Siggen.N.frequency

I need a variable frequency ttl outpit. My machine is using 2 parports. I have it working via a siggen in hal and I am using motion.alalog to set the frequency through Glade panel manually and M68 in my programs.

I need my frequency to range from 0 to 27Khz (as it is setup in Glade) however it is saturating at 498.xxxxxx hz.

How can I check to see if this is a limitation of my parport or a hal/Glade issue?

Thanks

You should be able to get to 1/2 of your base thread frequency with a square wave output and up to your base thread frequency if you use a stepgen+reset instead if siggen

If you can only get to ~500 Hz this suggests that siggen.update is linked to the servo thread (at 1 KHz) rather than the base thread

i have in hal

loadrt threads period1=1000000 name1=thread
addf siggen.0.update thread

siggen.0 is the only one using thread

i noticed if i make it 10000000 my max frequency is 49.8xxxx and if i make it anything less than 1000000 linuxcnc will not start

???