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    <title>topic MKE18F512VLL16 CAN RX FIFO in Kinetis Microcontrollers</title>
    <link>https://community.nxp.com/t5/Kinetis-Microcontrollers/MKE18F512VLL16-CAN-RX-FIFO/m-p/743502#M45300</link>
    <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;Enable Rx FIFO,&lt;/P&gt;&lt;P&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;CANx_IFLAG1_BUF7I: Rx FIFO Overflow&lt;/P&gt;&lt;P&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;SPAN&gt;&amp;nbsp;CANx_IFLAG1_BUF6I: Rx FIFO Warning&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;CANx_IFLAG1_BUF5I: Frames available in Rx FIFO&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN&gt;In CAN interrupt(Frames available in Rx FIFO), read the Rx FIFO, how to find how many received frames in FIFO? Or how to find the all frames in FIFO are read out?&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; &lt;SPAN&gt;CANx_IFLAG1_BUF0I: Clear FIFO&amp;nbsp;&lt;/SPAN&gt;&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN&gt;&lt;SPAN&gt;How to clear FIFO? In normal mode goto Freeze Mode，then set the bit&amp;nbsp;CANx_IFLAG1_BUF0I?&amp;nbsp;&lt;/SPAN&gt;&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN&gt;&lt;SPAN&gt;Whether every time after I read the Rx FIFO, then clear the FIFO?&amp;nbsp;&lt;/SPAN&gt;&lt;/SPAN&gt;&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
    <pubDate>Wed, 18 Apr 2018 07:34:07 GMT</pubDate>
    <dc:creator>lifeng</dc:creator>
    <dc:date>2018-04-18T07:34:07Z</dc:date>
    <item>
      <title>MKE18F512VLL16 CAN RX FIFO</title>
      <link>https://community.nxp.com/t5/Kinetis-Microcontrollers/MKE18F512VLL16-CAN-RX-FIFO/m-p/743502#M45300</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;Enable Rx FIFO,&lt;/P&gt;&lt;P&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;CANx_IFLAG1_BUF7I: Rx FIFO Overflow&lt;/P&gt;&lt;P&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;SPAN&gt;&amp;nbsp;CANx_IFLAG1_BUF6I: Rx FIFO Warning&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;CANx_IFLAG1_BUF5I: Frames available in Rx FIFO&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN&gt;In CAN interrupt(Frames available in Rx FIFO), read the Rx FIFO, how to find how many received frames in FIFO? Or how to find the all frames in FIFO are read out?&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; &lt;SPAN&gt;CANx_IFLAG1_BUF0I: Clear FIFO&amp;nbsp;&lt;/SPAN&gt;&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN&gt;&lt;SPAN&gt;How to clear FIFO? In normal mode goto Freeze Mode，then set the bit&amp;nbsp;CANx_IFLAG1_BUF0I?&amp;nbsp;&lt;/SPAN&gt;&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN&gt;&lt;SPAN&gt;Whether every time after I read the Rx FIFO, then clear the FIFO?&amp;nbsp;&lt;/SPAN&gt;&lt;/SPAN&gt;&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Wed, 18 Apr 2018 07:34:07 GMT</pubDate>
      <guid>https://community.nxp.com/t5/Kinetis-Microcontrollers/MKE18F512VLL16-CAN-RX-FIFO/m-p/743502#M45300</guid>
      <dc:creator>lifeng</dc:creator>
      <dc:date>2018-04-18T07:34:07Z</dc:date>
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