron</code>/<code>uart_poweroff</code> methods.</p>
<p>I was able to reproduce this issue with latest <code>master</code> on the STK3600.</p>

<p style="font-size:small;-webkit-text-size-adjust:none;color:#666;">—<br />You are receiving this because you are subscribed to this thread.<br />Reply to this email directly, <a href="https://github.com/RIOT-OS/RIOT/pull/12278?email_source=notifications&email_token=ABE7WYBFFWYYVUIXUQY623TQKY6VHA5CNFSM4IYSD2H2YY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOD7IUGUQ#issuecomment-533807954">view it on GitHub</a>, or <a href="https://github.com/notifications/unsubscribe-auth/ABE7WYGF6Z3AXUGIXDMLQWLQKY6VHANCNFSM4IYSD2HQ">mute the thread</a>.<img src="https://github.com/notifications/beacon/ABE7WYC36HWGTIH5O7POMSLQKY6VHA5CNFSM4IYSD2H2YY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOD7IUGUQ.gif" height="1" width="1" alt="" /></p>
<script type="application/ld+json">[
{
"@context": "http://schema.org",
"@type": "EmailMessage",
"potentialAction": {
"@type": "ViewAction",
"target": "https://github.com/RIOT-OS/RIOT/pull/12278?email_source=notifications\u0026email_token=ABE7WYBFFWYYVUIXUQY623TQKY6VHA5CNFSM4IYSD2H2YY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOD7IUGUQ#issuecomment-533807954",
"url": "https://github.com/RIOT-OS/RIOT/pull/12278?email_source=notifications\u0026email_token=ABE7WYBFFWYYVUIXUQY623TQKY6VHA5CNFSM4IYSD2H2YY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOD7IUGUQ#issuecomment-533807954",
"name": "View Pull Request"
},
"description": "View this Pull Request on GitHub",
"publisher": {
"@type": "Organization",
"name": "GitHub",
"url": "https://github.com"
}
}
]</script>