??? 08/01/06 16:58 Read: times |
#121502 - there is no reason, but 'linear thinking' (outputs Responding to: ???'s previous message |
Yes, there are often undesirable effects associated with attaching one output to another. It's not advisable practice, but INPUTs to outputs, in this case WEAK pullups, if available, will cause no damaging effects.
There is no reason, but 'linear thinking' (outputs should be push-pull) to configure the keypad outputs as push-pull. The keypad (if reasonably close to the processor) will work equally well with weak pull-up as with push-pull. Erik |