On 486s, yes, we use the PC speaker timer channel internally. On Pentiums and higher, beeps should work as usual. Michael. Andrew Vaught ([EMAIL PROTECTED]) wrote: > Hi-- > > I'm running version 3 of RTLinux and it works great. The only minor nit > I have is that the beep on my IBM compatible pc speaker is just a low > buzzing sound instead of the usual 750Hz. I've tried using the console > escape sequences to raise the frequency of the beep, but although this > works fine when not running RTLinux, it doesn't appear to change the > frequency with RTLinux. Trying the same thing with the beep duration > works fine. > > From what I understand of how the pc speaker circuitry works, a timer is > programmed with the frequency, and the connection to the speaker is then > enabled and later disabled, producing a beep. Is this timer being used > internally by RTLinux?? > > My application is a loop that gets control every 10ms for about 1-2ms. > Anyone know how I can get the beep back? > > Andy > > ----------------- XOLD(K,IC,I)= > Andy Vaught .... DO ITERS=1, 10 XOLD(K,IC,I) > [EMAIL PROTECTED] | | /CALLMSOLVE(A,B,X,I,ITERS,TOL)+(RANNYU(0) > Arizona State University ======|WRITE(6,'(I5,2X,F12.6)')ITERS,TOL -HALF) > Tempe, Arizona USA OOOOOO \ENDDORETURN PARAMETER(ZERO=1.D0)*TENTH*DELTA > > ----- End of forwarded message from [EMAIL PROTECTED] ----- > -- [rtl] --- > To unsubscribe: > echo "unsubscribe rtl" | mail [EMAIL PROTECTED] OR > echo "unsubscribe rtl <Your_email>" | mail [EMAIL PROTECTED] > -- > For more information on Real-Time Linux see: > http://www.rtlinux.org/rtlinux/ -- [rtl] --- To unsubscribe: echo "unsubscribe rtl" | mail [EMAIL PROTECTED] OR echo "unsubscribe rtl <Your_email>" | mail [EMAIL PROTECTED] -- For more information on Real-Time Linux see: http://www.rtlinux.org/rtlinux/
