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    <title>topic Re: LPC1800 Sleep Modes in LPC Microcontrollers</title>
    <link>https://community.nxp.com/t5/LPC-Microcontrollers/LPC1800-Sleep-Modes/m-p/539996#M11979</link>
    <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;STRONG&gt;Content originally posted in LPCWare by bavarian on Wed May 14 08:39:42 MST 2014&lt;/STRONG&gt;&lt;BR /&gt;&lt;SPAN&gt;Yes, that's normal. The User Manual mentions this:&lt;/SPAN&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;I&gt;Due to limitations of the Cortex-M4 integration, the LPC43xx cannot wake up in the&lt;BR /&gt;usual manner from Deep Sleep and Power-down modes. Do not use these modes&lt;BR /&gt;during debug.&lt;/I&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;SPAN&gt;At least the debuggers from LPCXpresso or Keil or IAR will not survive these modes, they don't accept that the chip is not longer reachable.&lt;/SPAN&gt;&lt;BR /&gt;&lt;SPAN&gt;I think that a debugger like the one from Lauterbach is mor eflexible in that, but you pay the price&amp;nbsp;&amp;nbsp; 8-) &lt;/SPAN&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;SPAN&gt;Regards,&lt;/SPAN&gt;&lt;BR /&gt;&lt;SPAN&gt;NXP Support Team &lt;/SPAN&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
    <pubDate>Wed, 15 Jun 2016 18:23:28 GMT</pubDate>
    <dc:creator>lpcware</dc:creator>
    <dc:date>2016-06-15T18:23:28Z</dc:date>
    <item>
      <title>LPC1800 Sleep Modes</title>
      <link>https://community.nxp.com/t5/LPC-Microcontrollers/LPC1800-Sleep-Modes/m-p/539995#M11978</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;STRONG&gt;Content originally posted in LPCWare by vanderberg on Mon May 12 14:57:40 MST 2014&lt;/STRONG&gt;&lt;BR /&gt;&lt;SPAN&gt;Can someone confirm the following?&lt;/SPAN&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;SPAN&gt;When using the Deep-Sleep or Power-Down modes on the LPC1800, we lose JTAG/SWD debug access. Debugging does not return when we wake up from Deep-Sleep or Power-Down modes. &lt;/SPAN&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;SPAN&gt;Correct?&amp;nbsp; &lt;/SPAN&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;SPAN&gt;I am using the LPC1837 evaluation board with the LPXpresso IDE.&lt;/SPAN&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Wed, 15 Jun 2016 18:23:27 GMT</pubDate>
      <guid>https://community.nxp.com/t5/LPC-Microcontrollers/LPC1800-Sleep-Modes/m-p/539995#M11978</guid>
      <dc:creator>lpcware</dc:creator>
      <dc:date>2016-06-15T18:23:27Z</dc:date>
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    <item>
      <title>Re: LPC1800 Sleep Modes</title>
      <link>https://community.nxp.com/t5/LPC-Microcontrollers/LPC1800-Sleep-Modes/m-p/539996#M11979</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;STRONG&gt;Content originally posted in LPCWare by bavarian on Wed May 14 08:39:42 MST 2014&lt;/STRONG&gt;&lt;BR /&gt;&lt;SPAN&gt;Yes, that's normal. The User Manual mentions this:&lt;/SPAN&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;I&gt;Due to limitations of the Cortex-M4 integration, the LPC43xx cannot wake up in the&lt;BR /&gt;usual manner from Deep Sleep and Power-down modes. Do not use these modes&lt;BR /&gt;during debug.&lt;/I&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;SPAN&gt;At least the debuggers from LPCXpresso or Keil or IAR will not survive these modes, they don't accept that the chip is not longer reachable.&lt;/SPAN&gt;&lt;BR /&gt;&lt;SPAN&gt;I think that a debugger like the one from Lauterbach is mor eflexible in that, but you pay the price&amp;nbsp;&amp;nbsp; 8-) &lt;/SPAN&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;SPAN&gt;Regards,&lt;/SPAN&gt;&lt;BR /&gt;&lt;SPAN&gt;NXP Support Team &lt;/SPAN&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Wed, 15 Jun 2016 18:23:28 GMT</pubDate>
      <guid>https://community.nxp.com/t5/LPC-Microcontrollers/LPC1800-Sleep-Modes/m-p/539996#M11979</guid>
      <dc:creator>lpcware</dc:creator>
      <dc:date>2016-06-15T18:23:28Z</dc:date>
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