Hi Mooneer
thanks for the comments. The FDIV on the ESP32-S3 is very slow I think
80 cycles, but of course one should always use RECIPS and a MUL.
Integer div is a couple of cycles IIRC.
I'll start and see what jams it all up .
regards,
On 21/11/2023 4:01 pm, Mooneer Salem wrote:
Hi Glen,
I seem to remember that there was a previous project that implemented
it on a FPGA, but I can't recall specifics at the moment. FWIW, on
ezDV (ESP32-S3 but should perform similarly to the STM32F4 on the
SM1000), 700D TX took something like ~90ms per 160ms frame while RX
using real-only (vs. complex numbers) was something like 40ms per
160ms frame. Unfortunately, I never did do a detailed accounting of
what parts of encode and decode took the most time on the ESP32.
Thanks,
_______________________________________________
Freetel-codec2 mailing list
Freetel-codec2@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/freetel-codec2
