Topic: HDSPe AIO not working

Hi :)

I've got serious issues using the HDSPe AIO. I still get xruns
at sample rate 48000 Hz and frames/period 256.
The analog IOs 1 and 2 and ADAT IOs 1 and 2 can be used with jack, but
ADAT 3 to 8 are not available by jack capture and playback ports.

$ cat /etc/issue
Ubuntu 12.10 \n \l

$ uname -a
Linux qrc 3.6.5-rt14 #1 SMP PREEMPT RT Fri Nov 2 21:36:37 CET 2012
x86_64 x86_64 x86_64 GNU/Linux

$ grep 18: /proc/interrupts
18:          0          4   IO-APIC-fasteoi   snd_hdspm

$ /etc/init.d/rtirq status

  PID CLS RTPRIO  NI PRI %CPU STAT COMMAND   
   62 FF      90   - 130  0.0 S    irq/8-rtc0   
  818 FF      85   - 125  0.0 S    irq/18-snd_hdsp   
   54 FF      80   - 120  0.0 S    irq/19-ehci_hcd   
   55 FF      80   - 120  0.0 S    irq/16-ohci_hcd   
   56 FF      79   - 119  0.1 S    irq/17-ohci_hcd   
   59 FF      78   - 118  0.0 S    irq/17-ohci_hcd   
   61 FF      75   - 115  0.0 S    irq/1-i8042   
   24 FF      50   -  90  0.0 S    irq/9-acpi   
   46 FF      50   -  90  0.0 S    irq/22-ahci   
  246 FF      50   -  90  0.0 S    irq/14-pata_ati   
  248 FF      50   -  90  0.0 S    irq/15-pata_ati   
  648 FF      50   -  90  0.0 S    irq/7-parport0   
  820 FF      50   -  90  0.0 S    irq/43-radeon   
1295 FF      50   -  90  0.0 S    irq/42-eth0   
    3 FF       1   -  41  0.0 S    ksoftirqd/0   
   15 FF       1   -  41  0.1 S    ksoftirqd/1

CPU frequency scaling governor is set to performance, bluetooth and
cups are stopped.

Is it true that ADAT sync is known as being not good? Sync between the
analog IOs and ADAT is delayed.

Jack MIDI latency test is ok.

Same results when tested with different kernel versions, architectures, distros and ALSA/hdspmixer versions.

Regards,
Ralf

Re: HDSPe AIO not working

The ADAT delay/offset is due to different conversion delay times of individual converters. Not an issue of ADAT or the card itself.

Regards
Daniel Fuchs
RME