declareupdate at gmail.com
Fri Feb 22 02:01:04 CET 2019
Brian, I had never considered that an M4 might not be “real time”. what do you mean by this? I found this https://www.design-reuse.com/articles/26106/cortex-r-versus-cortex-m.html but it didn’t clear it up much.
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> On Feb 21, 2019, at 6:44 PM, Brian Willoughby <brianw at audiobanshee.com> wrote:
> 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.
> 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.
>> On Feb 21, 2019, at 12:47 PM, sleepy_dog at gmx.de wrote:
>> may be of interest for some:
>> There is a discovery board for $ 69,- with this new STMicro processor, 512MB RAM, audio codec, SPDIF connectors and other stuff.
>> 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...
>> 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.
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