> This could actually be a great problem I my self have created several > PLC controllers where I wanted the output to be high on birth and when > its undetermined a weak pull up insured the state. Currently there are 2 Output pins on my prototype board that requires pullup resistors to work, or else I'll have no way of controlling them. > Using additional logic, transistors etc. all costs money and I actually > think It's sad that Philips didn't make their hardware "the right way" > from the start... Point taken on the cost factor...unfortunately, most mcu's aren't that perfect yet because of cases where the firmware just can't get around critical hardware problems. That's the "give-and-take" nature of the design game.
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Re: LPC2xxx GPIO Outputs Born LOW
2004-10-27 by Leighton Rowe
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