According to the PIC12F1572 datasheet, rising edge IOC can be detected by enabling edge detection on input pins (IOCAPx or IOCANx) and reading the IOC flag (IOCAFx) or the INTCON_IOCIF, then clearing the flag for the next IOC detection. Seems it does not work. Any ideas? Thx.
include 12lf1572 -- target PICmicro -- -- This program uses the internal oscillator at 4 MHz. pragma target clock 32_000_000 -- oscillator frequency -- pragma target OSC INTOSC_NOCLKOUT -- internal oscillator pragma target PLLEN DISABLED -- PLL off pragma target CLKOUTEN DISABLED -- no clock output pragma target WDT DISABLED -- watchdog pragma target BROWNOUT ENABLED -- brownout reset pragma target LVP DISABLED -- no low voltage programming pragma target MCLR INTERNAL -- internal reset -- -- OSCCON_SCS = 0 -- select primary oscillator OSCCON_IRCF = 0b1110 -- 8 MHz OSCCON_SPLLEN = ENABLED -- 4x PLL: 8 -> 32 MHz -- enable_digital_io() -- make all pins digital I/O include delay alias pin_RDY_IN is pin_A0 alias pin_RDY_IN_direction is pin_A0_direction pin_RDY_IN_direction = input alias pin_RDY_OUT is pin_A5 alias pin_RDY_OUT_direction is pin_A5_direction pin_RDY_OUT_direction = output pin_RDY_OUT = low OPTION_REG_WPUEN = 0 WPUA_WPUA0 = 0 ; pull-up disabled on RA0 -- main program -- ---------------------------------------------------------------------------- INTCON_GIE = high ; not necessary without interrupt routine INTCON_IOCIE = high ; enable interrupt on change, not necessary without interrupt routine IOCAP_IOCAP0 = high ; enable positive edge interrupt on change on RDY_IN forever loop ; if INTCON_IOCIF then if IOCAF_IOCAF0 then ; a positive edge interrupt on change on RDY_IN occured pin_RDY_OUT = high delay_1mS (20) pin_RDY_OUT = low IOCAF_IOCAF0 = low ; clear IOCAF0 flag ; INTCON_IOCIF = low else ; no interrupt occured pin_RDY_OUT = low end if end loop -- 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 jallib+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/jallib/CAM%2Bj4qvv6k0rGBYftBOhsT7HR4wJe8GrM8_vEGUPiTk3MVa%2B8Q%40mail.gmail.com.