On 05/03/2011 02:07 PM, Aurele Traynard wrote: > hello, > > I am writing a little test. I put all my RT things in a module : one ISR and > one RT task. > in init_module I call : > > drv->data.regs = ioremap(0x04000000, 64*1024*1024); > drv->data.gpio = ioremap(0x40E00000, 64*1024*1024); > this is to acces registers > > rthal_irq_request(8, my_rt_isr, NULL, &(drv->data)); > rthal_irq_enable(8); > for the ISR > > in my interrupt routine I use : writel(1, data->gpio + 0x48); for hardware > interrupt acknowledge > > but when my interrupt routine is called linux is freezing so i think that I > am never going out of the ISR (I am 99.9% sure). > I am not sure but I think that It is due to the hardware interrupt > aknoledge... > > my question is : > can I call "writel(1, data->gpio + 0x48);" in my ISR? > is it good or not? > is there an other way to access registers? > > thanks for your answers. > > PS firstly I was calling : "GEDR0 = 0x1;" but in RT task this macro doesn't > work
Why is that? What are the symptoms? Other than that, have a look at: http://www.xenomai.org/index.php/Request_for_information -- Gilles. _______________________________________________ Xenomai-help mailing list [email protected] https://mail.gna.org/listinfo/xenomai-help
