How can I avoid pull-down resitors during reset and configure de C167CR manually? After reset the microcontroller I can see with the scope that data bus signal are not good, it falls down slowly and I can not see square signals. The pull-down resistors has a value of 8Kohms. I need a solution . Could you help me? Thanks
First of all, why would you want to get rid of the pull-down resistors? Usually they are not strong enough to distract normal traffic on the bus. After reset the microcontroller I can see with the scope that data bus signal are not good, it falls down slowly and I can not see square signals. I can't see how that can be caused by the pull-down resistors. If you are certain that the resistors are a problem, you can connect pull-downs to the bus via a tri-state buffer, which would cut them off when not in reset state. - mike