Re: [rtl] Comedi and Minirtl...

Wed, 12 Jul 2000 Herman Bruyninckx wrote: > We are trying to make MiniRtl floppies with Comedi drivers. But Comedi > seems to need the libc, which is a couple of megabytes big. Is there > another, much smaller ``embedded'' libc available? Is newlib from Cygnus > such an alternative? Would it be po

[rtl] Re: Context Switching Speed - DMA.

Tue, 11 Jul 2000 Norm Dresner wrote: > At 05:14 PM 7/11/2000 +0200, David Olofson wrote: > >Sat, 08 Jul 2000 Andrew Tuckey wrote: > >[...] > > >x86 doesn't have DMA on the chip (*), but uses either the 8 DMA channels > on the > >mainboard chipset (4 x 8 bit + 4 x 16 bit; normally used with ISA bo

[rtl] fifo question

Hello RT world Does a fifo have to be created (using rtf_create or equivalent) in kernel-space before it can simply be opened for reading in user-space? The reason I ask is that I have been unable to open the /dev/rtf0 fifo in user-space. I am actually running the user-space program as root and

Re: [rtl] Comedi and Minirtl...

On Wed, Jul 12, 2000 at 10:06:08AM -0700, Pete Buechler wrote: > On Wed, 12 Jul 2000, Herman Bruyninckx wrote: > > > We are trying to make MiniRtl floppies with Comedi drivers. But Comedi > > seems to need the libc, which is a couple of megabytes big. Is there > > another, much smaller ``embedded

[rtl] Re: system frozen with comedi and higher freq

On Mon, Jul 10, 2000 at 09:48:57AM +0200, Olaf Petzold wrote: > Hallo, > > some times ago I started this thread. Now some days later I had the time to > verify some things (with new comedi-0.7.45, mbuff-6.6), e.g. the hint of using > the right gcc: > > # cat /proc/version > Linux version 2.2.14-

Re: [rtl] RTfifo questions

Tue, 11 Jul 2000 Flavio Cappelli wrote: > Hello all, I use rtlinux v2.2 > > I don't understand if, when I get data from a rt-fifo (rtlinux side) with > 'rtf_get' and less bytes are available than requested, these bytes are > removed from the fifo or if they are removed only when ther'are > enough

Re: [rtl] Can not insmod pci module

Tue, 11 Jul 2000 Mukaila olundegun wrote: > Hi all, > > I tried to install a pci module but I kept receiving device busy > > I do "cat /proc/pci" I found my pci card detected by the kernel (2.2.14 ^^ This is exactly the problem, I'd

Re: [rtl] multithreaded FIFO reading app

Tue, 11 Jul 2000 b m ledvina wrote: > hello again, > > the problem i was having has been eliminated. kinda strange it was. i > was seeing bizarre behavior from a thread trying to read from a fifo, > but the cause wasn't a bug, lack of know how, or a problem with V (the > gui development code)

Re: [rtl] TSC , 8254, and such

Tue, 11 Jul 2000 daniel sheltraw wrote: > Paolo > > Let me see if I got oneshot mode straight. Does it go something like this: > > set up one-shot mode for 8254 > > loop > get time from TSC > compute time until next oneshot task scheduled > program 8254 with this time > {which generates

[rtl] Win32 hosted Cross-Compiler for RTLinux

Hello Realtimers, It would be fine (for my project) if I could compile RTLinux modules on MS Windows. So my question: Is there a Win32 ( Windows95 or Windows NT) hosted GCC cross-compiler. And is it suitable for RTLinux module developing. Thanks James -- [rtl] --- To unsubscribe: echo "uns

Re: [rtl] Comedi and Minirtl...

On Wed, 12 Jul 2000, Herman Bruyninckx wrote: > We are trying to make MiniRtl floppies with Comedi drivers. But Comedi > seems to need the libc, which is a couple of megabytes big. Is there > another, much smaller ``embedded'' libc available? Is newlib from Cygnus > such an alternative? Would it

[rtl] soft_irq_handlers

hi there! first: thanks for your help so far - my plc is ticking like an atomic clock, working really great now. worst jitter so far around +/- 40 microseconds, quite a bit better than our NT-Version of the same plc, only that my machine has only half the processor power :-) And another

[rtl] Comedi and Minirtl...

We are trying to make MiniRtl floppies with Comedi drivers. But Comedi seems to need the libc, which is a couple of megabytes big. Is there another, much smaller ``embedded'' libc available? Is newlib from Cygnus such an alternative? Would it be possible to use it together with Comedi? -- [EMAIL

Re: [rtl] strictly frank

Stuart, i think i get it now, sorry i basically asked the same question twice. the idea of data transfer was stuck in my head. shocking. well i think i'll go read Rubini's now. regards, emeel. Emeel wrote: > > hi all, > thanks Stuart, > may i add a few more bits to the original question please?