Jan,
I have two real-time requirements:
1. I have to get audio from ALSA and deliver it to a custom FPGA driver and
vice versa each 5 miliseconds.
So, I will set the chunk size for ALSA in such a way I get 5 ms audio
samples. From the FPGA I also get chunks of 5ms.
There may be some jitter in delivering between ALSA and FPGA but think
of one or two miliseconds.
2. I want to receive 5ms audio from ALSA and after filtering and processing
it I have to sent it back to ALSA.
This must be done within 10ms.
We tested the real-time patches but the interrupt latency was not good
enough on our Blackfin 537 DSP (measured with a latency measuring tool).
With Xenomai installed the latency tool showed very good response. So I want
to go the Xenomai way.
So therefor I like to know more about the Xenomai / Linux interaction and
the performance measuring method (see original mailing).
Ernst-Jan
_______________________________________________
Xenomai-help mailing list
[email protected]
https://mail.gna.org/listinfo/xenomai-help
