Nup, it's just a plain old 16f628, i thought i'd blown up the chip so I tried another and no luck either - the only thing diff that I don't normally do is use a crystal - I have a long time ago but not recently
Cheers
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Nup, it's just a plain old 16f628, i thought i'd blown up the chip so I tried another and no luck either - the only thing diff that I don't normally do is use a crystal - I have a long time ago but not recently
Cheers
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Another (probably bad) idea, I know your MCLR is defined as off, have you tried a pullup on it anyways?Originally Posted by George
Voltage on Vdd?
Have you let it run for more than about 10 seconds? If the LEDs are flashing at about 10 second intervals, somehow it might be getting on the internal 37khz clock instead of your 4mhz clock.
Last edited by skimask; - 2nd April 2007 at 04:26.
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You've got a great chip to play with as a starter... that's because you can run on INTERNAL OSCILLATOR and INTERNAL MCLR... that eliminates two sources of trouble for a newbie... all you have to do then is worry about putting 5v on the proper pin on the chip, and stuffing a correct program into it. Excuse me for mentioning it, and don't be offended, but you are connecting the LED the correct way around too?
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