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Timer Interrupts

 
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urchin



Joined: 02 Jun 2005
Posts: 121
PostPosted: Thu Nov 03, 2005 7:52 pm    Post subject: Timer Interrupts Reply with quote
I noticed that PSP_SYSTIMER0_INT and a few others have been added to the interrupt manager header file. Can these be used to interrupt at user defined intervals?

I have already got PSP_VBLANK_INT working nicely in my code.
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Shazz



Joined: 31 Aug 2004
Posts: 244
Location: Somewhere over the rainbow
PostPosted: Fri Nov 25, 2005 7:53 pm    Post subject: Reply with quote
what a good question :D

I wonder if the timers are configurable as they were on the PS2 (bus clock, HBL, VBL,...), the resolution (16b ? 32b ?) and so on...
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urchin



Joined: 02 Jun 2005
Posts: 121
PostPosted: Thu Dec 01, 2005 11:58 pm    Post subject: Reply with quote
I tried substituting PSP_SYSTIMER0_INT (1, 2, 3 etc.) for PSP_VBLANK_INT but my callback was never called. Can anyone shed more light on this?
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TyRaNiD



Joined: 18 Jan 2004
Posts: 918
PostPosted: Fri Dec 02, 2005 4:29 am    Post subject: Reply with quote
I would probably guess that these are used by the kernels systimer module and are not for use by user level applications. If you could get rid of the kernel, or work out the interface to systimer.prx you might be able to indirectly use them in your own code. However in likelyhood the best you are going to get is by using things like sceKernelSetAlarm
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