Configuring the same pin as input and output

Is it possible using the ARM9 to configure a pin as both input and output? I need to be able to write to it and then read from it. This would be done as an open collector configuration. I have tried...
Configuring the same pin as input and output

Is it possible using the ARM9 to configure a pin as both input and output? I need to be able to write to it and then read from it. This would be done as an open collector configuration. I have tried...
how to assign the port as an input port

for using keil cx51 version
how to assign the port as an input port

for using keil cx51 version
to check the mapping for one input to one output in my application

sir i am facing a problem to map my inputs and outputs in the if condition that is in read input data bit for multiple pins kindly help me the same. #include "stm32f0xx.h" #include "stm32f0308_Discovery...