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According to Analog's product page [1] for the ADSP-21469, it delivers 2.7 GFLOPS at 450 MHz. And Wikipedia's page of all the RPi models says that the latest (
by unwind 4y ago
According to Analog's product page [1] for the ADSP-21469, it delivers 2.7 GFLOPS at 450 MHz.
And Wikipedia's page of all the RPi models says that the latest (4B) manages 8 GFLOPS at around 1.8 GHz.
If that means that the answer to your question is "yes" or "no" is unfortunately a lot harder to Google and/or figure out. I would assume that the SHARC-based devices run on the metal, whereas most applications for the Raspberry Pi run under Linux, for instance.
[1]: https://www.analog.com/en/products/adsp-21469.html#product-overview https://www.analog.com/en/products/adsp-21469.html#product-o...
[2]: https://en.wikipedia.org/wiki/Raspberry_Pi#Simplified_Model_B_changelog https://en.wikipedia.org/wiki/Raspberry_Pi#Simplified_Model_...
Edit: grammarish.
- renewedrebecca 4y agoI'd love to see one of these Raspberry Pi guitar FX projects run on bare metal or a RTOS instead of Linux.
- prima-facie 4y agoThere's also a real-time version of the Linux kernel which is meant for exactly this type of application.
- rerdavies 4y agoMost of the real-time Linux kernel has been ported into mainline. Mainline is perfectly capable of producing stable low-latency audio, as long as you're running on threads with real-time priority. The real-time kernel provides additional improvements. But it's incredibly difficult to find up-to-date real-time kernels these days.
- rerdavies 4y agoAlso worth mentioning that there are enormous USB audio improvements in kernel version 5.10.0, both for performance, stability, and compatibility. As far as I know, there are no real-time kernels available for Pi 4 with a kernel version greater than 5.10.0, and building one is painfully difficult.