----- Original Message ----- From: "Daniele Salatti" To: Sent: Thursday, August 07, 2008 3:06 PM Subject: Re: [PIC] Help on PIC16F628A - blinking LED > Hi again! > >> Is it a solid on ? Might there be a fast on/off loop ? How does its >> brightness compare with a steady 5V supply ? > > Compared with a steady 5V supply the brightness is lower... This could > be a symptom of a too fast on/off loop? > >> Get it going in MPLAB Sim before even doing the hardware? > > MPLAB doesn't work on Linux, but I can try to install it with WINE... > > Dan > Dan, If your delay really is 250ms, you are turning the the LED on and off twice each second. It may appear to be always on. Try lengthening your delay (maybe change the movlw 0x01 to between 0x02 and 0x04) to see if that gives you an observable pattern. The 0x02 should give you a .5 second delay; 0x04 about 1 second. Good luck, Richard -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist