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      Ditto. How is any bare metal processor not "real-time"? Unless you
      integrate a badly made OS into your firmware yourself, it's as
      real-time as it gets. The R4F is only one of the bigger real-timey
      processors, as opposed to microcontroller? Or is there a context
      where real-time has a very specific meaning other than it's not
      impeded by a jittery scheduler?<br>
      <br>
      That aside,  I find it slightly amusing that the stm32F7 or H7 or
      whichever it was that has an out-of-order pipeline and
      considerable instruction + data cache and lots of single-cycle
      float OPs that might give the first Pentiums a run for their
      money, is also still considered to be a "microcontroller" :D<br>
      <br>
      I wonder how many football stadiums such a thing would fill in
      1960's tech.<br>
      <br>
      <br>
      Am 22.02.2019 um 02:01 schrieb Declare Update:<br>
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      Brian, I had never considered that an M4 might not be “real time”.
      what do you mean by this? I found this <a moz-do-not-send="true"
href="https://www.design-reuse.com/articles/26106/cortex-r-versus-cortex-m.html">https://www.design-reuse.com/articles/26106/cortex-r-versus-cortex-m.html</a> but
      it didn’t clear it up much.
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      <div>Cheers,</div>
      <div>Chris<br>
        <br>
        <div id="AppleMailSignature" dir="ltr">Sent from my iPhone</div>
        <div dir="ltr"><br>
          On Feb 21, 2019, at 6:44 PM, Brian Willoughby <<a
            moz-do-not-send="true" href="mailto:brianw@audiobanshee.com">brianw@audiobanshee.com</a>>
          wrote:<br>
          <br>
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          <div dir="ltr"><span>Interesting. I wouldn’t call the
              Cortex-M4 a “real-time” MCU. Embedded, certainly, but not
              Real-Time. I think you’d have to look at the Cortex-R4F
              for real-time.</span><br>
            <span></span><br>
            <span>I’m still (sort of) waiting for the open source
              community to support either the TMS320 DSP family or the
              SHARC DSP family. The Aleph was Blackfin, but that’s only
              about half way to SHARC or TMS320 DSP performance.</span><br>
            <span></span><br>
            <span>Brian</span><br>
            <span></span><br>
            <span></span><br>
            <span>On Feb 21, 2019, at 12:47 PM, <a
                moz-do-not-send="true" href="mailto:sleepy_dog@gmx.de">sleepy_dog@gmx.de</a>
              wrote:</span><br>
            <blockquote type="cite"><span>may be of interest for some:</span><br>
            </blockquote>
            <blockquote type="cite"><span></span><br>
            </blockquote>
            <blockquote type="cite"><span>There is a discovery board for
                $ 69,- with this new STMicro processor, 512MB RAM, audio
                codec, SPDIF connectors and other stuff.</span><br>
            </blockquote>
            <blockquote type="cite"><span>The processor has a dual core
                ARM Cortex A7 @ 650 MHz which can run Linux, and one
                Cortex M4 with FPU @ 209 MHz, LCD TFT controller...</span><br>
            </blockquote>
            <blockquote type="cite"><span></span><br>
            </blockquote>
            <blockquote type="cite"><span>Lots of audio projects
                shenanigans could be done with that - which is probably
                also true for the raspberry pi family - but having a
                real-time MCU (the M4) also integrated seems nice for
                some stuff.</span><br>
            </blockquote>
            <blockquote type="cite"><span></span><br>
            </blockquote>
            <blockquote type="cite"><span><a moz-do-not-send="true"
href="https://www.cnx-software.com/2019/02/21/stmicro-stm32mp1-cortex-a7-m4-mpu/">https://www.cnx-software.com/2019/02/21/stmicro-stm32mp1-cortex-a7-m4-mpu/</a></span><br>
            </blockquote>
            <blockquote type="cite"><span></span><br>
            </blockquote>
            <blockquote type="cite"><span></span><br>
            </blockquote>
            <span></span><br>
            <span>_______________________________________________</span><br>
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