Marechiare wrote: >> since it violates the abs. max. ratings of the chip and >> thus is not a valid solution. > > I said: > (assuming inputs would tolerate it). Fine, if you wish to change the rules in the middle of the game, you win, have fun! I don't so much care for "Calvinball". Cheerful regards, Bob -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist