Karl, I'm synchronizing 64 microcontrollers...I'm already stuck on hardware I could do it better than that, but perhaps next time only....:( thx!
On Mon, Oct 4, 2021 at 7:50 AM 'Oliver Seitz' via jallib < [email protected]> wrote: > Hi! > > Good to hear it's working now. > > About what you're describing, it depends on what "precisely" means. You > can choose a newer chip like from the Q43 series and use the peripherals. > There's a CWG which has a shutdown feature that switches of the output when > a configurable interrupt fires - with no software latency at all. > > Greets, > Kiste > > > > > Am Montag, 4. Oktober 2021, 07:19:07 MESZ hat vsurducan < > [email protected]> Folgendes geschrieben: > > > > > > Rob, I like your way of tricking the problem. :) > The final effect looks better, now indeed it detects the positive edge of > RDY_IN. Assuming the RDY_In is 20ms and RDY_OUT delay in the main loop is > say 1ms that can be correctly seen. > The IOC is almost the same of mine (which started as jal and ended as > assembler) > But if you need to precise control the RDY_OUT time, that seems impossible > in a long main loop which is also large jitter generator ( using the > USB_serial for instance) . > Imagine that RDY_IN varies between say 100us to 100ms and RDY_OUT must > stay high a precise time until user reset it. The RDY_OUT control has to be > moved in the ISR, but then no delay will be allowed to catch the rising > edge...an interrupt timer delay must be implemented. > thanks for your help! > > On Sun, Oct 3, 2021 at 3:45 PM Rob Hamerling <[email protected]> > wrote: > > > > > > Hi Vasili, > > > > Follow up of my previous message ... > > > > > > On 03/10/2021 10.32, vsurducan wrote: > > > > > >> > >> > >> > >> On the other hand, if you set only the detection of the rising edge ( > IOCAP_IOCAP0 = high, IOCAN_IOCAN0 = low), RDY_OUT stayed indefinitely on > high even on RDY_IN a positive edge occured, which seems wrong. > >> > >> > >> > >> > > With only rising edge interrupts this is a possibility: > > > > > > procedure IOC() is > > pragma interrupt > > if INTCON_IOCIF & IOCAF_IOCAF0 then -- edge interrupt on RDY_IN > > IOCAF = IOCAF & 0xFE -- clear IOCAF0 > > pin_RDY_OUT = high -- RDY_OUT high > > end if > > end procedure > > > > forever loop > > if pin_RDY_OUT then > > delay_1ms(20) > > pin_RDY_OUT = low > > end if > > end loop > > > > > > > > > > -- > > Rob Hamerling, Vianen, NL > > > > > > > > -- > > You received this message because you are subscribed to the Google > Groups "jallib" group. > > To unsubscribe from this group and stop receiving emails from it, send > an email to [email protected]. > > To view this discussion on the web visit > https://groups.google.com/d/msgid/jallib/76b8a82d-2e79-89b6-47b1-98169e4c0aae%40gmail.com > . > > > > > -- > You received this message because you are subscribed to the Google Groups > "jallib" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/jallib/CAM%2Bj4qsXs%2BJXfaaN10tYtfF6R-jO7OeyMTyqfXN8SzV-bSgGoQ%40mail.gmail.com > . > > -- > You received this message because you are subscribed to the Google Groups > "jallib" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/jallib/1148764833.933296.1633326615052%40mail.yahoo.com > . > -- You received this message because you are subscribed to the Google Groups "jallib" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/jallib/CAM%2Bj4qsABhC4U5dgNy7WyKbMJH2LuVWashS2ZCqb6RN97j%3DKNA%40mail.gmail.com.
